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feat(grpc): initial grpc server. (#253)

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* feat(grpc): initial grpc server.

* refactor(vendor): add missing vendor.

* fix testing

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
This commit is contained in:
Bo-Yi Wu
2017-07-24 15:06:23 +08:00
committed by GitHub
parent 478e39ec65
commit 9a52f8f2b5
102 changed files with 21796 additions and 441 deletions
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102
vendor/golang.org/x/net/context/context.go generated vendored
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@@ -36,103 +36,6 @@
// Contexts.
package context // import "golang.org/x/net/context"
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// Background returns a non-nil, empty Context. It is never canceled, has no
// values, and has no deadline. It is typically used by the main function,
// initialization, and tests, and as the top-level Context for incoming
@@ -149,8 +52,3 @@ func Background() Context {
func TODO() Context {
return todo
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

20
vendor/golang.org/x/net/context/go19.go generated vendored Normal file
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@@ -0,0 +1,20 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package context
import "context" // standard library's context, as of Go 1.7
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context = context.Context
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc = context.CancelFunc

109
vendor/golang.org/x/net/context/pre_go19.go generated vendored Normal file
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@@ -0,0 +1,109 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package context
import "time"
// A Context carries a deadline, a cancelation signal, and other values across
// API boundaries.
//
// Context's methods may be called by multiple goroutines simultaneously.
type Context interface {
// Deadline returns the time when work done on behalf of this context
// should be canceled. Deadline returns ok==false when no deadline is
// set. Successive calls to Deadline return the same results.
Deadline() (deadline time.Time, ok bool)
// Done returns a channel that's closed when work done on behalf of this
// context should be canceled. Done may return nil if this context can
// never be canceled. Successive calls to Done return the same value.
//
// WithCancel arranges for Done to be closed when cancel is called;
// WithDeadline arranges for Done to be closed when the deadline
// expires; WithTimeout arranges for Done to be closed when the timeout
// elapses.
//
// Done is provided for use in select statements:
//
// // Stream generates values with DoSomething and sends them to out
// // until DoSomething returns an error or ctx.Done is closed.
// func Stream(ctx context.Context, out chan<- Value) error {
// for {
// v, err := DoSomething(ctx)
// if err != nil {
// return err
// }
// select {
// case <-ctx.Done():
// return ctx.Err()
// case out <- v:
// }
// }
// }
//
// See http://blog.golang.org/pipelines for more examples of how to use
// a Done channel for cancelation.
Done() <-chan struct{}
// Err returns a non-nil error value after Done is closed. Err returns
// Canceled if the context was canceled or DeadlineExceeded if the
// context's deadline passed. No other values for Err are defined.
// After Done is closed, successive calls to Err return the same value.
Err() error
// Value returns the value associated with this context for key, or nil
// if no value is associated with key. Successive calls to Value with
// the same key returns the same result.
//
// Use context values only for request-scoped data that transits
// processes and API boundaries, not for passing optional parameters to
// functions.
//
// A key identifies a specific value in a Context. Functions that wish
// to store values in Context typically allocate a key in a global
// variable then use that key as the argument to context.WithValue and
// Context.Value. A key can be any type that supports equality;
// packages should define keys as an unexported type to avoid
// collisions.
//
// Packages that define a Context key should provide type-safe accessors
// for the values stores using that key:
//
// // Package user defines a User type that's stored in Contexts.
// package user
//
// import "golang.org/x/net/context"
//
// // User is the type of value stored in the Contexts.
// type User struct {...}
//
// // key is an unexported type for keys defined in this package.
// // This prevents collisions with keys defined in other packages.
// type key int
//
// // userKey is the key for user.User values in Contexts. It is
// // unexported; clients use user.NewContext and user.FromContext
// // instead of using this key directly.
// var userKey key = 0
//
// // NewContext returns a new Context that carries value u.
// func NewContext(ctx context.Context, u *User) context.Context {
// return context.WithValue(ctx, userKey, u)
// }
//
// // FromContext returns the User value stored in ctx, if any.
// func FromContext(ctx context.Context) (*User, bool) {
// u, ok := ctx.Value(userKey).(*User)
// return u, ok
// }
Value(key interface{}) interface{}
}
// A CancelFunc tells an operation to abandon its work.
// A CancelFunc does not wait for the work to stop.
// After the first call, subsequent calls to a CancelFunc do nothing.
type CancelFunc func()

641
vendor/golang.org/x/net/http2/ciphers.go generated vendored Normal file
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@@ -0,0 +1,641 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
// A list of the possible cipher suite ids. Taken from
// http://www.iana.org/assignments/tls-parameters/tls-parameters.txt
const (
cipher_TLS_NULL_WITH_NULL_NULL uint16 = 0x0000
cipher_TLS_RSA_WITH_NULL_MD5 uint16 = 0x0001
cipher_TLS_RSA_WITH_NULL_SHA uint16 = 0x0002
cipher_TLS_RSA_EXPORT_WITH_RC4_40_MD5 uint16 = 0x0003
cipher_TLS_RSA_WITH_RC4_128_MD5 uint16 = 0x0004
cipher_TLS_RSA_WITH_RC4_128_SHA uint16 = 0x0005
cipher_TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 uint16 = 0x0006
cipher_TLS_RSA_WITH_IDEA_CBC_SHA uint16 = 0x0007
cipher_TLS_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0008
cipher_TLS_RSA_WITH_DES_CBC_SHA uint16 = 0x0009
cipher_TLS_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x000A
cipher_TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x000B
cipher_TLS_DH_DSS_WITH_DES_CBC_SHA uint16 = 0x000C
cipher_TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0x000D
cipher_TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x000E
cipher_TLS_DH_RSA_WITH_DES_CBC_SHA uint16 = 0x000F
cipher_TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x0010
cipher_TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0011
cipher_TLS_DHE_DSS_WITH_DES_CBC_SHA uint16 = 0x0012
cipher_TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0x0013
cipher_TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0014
cipher_TLS_DHE_RSA_WITH_DES_CBC_SHA uint16 = 0x0015
cipher_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x0016
cipher_TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 uint16 = 0x0017
cipher_TLS_DH_anon_WITH_RC4_128_MD5 uint16 = 0x0018
cipher_TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA uint16 = 0x0019
cipher_TLS_DH_anon_WITH_DES_CBC_SHA uint16 = 0x001A
cipher_TLS_DH_anon_WITH_3DES_EDE_CBC_SHA uint16 = 0x001B
// Reserved uint16 = 0x001C-1D
cipher_TLS_KRB5_WITH_DES_CBC_SHA uint16 = 0x001E
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_SHA uint16 = 0x001F
cipher_TLS_KRB5_WITH_RC4_128_SHA uint16 = 0x0020
cipher_TLS_KRB5_WITH_IDEA_CBC_SHA uint16 = 0x0021
cipher_TLS_KRB5_WITH_DES_CBC_MD5 uint16 = 0x0022
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_MD5 uint16 = 0x0023
cipher_TLS_KRB5_WITH_RC4_128_MD5 uint16 = 0x0024
cipher_TLS_KRB5_WITH_IDEA_CBC_MD5 uint16 = 0x0025
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA uint16 = 0x0026
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA uint16 = 0x0027
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_SHA uint16 = 0x0028
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5 uint16 = 0x0029
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5 uint16 = 0x002A
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_MD5 uint16 = 0x002B
cipher_TLS_PSK_WITH_NULL_SHA uint16 = 0x002C
cipher_TLS_DHE_PSK_WITH_NULL_SHA uint16 = 0x002D
cipher_TLS_RSA_PSK_WITH_NULL_SHA uint16 = 0x002E
cipher_TLS_RSA_WITH_AES_128_CBC_SHA uint16 = 0x002F
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA uint16 = 0x0030
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA uint16 = 0x0031
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA uint16 = 0x0032
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA uint16 = 0x0033
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA uint16 = 0x0034
cipher_TLS_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0035
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA uint16 = 0x0036
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0037
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA uint16 = 0x0038
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0039
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA uint16 = 0x003A
cipher_TLS_RSA_WITH_NULL_SHA256 uint16 = 0x003B
cipher_TLS_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x003C
cipher_TLS_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x003D
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA256 uint16 = 0x003E
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x003F
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 uint16 = 0x0040
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0041
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0042
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0043
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0044
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0045
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA uint16 = 0x0046
// Reserved uint16 = 0x0047-4F
// Reserved uint16 = 0x0050-58
// Reserved uint16 = 0x0059-5C
// Unassigned uint16 = 0x005D-5F
// Reserved uint16 = 0x0060-66
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x0067
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA256 uint16 = 0x0068
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x0069
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 uint16 = 0x006A
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x006B
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA256 uint16 = 0x006C
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA256 uint16 = 0x006D
// Unassigned uint16 = 0x006E-83
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0084
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0085
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0086
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0087
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0088
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA uint16 = 0x0089
cipher_TLS_PSK_WITH_RC4_128_SHA uint16 = 0x008A
cipher_TLS_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x008B
cipher_TLS_PSK_WITH_AES_128_CBC_SHA uint16 = 0x008C
cipher_TLS_PSK_WITH_AES_256_CBC_SHA uint16 = 0x008D
cipher_TLS_DHE_PSK_WITH_RC4_128_SHA uint16 = 0x008E
cipher_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x008F
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA uint16 = 0x0090
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA uint16 = 0x0091
cipher_TLS_RSA_PSK_WITH_RC4_128_SHA uint16 = 0x0092
cipher_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0x0093
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA uint16 = 0x0094
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA uint16 = 0x0095
cipher_TLS_RSA_WITH_SEED_CBC_SHA uint16 = 0x0096
cipher_TLS_DH_DSS_WITH_SEED_CBC_SHA uint16 = 0x0097
cipher_TLS_DH_RSA_WITH_SEED_CBC_SHA uint16 = 0x0098
cipher_TLS_DHE_DSS_WITH_SEED_CBC_SHA uint16 = 0x0099
cipher_TLS_DHE_RSA_WITH_SEED_CBC_SHA uint16 = 0x009A
cipher_TLS_DH_anon_WITH_SEED_CBC_SHA uint16 = 0x009B
cipher_TLS_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x009C
cipher_TLS_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x009D
cipher_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x009E
cipher_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x009F
cipher_TLS_DH_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x00A0
cipher_TLS_DH_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x00A1
cipher_TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 uint16 = 0x00A2
cipher_TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 uint16 = 0x00A3
cipher_TLS_DH_DSS_WITH_AES_128_GCM_SHA256 uint16 = 0x00A4
cipher_TLS_DH_DSS_WITH_AES_256_GCM_SHA384 uint16 = 0x00A5
cipher_TLS_DH_anon_WITH_AES_128_GCM_SHA256 uint16 = 0x00A6
cipher_TLS_DH_anon_WITH_AES_256_GCM_SHA384 uint16 = 0x00A7
cipher_TLS_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00A8
cipher_TLS_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00A9
cipher_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00AA
cipher_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00AB
cipher_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 uint16 = 0x00AC
cipher_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 uint16 = 0x00AD
cipher_TLS_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00AE
cipher_TLS_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00AF
cipher_TLS_PSK_WITH_NULL_SHA256 uint16 = 0x00B0
cipher_TLS_PSK_WITH_NULL_SHA384 uint16 = 0x00B1
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00B2
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00B3
cipher_TLS_DHE_PSK_WITH_NULL_SHA256 uint16 = 0x00B4
cipher_TLS_DHE_PSK_WITH_NULL_SHA384 uint16 = 0x00B5
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0x00B6
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0x00B7
cipher_TLS_RSA_PSK_WITH_NULL_SHA256 uint16 = 0x00B8
cipher_TLS_RSA_PSK_WITH_NULL_SHA384 uint16 = 0x00B9
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BA
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BB
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BC
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BD
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BE
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0x00BF
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C0
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C1
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C2
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C3
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C4
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 uint16 = 0x00C5
// Unassigned uint16 = 0x00C6-FE
cipher_TLS_EMPTY_RENEGOTIATION_INFO_SCSV uint16 = 0x00FF
// Unassigned uint16 = 0x01-55,*
cipher_TLS_FALLBACK_SCSV uint16 = 0x5600
// Unassigned uint16 = 0x5601 - 0xC000
cipher_TLS_ECDH_ECDSA_WITH_NULL_SHA uint16 = 0xC001
cipher_TLS_ECDH_ECDSA_WITH_RC4_128_SHA uint16 = 0xC002
cipher_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC003
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA uint16 = 0xC004
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA uint16 = 0xC005
cipher_TLS_ECDHE_ECDSA_WITH_NULL_SHA uint16 = 0xC006
cipher_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA uint16 = 0xC007
cipher_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC008
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA uint16 = 0xC009
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA uint16 = 0xC00A
cipher_TLS_ECDH_RSA_WITH_NULL_SHA uint16 = 0xC00B
cipher_TLS_ECDH_RSA_WITH_RC4_128_SHA uint16 = 0xC00C
cipher_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC00D
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC00E
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC00F
cipher_TLS_ECDHE_RSA_WITH_NULL_SHA uint16 = 0xC010
cipher_TLS_ECDHE_RSA_WITH_RC4_128_SHA uint16 = 0xC011
cipher_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC012
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC013
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC014
cipher_TLS_ECDH_anon_WITH_NULL_SHA uint16 = 0xC015
cipher_TLS_ECDH_anon_WITH_RC4_128_SHA uint16 = 0xC016
cipher_TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA uint16 = 0xC017
cipher_TLS_ECDH_anon_WITH_AES_128_CBC_SHA uint16 = 0xC018
cipher_TLS_ECDH_anon_WITH_AES_256_CBC_SHA uint16 = 0xC019
cipher_TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01A
cipher_TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01B
cipher_TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA uint16 = 0xC01C
cipher_TLS_SRP_SHA_WITH_AES_128_CBC_SHA uint16 = 0xC01D
cipher_TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA uint16 = 0xC01E
cipher_TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA uint16 = 0xC01F
cipher_TLS_SRP_SHA_WITH_AES_256_CBC_SHA uint16 = 0xC020
cipher_TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA uint16 = 0xC021
cipher_TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA uint16 = 0xC022
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC023
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC024
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC025
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC026
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC027
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC028
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0xC029
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 uint16 = 0xC02A
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02B
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC02C
cipher_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02D
cipher_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC02E
cipher_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC02F
cipher_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC030
cipher_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0xC031
cipher_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0xC032
cipher_TLS_ECDHE_PSK_WITH_RC4_128_SHA uint16 = 0xC033
cipher_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA uint16 = 0xC034
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA uint16 = 0xC035
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA uint16 = 0xC036
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 uint16 = 0xC037
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 uint16 = 0xC038
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA uint16 = 0xC039
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA256 uint16 = 0xC03A
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA384 uint16 = 0xC03B
cipher_TLS_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC03C
cipher_TLS_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC03D
cipher_TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC03E
cipher_TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC03F
cipher_TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC040
cipher_TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC041
cipher_TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC042
cipher_TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC043
cipher_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC044
cipher_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC045
cipher_TLS_DH_anon_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC046
cipher_TLS_DH_anon_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC047
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC048
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC049
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04A
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04B
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04C
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04D
cipher_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC04E
cipher_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC04F
cipher_TLS_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC050
cipher_TLS_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC051
cipher_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC052
cipher_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC053
cipher_TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC054
cipher_TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC055
cipher_TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC056
cipher_TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC057
cipher_TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC058
cipher_TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC059
cipher_TLS_DH_anon_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05A
cipher_TLS_DH_anon_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05B
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05C
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05D
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC05E
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC05F
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC060
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC061
cipher_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC062
cipher_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC063
cipher_TLS_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC064
cipher_TLS_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC065
cipher_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC066
cipher_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC067
cipher_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC068
cipher_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC069
cipher_TLS_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06A
cipher_TLS_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06B
cipher_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06C
cipher_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06D
cipher_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 uint16 = 0xC06E
cipher_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 uint16 = 0xC06F
cipher_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 uint16 = 0xC070
cipher_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 uint16 = 0xC071
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC072
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC073
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC074
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC075
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC076
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC077
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC078
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC079
cipher_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07A
cipher_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07B
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07C
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07D
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC07E
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC07F
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC080
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC081
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC082
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC083
cipher_TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC084
cipher_TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC085
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC086
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC087
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC088
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC089
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08A
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08B
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08C
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08D
cipher_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC08E
cipher_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC08F
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC090
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC091
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 uint16 = 0xC092
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 uint16 = 0xC093
cipher_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC094
cipher_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC095
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC096
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC097
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC098
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC099
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 uint16 = 0xC09A
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 uint16 = 0xC09B
cipher_TLS_RSA_WITH_AES_128_CCM uint16 = 0xC09C
cipher_TLS_RSA_WITH_AES_256_CCM uint16 = 0xC09D
cipher_TLS_DHE_RSA_WITH_AES_128_CCM uint16 = 0xC09E
cipher_TLS_DHE_RSA_WITH_AES_256_CCM uint16 = 0xC09F
cipher_TLS_RSA_WITH_AES_128_CCM_8 uint16 = 0xC0A0
cipher_TLS_RSA_WITH_AES_256_CCM_8 uint16 = 0xC0A1
cipher_TLS_DHE_RSA_WITH_AES_128_CCM_8 uint16 = 0xC0A2
cipher_TLS_DHE_RSA_WITH_AES_256_CCM_8 uint16 = 0xC0A3
cipher_TLS_PSK_WITH_AES_128_CCM uint16 = 0xC0A4
cipher_TLS_PSK_WITH_AES_256_CCM uint16 = 0xC0A5
cipher_TLS_DHE_PSK_WITH_AES_128_CCM uint16 = 0xC0A6
cipher_TLS_DHE_PSK_WITH_AES_256_CCM uint16 = 0xC0A7
cipher_TLS_PSK_WITH_AES_128_CCM_8 uint16 = 0xC0A8
cipher_TLS_PSK_WITH_AES_256_CCM_8 uint16 = 0xC0A9
cipher_TLS_PSK_DHE_WITH_AES_128_CCM_8 uint16 = 0xC0AA
cipher_TLS_PSK_DHE_WITH_AES_256_CCM_8 uint16 = 0xC0AB
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CCM uint16 = 0xC0AC
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CCM uint16 = 0xC0AD
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 uint16 = 0xC0AE
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 uint16 = 0xC0AF
// Unassigned uint16 = 0xC0B0-FF
// Unassigned uint16 = 0xC1-CB,*
// Unassigned uint16 = 0xCC00-A7
cipher_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCA8
cipher_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCA9
cipher_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAA
cipher_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAB
cipher_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAC
cipher_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAD
cipher_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xCCAE
)
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
// References:
// https://tools.ietf.org/html/rfc7540#appendix-A
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
func isBadCipher(cipher uint16) bool {
switch cipher {
case cipher_TLS_NULL_WITH_NULL_NULL,
cipher_TLS_RSA_WITH_NULL_MD5,
cipher_TLS_RSA_WITH_NULL_SHA,
cipher_TLS_RSA_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_RSA_WITH_RC4_128_MD5,
cipher_TLS_RSA_WITH_RC4_128_SHA,
cipher_TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5,
cipher_TLS_RSA_WITH_IDEA_CBC_SHA,
cipher_TLS_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_RSA_WITH_DES_CBC_SHA,
cipher_TLS_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_DSS_WITH_DES_CBC_SHA,
cipher_TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_RSA_WITH_DES_CBC_SHA,
cipher_TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_DES_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_DES_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DH_anon_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_DH_anon_WITH_RC4_128_MD5,
cipher_TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA,
cipher_TLS_DH_anon_WITH_DES_CBC_SHA,
cipher_TLS_DH_anon_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_KRB5_WITH_DES_CBC_SHA,
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_KRB5_WITH_RC4_128_SHA,
cipher_TLS_KRB5_WITH_IDEA_CBC_SHA,
cipher_TLS_KRB5_WITH_DES_CBC_MD5,
cipher_TLS_KRB5_WITH_3DES_EDE_CBC_MD5,
cipher_TLS_KRB5_WITH_RC4_128_MD5,
cipher_TLS_KRB5_WITH_IDEA_CBC_MD5,
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_SHA,
cipher_TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5,
cipher_TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5,
cipher_TLS_KRB5_EXPORT_WITH_RC4_40_MD5,
cipher_TLS_PSK_WITH_NULL_SHA,
cipher_TLS_DHE_PSK_WITH_NULL_SHA,
cipher_TLS_RSA_PSK_WITH_NULL_SHA,
cipher_TLS_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA,
cipher_TLS_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_WITH_NULL_SHA256,
cipher_TLS_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
cipher_TLS_DH_anon_WITH_AES_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_AES_256_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA,
cipher_TLS_PSK_WITH_RC4_128_SHA,
cipher_TLS_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_RC4_128_SHA,
cipher_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_RC4_128_SHA,
cipher_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DH_DSS_WITH_SEED_CBC_SHA,
cipher_TLS_DH_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DHE_DSS_WITH_SEED_CBC_SHA,
cipher_TLS_DHE_RSA_WITH_SEED_CBC_SHA,
cipher_TLS_DH_anon_WITH_SEED_CBC_SHA,
cipher_TLS_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_AES_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_AES_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_AES_256_GCM_SHA384,
cipher_TLS_PSK_WITH_AES_128_GCM_SHA256,
cipher_TLS_PSK_WITH_AES_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
cipher_TLS_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_PSK_WITH_NULL_SHA256,
cipher_TLS_PSK_WITH_NULL_SHA384,
cipher_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_NULL_SHA256,
cipher_TLS_DHE_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_NULL_SHA256,
cipher_TLS_RSA_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256,
cipher_TLS_EMPTY_RENEGOTIATION_INFO_SCSV,
cipher_TLS_ECDH_ECDSA_WITH_NULL_SHA,
cipher_TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
cipher_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_NULL_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_NULL_SHA,
cipher_TLS_ECDH_RSA_WITH_RC4_128_SHA,
cipher_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_NULL_SHA,
cipher_TLS_ECDHE_RSA_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_NULL_SHA,
cipher_TLS_ECDH_anon_WITH_RC4_128_SHA,
cipher_TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDH_anon_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA,
cipher_TLS_SRP_SHA_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA,
cipher_TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
cipher_TLS_ECDHE_PSK_WITH_RC4_128_SHA,
cipher_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA,
cipher_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA256,
cipher_TLS_ECDHE_PSK_WITH_NULL_SHA384,
cipher_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DH_anon_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DH_anon_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
cipher_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384,
cipher_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
cipher_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
cipher_TLS_RSA_WITH_AES_128_CCM,
cipher_TLS_RSA_WITH_AES_256_CCM,
cipher_TLS_RSA_WITH_AES_128_CCM_8,
cipher_TLS_RSA_WITH_AES_256_CCM_8,
cipher_TLS_PSK_WITH_AES_128_CCM,
cipher_TLS_PSK_WITH_AES_256_CCM,
cipher_TLS_PSK_WITH_AES_128_CCM_8,
cipher_TLS_PSK_WITH_AES_256_CCM_8:
return true
default:
return false
}
}

2
vendor/golang.org/x/net/http2/configure_transport.go generated vendored
View File

@@ -56,7 +56,7 @@ func configureTransport(t1 *http.Transport) (*Transport, error) {
}
// registerHTTPSProtocol calls Transport.RegisterProtocol but
// convering panics into errors.
// converting panics into errors.
func registerHTTPSProtocol(t *http.Transport, rt http.RoundTripper) (err error) {
defer func() {
if e := recover(); e != nil {

146
vendor/golang.org/x/net/http2/databuffer.go generated vendored Normal file
View File

@@ -0,0 +1,146 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
"fmt"
"sync"
)
// Buffer chunks are allocated from a pool to reduce pressure on GC.
// The maximum wasted space per dataBuffer is 2x the largest size class,
// which happens when the dataBuffer has multiple chunks and there is
// one unread byte in both the first and last chunks. We use a few size
// classes to minimize overheads for servers that typically receive very
// small request bodies.
//
// TODO: Benchmark to determine if the pools are necessary. The GC may have
// improved enough that we can instead allocate chunks like this:
// make([]byte, max(16<<10, expectedBytesRemaining))
var (
dataChunkSizeClasses = []int{
1 << 10,
2 << 10,
4 << 10,
8 << 10,
16 << 10,
}
dataChunkPools = [...]sync.Pool{
{New: func() interface{} { return make([]byte, 1<<10) }},
{New: func() interface{} { return make([]byte, 2<<10) }},
{New: func() interface{} { return make([]byte, 4<<10) }},
{New: func() interface{} { return make([]byte, 8<<10) }},
{New: func() interface{} { return make([]byte, 16<<10) }},
}
)
func getDataBufferChunk(size int64) []byte {
i := 0
for ; i < len(dataChunkSizeClasses)-1; i++ {
if size <= int64(dataChunkSizeClasses[i]) {
break
}
}
return dataChunkPools[i].Get().([]byte)
}
func putDataBufferChunk(p []byte) {
for i, n := range dataChunkSizeClasses {
if len(p) == n {
dataChunkPools[i].Put(p)
return
}
}
panic(fmt.Sprintf("unexpected buffer len=%v", len(p)))
}
// dataBuffer is an io.ReadWriter backed by a list of data chunks.
// Each dataBuffer is used to read DATA frames on a single stream.
// The buffer is divided into chunks so the server can limit the
// total memory used by a single connection without limiting the
// request body size on any single stream.
type dataBuffer struct {
chunks [][]byte
r int // next byte to read is chunks[0][r]
w int // next byte to write is chunks[len(chunks)-1][w]
size int // total buffered bytes
expected int64 // we expect at least this many bytes in future Write calls (ignored if <= 0)
}
var errReadEmpty = errors.New("read from empty dataBuffer")
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *dataBuffer) Read(p []byte) (int, error) {
if b.size == 0 {
return 0, errReadEmpty
}
var ntotal int
for len(p) > 0 && b.size > 0 {
readFrom := b.bytesFromFirstChunk()
n := copy(p, readFrom)
p = p[n:]
ntotal += n
b.r += n
b.size -= n
// If the first chunk has been consumed, advance to the next chunk.
if b.r == len(b.chunks[0]) {
putDataBufferChunk(b.chunks[0])
end := len(b.chunks) - 1
copy(b.chunks[:end], b.chunks[1:])
b.chunks[end] = nil
b.chunks = b.chunks[:end]
b.r = 0
}
}
return ntotal, nil
}
func (b *dataBuffer) bytesFromFirstChunk() []byte {
if len(b.chunks) == 1 {
return b.chunks[0][b.r:b.w]
}
return b.chunks[0][b.r:]
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *dataBuffer) Len() int {
return b.size
}
// Write appends p to the buffer.
func (b *dataBuffer) Write(p []byte) (int, error) {
ntotal := len(p)
for len(p) > 0 {
// If the last chunk is empty, allocate a new chunk. Try to allocate
// enough to fully copy p plus any additional bytes we expect to
// receive. However, this may allocate less than len(p).
want := int64(len(p))
if b.expected > want {
want = b.expected
}
chunk := b.lastChunkOrAlloc(want)
n := copy(chunk[b.w:], p)
p = p[n:]
b.w += n
b.size += n
b.expected -= int64(n)
}
return ntotal, nil
}
func (b *dataBuffer) lastChunkOrAlloc(want int64) []byte {
if len(b.chunks) != 0 {
last := b.chunks[len(b.chunks)-1]
if b.w < len(last) {
return last
}
}
chunk := getDataBufferChunk(want)
b.chunks = append(b.chunks, chunk)
b.w = 0
return chunk
}

13
vendor/golang.org/x/net/http2/errors.go generated vendored
View File

@@ -87,13 +87,16 @@ type goAwayFlowError struct{}
func (goAwayFlowError) Error() string { return "connection exceeded flow control window size" }
// connErrorReason wraps a ConnectionError with an informative error about why it occurs.
// connError represents an HTTP/2 ConnectionError error code, along
// with a string (for debugging) explaining why.
//
// Errors of this type are only returned by the frame parser functions
// and converted into ConnectionError(ErrCodeProtocol).
// and converted into ConnectionError(Code), after stashing away
// the Reason into the Framer's errDetail field, accessible via
// the (*Framer).ErrorDetail method.
type connError struct {
Code ErrCode
Reason string
Code ErrCode // the ConnectionError error code
Reason string // additional reason
}
func (e connError) Error() string {

60
vendor/golang.org/x/net/http2/fixed_buffer.go generated vendored
View File

@@ -1,60 +0,0 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"errors"
)
// fixedBuffer is an io.ReadWriter backed by a fixed size buffer.
// It never allocates, but moves old data as new data is written.
type fixedBuffer struct {
buf []byte
r, w int
}
var (
errReadEmpty = errors.New("read from empty fixedBuffer")
errWriteFull = errors.New("write on full fixedBuffer")
)
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *fixedBuffer) Read(p []byte) (n int, err error) {
if b.r == b.w {
return 0, errReadEmpty
}
n = copy(p, b.buf[b.r:b.w])
b.r += n
if b.r == b.w {
b.r = 0
b.w = 0
}
return n, nil
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *fixedBuffer) Len() int {
return b.w - b.r
}
// Write copies bytes from p into the buffer.
// It is an error to write more data than the buffer can hold.
func (b *fixedBuffer) Write(p []byte) (n int, err error) {
// Slide existing data to beginning.
if b.r > 0 && len(p) > len(b.buf)-b.w {
copy(b.buf, b.buf[b.r:b.w])
b.w -= b.r
b.r = 0
}
// Write new data.
n = copy(b.buf[b.w:], p)
b.w += n
if n < len(p) {
err = errWriteFull
}
return n, err
}

55
vendor/golang.org/x/net/http2/frame.go generated vendored
View File

@@ -122,7 +122,7 @@ var flagName = map[FrameType]map[Flags]string{
// a frameParser parses a frame given its FrameHeader and payload
// bytes. The length of payload will always equal fh.Length (which
// might be 0).
type frameParser func(fh FrameHeader, payload []byte) (Frame, error)
type frameParser func(fc *frameCache, fh FrameHeader, payload []byte) (Frame, error)
var frameParsers = map[FrameType]frameParser{
FrameData: parseDataFrame,
@@ -323,6 +323,8 @@ type Framer struct {
debugFramerBuf *bytes.Buffer
debugReadLoggerf func(string, ...interface{})
debugWriteLoggerf func(string, ...interface{})
frameCache *frameCache // nil if frames aren't reused (default)
}
func (fr *Framer) maxHeaderListSize() uint32 {
@@ -398,6 +400,27 @@ const (
maxFrameSize = 1<<24 - 1
)
// SetReuseFrames allows the Framer to reuse Frames.
// If called on a Framer, Frames returned by calls to ReadFrame are only
// valid until the next call to ReadFrame.
func (fr *Framer) SetReuseFrames() {
if fr.frameCache != nil {
return
}
fr.frameCache = &frameCache{}
}
type frameCache struct {
dataFrame DataFrame
}
func (fc *frameCache) getDataFrame() *DataFrame {
if fc == nil {
return &DataFrame{}
}
return &fc.dataFrame
}
// NewFramer returns a Framer that writes frames to w and reads them from r.
func NewFramer(w io.Writer, r io.Reader) *Framer {
fr := &Framer{
@@ -477,7 +500,7 @@ func (fr *Framer) ReadFrame() (Frame, error) {
if _, err := io.ReadFull(fr.r, payload); err != nil {
return nil, err
}
f, err := typeFrameParser(fh.Type)(fh, payload)
f, err := typeFrameParser(fh.Type)(fr.frameCache, fh, payload)
if err != nil {
if ce, ok := err.(connError); ok {
return nil, fr.connError(ce.Code, ce.Reason)
@@ -565,7 +588,7 @@ func (f *DataFrame) Data() []byte {
return f.data
}
func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parseDataFrame(fc *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if fh.StreamID == 0 {
// DATA frames MUST be associated with a stream. If a
// DATA frame is received whose stream identifier
@@ -574,9 +597,9 @@ func parseDataFrame(fh FrameHeader, payload []byte) (Frame, error) {
// PROTOCOL_ERROR.
return nil, connError{ErrCodeProtocol, "DATA frame with stream ID 0"}
}
f := &DataFrame{
FrameHeader: fh,
}
f := fc.getDataFrame()
f.FrameHeader = fh
var padSize byte
if fh.Flags.Has(FlagDataPadded) {
var err error
@@ -672,7 +695,7 @@ type SettingsFrame struct {
p []byte
}
func parseSettingsFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseSettingsFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.Flags.Has(FlagSettingsAck) && fh.Length > 0 {
// When this (ACK 0x1) bit is set, the payload of the
// SETTINGS frame MUST be empty. Receipt of a
@@ -774,7 +797,7 @@ type PingFrame struct {
func (f *PingFrame) IsAck() bool { return f.Flags.Has(FlagPingAck) }
func parsePingFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parsePingFrame(_ *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if len(payload) != 8 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@@ -814,7 +837,7 @@ func (f *GoAwayFrame) DebugData() []byte {
return f.debugData
}
func parseGoAwayFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseGoAwayFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.StreamID != 0 {
return nil, ConnectionError(ErrCodeProtocol)
}
@@ -854,7 +877,7 @@ func (f *UnknownFrame) Payload() []byte {
return f.p
}
func parseUnknownFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseUnknownFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
return &UnknownFrame{fh, p}, nil
}
@@ -865,7 +888,7 @@ type WindowUpdateFrame struct {
Increment uint32 // never read with high bit set
}
func parseWindowUpdateFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseWindowUpdateFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if len(p) != 4 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@@ -930,7 +953,7 @@ func (f *HeadersFrame) HasPriority() bool {
return f.FrameHeader.Flags.Has(FlagHeadersPriority)
}
func parseHeadersFrame(fh FrameHeader, p []byte) (_ Frame, err error) {
func parseHeadersFrame(_ *frameCache, fh FrameHeader, p []byte) (_ Frame, err error) {
hf := &HeadersFrame{
FrameHeader: fh,
}
@@ -1067,7 +1090,7 @@ func (p PriorityParam) IsZero() bool {
return p == PriorityParam{}
}
func parsePriorityFrame(fh FrameHeader, payload []byte) (Frame, error) {
func parsePriorityFrame(_ *frameCache, fh FrameHeader, payload []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, connError{ErrCodeProtocol, "PRIORITY frame with stream ID 0"}
}
@@ -1114,7 +1137,7 @@ type RSTStreamFrame struct {
ErrCode ErrCode
}
func parseRSTStreamFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseRSTStreamFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if len(p) != 4 {
return nil, ConnectionError(ErrCodeFrameSize)
}
@@ -1144,7 +1167,7 @@ type ContinuationFrame struct {
headerFragBuf []byte
}
func parseContinuationFrame(fh FrameHeader, p []byte) (Frame, error) {
func parseContinuationFrame(_ *frameCache, fh FrameHeader, p []byte) (Frame, error) {
if fh.StreamID == 0 {
return nil, connError{ErrCodeProtocol, "CONTINUATION frame with stream ID 0"}
}
@@ -1194,7 +1217,7 @@ func (f *PushPromiseFrame) HeadersEnded() bool {
return f.FrameHeader.Flags.Has(FlagPushPromiseEndHeaders)
}
func parsePushPromise(fh FrameHeader, p []byte) (_ Frame, err error) {
func parsePushPromise(_ *frameCache, fh FrameHeader, p []byte) (_ Frame, err error) {
pp := &PushPromiseFrame{
FrameHeader: fh,
}

27
vendor/golang.org/x/net/http2/go16.go generated vendored
View File

@@ -7,7 +7,6 @@
package http2
import (
"crypto/tls"
"net/http"
"time"
)
@@ -15,29 +14,3 @@ import (
func transportExpectContinueTimeout(t1 *http.Transport) time.Duration {
return t1.ExpectContinueTimeout
}
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
func isBadCipher(cipher uint16) bool {
switch cipher {
case tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
return true
default:
return false
}
}

8
vendor/golang.org/x/net/http2/go18.go generated vendored
View File

@@ -12,7 +12,11 @@ import (
"net/http"
)
func cloneTLSConfig(c *tls.Config) *tls.Config { return c.Clone() }
func cloneTLSConfig(c *tls.Config) *tls.Config {
c2 := c.Clone()
c2.GetClientCertificate = c.GetClientCertificate // golang.org/issue/19264
return c2
}
var _ http.Pusher = (*responseWriter)(nil)
@@ -48,3 +52,5 @@ func reqGetBody(req *http.Request) func() (io.ReadCloser, error) {
func reqBodyIsNoBody(body io.ReadCloser) bool {
return body == http.NoBody
}
func go18httpNoBody() io.ReadCloser { return http.NoBody } // for tests only

16
vendor/golang.org/x/net/http2/go19.go generated vendored Normal file
View File

@@ -0,0 +1,16 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.9
package http2
import (
"net/http"
)
func configureServer19(s *http.Server, conf *Server) error {
s.RegisterOnShutdown(conf.state.startGracefulShutdown)
return nil
}

8
vendor/golang.org/x/net/http2/http2.go generated vendored
View File

@@ -376,12 +376,16 @@ func (s *sorter) SortStrings(ss []string) {
// validPseudoPath reports whether v is a valid :path pseudo-header
// value. It must be either:
//
// *) a non-empty string starting with '/', but not with with "//",
// *) a non-empty string starting with '/'
// *) the string '*', for OPTIONS requests.
//
// For now this is only used a quick check for deciding when to clean
// up Opaque URLs before sending requests from the Transport.
// See golang.org/issue/16847
//
// We used to enforce that the path also didn't start with "//", but
// Google's GFE accepts such paths and Chrome sends them, so ignore
// that part of the spec. See golang.org/issue/19103.
func validPseudoPath(v string) bool {
return (len(v) > 0 && v[0] == '/' && (len(v) == 1 || v[1] != '/')) || v == "*"
return (len(v) > 0 && v[0] == '/') || v == "*"
}

25
vendor/golang.org/x/net/http2/not_go16.go generated vendored
View File

@@ -7,7 +7,6 @@
package http2
import (
"crypto/tls"
"net/http"
"time"
)
@@ -20,27 +19,3 @@ func transportExpectContinueTimeout(t1 *http.Transport) time.Duration {
return 0
}
// isBadCipher reports whether the cipher is blacklisted by the HTTP/2 spec.
func isBadCipher(cipher uint16) bool {
switch cipher {
case tls.TLS_RSA_WITH_RC4_128_SHA,
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA,
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
// Reject cipher suites from Appendix A.
// "This list includes those cipher suites that do not
// offer an ephemeral key exchange and those that are
// based on the TLS null, stream or block cipher type"
return true
default:
return false
}
}

2
vendor/golang.org/x/net/http2/not_go18.go generated vendored
View File

@@ -25,3 +25,5 @@ func reqGetBody(req *http.Request) func() (io.ReadCloser, error) {
}
func reqBodyIsNoBody(io.ReadCloser) bool { return false }
func go18httpNoBody() io.ReadCloser { return nil } // for tests only

16
vendor/golang.org/x/net/http2/not_go19.go generated vendored Normal file
View File

@@ -0,0 +1,16 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.9
package http2
import (
"net/http"
)
func configureServer19(s *http.Server, conf *Server) error {
// not supported prior to go1.9
return nil
}

16
vendor/golang.org/x/net/http2/pipe.go generated vendored
View File

@@ -15,8 +15,8 @@ import (
// underlying buffer is an interface. (io.Pipe is always unbuffered)
type pipe struct {
mu sync.Mutex
c sync.Cond // c.L lazily initialized to &p.mu
b pipeBuffer
c sync.Cond // c.L lazily initialized to &p.mu
b pipeBuffer // nil when done reading
err error // read error once empty. non-nil means closed.
breakErr error // immediate read error (caller doesn't see rest of b)
donec chan struct{} // closed on error
@@ -32,6 +32,9 @@ type pipeBuffer interface {
func (p *pipe) Len() int {
p.mu.Lock()
defer p.mu.Unlock()
if p.b == nil {
return 0
}
return p.b.Len()
}
@@ -47,7 +50,7 @@ func (p *pipe) Read(d []byte) (n int, err error) {
if p.breakErr != nil {
return 0, p.breakErr
}
if p.b.Len() > 0 {
if p.b != nil && p.b.Len() > 0 {
return p.b.Read(d)
}
if p.err != nil {
@@ -55,6 +58,7 @@ func (p *pipe) Read(d []byte) (n int, err error) {
p.readFn() // e.g. copy trailers
p.readFn = nil // not sticky like p.err
}
p.b = nil
return 0, p.err
}
p.c.Wait()
@@ -75,6 +79,9 @@ func (p *pipe) Write(d []byte) (n int, err error) {
if p.err != nil {
return 0, errClosedPipeWrite
}
if p.breakErr != nil {
return len(d), nil // discard when there is no reader
}
return p.b.Write(d)
}
@@ -109,6 +116,9 @@ func (p *pipe) closeWithError(dst *error, err error, fn func()) {
return
}
p.readFn = fn
if dst == &p.breakErr {
p.b = nil
}
*dst = err
p.closeDoneLocked()
}

432
vendor/golang.org/x/net/http2/server.go generated vendored
View File

@@ -110,9 +110,41 @@ type Server struct {
// activity for the purposes of IdleTimeout.
IdleTimeout time.Duration
// MaxUploadBufferPerConnection is the size of the initial flow
// control window for each connections. The HTTP/2 spec does not
// allow this to be smaller than 65535 or larger than 2^32-1.
// If the value is outside this range, a default value will be
// used instead.
MaxUploadBufferPerConnection int32
// MaxUploadBufferPerStream is the size of the initial flow control
// window for each stream. The HTTP/2 spec does not allow this to
// be larger than 2^32-1. If the value is zero or larger than the
// maximum, a default value will be used instead.
MaxUploadBufferPerStream int32
// NewWriteScheduler constructs a write scheduler for a connection.
// If nil, a default scheduler is chosen.
NewWriteScheduler func() WriteScheduler
// Internal state. This is a pointer (rather than embedded directly)
// so that we don't embed a Mutex in this struct, which will make the
// struct non-copyable, which might break some callers.
state *serverInternalState
}
func (s *Server) initialConnRecvWindowSize() int32 {
if s.MaxUploadBufferPerConnection > initialWindowSize {
return s.MaxUploadBufferPerConnection
}
return 1 << 20
}
func (s *Server) initialStreamRecvWindowSize() int32 {
if s.MaxUploadBufferPerStream > 0 {
return s.MaxUploadBufferPerStream
}
return 1 << 20
}
func (s *Server) maxReadFrameSize() uint32 {
@@ -129,6 +161,40 @@ func (s *Server) maxConcurrentStreams() uint32 {
return defaultMaxStreams
}
type serverInternalState struct {
mu sync.Mutex
activeConns map[*serverConn]struct{}
}
func (s *serverInternalState) registerConn(sc *serverConn) {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
s.activeConns[sc] = struct{}{}
s.mu.Unlock()
}
func (s *serverInternalState) unregisterConn(sc *serverConn) {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
delete(s.activeConns, sc)
s.mu.Unlock()
}
func (s *serverInternalState) startGracefulShutdown() {
if s == nil {
return // if the Server was used without calling ConfigureServer
}
s.mu.Lock()
for sc := range s.activeConns {
sc.startGracefulShutdown()
}
s.mu.Unlock()
}
// ConfigureServer adds HTTP/2 support to a net/http Server.
//
// The configuration conf may be nil.
@@ -141,9 +207,13 @@ func ConfigureServer(s *http.Server, conf *Server) error {
if conf == nil {
conf = new(Server)
}
conf.state = &serverInternalState{activeConns: make(map[*serverConn]struct{})}
if err := configureServer18(s, conf); err != nil {
return err
}
if err := configureServer19(s, conf); err != nil {
return err
}
if s.TLSConfig == nil {
s.TLSConfig = new(tls.Config)
@@ -255,35 +325,37 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
defer cancel()
sc := &serverConn{
srv: s,
hs: opts.baseConfig(),
conn: c,
baseCtx: baseCtx,
remoteAddrStr: c.RemoteAddr().String(),
bw: newBufferedWriter(c),
handler: opts.handler(),
streams: make(map[uint32]*stream),
readFrameCh: make(chan readFrameResult),
wantWriteFrameCh: make(chan FrameWriteRequest, 8),
wantStartPushCh: make(chan startPushRequest, 8),
wroteFrameCh: make(chan frameWriteResult, 1), // buffered; one send in writeFrameAsync
bodyReadCh: make(chan bodyReadMsg), // buffering doesn't matter either way
doneServing: make(chan struct{}),
clientMaxStreams: math.MaxUint32, // Section 6.5.2: "Initially, there is no limit to this value"
advMaxStreams: s.maxConcurrentStreams(),
initialWindowSize: initialWindowSize,
maxFrameSize: initialMaxFrameSize,
headerTableSize: initialHeaderTableSize,
serveG: newGoroutineLock(),
pushEnabled: true,
srv: s,
hs: opts.baseConfig(),
conn: c,
baseCtx: baseCtx,
remoteAddrStr: c.RemoteAddr().String(),
bw: newBufferedWriter(c),
handler: opts.handler(),
streams: make(map[uint32]*stream),
readFrameCh: make(chan readFrameResult),
wantWriteFrameCh: make(chan FrameWriteRequest, 8),
serveMsgCh: make(chan interface{}, 8),
wroteFrameCh: make(chan frameWriteResult, 1), // buffered; one send in writeFrameAsync
bodyReadCh: make(chan bodyReadMsg), // buffering doesn't matter either way
doneServing: make(chan struct{}),
clientMaxStreams: math.MaxUint32, // Section 6.5.2: "Initially, there is no limit to this value"
advMaxStreams: s.maxConcurrentStreams(),
initialStreamSendWindowSize: initialWindowSize,
maxFrameSize: initialMaxFrameSize,
headerTableSize: initialHeaderTableSize,
serveG: newGoroutineLock(),
pushEnabled: true,
}
s.state.registerConn(sc)
defer s.state.unregisterConn(sc)
// The net/http package sets the write deadline from the
// http.Server.WriteTimeout during the TLS handshake, but then
// passes the connection off to us with the deadline already
// set. Disarm it here so that it is not applied to additional
// streams opened on this connection.
// TODO: implement WriteTimeout fully. See Issue 18437.
// passes the connection off to us with the deadline already set.
// Write deadlines are set per stream in serverConn.newStream.
// Disarm the net.Conn write deadline here.
if sc.hs.WriteTimeout != 0 {
sc.conn.SetWriteDeadline(time.Time{})
}
@@ -294,6 +366,9 @@ func (s *Server) ServeConn(c net.Conn, opts *ServeConnOpts) {
sc.writeSched = NewRandomWriteScheduler()
}
// These start at the RFC-specified defaults. If there is a higher
// configured value for inflow, that will be updated when we send a
// WINDOW_UPDATE shortly after sending SETTINGS.
sc.flow.add(initialWindowSize)
sc.inflow.add(initialWindowSize)
sc.hpackEncoder = hpack.NewEncoder(&sc.headerWriteBuf)
@@ -376,10 +451,9 @@ type serverConn struct {
doneServing chan struct{} // closed when serverConn.serve ends
readFrameCh chan readFrameResult // written by serverConn.readFrames
wantWriteFrameCh chan FrameWriteRequest // from handlers -> serve
wantStartPushCh chan startPushRequest // from handlers -> serve
wroteFrameCh chan frameWriteResult // from writeFrameAsync -> serve, tickles more frame writes
bodyReadCh chan bodyReadMsg // from handlers -> serve
testHookCh chan func(int) // code to run on the serve loop
serveMsgCh chan interface{} // misc messages & code to send to / run on the serve loop
flow flow // conn-wide (not stream-specific) outbound flow control
inflow flow // conn-wide inbound flow control
tlsState *tls.ConnectionState // shared by all handlers, like net/http
@@ -387,38 +461,39 @@ type serverConn struct {
writeSched WriteScheduler
// Everything following is owned by the serve loop; use serveG.check():
serveG goroutineLock // used to verify funcs are on serve()
pushEnabled bool
sawFirstSettings bool // got the initial SETTINGS frame after the preface
needToSendSettingsAck bool
unackedSettings int // how many SETTINGS have we sent without ACKs?
clientMaxStreams uint32 // SETTINGS_MAX_CONCURRENT_STREAMS from client (our PUSH_PROMISE limit)
advMaxStreams uint32 // our SETTINGS_MAX_CONCURRENT_STREAMS advertised the client
curClientStreams uint32 // number of open streams initiated by the client
curPushedStreams uint32 // number of open streams initiated by server push
maxClientStreamID uint32 // max ever seen from client (odd), or 0 if there have been no client requests
maxPushPromiseID uint32 // ID of the last push promise (even), or 0 if there have been no pushes
streams map[uint32]*stream
initialWindowSize int32
maxFrameSize int32
headerTableSize uint32
peerMaxHeaderListSize uint32 // zero means unknown (default)
canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case
writingFrame bool // started writing a frame (on serve goroutine or separate)
writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh
needsFrameFlush bool // last frame write wasn't a flush
inGoAway bool // we've started to or sent GOAWAY
inFrameScheduleLoop bool // whether we're in the scheduleFrameWrite loop
needToSendGoAway bool // we need to schedule a GOAWAY frame write
goAwayCode ErrCode
shutdownTimerCh <-chan time.Time // nil until used
shutdownTimer *time.Timer // nil until used
idleTimer *time.Timer // nil if unused
idleTimerCh <-chan time.Time // nil if unused
serveG goroutineLock // used to verify funcs are on serve()
pushEnabled bool
sawFirstSettings bool // got the initial SETTINGS frame after the preface
needToSendSettingsAck bool
unackedSettings int // how many SETTINGS have we sent without ACKs?
clientMaxStreams uint32 // SETTINGS_MAX_CONCURRENT_STREAMS from client (our PUSH_PROMISE limit)
advMaxStreams uint32 // our SETTINGS_MAX_CONCURRENT_STREAMS advertised the client
curClientStreams uint32 // number of open streams initiated by the client
curPushedStreams uint32 // number of open streams initiated by server push
maxClientStreamID uint32 // max ever seen from client (odd), or 0 if there have been no client requests
maxPushPromiseID uint32 // ID of the last push promise (even), or 0 if there have been no pushes
streams map[uint32]*stream
initialStreamSendWindowSize int32
maxFrameSize int32
headerTableSize uint32
peerMaxHeaderListSize uint32 // zero means unknown (default)
canonHeader map[string]string // http2-lower-case -> Go-Canonical-Case
writingFrame bool // started writing a frame (on serve goroutine or separate)
writingFrameAsync bool // started a frame on its own goroutine but haven't heard back on wroteFrameCh
needsFrameFlush bool // last frame write wasn't a flush
inGoAway bool // we've started to or sent GOAWAY
inFrameScheduleLoop bool // whether we're in the scheduleFrameWrite loop
needToSendGoAway bool // we need to schedule a GOAWAY frame write
goAwayCode ErrCode
shutdownTimer *time.Timer // nil until used
idleTimer *time.Timer // nil if unused
// Owned by the writeFrameAsync goroutine:
headerWriteBuf bytes.Buffer
hpackEncoder *hpack.Encoder
// Used by startGracefulShutdown.
shutdownOnce sync.Once
}
func (sc *serverConn) maxHeaderListSize() uint32 {
@@ -463,10 +538,10 @@ type stream struct {
numTrailerValues int64
weight uint8
state streamState
resetQueued bool // RST_STREAM queued for write; set by sc.resetStream
gotTrailerHeader bool // HEADER frame for trailers was seen
wroteHeaders bool // whether we wrote headers (not status 100)
reqBuf []byte // if non-nil, body pipe buffer to return later at EOF
resetQueued bool // RST_STREAM queued for write; set by sc.resetStream
gotTrailerHeader bool // HEADER frame for trailers was seen
wroteHeaders bool // whether we wrote headers (not status 100)
writeDeadline *time.Timer // nil if unused
trailer http.Header // accumulated trailers
reqTrailer http.Header // handler's Request.Trailer
@@ -696,15 +771,17 @@ func (sc *serverConn) serve() {
{SettingMaxFrameSize, sc.srv.maxReadFrameSize()},
{SettingMaxConcurrentStreams, sc.advMaxStreams},
{SettingMaxHeaderListSize, sc.maxHeaderListSize()},
// TODO: more actual settings, notably
// SettingInitialWindowSize, but then we also
// want to bump up the conn window size the
// same amount here right after the settings
{SettingInitialWindowSize, uint32(sc.srv.initialStreamRecvWindowSize())},
},
})
sc.unackedSettings++
// Each connection starts with intialWindowSize inflow tokens.
// If a higher value is configured, we add more tokens.
if diff := sc.srv.initialConnRecvWindowSize() - initialWindowSize; diff > 0 {
sc.sendWindowUpdate(nil, int(diff))
}
if err := sc.readPreface(); err != nil {
sc.condlogf(err, "http2: server: error reading preface from client %v: %v", sc.conn.RemoteAddr(), err)
return
@@ -717,27 +794,25 @@ func (sc *serverConn) serve() {
sc.setConnState(http.StateIdle)
if sc.srv.IdleTimeout != 0 {
sc.idleTimer = time.NewTimer(sc.srv.IdleTimeout)
sc.idleTimer = time.AfterFunc(sc.srv.IdleTimeout, sc.onIdleTimer)
defer sc.idleTimer.Stop()
sc.idleTimerCh = sc.idleTimer.C
}
var gracefulShutdownCh <-chan struct{}
if sc.hs != nil {
gracefulShutdownCh = h1ServerShutdownChan(sc.hs)
}
go sc.readFrames() // closed by defer sc.conn.Close above
settingsTimer := time.NewTimer(firstSettingsTimeout)
settingsTimer := time.AfterFunc(firstSettingsTimeout, sc.onSettingsTimer)
defer settingsTimer.Stop()
loopNum := 0
for {
loopNum++
select {
case wr := <-sc.wantWriteFrameCh:
if se, ok := wr.write.(StreamError); ok {
sc.resetStream(se)
break
}
sc.writeFrame(wr)
case spr := <-sc.wantStartPushCh:
sc.startPush(spr)
case res := <-sc.wroteFrameCh:
sc.wroteFrame(res)
case res := <-sc.readFrameCh:
@@ -745,26 +820,37 @@ func (sc *serverConn) serve() {
return
}
res.readMore()
if settingsTimer.C != nil {
if settingsTimer != nil {
settingsTimer.Stop()
settingsTimer.C = nil
settingsTimer = nil
}
case m := <-sc.bodyReadCh:
sc.noteBodyRead(m.st, m.n)
case <-settingsTimer.C:
sc.logf("timeout waiting for SETTINGS frames from %v", sc.conn.RemoteAddr())
return
case <-gracefulShutdownCh:
gracefulShutdownCh = nil
sc.startGracefulShutdown()
case <-sc.shutdownTimerCh:
sc.vlogf("GOAWAY close timer fired; closing conn from %v", sc.conn.RemoteAddr())
return
case <-sc.idleTimerCh:
sc.vlogf("connection is idle")
sc.goAway(ErrCodeNo)
case fn := <-sc.testHookCh:
fn(loopNum)
case msg := <-sc.serveMsgCh:
switch v := msg.(type) {
case func(int):
v(loopNum) // for testing
case *serverMessage:
switch v {
case settingsTimerMsg:
sc.logf("timeout waiting for SETTINGS frames from %v", sc.conn.RemoteAddr())
return
case idleTimerMsg:
sc.vlogf("connection is idle")
sc.goAway(ErrCodeNo)
case shutdownTimerMsg:
sc.vlogf("GOAWAY close timer fired; closing conn from %v", sc.conn.RemoteAddr())
return
case gracefulShutdownMsg:
sc.startGracefulShutdownInternal()
default:
panic("unknown timer")
}
case *startPushRequest:
sc.startPush(v)
default:
panic(fmt.Sprintf("unexpected type %T", v))
}
}
if sc.inGoAway && sc.curOpenStreams() == 0 && !sc.needToSendGoAway && !sc.writingFrame {
@@ -773,6 +859,36 @@ func (sc *serverConn) serve() {
}
}
func (sc *serverConn) awaitGracefulShutdown(sharedCh <-chan struct{}, privateCh chan struct{}) {
select {
case <-sc.doneServing:
case <-sharedCh:
close(privateCh)
}
}
type serverMessage int
// Message values sent to serveMsgCh.
var (
settingsTimerMsg = new(serverMessage)
idleTimerMsg = new(serverMessage)
shutdownTimerMsg = new(serverMessage)
gracefulShutdownMsg = new(serverMessage)
)
func (sc *serverConn) onSettingsTimer() { sc.sendServeMsg(settingsTimerMsg) }
func (sc *serverConn) onIdleTimer() { sc.sendServeMsg(idleTimerMsg) }
func (sc *serverConn) onShutdownTimer() { sc.sendServeMsg(shutdownTimerMsg) }
func (sc *serverConn) sendServeMsg(msg interface{}) {
sc.serveG.checkNotOn() // NOT
select {
case sc.serveMsgCh <- msg:
case <-sc.doneServing:
}
}
// readPreface reads the ClientPreface greeting from the peer
// or returns an error on timeout or an invalid greeting.
func (sc *serverConn) readPreface() error {
@@ -1014,7 +1130,11 @@ func (sc *serverConn) wroteFrame(res frameWriteResult) {
// stateClosed after the RST_STREAM frame is
// written.
st.state = stateHalfClosedLocal
sc.resetStream(streamError(st.id, ErrCodeCancel))
// Section 8.1: a server MAY request that the client abort
// transmission of a request without error by sending a
// RST_STREAM with an error code of NO_ERROR after sending
// a complete response.
sc.resetStream(streamError(st.id, ErrCodeNo))
case stateHalfClosedRemote:
sc.closeStream(st, errHandlerComplete)
}
@@ -1086,10 +1206,19 @@ func (sc *serverConn) scheduleFrameWrite() {
sc.inFrameScheduleLoop = false
}
// startGracefulShutdown sends a GOAWAY with ErrCodeNo to tell the
// client we're gracefully shutting down. The connection isn't closed
// until all current streams are done.
// startGracefulShutdown gracefully shuts down a connection. This
// sends GOAWAY with ErrCodeNo to tell the client we're gracefully
// shutting down. The connection isn't closed until all current
// streams are done.
//
// startGracefulShutdown returns immediately; it does not wait until
// the connection has shut down.
func (sc *serverConn) startGracefulShutdown() {
sc.serveG.checkNotOn() // NOT
sc.shutdownOnce.Do(func() { sc.sendServeMsg(gracefulShutdownMsg) })
}
func (sc *serverConn) startGracefulShutdownInternal() {
sc.goAwayIn(ErrCodeNo, 0)
}
@@ -1121,8 +1250,7 @@ func (sc *serverConn) goAwayIn(code ErrCode, forceCloseIn time.Duration) {
func (sc *serverConn) shutDownIn(d time.Duration) {
sc.serveG.check()
sc.shutdownTimer = time.NewTimer(d)
sc.shutdownTimerCh = sc.shutdownTimer.C
sc.shutdownTimer = time.AfterFunc(d, sc.onShutdownTimer)
}
func (sc *serverConn) resetStream(se StreamError) {
@@ -1305,6 +1433,9 @@ func (sc *serverConn) closeStream(st *stream, err error) {
panic(fmt.Sprintf("invariant; can't close stream in state %v", st.state))
}
st.state = stateClosed
if st.writeDeadline != nil {
st.writeDeadline.Stop()
}
if st.isPushed() {
sc.curPushedStreams--
} else {
@@ -1317,7 +1448,7 @@ func (sc *serverConn) closeStream(st *stream, err error) {
sc.idleTimer.Reset(sc.srv.IdleTimeout)
}
if h1ServerKeepAlivesDisabled(sc.hs) {
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
}
}
if p := st.body; p != nil {
@@ -1395,9 +1526,9 @@ func (sc *serverConn) processSettingInitialWindowSize(val uint32) error {
// adjust the size of all stream flow control windows that it
// maintains by the difference between the new value and the
// old value."
old := sc.initialWindowSize
sc.initialWindowSize = int32(val)
growth := sc.initialWindowSize - old // may be negative
old := sc.initialStreamSendWindowSize
sc.initialStreamSendWindowSize = int32(val)
growth := int32(val) - old // may be negative
for _, st := range sc.streams {
if !st.flow.add(growth) {
// 6.9.2 Initial Flow Control Window Size
@@ -1504,7 +1635,7 @@ func (sc *serverConn) processGoAway(f *GoAwayFrame) error {
} else {
sc.vlogf("http2: received GOAWAY %+v, starting graceful shutdown", f)
}
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
// http://tools.ietf.org/html/rfc7540#section-6.8
// We should not create any new streams, which means we should disable push.
sc.pushEnabled = false
@@ -1543,6 +1674,12 @@ func (st *stream) copyTrailersToHandlerRequest() {
}
}
// onWriteTimeout is run on its own goroutine (from time.AfterFunc)
// when the stream's WriteTimeout has fired.
func (st *stream) onWriteTimeout() {
st.sc.writeFrameFromHandler(FrameWriteRequest{write: streamError(st.id, ErrCodeInternal)})
}
func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error {
sc.serveG.check()
id := f.StreamID
@@ -1719,9 +1856,12 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream
}
st.cw.Init()
st.flow.conn = &sc.flow // link to conn-level counter
st.flow.add(sc.initialWindowSize)
st.inflow.conn = &sc.inflow // link to conn-level counter
st.inflow.add(initialWindowSize) // TODO: update this when we send a higher initial window size in the initial settings
st.flow.add(sc.initialStreamSendWindowSize)
st.inflow.conn = &sc.inflow // link to conn-level counter
st.inflow.add(sc.srv.initialStreamRecvWindowSize())
if sc.hs.WriteTimeout != 0 {
st.writeDeadline = time.AfterFunc(sc.hs.WriteTimeout, st.onWriteTimeout)
}
sc.streams[id] = st
sc.writeSched.OpenStream(st.id, OpenStreamOptions{PusherID: pusherID})
@@ -1785,16 +1925,14 @@ func (sc *serverConn) newWriterAndRequest(st *stream, f *MetaHeadersFrame) (*res
return nil, nil, err
}
if bodyOpen {
st.reqBuf = getRequestBodyBuf()
req.Body.(*requestBody).pipe = &pipe{
b: &fixedBuffer{buf: st.reqBuf},
}
if vv, ok := rp.header["Content-Length"]; ok {
req.ContentLength, _ = strconv.ParseInt(vv[0], 10, 64)
} else {
req.ContentLength = -1
}
req.Body.(*requestBody).pipe = &pipe{
b: &dataBuffer{expected: req.ContentLength},
}
}
return rw, req, nil
}
@@ -1890,24 +2028,6 @@ func (sc *serverConn) newWriterAndRequestNoBody(st *stream, rp requestParam) (*r
return rw, req, nil
}
var reqBodyCache = make(chan []byte, 8)
func getRequestBodyBuf() []byte {
select {
case b := <-reqBodyCache:
return b
default:
return make([]byte, initialWindowSize)
}
}
func putRequestBodyBuf(b []byte) {
select {
case reqBodyCache <- b:
default:
}
}
// Run on its own goroutine.
func (sc *serverConn) runHandler(rw *responseWriter, req *http.Request, handler func(http.ResponseWriter, *http.Request)) {
didPanic := true
@@ -2003,12 +2123,6 @@ func (sc *serverConn) noteBodyReadFromHandler(st *stream, n int, err error) {
case <-sc.doneServing:
}
}
if err == io.EOF {
if buf := st.reqBuf; buf != nil {
st.reqBuf = nil // shouldn't matter; field unused by other
putRequestBodyBuf(buf)
}
}
}
func (sc *serverConn) noteBodyRead(st *stream, n int) {
@@ -2138,6 +2252,7 @@ type responseWriterState struct {
wroteHeader bool // WriteHeader called (explicitly or implicitly). Not necessarily sent to user yet.
sentHeader bool // have we sent the header frame?
handlerDone bool // handler has finished
dirty bool // a Write failed; don't reuse this responseWriterState
sentContentLen int64 // non-zero if handler set a Content-Length header
wroteBytes int64
@@ -2219,6 +2334,7 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
date: date,
})
if err != nil {
rws.dirty = true
return 0, err
}
if endStream {
@@ -2240,6 +2356,7 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
if len(p) > 0 || endStream {
// only send a 0 byte DATA frame if we're ending the stream.
if err := rws.conn.writeDataFromHandler(rws.stream, p, endStream); err != nil {
rws.dirty = true
return 0, err
}
}
@@ -2251,6 +2368,9 @@ func (rws *responseWriterState) writeChunk(p []byte) (n int, err error) {
trailers: rws.trailers,
endStream: true,
})
if err != nil {
rws.dirty = true
}
return len(p), err
}
return len(p), nil
@@ -2390,7 +2510,7 @@ func cloneHeader(h http.Header) http.Header {
//
// * Handler calls w.Write or w.WriteString ->
// * -> rws.bw (*bufio.Writer) ->
// * (Handler migth call Flush)
// * (Handler might call Flush)
// * -> chunkWriter{rws}
// * -> responseWriterState.writeChunk(p []byte)
// * -> responseWriterState.writeChunk (most of the magic; see comment there)
@@ -2429,10 +2549,19 @@ func (w *responseWriter) write(lenData int, dataB []byte, dataS string) (n int,
func (w *responseWriter) handlerDone() {
rws := w.rws
dirty := rws.dirty
rws.handlerDone = true
w.Flush()
w.rws = nil
responseWriterStatePool.Put(rws)
if !dirty {
// Only recycle the pool if all prior Write calls to
// the serverConn goroutine completed successfully. If
// they returned earlier due to resets from the peer
// there might still be write goroutines outstanding
// from the serverConn referencing the rws memory. See
// issue 20704.
responseWriterStatePool.Put(rws)
}
}
// Push errors.
@@ -2514,7 +2643,7 @@ func (w *responseWriter) push(target string, opts pushOptions) error {
return fmt.Errorf("method %q must be GET or HEAD", opts.Method)
}
msg := startPushRequest{
msg := &startPushRequest{
parent: st,
method: opts.Method,
url: u,
@@ -2527,7 +2656,7 @@ func (w *responseWriter) push(target string, opts pushOptions) error {
return errClientDisconnected
case <-st.cw:
return errStreamClosed
case sc.wantStartPushCh <- msg:
case sc.serveMsgCh <- msg:
}
select {
@@ -2549,7 +2678,7 @@ type startPushRequest struct {
done chan error
}
func (sc *serverConn) startPush(msg startPushRequest) {
func (sc *serverConn) startPush(msg *startPushRequest) {
sc.serveG.check()
// http://tools.ietf.org/html/rfc7540#section-6.6.
@@ -2588,7 +2717,7 @@ func (sc *serverConn) startPush(msg startPushRequest) {
// A server that is unable to establish a new stream identifier can send a GOAWAY
// frame so that the client is forced to open a new connection for new streams.
if sc.maxPushPromiseID+2 >= 1<<31 {
sc.startGracefulShutdown()
sc.startGracefulShutdownInternal()
return 0, ErrPushLimitReached
}
sc.maxPushPromiseID += 2
@@ -2713,31 +2842,6 @@ var badTrailer = map[string]bool{
"Www-Authenticate": true,
}
// h1ServerShutdownChan returns a channel that will be closed when the
// provided *http.Server wants to shut down.
//
// This is a somewhat hacky way to get at http1 innards. It works
// when the http2 code is bundled into the net/http package in the
// standard library. The alternatives ended up making the cmd/go tool
// depend on http Servers. This is the lightest option for now.
// This is tested via the TestServeShutdown* tests in net/http.
func h1ServerShutdownChan(hs *http.Server) <-chan struct{} {
if fn := testh1ServerShutdownChan; fn != nil {
return fn(hs)
}
var x interface{} = hs
type I interface {
getDoneChan() <-chan struct{}
}
if hs, ok := x.(I); ok {
return hs.getDoneChan()
}
return nil
}
// optional test hook for h1ServerShutdownChan.
var testh1ServerShutdownChan func(hs *http.Server) <-chan struct{}
// h1ServerKeepAlivesDisabled reports whether hs has its keep-alives
// disabled. See comments on h1ServerShutdownChan above for why
// the code is written this way.

37
vendor/golang.org/x/net/http2/transport.go generated vendored
View File

@@ -694,7 +694,7 @@ func checkConnHeaders(req *http.Request) error {
// req.ContentLength, where 0 actually means zero (not unknown) and -1
// means unknown.
func actualContentLength(req *http.Request) int64 {
if req.Body == nil {
if req.Body == nil || reqBodyIsNoBody(req.Body) {
return 0
}
if req.ContentLength != 0 {
@@ -725,8 +725,8 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
}
body := req.Body
hasBody := body != nil
contentLen := actualContentLength(req)
hasBody := contentLen != 0
// TODO(bradfitz): this is a copy of the logic in net/http. Unify somewhere?
var requestedGzip bool
@@ -1528,8 +1528,7 @@ func (rl *clientConnReadLoop) handleResponse(cs *clientStream, f *MetaHeadersFra
return res, nil
}
buf := new(bytes.Buffer) // TODO(bradfitz): recycle this garbage
cs.bufPipe = pipe{b: buf}
cs.bufPipe = pipe{b: &dataBuffer{expected: res.ContentLength}}
cs.bytesRemain = res.ContentLength
res.Body = transportResponseBody{cs}
go cs.awaitRequestCancel(cs.req)
@@ -1656,6 +1655,7 @@ func (b transportResponseBody) Close() error {
cc.wmu.Lock()
if !serverSentStreamEnd {
cc.fr.WriteRSTStream(cs.ID, ErrCodeCancel)
cs.didReset = true
}
// Return connection-level flow control.
if unread > 0 {
@@ -1703,12 +1703,6 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error {
return nil
}
if f.Length > 0 {
if len(data) > 0 && cs.bufPipe.b == nil {
// Data frame after it's already closed?
cc.logf("http2: Transport received DATA frame for closed stream; closing connection")
return ConnectionError(ErrCodeProtocol)
}
// Check connection-level flow control.
cc.mu.Lock()
if cs.inflow.available() >= int32(f.Length) {
@@ -1719,16 +1713,27 @@ func (rl *clientConnReadLoop) processData(f *DataFrame) error {
}
// Return any padded flow control now, since we won't
// refund it later on body reads.
if pad := int32(f.Length) - int32(len(data)); pad > 0 {
cs.inflow.add(pad)
cc.inflow.add(pad)
var refund int
if pad := int(f.Length) - len(data); pad > 0 {
refund += pad
}
// Return len(data) now if the stream is already closed,
// since data will never be read.
didReset := cs.didReset
if didReset {
refund += len(data)
}
if refund > 0 {
cc.inflow.add(int32(refund))
cc.wmu.Lock()
cc.fr.WriteWindowUpdate(0, uint32(pad))
cc.fr.WriteWindowUpdate(cs.ID, uint32(pad))
cc.fr.WriteWindowUpdate(0, uint32(refund))
if !didReset {
cs.inflow.add(int32(refund))
cc.fr.WriteWindowUpdate(cs.ID, uint32(refund))
}
cc.bw.Flush()
cc.wmu.Unlock()
}
didReset := cs.didReset
cc.mu.Unlock()
if len(data) > 0 && !didReset {

2
vendor/golang.org/x/net/http2/writesched_priority.go generated vendored
View File

@@ -53,7 +53,7 @@ type PriorityWriteSchedulerConfig struct {
}
// NewPriorityWriteScheduler constructs a WriteScheduler that schedules
// frames by following HTTP/2 priorities as described in RFC 7340 Section 5.3.
// frames by following HTTP/2 priorities as described in RFC 7540 Section 5.3.
// If cfg is nil, default options are used.
func NewPriorityWriteScheduler(cfg *PriorityWriteSchedulerConfig) WriteScheduler {
if cfg == nil {

525
vendor/golang.org/x/net/internal/timeseries/timeseries.go generated vendored Normal file
View File

@@ -0,0 +1,525 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package timeseries implements a time series structure for stats collection.
package timeseries // import "golang.org/x/net/internal/timeseries"
import (
"fmt"
"log"
"time"
)
const (
timeSeriesNumBuckets = 64
minuteHourSeriesNumBuckets = 60
)
var timeSeriesResolutions = []time.Duration{
1 * time.Second,
10 * time.Second,
1 * time.Minute,
10 * time.Minute,
1 * time.Hour,
6 * time.Hour,
24 * time.Hour, // 1 day
7 * 24 * time.Hour, // 1 week
4 * 7 * 24 * time.Hour, // 4 weeks
16 * 7 * 24 * time.Hour, // 16 weeks
}
var minuteHourSeriesResolutions = []time.Duration{
1 * time.Second,
1 * time.Minute,
}
// An Observable is a kind of data that can be aggregated in a time series.
type Observable interface {
Multiply(ratio float64) // Multiplies the data in self by a given ratio
Add(other Observable) // Adds the data from a different observation to self
Clear() // Clears the observation so it can be reused.
CopyFrom(other Observable) // Copies the contents of a given observation to self
}
// Float attaches the methods of Observable to a float64.
type Float float64
// NewFloat returns a Float.
func NewFloat() Observable {
f := Float(0)
return &f
}
// String returns the float as a string.
func (f *Float) String() string { return fmt.Sprintf("%g", f.Value()) }
// Value returns the float's value.
func (f *Float) Value() float64 { return float64(*f) }
func (f *Float) Multiply(ratio float64) { *f *= Float(ratio) }
func (f *Float) Add(other Observable) {
o := other.(*Float)
*f += *o
}
func (f *Float) Clear() { *f = 0 }
func (f *Float) CopyFrom(other Observable) {
o := other.(*Float)
*f = *o
}
// A Clock tells the current time.
type Clock interface {
Time() time.Time
}
type defaultClock int
var defaultClockInstance defaultClock
func (defaultClock) Time() time.Time { return time.Now() }
// Information kept per level. Each level consists of a circular list of
// observations. The start of the level may be derived from end and the
// len(buckets) * sizeInMillis.
type tsLevel struct {
oldest int // index to oldest bucketed Observable
newest int // index to newest bucketed Observable
end time.Time // end timestamp for this level
size time.Duration // duration of the bucketed Observable
buckets []Observable // collections of observations
provider func() Observable // used for creating new Observable
}
func (l *tsLevel) Clear() {
l.oldest = 0
l.newest = len(l.buckets) - 1
l.end = time.Time{}
for i := range l.buckets {
if l.buckets[i] != nil {
l.buckets[i].Clear()
l.buckets[i] = nil
}
}
}
func (l *tsLevel) InitLevel(size time.Duration, numBuckets int, f func() Observable) {
l.size = size
l.provider = f
l.buckets = make([]Observable, numBuckets)
}
// Keeps a sequence of levels. Each level is responsible for storing data at
// a given resolution. For example, the first level stores data at a one
// minute resolution while the second level stores data at a one hour
// resolution.
// Each level is represented by a sequence of buckets. Each bucket spans an
// interval equal to the resolution of the level. New observations are added
// to the last bucket.
type timeSeries struct {
provider func() Observable // make more Observable
numBuckets int // number of buckets in each level
levels []*tsLevel // levels of bucketed Observable
lastAdd time.Time // time of last Observable tracked
total Observable // convenient aggregation of all Observable
clock Clock // Clock for getting current time
pending Observable // observations not yet bucketed
pendingTime time.Time // what time are we keeping in pending
dirty bool // if there are pending observations
}
// init initializes a level according to the supplied criteria.
func (ts *timeSeries) init(resolutions []time.Duration, f func() Observable, numBuckets int, clock Clock) {
ts.provider = f
ts.numBuckets = numBuckets
ts.clock = clock
ts.levels = make([]*tsLevel, len(resolutions))
for i := range resolutions {
if i > 0 && resolutions[i-1] >= resolutions[i] {
log.Print("timeseries: resolutions must be monotonically increasing")
break
}
newLevel := new(tsLevel)
newLevel.InitLevel(resolutions[i], ts.numBuckets, ts.provider)
ts.levels[i] = newLevel
}
ts.Clear()
}
// Clear removes all observations from the time series.
func (ts *timeSeries) Clear() {
ts.lastAdd = time.Time{}
ts.total = ts.resetObservation(ts.total)
ts.pending = ts.resetObservation(ts.pending)
ts.pendingTime = time.Time{}
ts.dirty = false
for i := range ts.levels {
ts.levels[i].Clear()
}
}
// Add records an observation at the current time.
func (ts *timeSeries) Add(observation Observable) {
ts.AddWithTime(observation, ts.clock.Time())
}
// AddWithTime records an observation at the specified time.
func (ts *timeSeries) AddWithTime(observation Observable, t time.Time) {
smallBucketDuration := ts.levels[0].size
if t.After(ts.lastAdd) {
ts.lastAdd = t
}
if t.After(ts.pendingTime) {
ts.advance(t)
ts.mergePendingUpdates()
ts.pendingTime = ts.levels[0].end
ts.pending.CopyFrom(observation)
ts.dirty = true
} else if t.After(ts.pendingTime.Add(-1 * smallBucketDuration)) {
// The observation is close enough to go into the pending bucket.
// This compensates for clock skewing and small scheduling delays
// by letting the update stay in the fast path.
ts.pending.Add(observation)
ts.dirty = true
} else {
ts.mergeValue(observation, t)
}
}
// mergeValue inserts the observation at the specified time in the past into all levels.
func (ts *timeSeries) mergeValue(observation Observable, t time.Time) {
for _, level := range ts.levels {
index := (ts.numBuckets - 1) - int(level.end.Sub(t)/level.size)
if 0 <= index && index < ts.numBuckets {
bucketNumber := (level.oldest + index) % ts.numBuckets
if level.buckets[bucketNumber] == nil {
level.buckets[bucketNumber] = level.provider()
}
level.buckets[bucketNumber].Add(observation)
}
}
ts.total.Add(observation)
}
// mergePendingUpdates applies the pending updates into all levels.
func (ts *timeSeries) mergePendingUpdates() {
if ts.dirty {
ts.mergeValue(ts.pending, ts.pendingTime)
ts.pending = ts.resetObservation(ts.pending)
ts.dirty = false
}
}
// advance cycles the buckets at each level until the latest bucket in
// each level can hold the time specified.
func (ts *timeSeries) advance(t time.Time) {
if !t.After(ts.levels[0].end) {
return
}
for i := 0; i < len(ts.levels); i++ {
level := ts.levels[i]
if !level.end.Before(t) {
break
}
// If the time is sufficiently far, just clear the level and advance
// directly.
if !t.Before(level.end.Add(level.size * time.Duration(ts.numBuckets))) {
for _, b := range level.buckets {
ts.resetObservation(b)
}
level.end = time.Unix(0, (t.UnixNano()/level.size.Nanoseconds())*level.size.Nanoseconds())
}
for t.After(level.end) {
level.end = level.end.Add(level.size)
level.newest = level.oldest
level.oldest = (level.oldest + 1) % ts.numBuckets
ts.resetObservation(level.buckets[level.newest])
}
t = level.end
}
}
// Latest returns the sum of the num latest buckets from the level.
func (ts *timeSeries) Latest(level, num int) Observable {
now := ts.clock.Time()
if ts.levels[0].end.Before(now) {
ts.advance(now)
}
ts.mergePendingUpdates()
result := ts.provider()
l := ts.levels[level]
index := l.newest
for i := 0; i < num; i++ {
if l.buckets[index] != nil {
result.Add(l.buckets[index])
}
if index == 0 {
index = ts.numBuckets
}
index--
}
return result
}
// LatestBuckets returns a copy of the num latest buckets from level.
func (ts *timeSeries) LatestBuckets(level, num int) []Observable {
if level < 0 || level > len(ts.levels) {
log.Print("timeseries: bad level argument: ", level)
return nil
}
if num < 0 || num >= ts.numBuckets {
log.Print("timeseries: bad num argument: ", num)
return nil
}
results := make([]Observable, num)
now := ts.clock.Time()
if ts.levels[0].end.Before(now) {
ts.advance(now)
}
ts.mergePendingUpdates()
l := ts.levels[level]
index := l.newest
for i := 0; i < num; i++ {
result := ts.provider()
results[i] = result
if l.buckets[index] != nil {
result.CopyFrom(l.buckets[index])
}
if index == 0 {
index = ts.numBuckets
}
index -= 1
}
return results
}
// ScaleBy updates observations by scaling by factor.
func (ts *timeSeries) ScaleBy(factor float64) {
for _, l := range ts.levels {
for i := 0; i < ts.numBuckets; i++ {
l.buckets[i].Multiply(factor)
}
}
ts.total.Multiply(factor)
ts.pending.Multiply(factor)
}
// Range returns the sum of observations added over the specified time range.
// If start or finish times don't fall on bucket boundaries of the same
// level, then return values are approximate answers.
func (ts *timeSeries) Range(start, finish time.Time) Observable {
return ts.ComputeRange(start, finish, 1)[0]
}
// Recent returns the sum of observations from the last delta.
func (ts *timeSeries) Recent(delta time.Duration) Observable {
now := ts.clock.Time()
return ts.Range(now.Add(-delta), now)
}
// Total returns the total of all observations.
func (ts *timeSeries) Total() Observable {
ts.mergePendingUpdates()
return ts.total
}
// ComputeRange computes a specified number of values into a slice using
// the observations recorded over the specified time period. The return
// values are approximate if the start or finish times don't fall on the
// bucket boundaries at the same level or if the number of buckets spanning
// the range is not an integral multiple of num.
func (ts *timeSeries) ComputeRange(start, finish time.Time, num int) []Observable {
if start.After(finish) {
log.Printf("timeseries: start > finish, %v>%v", start, finish)
return nil
}
if num < 0 {
log.Printf("timeseries: num < 0, %v", num)
return nil
}
results := make([]Observable, num)
for _, l := range ts.levels {
if !start.Before(l.end.Add(-l.size * time.Duration(ts.numBuckets))) {
ts.extract(l, start, finish, num, results)
return results
}
}
// Failed to find a level that covers the desired range. So just
// extract from the last level, even if it doesn't cover the entire
// desired range.
ts.extract(ts.levels[len(ts.levels)-1], start, finish, num, results)
return results
}
// RecentList returns the specified number of values in slice over the most
// recent time period of the specified range.
func (ts *timeSeries) RecentList(delta time.Duration, num int) []Observable {
if delta < 0 {
return nil
}
now := ts.clock.Time()
return ts.ComputeRange(now.Add(-delta), now, num)
}
// extract returns a slice of specified number of observations from a given
// level over a given range.
func (ts *timeSeries) extract(l *tsLevel, start, finish time.Time, num int, results []Observable) {
ts.mergePendingUpdates()
srcInterval := l.size
dstInterval := finish.Sub(start) / time.Duration(num)
dstStart := start
srcStart := l.end.Add(-srcInterval * time.Duration(ts.numBuckets))
srcIndex := 0
// Where should scanning start?
if dstStart.After(srcStart) {
advance := dstStart.Sub(srcStart) / srcInterval
srcIndex += int(advance)
srcStart = srcStart.Add(advance * srcInterval)
}
// The i'th value is computed as show below.
// interval = (finish/start)/num
// i'th value = sum of observation in range
// [ start + i * interval,
// start + (i + 1) * interval )
for i := 0; i < num; i++ {
results[i] = ts.resetObservation(results[i])
dstEnd := dstStart.Add(dstInterval)
for srcIndex < ts.numBuckets && srcStart.Before(dstEnd) {
srcEnd := srcStart.Add(srcInterval)
if srcEnd.After(ts.lastAdd) {
srcEnd = ts.lastAdd
}
if !srcEnd.Before(dstStart) {
srcValue := l.buckets[(srcIndex+l.oldest)%ts.numBuckets]
if !srcStart.Before(dstStart) && !srcEnd.After(dstEnd) {
// dst completely contains src.
if srcValue != nil {
results[i].Add(srcValue)
}
} else {
// dst partially overlaps src.
overlapStart := maxTime(srcStart, dstStart)
overlapEnd := minTime(srcEnd, dstEnd)
base := srcEnd.Sub(srcStart)
fraction := overlapEnd.Sub(overlapStart).Seconds() / base.Seconds()
used := ts.provider()
if srcValue != nil {
used.CopyFrom(srcValue)
}
used.Multiply(fraction)
results[i].Add(used)
}
if srcEnd.After(dstEnd) {
break
}
}
srcIndex++
srcStart = srcStart.Add(srcInterval)
}
dstStart = dstStart.Add(dstInterval)
}
}
// resetObservation clears the content so the struct may be reused.
func (ts *timeSeries) resetObservation(observation Observable) Observable {
if observation == nil {
observation = ts.provider()
} else {
observation.Clear()
}
return observation
}
// TimeSeries tracks data at granularities from 1 second to 16 weeks.
type TimeSeries struct {
timeSeries
}
// NewTimeSeries creates a new TimeSeries using the function provided for creating new Observable.
func NewTimeSeries(f func() Observable) *TimeSeries {
return NewTimeSeriesWithClock(f, defaultClockInstance)
}
// NewTimeSeriesWithClock creates a new TimeSeries using the function provided for creating new Observable and the clock for
// assigning timestamps.
func NewTimeSeriesWithClock(f func() Observable, clock Clock) *TimeSeries {
ts := new(TimeSeries)
ts.timeSeries.init(timeSeriesResolutions, f, timeSeriesNumBuckets, clock)
return ts
}
// MinuteHourSeries tracks data at granularities of 1 minute and 1 hour.
type MinuteHourSeries struct {
timeSeries
}
// NewMinuteHourSeries creates a new MinuteHourSeries using the function provided for creating new Observable.
func NewMinuteHourSeries(f func() Observable) *MinuteHourSeries {
return NewMinuteHourSeriesWithClock(f, defaultClockInstance)
}
// NewMinuteHourSeriesWithClock creates a new MinuteHourSeries using the function provided for creating new Observable and the clock for
// assigning timestamps.
func NewMinuteHourSeriesWithClock(f func() Observable, clock Clock) *MinuteHourSeries {
ts := new(MinuteHourSeries)
ts.timeSeries.init(minuteHourSeriesResolutions, f,
minuteHourSeriesNumBuckets, clock)
return ts
}
func (ts *MinuteHourSeries) Minute() Observable {
return ts.timeSeries.Latest(0, 60)
}
func (ts *MinuteHourSeries) Hour() Observable {
return ts.timeSeries.Latest(1, 60)
}
func minTime(a, b time.Time) time.Time {
if a.Before(b) {
return a
}
return b
}
func maxTime(a, b time.Time) time.Time {
if a.After(b) {
return a
}
return b
}

532
vendor/golang.org/x/net/trace/events.go generated vendored Normal file
View File

@@ -0,0 +1,532 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package trace
import (
"bytes"
"fmt"
"html/template"
"io"
"log"
"net/http"
"runtime"
"sort"
"strconv"
"strings"
"sync"
"sync/atomic"
"text/tabwriter"
"time"
)
const maxEventsPerLog = 100
type bucket struct {
MaxErrAge time.Duration
String string
}
var buckets = []bucket{
{0, "total"},
{10 * time.Second, "errs<10s"},
{1 * time.Minute, "errs<1m"},
{10 * time.Minute, "errs<10m"},
{1 * time.Hour, "errs<1h"},
{10 * time.Hour, "errs<10h"},
{24000 * time.Hour, "errors"},
}
// RenderEvents renders the HTML page typically served at /debug/events.
// It does not do any auth checking. The request may be nil.
//
// Most users will use the Events handler.
func RenderEvents(w http.ResponseWriter, req *http.Request, sensitive bool) {
now := time.Now()
data := &struct {
Families []string // family names
Buckets []bucket
Counts [][]int // eventLog count per family/bucket
// Set when a bucket has been selected.
Family string
Bucket int
EventLogs eventLogs
Expanded bool
}{
Buckets: buckets,
}
data.Families = make([]string, 0, len(families))
famMu.RLock()
for name := range families {
data.Families = append(data.Families, name)
}
famMu.RUnlock()
sort.Strings(data.Families)
// Count the number of eventLogs in each family for each error age.
data.Counts = make([][]int, len(data.Families))
for i, name := range data.Families {
// TODO(sameer): move this loop under the family lock.
f := getEventFamily(name)
data.Counts[i] = make([]int, len(data.Buckets))
for j, b := range data.Buckets {
data.Counts[i][j] = f.Count(now, b.MaxErrAge)
}
}
if req != nil {
var ok bool
data.Family, data.Bucket, ok = parseEventsArgs(req)
if !ok {
// No-op
} else {
data.EventLogs = getEventFamily(data.Family).Copy(now, buckets[data.Bucket].MaxErrAge)
}
if data.EventLogs != nil {
defer data.EventLogs.Free()
sort.Sort(data.EventLogs)
}
if exp, err := strconv.ParseBool(req.FormValue("exp")); err == nil {
data.Expanded = exp
}
}
famMu.RLock()
defer famMu.RUnlock()
if err := eventsTmpl().Execute(w, data); err != nil {
log.Printf("net/trace: Failed executing template: %v", err)
}
}
func parseEventsArgs(req *http.Request) (fam string, b int, ok bool) {
fam, bStr := req.FormValue("fam"), req.FormValue("b")
if fam == "" || bStr == "" {
return "", 0, false
}
b, err := strconv.Atoi(bStr)
if err != nil || b < 0 || b >= len(buckets) {
return "", 0, false
}
return fam, b, true
}
// An EventLog provides a log of events associated with a specific object.
type EventLog interface {
// Printf formats its arguments with fmt.Sprintf and adds the
// result to the event log.
Printf(format string, a ...interface{})
// Errorf is like Printf, but it marks this event as an error.
Errorf(format string, a ...interface{})
// Finish declares that this event log is complete.
// The event log should not be used after calling this method.
Finish()
}
// NewEventLog returns a new EventLog with the specified family name
// and title.
func NewEventLog(family, title string) EventLog {
el := newEventLog()
el.ref()
el.Family, el.Title = family, title
el.Start = time.Now()
el.events = make([]logEntry, 0, maxEventsPerLog)
el.stack = make([]uintptr, 32)
n := runtime.Callers(2, el.stack)
el.stack = el.stack[:n]
getEventFamily(family).add(el)
return el
}
func (el *eventLog) Finish() {
getEventFamily(el.Family).remove(el)
el.unref() // matches ref in New
}
var (
famMu sync.RWMutex
families = make(map[string]*eventFamily) // family name => family
)
func getEventFamily(fam string) *eventFamily {
famMu.Lock()
defer famMu.Unlock()
f := families[fam]
if f == nil {
f = &eventFamily{}
families[fam] = f
}
return f
}
type eventFamily struct {
mu sync.RWMutex
eventLogs eventLogs
}
func (f *eventFamily) add(el *eventLog) {
f.mu.Lock()
f.eventLogs = append(f.eventLogs, el)
f.mu.Unlock()
}
func (f *eventFamily) remove(el *eventLog) {
f.mu.Lock()
defer f.mu.Unlock()
for i, el0 := range f.eventLogs {
if el == el0 {
copy(f.eventLogs[i:], f.eventLogs[i+1:])
f.eventLogs = f.eventLogs[:len(f.eventLogs)-1]
return
}
}
}
func (f *eventFamily) Count(now time.Time, maxErrAge time.Duration) (n int) {
f.mu.RLock()
defer f.mu.RUnlock()
for _, el := range f.eventLogs {
if el.hasRecentError(now, maxErrAge) {
n++
}
}
return
}
func (f *eventFamily) Copy(now time.Time, maxErrAge time.Duration) (els eventLogs) {
f.mu.RLock()
defer f.mu.RUnlock()
els = make(eventLogs, 0, len(f.eventLogs))
for _, el := range f.eventLogs {
if el.hasRecentError(now, maxErrAge) {
el.ref()
els = append(els, el)
}
}
return
}
type eventLogs []*eventLog
// Free calls unref on each element of the list.
func (els eventLogs) Free() {
for _, el := range els {
el.unref()
}
}
// eventLogs may be sorted in reverse chronological order.
func (els eventLogs) Len() int { return len(els) }
func (els eventLogs) Less(i, j int) bool { return els[i].Start.After(els[j].Start) }
func (els eventLogs) Swap(i, j int) { els[i], els[j] = els[j], els[i] }
// A logEntry is a timestamped log entry in an event log.
type logEntry struct {
When time.Time
Elapsed time.Duration // since previous event in log
NewDay bool // whether this event is on a different day to the previous event
What string
IsErr bool
}
// WhenString returns a string representation of the elapsed time of the event.
// It will include the date if midnight was crossed.
func (e logEntry) WhenString() string {
if e.NewDay {
return e.When.Format("2006/01/02 15:04:05.000000")
}
return e.When.Format("15:04:05.000000")
}
// An eventLog represents an active event log.
type eventLog struct {
// Family is the top-level grouping of event logs to which this belongs.
Family string
// Title is the title of this event log.
Title string
// Timing information.
Start time.Time
// Call stack where this event log was created.
stack []uintptr
// Append-only sequence of events.
//
// TODO(sameer): change this to a ring buffer to avoid the array copy
// when we hit maxEventsPerLog.
mu sync.RWMutex
events []logEntry
LastErrorTime time.Time
discarded int
refs int32 // how many buckets this is in
}
func (el *eventLog) reset() {
// Clear all but the mutex. Mutexes may not be copied, even when unlocked.
el.Family = ""
el.Title = ""
el.Start = time.Time{}
el.stack = nil
el.events = nil
el.LastErrorTime = time.Time{}
el.discarded = 0
el.refs = 0
}
func (el *eventLog) hasRecentError(now time.Time, maxErrAge time.Duration) bool {
if maxErrAge == 0 {
return true
}
el.mu.RLock()
defer el.mu.RUnlock()
return now.Sub(el.LastErrorTime) < maxErrAge
}
// delta returns the elapsed time since the last event or the log start,
// and whether it spans midnight.
// L >= el.mu
func (el *eventLog) delta(t time.Time) (time.Duration, bool) {
if len(el.events) == 0 {
return t.Sub(el.Start), false
}
prev := el.events[len(el.events)-1].When
return t.Sub(prev), prev.Day() != t.Day()
}
func (el *eventLog) Printf(format string, a ...interface{}) {
el.printf(false, format, a...)
}
func (el *eventLog) Errorf(format string, a ...interface{}) {
el.printf(true, format, a...)
}
func (el *eventLog) printf(isErr bool, format string, a ...interface{}) {
e := logEntry{When: time.Now(), IsErr: isErr, What: fmt.Sprintf(format, a...)}
el.mu.Lock()
e.Elapsed, e.NewDay = el.delta(e.When)
if len(el.events) < maxEventsPerLog {
el.events = append(el.events, e)
} else {
// Discard the oldest event.
if el.discarded == 0 {
// el.discarded starts at two to count for the event it
// is replacing, plus the next one that we are about to
// drop.
el.discarded = 2
} else {
el.discarded++
}
// TODO(sameer): if this causes allocations on a critical path,
// change eventLog.What to be a fmt.Stringer, as in trace.go.
el.events[0].What = fmt.Sprintf("(%d events discarded)", el.discarded)
// The timestamp of the discarded meta-event should be
// the time of the last event it is representing.
el.events[0].When = el.events[1].When
copy(el.events[1:], el.events[2:])
el.events[maxEventsPerLog-1] = e
}
if e.IsErr {
el.LastErrorTime = e.When
}
el.mu.Unlock()
}
func (el *eventLog) ref() {
atomic.AddInt32(&el.refs, 1)
}
func (el *eventLog) unref() {
if atomic.AddInt32(&el.refs, -1) == 0 {
freeEventLog(el)
}
}
func (el *eventLog) When() string {
return el.Start.Format("2006/01/02 15:04:05.000000")
}
func (el *eventLog) ElapsedTime() string {
elapsed := time.Since(el.Start)
return fmt.Sprintf("%.6f", elapsed.Seconds())
}
func (el *eventLog) Stack() string {
buf := new(bytes.Buffer)
tw := tabwriter.NewWriter(buf, 1, 8, 1, '\t', 0)
printStackRecord(tw, el.stack)
tw.Flush()
return buf.String()
}
// printStackRecord prints the function + source line information
// for a single stack trace.
// Adapted from runtime/pprof/pprof.go.
func printStackRecord(w io.Writer, stk []uintptr) {
for _, pc := range stk {
f := runtime.FuncForPC(pc)
if f == nil {
continue
}
file, line := f.FileLine(pc)
name := f.Name()
// Hide runtime.goexit and any runtime functions at the beginning.
if strings.HasPrefix(name, "runtime.") {
continue
}
fmt.Fprintf(w, "# %s\t%s:%d\n", name, file, line)
}
}
func (el *eventLog) Events() []logEntry {
el.mu.RLock()
defer el.mu.RUnlock()
return el.events
}
// freeEventLogs is a freelist of *eventLog
var freeEventLogs = make(chan *eventLog, 1000)
// newEventLog returns a event log ready to use.
func newEventLog() *eventLog {
select {
case el := <-freeEventLogs:
return el
default:
return new(eventLog)
}
}
// freeEventLog adds el to freeEventLogs if there's room.
// This is non-blocking.
func freeEventLog(el *eventLog) {
el.reset()
select {
case freeEventLogs <- el:
default:
}
}
var eventsTmplCache *template.Template
var eventsTmplOnce sync.Once
func eventsTmpl() *template.Template {
eventsTmplOnce.Do(func() {
eventsTmplCache = template.Must(template.New("events").Funcs(template.FuncMap{
"elapsed": elapsed,
"trimSpace": strings.TrimSpace,
}).Parse(eventsHTML))
})
return eventsTmplCache
}
const eventsHTML = `
<html>
<head>
<title>events</title>
</head>
<style type="text/css">
body {
font-family: sans-serif;
}
table#req-status td.family {
padding-right: 2em;
}
table#req-status td.active {
padding-right: 1em;
}
table#req-status td.empty {
color: #aaa;
}
table#reqs {
margin-top: 1em;
}
table#reqs tr.first {
{{if $.Expanded}}font-weight: bold;{{end}}
}
table#reqs td {
font-family: monospace;
}
table#reqs td.when {
text-align: right;
white-space: nowrap;
}
table#reqs td.elapsed {
padding: 0 0.5em;
text-align: right;
white-space: pre;
width: 10em;
}
address {
font-size: smaller;
margin-top: 5em;
}
</style>
<body>
<h1>/debug/events</h1>
<table id="req-status">
{{range $i, $fam := .Families}}
<tr>
<td class="family">{{$fam}}</td>
{{range $j, $bucket := $.Buckets}}
{{$n := index $.Counts $i $j}}
<td class="{{if not $bucket.MaxErrAge}}active{{end}}{{if not $n}}empty{{end}}">
{{if $n}}<a href="?fam={{$fam}}&b={{$j}}{{if $.Expanded}}&exp=1{{end}}">{{end}}
[{{$n}} {{$bucket.String}}]
{{if $n}}</a>{{end}}
</td>
{{end}}
</tr>{{end}}
</table>
{{if $.EventLogs}}
<hr />
<h3>Family: {{$.Family}}</h3>
{{if $.Expanded}}<a href="?fam={{$.Family}}&b={{$.Bucket}}">{{end}}
[Summary]{{if $.Expanded}}</a>{{end}}
{{if not $.Expanded}}<a href="?fam={{$.Family}}&b={{$.Bucket}}&exp=1">{{end}}
[Expanded]{{if not $.Expanded}}</a>{{end}}
<table id="reqs">
<tr><th>When</th><th>Elapsed</th></tr>
{{range $el := $.EventLogs}}
<tr class="first">
<td class="when">{{$el.When}}</td>
<td class="elapsed">{{$el.ElapsedTime}}</td>
<td>{{$el.Title}}
</tr>
{{if $.Expanded}}
<tr>
<td class="when"></td>
<td class="elapsed"></td>
<td><pre>{{$el.Stack|trimSpace}}</pre></td>
</tr>
{{range $el.Events}}
<tr>
<td class="when">{{.WhenString}}</td>
<td class="elapsed">{{elapsed .Elapsed}}</td>
<td>.{{if .IsErr}}E{{else}}.{{end}}. {{.What}}</td>
</tr>
{{end}}
{{end}}
{{end}}
</table>
{{end}}
</body>
</html>
`

365
vendor/golang.org/x/net/trace/histogram.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package trace
// This file implements histogramming for RPC statistics collection.
import (
"bytes"
"fmt"
"html/template"
"log"
"math"
"sync"
"golang.org/x/net/internal/timeseries"
)
const (
bucketCount = 38
)
// histogram keeps counts of values in buckets that are spaced
// out in powers of 2: 0-1, 2-3, 4-7...
// histogram implements timeseries.Observable
type histogram struct {
sum int64 // running total of measurements
sumOfSquares float64 // square of running total
buckets []int64 // bucketed values for histogram
value int // holds a single value as an optimization
valueCount int64 // number of values recorded for single value
}
// AddMeasurement records a value measurement observation to the histogram.
func (h *histogram) addMeasurement(value int64) {
// TODO: assert invariant
h.sum += value
h.sumOfSquares += float64(value) * float64(value)
bucketIndex := getBucket(value)
if h.valueCount == 0 || (h.valueCount > 0 && h.value == bucketIndex) {
h.value = bucketIndex
h.valueCount++
} else {
h.allocateBuckets()
h.buckets[bucketIndex]++
}
}
func (h *histogram) allocateBuckets() {
if h.buckets == nil {
h.buckets = make([]int64, bucketCount)
h.buckets[h.value] = h.valueCount
h.value = 0
h.valueCount = -1
}
}
func log2(i int64) int {
n := 0
for ; i >= 0x100; i >>= 8 {
n += 8
}
for ; i > 0; i >>= 1 {
n += 1
}
return n
}
func getBucket(i int64) (index int) {
index = log2(i) - 1
if index < 0 {
index = 0
}
if index >= bucketCount {
index = bucketCount - 1
}
return
}
// Total returns the number of recorded observations.
func (h *histogram) total() (total int64) {
if h.valueCount >= 0 {
total = h.valueCount
}
for _, val := range h.buckets {
total += int64(val)
}
return
}
// Average returns the average value of recorded observations.
func (h *histogram) average() float64 {
t := h.total()
if t == 0 {
return 0
}
return float64(h.sum) / float64(t)
}
// Variance returns the variance of recorded observations.
func (h *histogram) variance() float64 {
t := float64(h.total())
if t == 0 {
return 0
}
s := float64(h.sum) / t
return h.sumOfSquares/t - s*s
}
// StandardDeviation returns the standard deviation of recorded observations.
func (h *histogram) standardDeviation() float64 {
return math.Sqrt(h.variance())
}
// PercentileBoundary estimates the value that the given fraction of recorded
// observations are less than.
func (h *histogram) percentileBoundary(percentile float64) int64 {
total := h.total()
// Corner cases (make sure result is strictly less than Total())
if total == 0 {
return 0
} else if total == 1 {
return int64(h.average())
}
percentOfTotal := round(float64(total) * percentile)
var runningTotal int64
for i := range h.buckets {
value := h.buckets[i]
runningTotal += value
if runningTotal == percentOfTotal {
// We hit an exact bucket boundary. If the next bucket has data, it is a
// good estimate of the value. If the bucket is empty, we interpolate the
// midpoint between the next bucket's boundary and the next non-zero
// bucket. If the remaining buckets are all empty, then we use the
// boundary for the next bucket as the estimate.
j := uint8(i + 1)
min := bucketBoundary(j)
if runningTotal < total {
for h.buckets[j] == 0 {
j++
}
}
max := bucketBoundary(j)
return min + round(float64(max-min)/2)
} else if runningTotal > percentOfTotal {
// The value is in this bucket. Interpolate the value.
delta := runningTotal - percentOfTotal
percentBucket := float64(value-delta) / float64(value)
bucketMin := bucketBoundary(uint8(i))
nextBucketMin := bucketBoundary(uint8(i + 1))
bucketSize := nextBucketMin - bucketMin
return bucketMin + round(percentBucket*float64(bucketSize))
}
}
return bucketBoundary(bucketCount - 1)
}
// Median returns the estimated median of the observed values.
func (h *histogram) median() int64 {
return h.percentileBoundary(0.5)
}
// Add adds other to h.
func (h *histogram) Add(other timeseries.Observable) {
o := other.(*histogram)
if o.valueCount == 0 {
// Other histogram is empty
} else if h.valueCount >= 0 && o.valueCount > 0 && h.value == o.value {
// Both have a single bucketed value, aggregate them
h.valueCount += o.valueCount
} else {
// Two different values necessitate buckets in this histogram
h.allocateBuckets()
if o.valueCount >= 0 {
h.buckets[o.value] += o.valueCount
} else {
for i := range h.buckets {
h.buckets[i] += o.buckets[i]
}
}
}
h.sumOfSquares += o.sumOfSquares
h.sum += o.sum
}
// Clear resets the histogram to an empty state, removing all observed values.
func (h *histogram) Clear() {
h.buckets = nil
h.value = 0
h.valueCount = 0
h.sum = 0
h.sumOfSquares = 0
}
// CopyFrom copies from other, which must be a *histogram, into h.
func (h *histogram) CopyFrom(other timeseries.Observable) {
o := other.(*histogram)
if o.valueCount == -1 {
h.allocateBuckets()
copy(h.buckets, o.buckets)
}
h.sum = o.sum
h.sumOfSquares = o.sumOfSquares
h.value = o.value
h.valueCount = o.valueCount
}
// Multiply scales the histogram by the specified ratio.
func (h *histogram) Multiply(ratio float64) {
if h.valueCount == -1 {
for i := range h.buckets {
h.buckets[i] = int64(float64(h.buckets[i]) * ratio)
}
} else {
h.valueCount = int64(float64(h.valueCount) * ratio)
}
h.sum = int64(float64(h.sum) * ratio)
h.sumOfSquares = h.sumOfSquares * ratio
}
// New creates a new histogram.
func (h *histogram) New() timeseries.Observable {
r := new(histogram)
r.Clear()
return r
}
func (h *histogram) String() string {
return fmt.Sprintf("%d, %f, %d, %d, %v",
h.sum, h.sumOfSquares, h.value, h.valueCount, h.buckets)
}
// round returns the closest int64 to the argument
func round(in float64) int64 {
return int64(math.Floor(in + 0.5))
}
// bucketBoundary returns the first value in the bucket.
func bucketBoundary(bucket uint8) int64 {
if bucket == 0 {
return 0
}
return 1 << bucket
}
// bucketData holds data about a specific bucket for use in distTmpl.
type bucketData struct {
Lower, Upper int64
N int64
Pct, CumulativePct float64
GraphWidth int
}
// data holds data about a Distribution for use in distTmpl.
type data struct {
Buckets []*bucketData
Count, Median int64
Mean, StandardDeviation float64
}
// maxHTMLBarWidth is the maximum width of the HTML bar for visualizing buckets.
const maxHTMLBarWidth = 350.0
// newData returns data representing h for use in distTmpl.
func (h *histogram) newData() *data {
// Force the allocation of buckets to simplify the rendering implementation
h.allocateBuckets()
// We scale the bars on the right so that the largest bar is
// maxHTMLBarWidth pixels in width.
maxBucket := int64(0)
for _, n := range h.buckets {
if n > maxBucket {
maxBucket = n
}
}
total := h.total()
barsizeMult := maxHTMLBarWidth / float64(maxBucket)
var pctMult float64
if total == 0 {
pctMult = 1.0
} else {
pctMult = 100.0 / float64(total)
}
buckets := make([]*bucketData, len(h.buckets))
runningTotal := int64(0)
for i, n := range h.buckets {
if n == 0 {
continue
}
runningTotal += n
var upperBound int64
if i < bucketCount-1 {
upperBound = bucketBoundary(uint8(i + 1))
} else {
upperBound = math.MaxInt64
}
buckets[i] = &bucketData{
Lower: bucketBoundary(uint8(i)),
Upper: upperBound,
N: n,
Pct: float64(n) * pctMult,
CumulativePct: float64(runningTotal) * pctMult,
GraphWidth: int(float64(n) * barsizeMult),
}
}
return &data{
Buckets: buckets,
Count: total,
Median: h.median(),
Mean: h.average(),
StandardDeviation: h.standardDeviation(),
}
}
func (h *histogram) html() template.HTML {
buf := new(bytes.Buffer)
if err := distTmpl().Execute(buf, h.newData()); err != nil {
buf.Reset()
log.Printf("net/trace: couldn't execute template: %v", err)
}
return template.HTML(buf.String())
}
var distTmplCache *template.Template
var distTmplOnce sync.Once
func distTmpl() *template.Template {
distTmplOnce.Do(func() {
// Input: data
distTmplCache = template.Must(template.New("distTmpl").Parse(`
<table>
<tr>
<td style="padding:0.25em">Count: {{.Count}}</td>
<td style="padding:0.25em">Mean: {{printf "%.0f" .Mean}}</td>
<td style="padding:0.25em">StdDev: {{printf "%.0f" .StandardDeviation}}</td>
<td style="padding:0.25em">Median: {{.Median}}</td>
</tr>
</table>
<hr>
<table>
{{range $b := .Buckets}}
{{if $b}}
<tr>
<td style="padding:0 0 0 0.25em">[</td>
<td style="text-align:right;padding:0 0.25em">{{.Lower}},</td>
<td style="text-align:right;padding:0 0.25em">{{.Upper}})</td>
<td style="text-align:right;padding:0 0.25em">{{.N}}</td>
<td style="text-align:right;padding:0 0.25em">{{printf "%#.3f" .Pct}}%</td>
<td style="text-align:right;padding:0 0.25em">{{printf "%#.3f" .CumulativePct}}%</td>
<td><div style="background-color: blue; height: 1em; width: {{.GraphWidth}};"></div></td>
</tr>
{{end}}
{{end}}
</table>
`))
})
return distTmplCache
}

1082
vendor/golang.org/x/net/trace/trace.go generated vendored Normal file
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21
vendor/golang.org/x/net/trace/trace_go16.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.7
package trace
import "golang.org/x/net/context"
// NewContext returns a copy of the parent context
// and associates it with a Trace.
func NewContext(ctx context.Context, tr Trace) context.Context {
return context.WithValue(ctx, contextKey, tr)
}
// FromContext returns the Trace bound to the context, if any.
func FromContext(ctx context.Context) (tr Trace, ok bool) {
tr, ok = ctx.Value(contextKey).(Trace)
return
}

21
vendor/golang.org/x/net/trace/trace_go17.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.7
package trace
import "context"
// NewContext returns a copy of the parent context
// and associates it with a Trace.
func NewContext(ctx context.Context, tr Trace) context.Context {
return context.WithValue(ctx, contextKey, tr)
}
// FromContext returns the Trace bound to the context, if any.
func FromContext(ctx context.Context) (tr Trace, ok bool) {
tr, ok = ctx.Value(contextKey).(Trace)
return
}