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author | Wim <wim@42.be> | 2019-01-31 17:06:36 +0100 |
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committer | Wim <wim@42.be> | 2019-01-31 17:06:36 +0100 |
commit | c81c0dd22a7779148c4890cfd4bbf490054f06f1 (patch) | |
tree | 06ce6fcdc8f3a2278a2f3050ba42088dd2e64485 /vendor/github.com/labstack/echo/middleware/cors.go | |
parent | f8a1ab4622a5b833282e9ee42f382451d17c1a06 (diff) | |
download | matterbridge-msglm-c81c0dd22a7779148c4890cfd4bbf490054f06f1.tar.gz matterbridge-msglm-c81c0dd22a7779148c4890cfd4bbf490054f06f1.tar.bz2 matterbridge-msglm-c81c0dd22a7779148c4890cfd4bbf490054f06f1.zip |
Update vendor, move to labstack/echo/v4 Fixes #698
Diffstat (limited to 'vendor/github.com/labstack/echo/middleware/cors.go')
-rw-r--r-- | vendor/github.com/labstack/echo/middleware/cors.go | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/vendor/github.com/labstack/echo/middleware/cors.go b/vendor/github.com/labstack/echo/middleware/cors.go deleted file mode 100644 index 771000a5..00000000 --- a/vendor/github.com/labstack/echo/middleware/cors.go +++ /dev/null @@ -1,139 +0,0 @@ -package middleware - -import ( - "net/http" - "strconv" - "strings" - - "github.com/labstack/echo" -) - -type ( - // CORSConfig defines the config for CORS middleware. - CORSConfig struct { - // Skipper defines a function to skip middleware. - Skipper Skipper - - // AllowOrigin defines a list of origins that may access the resource. - // Optional. Default value []string{"*"}. - AllowOrigins []string `yaml:"allow_origins"` - - // AllowMethods defines a list methods allowed when accessing the resource. - // This is used in response to a preflight request. - // Optional. Default value DefaultCORSConfig.AllowMethods. - AllowMethods []string `yaml:"allow_methods"` - - // AllowHeaders defines a list of request headers that can be used when - // making the actual request. This in response to a preflight request. - // Optional. Default value []string{}. - AllowHeaders []string `yaml:"allow_headers"` - - // AllowCredentials indicates whether or not the response to the request - // can be exposed when the credentials flag is true. When used as part of - // a response to a preflight request, this indicates whether or not the - // actual request can be made using credentials. - // Optional. Default value false. - AllowCredentials bool `yaml:"allow_credentials"` - - // ExposeHeaders defines a whitelist headers that clients are allowed to - // access. - // Optional. Default value []string{}. - ExposeHeaders []string `yaml:"expose_headers"` - - // MaxAge indicates how long (in seconds) the results of a preflight request - // can be cached. - // Optional. Default value 0. - MaxAge int `yaml:"max_age"` - } -) - -var ( - // DefaultCORSConfig is the default CORS middleware config. - DefaultCORSConfig = CORSConfig{ - Skipper: DefaultSkipper, - AllowOrigins: []string{"*"}, - AllowMethods: []string{echo.GET, echo.HEAD, echo.PUT, echo.PATCH, echo.POST, echo.DELETE}, - } -) - -// CORS returns a Cross-Origin Resource Sharing (CORS) middleware. -// See: https://developer.mozilla.org/en/docs/Web/HTTP/Access_control_CORS -func CORS() echo.MiddlewareFunc { - return CORSWithConfig(DefaultCORSConfig) -} - -// CORSWithConfig returns a CORS middleware with config. -// See: `CORS()`. -func CORSWithConfig(config CORSConfig) echo.MiddlewareFunc { - // Defaults - if config.Skipper == nil { - config.Skipper = DefaultCORSConfig.Skipper - } - if len(config.AllowOrigins) == 0 { - config.AllowOrigins = DefaultCORSConfig.AllowOrigins - } - if len(config.AllowMethods) == 0 { - config.AllowMethods = DefaultCORSConfig.AllowMethods - } - - allowMethods := strings.Join(config.AllowMethods, ",") - allowHeaders := strings.Join(config.AllowHeaders, ",") - exposeHeaders := strings.Join(config.ExposeHeaders, ",") - maxAge := strconv.Itoa(config.MaxAge) - - return func(next echo.HandlerFunc) echo.HandlerFunc { - return func(c echo.Context) error { - if config.Skipper(c) { - return next(c) - } - - req := c.Request() - res := c.Response() - origin := req.Header.Get(echo.HeaderOrigin) - allowOrigin := "" - - // Check allowed origins - for _, o := range config.AllowOrigins { - if o == "*" || o == origin { - allowOrigin = o - break - } - } - - // Simple request - if req.Method != echo.OPTIONS { - res.Header().Add(echo.HeaderVary, echo.HeaderOrigin) - res.Header().Set(echo.HeaderAccessControlAllowOrigin, allowOrigin) - if config.AllowCredentials { - res.Header().Set(echo.HeaderAccessControlAllowCredentials, "true") - } - if exposeHeaders != "" { - res.Header().Set(echo.HeaderAccessControlExposeHeaders, exposeHeaders) - } - return next(c) - } - - // Preflight request - res.Header().Add(echo.HeaderVary, echo.HeaderOrigin) - res.Header().Add(echo.HeaderVary, echo.HeaderAccessControlRequestMethod) - res.Header().Add(echo.HeaderVary, echo.HeaderAccessControlRequestHeaders) - res.Header().Set(echo.HeaderAccessControlAllowOrigin, allowOrigin) - res.Header().Set(echo.HeaderAccessControlAllowMethods, allowMethods) - if config.AllowCredentials { - res.Header().Set(echo.HeaderAccessControlAllowCredentials, "true") - } - if allowHeaders != "" { - res.Header().Set(echo.HeaderAccessControlAllowHeaders, allowHeaders) - } else { - h := req.Header.Get(echo.HeaderAccessControlRequestHeaders) - if h != "" { - res.Header().Set(echo.HeaderAccessControlAllowHeaders, h) - } - } - if config.MaxAge > 0 { - res.Header().Set(echo.HeaderAccessControlMaxAge, maxAge) - } - return c.NoContent(http.StatusNoContent) - } - } -} |