diff options
Diffstat (limited to 'vendor/github.com/gin-contrib')
27 files changed, 1710 insertions, 0 deletions
diff --git a/vendor/github.com/gin-contrib/cors/.gitignore b/vendor/github.com/gin-contrib/cors/.gitignore new file mode 100644 index 000000000..b4ecae3ad --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/.gitignore @@ -0,0 +1,23 @@ +*.o +*.a +*.so + +_obj +_test + +*.[568vq] +[568vq].out + +*.cgo1.go +*.cgo2.c +_cgo_defun.c +_cgo_gotypes.go +_cgo_export.* + +_testmain.go + +*.exe +*.test +*.prof + +coverage.out diff --git a/vendor/github.com/gin-contrib/cors/.travis.yml b/vendor/github.com/gin-contrib/cors/.travis.yml new file mode 100644 index 000000000..e5308a10d --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/.travis.yml @@ -0,0 +1,31 @@ +language: go +sudo: false + +go: + - 1.11.x + - 1.12.x + - 1.13.x + - 1.14.x + - master + +matrix: + fast_finish: true + include: + - go: 1.11.x + env: GO111MODULE=on + - go: 1.12.x + env: GO111MODULE=on + +script: + - go test -v -covermode=atomic -coverprofile=coverage.out + +after_success: + - bash <(curl -s https://codecov.io/bash) + +notifications: + webhooks: + urls: + - https://webhooks.gitter.im/e/acc2c57482e94b44f557 + on_success: change + on_failure: always + on_start: false diff --git a/vendor/github.com/gin-contrib/cors/LICENSE b/vendor/github.com/gin-contrib/cors/LICENSE new file mode 100644 index 000000000..4e2cfb015 --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2016 Gin-Gonic + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/gin-contrib/cors/README.md b/vendor/github.com/gin-contrib/cors/README.md new file mode 100644 index 000000000..bd567b10b --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/README.md @@ -0,0 +1,91 @@ +# CORS gin's middleware + +[](https://travis-ci.org/gin-contrib/cors) +[](https://codecov.io/gh/gin-contrib/cors) +[](https://goreportcard.com/report/github.com/gin-contrib/cors) +[](https://godoc.org/github.com/gin-contrib/cors) +[](https://gitter.im/gin-gonic/gin) + +Gin middleware/handler to enable CORS support. + +## Usage + +### Start using it + +Download and install it: + +```sh +$ go get github.com/gin-contrib/cors +``` + +Import it in your code: + +```go +import "github.com/gin-contrib/cors" +``` + +### Canonical example: + +```go +package main + +import ( + "time" + + "github.com/gin-contrib/cors" + "github.com/gin-gonic/gin" +) + +func main() { + router := gin.Default() + // CORS for https://foo.com and https://github.com origins, allowing: + // - PUT and PATCH methods + // - Origin header + // - Credentials share + // - Preflight requests cached for 12 hours + router.Use(cors.New(cors.Config{ + AllowOrigins: []string{"https://foo.com"}, + AllowMethods: []string{"PUT", "PATCH"}, + AllowHeaders: []string{"Origin"}, + ExposeHeaders: []string{"Content-Length"}, + AllowCredentials: true, + AllowOriginFunc: func(origin string) bool { + return origin == "https://github.com" + }, + MaxAge: 12 * time.Hour, + })) + router.Run() +} +``` + +### Using DefaultConfig as start point + +```go +func main() { + router := gin.Default() + // - No origin allowed by default + // - GET,POST, PUT, HEAD methods + // - Credentials share disabled + // - Preflight requests cached for 12 hours + config := cors.DefaultConfig() + config.AllowOrigins = []string{"http://google.com"} + // config.AllowOrigins == []string{"http://google.com", "http://facebook.com"} + + router.Use(cors.New(config)) + router.Run() +} +``` + +### Default() allows all origins + +```go +func main() { + router := gin.Default() + // same as + // config := cors.DefaultConfig() + // config.AllowAllOrigins = true + // router.Use(cors.New(config)) + router.Use(cors.Default()) + router.Run() +} +``` diff --git a/vendor/github.com/gin-contrib/cors/config.go b/vendor/github.com/gin-contrib/cors/config.go new file mode 100644 index 000000000..d4fc11801 --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/config.go @@ -0,0 +1,134 @@ +package cors + +import ( + "net/http" + "strings" + + "github.com/gin-gonic/gin" +) + +type cors struct { + allowAllOrigins bool + allowCredentials bool + allowOriginFunc func(string) bool + allowOrigins []string + exposeHeaders []string + normalHeaders http.Header + preflightHeaders http.Header + wildcardOrigins [][]string +} + +var ( + DefaultSchemas = []string{ + "http://", + "https://", + } + ExtensionSchemas = []string{ + "chrome-extension://", + "safari-extension://", + "moz-extension://", + "ms-browser-extension://", + } + FileSchemas = []string{ + "file://", + } + WebSocketSchemas = []string{ + "ws://", + "wss://", + } +) + +func newCors(config Config) *cors { + if err := config.Validate(); err != nil { + panic(err.Error()) + } + + return &cors{ + allowOriginFunc: config.AllowOriginFunc, + allowAllOrigins: config.AllowAllOrigins, + allowCredentials: config.AllowCredentials, + allowOrigins: normalize(config.AllowOrigins), + normalHeaders: generateNormalHeaders(config), + preflightHeaders: generatePreflightHeaders(config), + wildcardOrigins: config.parseWildcardRules(), + } +} + +func (cors *cors) applyCors(c *gin.Context) { + origin := c.Request.Header.Get("Origin") + if len(origin) == 0 { + // request is not a CORS request + return + } + host := c.Request.Host + + if origin == "http://"+host || origin == "https://"+host { + // request is not a CORS request but have origin header. + // for example, use fetch api + return + } + + if !cors.validateOrigin(origin) { + c.AbortWithStatus(http.StatusForbidden) + return + } + + if c.Request.Method == "OPTIONS" { + cors.handlePreflight(c) + defer c.AbortWithStatus(http.StatusNoContent) // Using 204 is better than 200 when the request status is OPTIONS + } else { + cors.handleNormal(c) + } + + if !cors.allowAllOrigins { + c.Header("Access-Control-Allow-Origin", origin) + } +} + +func (cors *cors) validateWildcardOrigin(origin string) bool { + for _, w := range cors.wildcardOrigins { + if w[0] == "*" && strings.HasSuffix(origin, w[1]) { + return true + } + if w[1] == "*" && strings.HasPrefix(origin, w[0]) { + return true + } + if strings.HasPrefix(origin, w[0]) && strings.HasSuffix(origin, w[1]) { + return true + } + } + + return false +} + +func (cors *cors) validateOrigin(origin string) bool { + if cors.allowAllOrigins { + return true + } + for _, value := range cors.allowOrigins { + if value == origin { + return true + } + } + if len(cors.wildcardOrigins) > 0 && cors.validateWildcardOrigin(origin) { + return true + } + if cors.allowOriginFunc != nil { + return cors.allowOriginFunc(origin) + } + return false +} + +func (cors *cors) handlePreflight(c *gin.Context) { + header := c.Writer.Header() + for key, value := range cors.preflightHeaders { + header[key] = value + } +} + +func (cors *cors) handleNormal(c *gin.Context) { + header := c.Writer.Header() + for key, value := range cors.normalHeaders { + header[key] = value + } +} diff --git a/vendor/github.com/gin-contrib/cors/cors.go b/vendor/github.com/gin-contrib/cors/cors.go new file mode 100644 index 000000000..d6d06de03 --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/cors.go @@ -0,0 +1,171 @@ +package cors + +import ( + "errors" + "strings" + "time" + + "github.com/gin-gonic/gin" +) + +// Config represents all available options for the middleware. +type Config struct { + AllowAllOrigins bool + + // AllowOrigins is a list of origins a cross-domain request can be executed from. + // If the special "*" value is present in the list, all origins will be allowed. + // Default value is [] + AllowOrigins []string + + // AllowOriginFunc is a custom function to validate the origin. It take the origin + // as argument and returns true if allowed or false otherwise. If this option is + // set, the content of AllowOrigins is ignored. + AllowOriginFunc func(origin string) bool + + // AllowMethods is a list of methods the client is allowed to use with + // cross-domain requests. Default value is simple methods (GET and POST) + AllowMethods []string + + // AllowHeaders is list of non simple headers the client is allowed to use with + // cross-domain requests. + AllowHeaders []string + + // AllowCredentials indicates whether the request can include user credentials like + // cookies, HTTP authentication or client side SSL certificates. + AllowCredentials bool + + // ExposedHeaders indicates which headers are safe to expose to the API of a CORS + // API specification + ExposeHeaders []string + + // MaxAge indicates how long (in seconds) the results of a preflight request + // can be cached + MaxAge time.Duration + + // Allows to add origins like http://some-domain/*, https://api.* or http://some.*.subdomain.com + AllowWildcard bool + + // Allows usage of popular browser extensions schemas + AllowBrowserExtensions bool + + // Allows usage of WebSocket protocol + AllowWebSockets bool + + // Allows usage of file:// schema (dangerous!) use it only when you 100% sure it's needed + AllowFiles bool +} + +// AddAllowMethods is allowed to add custom methods +func (c *Config) AddAllowMethods(methods ...string) { + c.AllowMethods = append(c.AllowMethods, methods...) +} + +// AddAllowHeaders is allowed to add custom headers +func (c *Config) AddAllowHeaders(headers ...string) { + c.AllowHeaders = append(c.AllowHeaders, headers...) +} + +// AddExposeHeaders is allowed to add custom expose headers +func (c *Config) AddExposeHeaders(headers ...string) { + c.ExposeHeaders = append(c.ExposeHeaders, headers...) +} + +func (c Config) getAllowedSchemas() []string { + allowedSchemas := DefaultSchemas + if c.AllowBrowserExtensions { + allowedSchemas = append(allowedSchemas, ExtensionSchemas...) + } + if c.AllowWebSockets { + allowedSchemas = append(allowedSchemas, WebSocketSchemas...) + } + if c.AllowFiles { + allowedSchemas = append(allowedSchemas, FileSchemas...) + } + return allowedSchemas +} + +func (c Config) validateAllowedSchemas(origin string) bool { + allowedSchemas := c.getAllowedSchemas() + for _, schema := range allowedSchemas { + if strings.HasPrefix(origin, schema) { + return true + } + } + return false +} + +// Validate is check configuration of user defined. +func (c *Config) Validate() error { + if c.AllowAllOrigins && (c.AllowOriginFunc != nil || len(c.AllowOrigins) > 0) { + return errors.New("conflict settings: all origins are allowed. AllowOriginFunc or AllowOrigins is not needed") + } + if !c.AllowAllOrigins && c.AllowOriginFunc == nil && len(c.AllowOrigins) == 0 { + return errors.New("conflict settings: all origins disabled") + } + for _, origin := range c.AllowOrigins { + if origin == "*" { + c.AllowAllOrigins = true + return nil + } else if !strings.Contains(origin, "*") && !c.validateAllowedSchemas(origin) { + return errors.New("bad origin: origins must contain '*' or include " + strings.Join(c.getAllowedSchemas(), ",")) + } + } + return nil +} + +func (c Config) parseWildcardRules() [][]string { + var wRules [][]string + + if !c.AllowWildcard { + return wRules + } + + for _, o := range c.AllowOrigins { + if !strings.Contains(o, "*") { + continue + } + + if c := strings.Count(o, "*"); c > 1 { + panic(errors.New("only one * is allowed").Error()) + } + + i := strings.Index(o, "*") + if i == 0 { + wRules = append(wRules, []string{"*", o[1:]}) + continue + } + if i == (len(o) - 1) { + wRules = append(wRules, []string{o[:i-1], "*"}) + continue + } + + wRules = append(wRules, []string{o[:i], o[i+1:]}) + } + + return wRules +} + +// DefaultConfig returns a generic default configuration mapped to localhost. +func DefaultConfig() Config { + return Config{ + AllowMethods: []string{"GET", "POST", "PUT", "PATCH", "DELETE", "HEAD"}, + AllowHeaders: []string{"Origin", "Content-Length", "Content-Type"}, + AllowCredentials: false, + MaxAge: 12 * time.Hour, + } +} + +// Default returns the location middleware with default configuration. +func Default() gin.HandlerFunc { + config := DefaultConfig() + config.AllowAllOrigins = true + return New(config) +} + +// New returns the location middleware with user-defined custom configuration. +func New(config Config) gin.HandlerFunc { + cors := newCors(config) + return func(c *gin.Context) { + cors.applyCors(c) + } +} diff --git a/vendor/github.com/gin-contrib/cors/go.mod b/vendor/github.com/gin-contrib/cors/go.mod new file mode 100644 index 000000000..9981c4576 --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/go.mod @@ -0,0 +1,10 @@ +module github.com/gin-contrib/cors + +go 1.13 + +require ( + github.com/gin-gonic/gin v1.5.0 + github.com/kr/pretty v0.1.0 // indirect + github.com/stretchr/testify v1.4.0 + gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect +) diff --git a/vendor/github.com/gin-contrib/cors/go.sum b/vendor/github.com/gin-contrib/cors/go.sum new file mode 100644 index 000000000..8da9e75db --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/go.sum @@ -0,0 +1,52 @@ +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE= +github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI= +github.com/gin-gonic/gin v1.5.0 h1:fi+bqFAx/oLK54somfCtEZs9HeH1LHVoEPUgARpTqyc= +github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmCsR2Do= +github.com/go-playground/locales v0.12.1 h1:2FITxuFt/xuCNP1Acdhv62OzaCiviiE4kotfhkmOqEc= +github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM= +github.com/go-playground/universal-translator v0.16.0 h1:X++omBR/4cE2MNg91AoC3rmGrCjJ8eAeUP/K/EKx4DM= +github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY= +github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs= +github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= +github.com/json-iterator/go v1.1.7 h1:KfgG9LzI+pYjr4xvmz/5H4FXjokeP+rlHLhv3iH62Fo= +github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4= +github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI= +github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= +github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= +github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= +github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= +github.com/leodido/go-urn v1.1.0 h1:Sm1gr51B1kKyfD2BlRcLSiEkffoG96g6TPv6eRoEiB8= +github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw= +github.com/mattn/go-isatty v0.0.9 h1:d5US/mDsogSGW37IV293h//ZFaeajb69h+EHFsv2xGg= +github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc= +github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= +github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg= +github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk= +github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/ugorji/go v1.1.7 h1:/68gy2h+1mWMrwZFeD1kQialdSzAb432dtpeJ42ovdo= +github.com/ugorji/go v1.1.7/go.mod h1:kZn38zHttfInRq0xu/PH0az30d+z6vm202qpg1oXVMw= +github.com/ugorji/go/codec v1.1.7 h1:2SvQaVZ1ouYrrKKwoSk2pzd4A9evlKJb9oTL+OaLUSs= +github.com/ugorji/go/codec v1.1.7/go.mod h1:Ax+UKWsSmolVDwsd+7N3ZtXu+yMGCf907BLYF3GoBXY= +golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a h1:aYOabOQFp6Vj6W1F80affTUvO9UxmJRx8K0gsfABByQ= +golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= +gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/go-playground/assert.v1 v1.2.1 h1:xoYuJVE7KT85PYWrN730RguIQO0ePzVRfFMXadIrXTM= +gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE= +gopkg.in/go-playground/validator.v9 v9.29.1 h1:SvGtYmN60a5CVKTOzMSyfzWDeZRxRuGvRQyEAKbw1xc= +gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ= +gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= diff --git a/vendor/github.com/gin-contrib/cors/utils.go b/vendor/github.com/gin-contrib/cors/utils.go new file mode 100644 index 000000000..460ef1780 --- /dev/null +++ b/vendor/github.com/gin-contrib/cors/utils.go @@ -0,0 +1,85 @@ +package cors + +import ( + "net/http" + "strconv" + "strings" + "time" +) + +type converter func(string) string + +func generateNormalHeaders(c Config) http.Header { + headers := make(http.Header) + if c.AllowCredentials { + headers.Set("Access-Control-Allow-Credentials", "true") + } + if len(c.ExposeHeaders) > 0 { + exposeHeaders := convert(normalize(c.ExposeHeaders), http.CanonicalHeaderKey) + headers.Set("Access-Control-Expose-Headers", strings.Join(exposeHeaders, ",")) + } + if c.AllowAllOrigins { + headers.Set("Access-Control-Allow-Origin", "*") + } else { + headers.Set("Vary", "Origin") + } + return headers +} + +func generatePreflightHeaders(c Config) http.Header { + headers := make(http.Header) + if c.AllowCredentials { + headers.Set("Access-Control-Allow-Credentials", "true") + } + if len(c.AllowMethods) > 0 { + allowMethods := convert(normalize(c.AllowMethods), strings.ToUpper) + value := strings.Join(allowMethods, ",") + headers.Set("Access-Control-Allow-Methods", value) + } + if len(c.AllowHeaders) > 0 { + allowHeaders := convert(normalize(c.AllowHeaders), http.CanonicalHeaderKey) + value := strings.Join(allowHeaders, ",") + headers.Set("Access-Control-Allow-Headers", value) + } + if c.MaxAge > time.Duration(0) { + value := strconv.FormatInt(int64(c.MaxAge/time.Second), 10) + headers.Set("Access-Control-Max-Age", value) + } + if c.AllowAllOrigins { + headers.Set("Access-Control-Allow-Origin", "*") + } else { + // Always set Vary headers + // see https://github.com/rs/cors/issues/10, + // https://github.com/rs/cors/commit/dbdca4d95feaa7511a46e6f1efb3b3aa505bc43f#commitcomment-12352001 + + headers.Add("Vary", "Origin") + headers.Add("Vary", "Access-Control-Request-Method") + headers.Add("Vary", "Access-Control-Request-Headers") + } + return headers +} + +func normalize(values []string) []string { + if values == nil { + return nil + } + distinctMap := make(map[string]bool, len(values)) + normalized := make([]string, 0, len(values)) + for _, value := range values { + value = strings.TrimSpace(value) + value = strings.ToLower(value) + if _, seen := distinctMap[value]; !seen { + normalized = append(normalized, value) + distinctMap[value] = true + } + } + return normalized +} + +func convert(s []string, c converter) []string { + var out []string + for _, i := range s { + out = append(out, c(i)) + } + return out +} diff --git a/vendor/github.com/gin-contrib/sessions/.gitignore b/vendor/github.com/gin-contrib/sessions/.gitignore new file mode 100644 index 000000000..5d32c7593 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/.gitignore @@ -0,0 +1,3 @@ +coverage.out +vendor/* +!/vendor/vendor.json diff --git a/vendor/github.com/gin-contrib/sessions/.travis.yml b/vendor/github.com/gin-contrib/sessions/.travis.yml new file mode 100644 index 000000000..85e4724e9 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/.travis.yml @@ -0,0 +1,44 @@ +language: go +sudo: false + +matrix: + fast_finish: true + include: + - go: 1.10.x + - go: 1.11.x + env: GO111MODULE=on + - go: 1.12.x + env: GO111MODULE=on + - go: 1.13.x + - go: master + env: GO111MODULE=on + +git: + depth: 10 + +services: + - redis + - memcached + - mongodb + +before_install: + - go get github.com/campoy/embedmd + +install: + - if [[ "${GO111MODULE}" = "on" ]]; then go mod download; else go get -t -v .; fi + - if [[ "${GO111MODULE}" = "on" ]]; then export PATH="${GOPATH}/bin:${GOROOT}/bin:${PATH}"; fi + +script: + - embedmd -d *.md + - go test -v -covermode=atomic -coverprofile=coverage.out ./... + +after_success: + - bash <(curl -s https://codecov.io/bash) + +notifications: + webhooks: + urls: + - https://webhooks.gitter.im/e/acc2c57482e94b44f557 + on_success: change + on_failure: always + on_start: false diff --git a/vendor/github.com/gin-contrib/sessions/LICENSE b/vendor/github.com/gin-contrib/sessions/LICENSE new file mode 100644 index 000000000..4e2cfb015 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2016 Gin-Gonic + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/gin-contrib/sessions/README.md b/vendor/github.com/gin-contrib/sessions/README.md new file mode 100644 index 000000000..94e445250 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/README.md @@ -0,0 +1,329 @@ +# sessions + +[](https://travis-ci.org/gin-contrib/sessions) +[](https://codecov.io/gh/gin-contrib/sessions) +[](https://goreportcard.com/report/github.com/gin-contrib/sessions) +[](https://godoc.org/github.com/gin-contrib/sessions) +[](https://gitter.im/gin-gonic/gin) + +Gin middleware for session management with multi-backend support: + +- [cookie-based](#cookie-based) +- [Redis](#redis) +- [memcached](#memcached) +- [MongoDB](#mongodb) +- [memstore](#memstore) + +## Usage + +### Start using it + +Download and install it: + +```bash +$ go get github.com/gin-contrib/sessions +``` + +Import it in your code: + +```go +import "github.com/gin-contrib/sessions" +``` + +## Basic Examples + +### single session + +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/cookie" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store := cookie.NewStore([]byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/hello", func(c *gin.Context) { + session := sessions.Default(c) + + if session.Get("hello") != "world" { + session.Set("hello", "world") + session.Save() + } + + c.JSON(200, gin.H{"hello": session.Get("hello")}) + }) + r.Run(":8000") +} +``` + +### multiple sessions + +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/cookie" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store := cookie.NewStore([]byte("secret")) + sessionNames := []string{"a", "b"} + r.Use(sessions.SessionsMany(sessionNames, store)) + + r.GET("/hello", func(c *gin.Context) { + sessionA := sessions.DefaultMany(c, "a") + sessionB := sessions.DefaultMany(c, "b") + + if sessionA.Get("hello") != "world!" { + sessionA.Set("hello", "world!") + sessionA.Save() + } + + if sessionB.Get("hello") != "world?" { + sessionB.Set("hello", "world?") + sessionB.Save() + } + + c.JSON(200, gin.H{ + "a": sessionA.Get("hello"), + "b": sessionB.Get("hello"), + }) + }) + r.Run(":8000") +} +``` + +## Backend examples + +### cookie-based + +[embedmd]:# (example/cookie/main.go go) +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/cookie" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store := cookie.NewStore([]byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + +### Redis + +[embedmd]:# (example/redis/main.go go) +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/redis" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store, _ := redis.NewStore(10, "tcp", "localhost:6379", "", []byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + +### Memcached + +#### ASCII Protocol + +[embedmd]:# (example/memcached/ascii.go go) +```go +package main + +import ( + "github.com/bradfitz/gomemcache/memcache" + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/memcached" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store := memcached.NewStore(memcache.New("localhost:11211"), "", []byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + +#### Binary protocol (with optional SASL authentication) + +[embedmd]:# (example/memcached/binary.go go) +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/memcached" + "github.com/gin-gonic/gin" + "github.com/memcachier/mc" +) + +func main() { + r := gin.Default() + client := mc.NewMC("localhost:11211", "username", "password") + store := memcached.NewMemcacheStore(client, "", []byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + +### MongoDB + +[embedmd]:# (example/mongo/main.go go) +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/mongo" + "github.com/gin-gonic/gin" + "github.com/globalsign/mgo" +) + +func main() { + r := gin.Default() + session, err := mgo.Dial("localhost:27017/test") + if err != nil { + // handle err + } + + c := session.DB("").C("sessions") + store := mongo.NewStore(c, 3600, true, []byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + +### memstore + +[embedmd]:# (example/memstore/main.go go) +```go +package main + +import ( + "github.com/gin-contrib/sessions" + "github.com/gin-contrib/sessions/memstore" + "github.com/gin-gonic/gin" +) + +func main() { + r := gin.Default() + store := memstore.NewStore([]byte("secret")) + r.Use(sessions.Sessions("mysession", store)) + + r.GET("/incr", func(c *gin.Context) { + session := sessions.Default(c) + var count int + v := session.Get("count") + if v == nil { + count = 0 + } else { + count = v.(int) + count++ + } + session.Set("count", count) + session.Save() + c.JSON(200, gin.H{"count": count}) + }) + r.Run(":8000") +} +``` + + diff --git a/vendor/github.com/gin-contrib/sessions/go.mod b/vendor/github.com/gin-contrib/sessions/go.mod new file mode 100644 index 000000000..095ed991b --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/go.mod @@ -0,0 +1,17 @@ +module github.com/gin-contrib/sessions + +go 1.12 + +require ( + github.com/boj/redistore v0.0.0-20180917114910-cd5dcc76aeff + github.com/bradfitz/gomemcache v0.0.0-20190329173943-551aad21a668 + github.com/bradleypeabody/gorilla-sessions-memcache v0.0.0-20181103040241-659414f458e1 + github.com/gin-gonic/gin v1.5.0 + github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8 + github.com/gomodule/redigo v2.0.0+incompatible + github.com/gorilla/context v1.1.1 + github.com/gorilla/sessions v1.1.3 + github.com/kidstuff/mongostore v0.0.0-20181113001930-e650cd85ee4b + github.com/memcachier/mc v2.0.1+incompatible + github.com/quasoft/memstore v0.0.0-20180925164028-84a050167438 +) diff --git a/vendor/github.com/gin-contrib/sessions/go.sum b/vendor/github.com/gin-contrib/sessions/go.sum new file mode 100644 index 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a/vendor/github.com/gin-contrib/sessions/memstore/memstore.go b/vendor/github.com/gin-contrib/sessions/memstore/memstore.go new file mode 100644 index 000000000..8826d6dd4 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/memstore/memstore.go @@ -0,0 +1,31 @@ +package memstore + +import ( + "github.com/gin-contrib/sessions" + "github.com/quasoft/memstore" +) + +type Store interface { + sessions.Store +} + +// Keys are defined in pairs to allow key rotation, but the common case is to set a single +// authentication key and optionally an encryption key. +// +// The first key in a pair is used for authentication and the second for encryption. The +// encryption key can be set to nil or omitted in the last pair, but the authentication key +// is required in all pairs. +// +// It is recommended to use an authentication key with 32 or 64 bytes. The encryption key, +// if set, must be either 16, 24, or 32 bytes to select AES-128, AES-192, or AES-256 modes. +func NewStore(keyPairs ...[]byte) Store { + return &store{memstore.NewMemStore(keyPairs...)} +} + +type store struct { + *memstore.MemStore +} + +func (c *store) Options(options sessions.Options) { + c.MemStore.Options = options.ToGorillaOptions() +} diff --git a/vendor/github.com/gin-contrib/sessions/session_options_go1.10.go b/vendor/github.com/gin-contrib/sessions/session_options_go1.10.go new file mode 100644 index 000000000..623473e8a --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/session_options_go1.10.go @@ -0,0 +1,30 @@ +// +build !go1.11 + +package sessions + +import ( + gsessions "github.com/gorilla/sessions" +) + +// Options stores configuration for a session or session store. +// Fields are a subset of http.Cookie fields. +type Options struct { + Path string + Domain string + // MaxAge=0 means no 'Max-Age' attribute specified. + // MaxAge<0 means delete cookie now, equivalently 'Max-Age: 0'. + // MaxAge>0 means Max-Age attribute present and given in seconds. + MaxAge int + Secure bool + HttpOnly bool +} + +func (options Options) ToGorillaOptions() *gsessions.Options { + return &gsessions.Options{ + Path: options.Path, + Domain: options.Domain, + MaxAge: options.MaxAge, + Secure: options.Secure, + HttpOnly: options.HttpOnly, + } +} diff --git a/vendor/github.com/gin-contrib/sessions/session_options_go1.11.go b/vendor/github.com/gin-contrib/sessions/session_options_go1.11.go new file mode 100644 index 000000000..02b2e5e72 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/session_options_go1.11.go @@ -0,0 +1,36 @@ +// +build go1.11 + +package sessions + +import ( + gsessions "github.com/gorilla/sessions" + "net/http" +) + +// Options stores configuration for a session or session store. +// Fields are a subset of http.Cookie fields. +type Options struct { + Path string + Domain string + // MaxAge=0 means no 'Max-Age' attribute specified. + // MaxAge<0 means delete cookie now, equivalently 'Max-Age: 0'. + // MaxAge>0 means Max-Age attribute present and given in seconds. + MaxAge int + Secure bool + HttpOnly bool + // rfc-draft to preventing CSRF: https://tools.ietf.org/html/draft-west-first-party-cookies-07 + // refer: https://godoc.org/net/http + // https://www.sjoerdlangkemper.nl/2016/04/14/preventing-csrf-with-samesite-cookie-attribute/ + SameSite http.SameSite +} + +func (options Options) ToGorillaOptions() *gsessions.Options { + return &gsessions.Options{ + Path: options.Path, + Domain: options.Domain, + MaxAge: options.MaxAge, + Secure: options.Secure, + HttpOnly: options.HttpOnly, + SameSite: options.SameSite, + } +} diff --git a/vendor/github.com/gin-contrib/sessions/sessions.go b/vendor/github.com/gin-contrib/sessions/sessions.go new file mode 100644 index 000000000..8972e2321 --- /dev/null +++ b/vendor/github.com/gin-contrib/sessions/sessions.go @@ -0,0 +1,145 @@ +package sessions + +import ( + "log" + "net/http" + + "github.com/gin-gonic/gin" + "github.com/gorilla/context" + "github.com/gorilla/sessions" +) + +const ( + DefaultKey = "github.com/gin-contrib/sessions" + errorFormat = "[sessions] ERROR! %s\n" +) + +type Store interface { + sessions.Store + Options(Options) +} + +// Wraps thinly gorilla-session methods. +// Session stores the values and optional configuration for a session. +type Session interface { + // Get returns the session value associated to the given key. + Get(key interface{}) interface{} + // Set sets the session value associated to the given key. + Set(key interface{}, val interface{}) + // Delete removes the session value associated to the given key. + Delete(key interface{}) + // Clear deletes all values in the session. + Clear() + // AddFlash adds a flash message to the session. + // A single variadic argument is accepted, and it is optional: it defines the flash key. + // If not defined "_flash" is used by default. + AddFlash(value interface{}, vars ...string) + // Flashes returns a slice of flash messages from the session. + // A single variadic argument is accepted, and it is optional: it defines the flash key. + // If not defined "_flash" is used by default. + Flashes(vars ...string) []interface{} + // Options sets configuration for a session. + Options(Options) + // Save saves all sessions used during the current request. + Save() error +} + +func Sessions(name string, store Store) gin.HandlerFunc { + return func(c *gin.Context) { + s := &session{name, c.Request, store, nil, false, c.Writer} + c.Set(DefaultKey, s) + defer context.Clear(c.Request) + c.Next() + } +} + +func SessionsMany(names []string, store Store) gin.HandlerFunc { + return func(c *gin.Context) { + sessions := make(map[string]Session, len(names)) + for _, name := range names { + sessions[name] = &session{name, c.Request, store, nil, false, c.Writer} + } + c.Set(DefaultKey, sessions) + defer context.Clear(c.Request) + c.Next() + } +} + +type session struct { + name string + request *http.Request + store Store + session *sessions.Session + written bool + writer http.ResponseWriter +} + +func (s *session) Get(key interface{}) interface{} { + return s.Session().Values[key] +} + +func (s *session) Set(key interface{}, val interface{}) { + s.Session().Values[key] = val + s.written = true +} + +func (s *session) Delete(key interface{}) { + delete(s.Session().Values, key) + s.written = true +} + +func (s *session) Clear() { + for key := range s.Session().Values { + s.Delete(key) + } +} + +func (s *session) AddFlash(value interface{}, vars ...string) { + s.Session().AddFlash(value, vars...) + s.written = true +} + +func (s *session) Flashes(vars ...string) []interface{} { + s.written = true + return s.Session().Flashes(vars...) +} + +func (s *session) Options(options Options) { + s.Session().Options = options.ToGorillaOptions() +} + +func (s *session) Save() error { + if s.Written() { + e := s.Session().Save(s.request, s.writer) + if e == nil { + s.written = false + } + return e + } + return nil +} + +func (s *session) Session() *sessions.Session { + if s.session == nil { + var err error + s.session, err = s.store.Get(s.request, s.name) + if err != nil { + log.Printf(errorFormat, err) + } + } + return s.session +} + +func (s *session) Written() bool { + return s.written +} + +// shortcut to get session +func Default(c *gin.Context) Session { + return c.MustGet(DefaultKey).(Session) +} + +// shortcut to get session with given name +func DefaultMany(c *gin.Context, name string) Session { + return c.MustGet(DefaultKey).(map[string]Session)[name] +} diff --git a/vendor/github.com/gin-contrib/sse/.travis.yml b/vendor/github.com/gin-contrib/sse/.travis.yml new file mode 100644 index 000000000..d0e8fcf99 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/.travis.yml @@ -0,0 +1,26 @@ +language: go +sudo: false +go: + - 1.8.x + - 1.9.x + - 1.10.x + - 1.11.x + - 1.12.x + - master + +git: + depth: 10 + +matrix: + fast_finish: true + include: + - go: 1.11.x + env: GO111MODULE=on + - go: 1.12.x + env: GO111MODULE=on + +script: + - go test -v -covermode=count -coverprofile=coverage.out + +after_success: + - bash <(curl -s https://codecov.io/bash) diff --git a/vendor/github.com/gin-contrib/sse/LICENSE b/vendor/github.com/gin-contrib/sse/LICENSE new file mode 100644 index 000000000..1ff7f3706 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Manuel MartÃnez-Almeida + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/vendor/github.com/gin-contrib/sse/README.md b/vendor/github.com/gin-contrib/sse/README.md new file mode 100644 index 000000000..c9c49cf94 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/README.md @@ -0,0 +1,58 @@ +# Server-Sent Events + +[](https://godoc.org/github.com/gin-contrib/sse) +[](https://travis-ci.org/gin-contrib/sse) +[](https://codecov.io/gh/gin-contrib/sse) +[](https://goreportcard.com/report/github.com/gin-contrib/sse) + +Server-sent events (SSE) is a technology where a browser receives automatic updates from a server via HTTP connection. The Server-Sent Events EventSource API is [standardized as part of HTML5[1] by the W3C](http://www.w3.org/TR/2009/WD-eventsource-20091029/). + +- [Read this great SSE introduction by the HTML5Rocks guys](http://www.html5rocks.com/en/tutorials/eventsource/basics/) +- [Browser support](http://caniuse.com/#feat=eventsource) + +## Sample code + +```go +import "github.com/gin-contrib/sse" + +func httpHandler(w http.ResponseWriter, req *http.Request) { + // data can be a primitive like a string, an integer or a float + sse.Encode(w, sse.Event{ + Event: "message", + Data: "some data\nmore data", + }) + + // also a complex type, like a map, a struct or a slice + sse.Encode(w, sse.Event{ + Id: "124", + Event: "message", + Data: map[string]interface{}{ + "user": "manu", + "date": time.Now().Unix(), + "content": "hi!", + }, + }) +} +``` +``` +event: message +data: some data\\nmore data + +id: 124 +event: message +data: {"content":"hi!","date":1431540810,"user":"manu"} + +``` + +## Content-Type + +```go +fmt.Println(sse.ContentType) +``` +``` +text/event-stream +``` + +## Decoding support + +There is a client-side implementation of SSE coming soon. diff --git a/vendor/github.com/gin-contrib/sse/go.mod b/vendor/github.com/gin-contrib/sse/go.mod new file mode 100644 index 000000000..b9c03f47d --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/go.mod @@ -0,0 +1,5 @@ +module github.com/gin-contrib/sse + +go 1.12 + +require github.com/stretchr/testify v1.3.0 diff --git a/vendor/github.com/gin-contrib/sse/go.sum b/vendor/github.com/gin-contrib/sse/go.sum new file mode 100644 index 000000000..4347755af --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/go.sum @@ -0,0 +1,7 @@ +github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= diff --git a/vendor/github.com/gin-contrib/sse/sse-decoder.go b/vendor/github.com/gin-contrib/sse/sse-decoder.go new file mode 100644 index 000000000..fd49b9c37 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/sse-decoder.go @@ -0,0 +1,116 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package sse + +import ( + "bytes" + "io" + "io/ioutil" +) + +type decoder struct { + events []Event +} + +func Decode(r io.Reader) ([]Event, error) { + var dec decoder + return dec.decode(r) +} + +func (d *decoder) dispatchEvent(event Event, data string) { + dataLength := len(data) + if dataLength > 0 { + //If the data buffer's last character is a U+000A LINE FEED (LF) character, then remove the last character from the data buffer. + data = data[:dataLength-1] + dataLength-- + } + if dataLength == 0 && event.Event == "" { + return + } + if event.Event == "" { + event.Event = "message" + } + event.Data = data + d.events = append(d.events, event) +} + +func (d *decoder) decode(r io.Reader) ([]Event, error) { + buf, err := ioutil.ReadAll(r) + if err != nil { + return nil, err + } + + var currentEvent Event + var dataBuffer *bytes.Buffer = new(bytes.Buffer) + // TODO (and unit tests) + // Lines must be separated by either a U+000D CARRIAGE RETURN U+000A LINE FEED (CRLF) character pair, + // a single U+000A LINE FEED (LF) character, + // or a single U+000D CARRIAGE RETURN (CR) character. + lines := bytes.Split(buf, []byte{'\n'}) + for _, line := range lines { + if len(line) == 0 { + // If the line is empty (a blank line). Dispatch the event. + d.dispatchEvent(currentEvent, dataBuffer.String()) + + // reset current event and data buffer + currentEvent = Event{} + dataBuffer.Reset() + continue + } + if line[0] == byte(':') { + // If the line starts with a U+003A COLON character (:), ignore the line. + continue + } + + var field, value []byte + colonIndex := bytes.IndexRune(line, ':') + if colonIndex != -1 { + // If the line contains a U+003A COLON character character (:) + // Collect the characters on the line before the first U+003A COLON character (:), + // and let field be that string. + field = line[:colonIndex] + // Collect the characters on the line after the first U+003A COLON character (:), + // and let value be that string. + value = line[colonIndex+1:] + // If value starts with a single U+0020 SPACE character, remove it from value. + if len(value) > 0 && value[0] == ' ' { + value = value[1:] + } + } else { + // Otherwise, the string is not empty but does not contain a U+003A COLON character character (:) + // Use the whole line as the field name, and the empty string as the field value. + field = line + value = []byte{} + } + // The steps to process the field given a field name and a field value depend on the field name, + // as given in the following list. Field names must be compared literally, + // with no case folding performed. + switch string(field) { + case "event": + // Set the event name buffer to field value. + currentEvent.Event = string(value) + case "id": + // Set the event stream's last event ID to the field value. + currentEvent.Id = string(value) + case "retry": + // If the field value consists of only characters in the range U+0030 DIGIT ZERO (0) to U+0039 DIGIT NINE (9), + // then interpret the field value as an integer in base ten, and set the event stream's reconnection time to that integer. + // Otherwise, ignore the field. + currentEvent.Id = string(value) + case "data": + // Append the field value to the data buffer, + dataBuffer.Write(value) + // then append a single U+000A LINE FEED (LF) character to the data buffer. + dataBuffer.WriteString("\n") + default: + //Otherwise. The field is ignored. + continue + } + } + // Once the end of the file is reached, the user agent must dispatch the event one final time. + d.dispatchEvent(currentEvent, dataBuffer.String()) + + return d.events, nil +} diff --git a/vendor/github.com/gin-contrib/sse/sse-encoder.go b/vendor/github.com/gin-contrib/sse/sse-encoder.go new file mode 100644 index 000000000..f9c808750 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/sse-encoder.go @@ -0,0 +1,110 @@ +// Copyright 2014 Manu Martinez-Almeida. All rights reserved. +// Use of this source code is governed by a MIT style +// license that can be found in the LICENSE file. + +package sse + +import ( + "encoding/json" + "fmt" + "io" + "net/http" + "reflect" + "strconv" + "strings" +) + +// Server-Sent Events +// W3C Working Draft 29 October 2009 +// http://www.w3.org/TR/2009/WD-eventsource-20091029/ + +const ContentType = "text/event-stream" + +var contentType = []string{ContentType} +var noCache = []string{"no-cache"} + +var fieldReplacer = strings.NewReplacer( + "\n", "\\n", + "\r", "\\r") + +var dataReplacer = strings.NewReplacer( + "\n", "\ndata:", + "\r", "\\r") + +type Event struct { + Event string + Id string + Retry uint + Data interface{} +} + +func Encode(writer io.Writer, event Event) error { + w := checkWriter(writer) + writeId(w, event.Id) + writeEvent(w, event.Event) + writeRetry(w, event.Retry) + return writeData(w, event.Data) +} + +func writeId(w stringWriter, id string) { + if len(id) > 0 { + w.WriteString("id:") + fieldReplacer.WriteString(w, id) + w.WriteString("\n") + } +} + +func writeEvent(w stringWriter, event string) { + if len(event) > 0 { + w.WriteString("event:") + fieldReplacer.WriteString(w, event) + w.WriteString("\n") + } +} + +func writeRetry(w stringWriter, retry uint) { + if retry > 0 { + w.WriteString("retry:") + w.WriteString(strconv.FormatUint(uint64(retry), 10)) + w.WriteString("\n") + } +} + +func writeData(w stringWriter, data interface{}) error { + w.WriteString("data:") + switch kindOfData(data) { + case reflect.Struct, reflect.Slice, reflect.Map: + err := json.NewEncoder(w).Encode(data) + if err != nil { + return err + } + w.WriteString("\n") + default: + dataReplacer.WriteString(w, fmt.Sprint(data)) + w.WriteString("\n\n") + } + return nil +} + +func (r Event) Render(w http.ResponseWriter) error { + r.WriteContentType(w) + return Encode(w, r) +} + +func (r Event) WriteContentType(w http.ResponseWriter) { + header := w.Header() + header["Content-Type"] = contentType + + if _, exist := header["Cache-Control"]; !exist { + header["Cache-Control"] = noCache + } +} + +func kindOfData(data interface{}) reflect.Kind { + value := reflect.ValueOf(data) + valueType := value.Kind() + if valueType == reflect.Ptr { + valueType = value.Elem().Kind() + } + return valueType +} diff --git a/vendor/github.com/gin-contrib/sse/writer.go b/vendor/github.com/gin-contrib/sse/writer.go new file mode 100644 index 000000000..6f9806c55 --- /dev/null +++ b/vendor/github.com/gin-contrib/sse/writer.go @@ -0,0 +1,24 @@ +package sse + +import "io" + +type stringWriter interface { + io.Writer + WriteString(string) (int, error) +} + +type stringWrapper struct { + io.Writer +} + +func (w stringWrapper) WriteString(str string) (int, error) { + return w.Writer.Write([]byte(str)) +} + +func checkWriter(writer io.Writer) stringWriter { + if w, ok := writer.(stringWriter); ok { + return w + } else { + return stringWrapper{writer} + } +} |