diff options
Diffstat (limited to 'vendor/github.com/gorilla/handlers')
| -rw-r--r-- | vendor/github.com/gorilla/handlers/LICENSE | 22 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/README.md | 55 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/canonical.go | 74 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/compress.go | 148 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/cors.go | 338 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/doc.go | 9 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/handlers.go | 174 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/handlers_go18.go | 21 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/handlers_pre18.go | 7 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/logging.go | 252 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/proxy_headers.go | 120 | ||||
| -rw-r--r-- | vendor/github.com/gorilla/handlers/recovery.go | 91 |
12 files changed, 0 insertions, 1311 deletions
diff --git a/vendor/github.com/gorilla/handlers/LICENSE b/vendor/github.com/gorilla/handlers/LICENSE deleted file mode 100644 index 66ea3c8..0000000 --- a/vendor/github.com/gorilla/handlers/LICENSE +++ /dev/null @@ -1,22 +0,0 @@ -Copyright (c) 2013 The Gorilla Handlers Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - - Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - - Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/gorilla/handlers/README.md b/vendor/github.com/gorilla/handlers/README.md deleted file mode 100644 index 4a6895d..0000000 --- a/vendor/github.com/gorilla/handlers/README.md +++ /dev/null @@ -1,55 +0,0 @@ -gorilla/handlers -================ -[](https://godoc.org/github.com/gorilla/handlers) [](https://travis-ci.org/gorilla/handlers) -[](https://sourcegraph.com/github.com/gorilla/handlers?badge) - - -Package handlers is a collection of handlers (aka "HTTP middleware") for use -with Go's `net/http` package (or any framework supporting `http.Handler`), including: - -* [**LoggingHandler**](https://godoc.org/github.com/gorilla/handlers#LoggingHandler) for logging HTTP requests in the Apache [Common Log - Format](http://httpd.apache.org/docs/2.2/logs.html#common). -* [**CombinedLoggingHandler**](https://godoc.org/github.com/gorilla/handlers#CombinedLoggingHandler) for logging HTTP requests in the Apache [Combined Log - Format](http://httpd.apache.org/docs/2.2/logs.html#combined) commonly used by - both Apache and nginx. -* [**CompressHandler**](https://godoc.org/github.com/gorilla/handlers#CompressHandler) for gzipping responses. -* [**ContentTypeHandler**](https://godoc.org/github.com/gorilla/handlers#ContentTypeHandler) for validating requests against a list of accepted - content types. -* [**MethodHandler**](https://godoc.org/github.com/gorilla/handlers#MethodHandler) for matching HTTP methods against handlers in a - `map[string]http.Handler` -* [**ProxyHeaders**](https://godoc.org/github.com/gorilla/handlers#ProxyHeaders) for populating `r.RemoteAddr` and `r.URL.Scheme` based on the - `X-Forwarded-For`, `X-Real-IP`, `X-Forwarded-Proto` and RFC7239 `Forwarded` - headers when running a Go server behind a HTTP reverse proxy. -* [**CanonicalHost**](https://godoc.org/github.com/gorilla/handlers#CanonicalHost) for re-directing to the preferred host when handling multiple - domains (i.e. multiple CNAME aliases). -* [**RecoveryHandler**](https://godoc.org/github.com/gorilla/handlers#RecoveryHandler) for recovering from unexpected panics. - -Other handlers are documented [on the Gorilla -website](http://www.gorillatoolkit.org/pkg/handlers). - -## Example - -A simple example using `handlers.LoggingHandler` and `handlers.CompressHandler`: - -```go -import ( - "net/http" - "github.com/gorilla/handlers" -) - -func main() { - r := http.NewServeMux() - - // Only log requests to our admin dashboard to stdout - r.Handle("/admin", handlers.LoggingHandler(os.Stdout, http.HandlerFunc(ShowAdminDashboard))) - r.HandleFunc("/", ShowIndex) - - // Wrap our server with our gzip handler to gzip compress all responses. - http.ListenAndServe(":8000", handlers.CompressHandler(r)) -} -``` - -## License - -BSD licensed. See the included LICENSE file for details. - diff --git a/vendor/github.com/gorilla/handlers/canonical.go b/vendor/github.com/gorilla/handlers/canonical.go deleted file mode 100644 index 8437fef..0000000 --- a/vendor/github.com/gorilla/handlers/canonical.go +++ /dev/null @@ -1,74 +0,0 @@ -package handlers - -import ( - "net/http" - "net/url" - "strings" -) - -type canonical struct { - h http.Handler - domain string - code int -} - -// CanonicalHost is HTTP middleware that re-directs requests to the canonical -// domain. It accepts a domain and a status code (e.g. 301 or 302) and -// re-directs clients to this domain. The existing request path is maintained. -// -// Note: If the provided domain is considered invalid by url.Parse or otherwise -// returns an empty scheme or host, clients are not re-directed. -// -// Example: -// -// r := mux.NewRouter() -// canonical := handlers.CanonicalHost("http://www.gorillatoolkit.org", 302) -// r.HandleFunc("/route", YourHandler) -// -// log.Fatal(http.ListenAndServe(":7000", canonical(r))) -// -func CanonicalHost(domain string, code int) func(h http.Handler) http.Handler { - fn := func(h http.Handler) http.Handler { - return canonical{h, domain, code} - } - - return fn -} - -func (c canonical) ServeHTTP(w http.ResponseWriter, r *http.Request) { - dest, err := url.Parse(c.domain) - if err != nil { - // Call the next handler if the provided domain fails to parse. - c.h.ServeHTTP(w, r) - return - } - - if dest.Scheme == "" || dest.Host == "" { - // Call the next handler if the scheme or host are empty. - // Note that url.Parse won't fail on in this case. - c.h.ServeHTTP(w, r) - return - } - - if !strings.EqualFold(cleanHost(r.Host), dest.Host) { - // Re-build the destination URL - dest := dest.Scheme + "://" + dest.Host + r.URL.Path - if r.URL.RawQuery != "" { - dest += "?" + r.URL.RawQuery - } - http.Redirect(w, r, dest, c.code) - return - } - - c.h.ServeHTTP(w, r) -} - -// cleanHost cleans invalid Host headers by stripping anything after '/' or ' '. -// This is backported from Go 1.5 (in response to issue #11206) and attempts to -// mitigate malformed Host headers that do not match the format in RFC7230. -func cleanHost(in string) string { - if i := strings.IndexAny(in, " /"); i != -1 { - return in[:i] - } - return in -} diff --git a/vendor/github.com/gorilla/handlers/compress.go b/vendor/github.com/gorilla/handlers/compress.go deleted file mode 100644 index e8345d7..0000000 --- a/vendor/github.com/gorilla/handlers/compress.go +++ /dev/null @@ -1,148 +0,0 @@ -// Copyright 2013 The Gorilla 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 handlers - -import ( - "compress/flate" - "compress/gzip" - "io" - "net/http" - "strings" -) - -type compressResponseWriter struct { - io.Writer - http.ResponseWriter - http.Hijacker - http.Flusher - http.CloseNotifier -} - -func (w *compressResponseWriter) WriteHeader(c int) { - w.ResponseWriter.Header().Del("Content-Length") - w.ResponseWriter.WriteHeader(c) -} - -func (w *compressResponseWriter) Header() http.Header { - return w.ResponseWriter.Header() -} - -func (w *compressResponseWriter) Write(b []byte) (int, error) { - h := w.ResponseWriter.Header() - if h.Get("Content-Type") == "" { - h.Set("Content-Type", http.DetectContentType(b)) - } - h.Del("Content-Length") - - return w.Writer.Write(b) -} - -type flusher interface { - Flush() error -} - -func (w *compressResponseWriter) Flush() { - // Flush compressed data if compressor supports it. - if f, ok := w.Writer.(flusher); ok { - f.Flush() - } - // Flush HTTP response. - if w.Flusher != nil { - w.Flusher.Flush() - } -} - -// CompressHandler gzip compresses HTTP responses for clients that support it -// via the 'Accept-Encoding' header. -// -// Compressing TLS traffic may leak the page contents to an attacker if the -// page contains user input: http://security.stackexchange.com/a/102015/12208 -func CompressHandler(h http.Handler) http.Handler { - return CompressHandlerLevel(h, gzip.DefaultCompression) -} - -// CompressHandlerLevel gzip compresses HTTP responses with specified compression level -// for clients that support it via the 'Accept-Encoding' header. -// -// The compression level should be gzip.DefaultCompression, gzip.NoCompression, -// or any integer value between gzip.BestSpeed and gzip.BestCompression inclusive. -// gzip.DefaultCompression is used in case of invalid compression level. -func CompressHandlerLevel(h http.Handler, level int) http.Handler { - if level < gzip.DefaultCompression || level > gzip.BestCompression { - level = gzip.DefaultCompression - } - - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - L: - for _, enc := range strings.Split(r.Header.Get("Accept-Encoding"), ",") { - switch strings.TrimSpace(enc) { - case "gzip": - w.Header().Set("Content-Encoding", "gzip") - w.Header().Add("Vary", "Accept-Encoding") - - gw, _ := gzip.NewWriterLevel(w, level) - defer gw.Close() - - h, hok := w.(http.Hijacker) - if !hok { /* w is not Hijacker... oh well... */ - h = nil - } - - f, fok := w.(http.Flusher) - if !fok { - f = nil - } - - cn, cnok := w.(http.CloseNotifier) - if !cnok { - cn = nil - } - - w = &compressResponseWriter{ - Writer: gw, - ResponseWriter: w, - Hijacker: h, - Flusher: f, - CloseNotifier: cn, - } - - break L - case "deflate": - w.Header().Set("Content-Encoding", "deflate") - w.Header().Add("Vary", "Accept-Encoding") - - fw, _ := flate.NewWriter(w, level) - defer fw.Close() - - h, hok := w.(http.Hijacker) - if !hok { /* w is not Hijacker... oh well... */ - h = nil - } - - f, fok := w.(http.Flusher) - if !fok { - f = nil - } - - cn, cnok := w.(http.CloseNotifier) - if !cnok { - cn = nil - } - - w = &compressResponseWriter{ - Writer: fw, - ResponseWriter: w, - Hijacker: h, - Flusher: f, - CloseNotifier: cn, - } - - break L - } - } - - h.ServeHTTP(w, r) - }) -} diff --git a/vendor/github.com/gorilla/handlers/cors.go b/vendor/github.com/gorilla/handlers/cors.go deleted file mode 100644 index 1acf80d..0000000 --- a/vendor/github.com/gorilla/handlers/cors.go +++ /dev/null @@ -1,338 +0,0 @@ -package handlers - -import ( - "net/http" - "strconv" - "strings" -) - -// CORSOption represents a functional option for configuring the CORS middleware. -type CORSOption func(*cors) error - -type cors struct { - h http.Handler - allowedHeaders []string - allowedMethods []string - allowedOrigins []string - allowedOriginValidator OriginValidator - exposedHeaders []string - maxAge int - ignoreOptions bool - allowCredentials bool -} - -// OriginValidator takes an origin string and returns whether or not that origin is allowed. -type OriginValidator func(string) bool - -var ( - defaultCorsMethods = []string{"GET", "HEAD", "POST"} - defaultCorsHeaders = []string{"Accept", "Accept-Language", "Content-Language", "Origin"} - // (WebKit/Safari v9 sends the Origin header by default in AJAX requests) -) - -const ( - corsOptionMethod string = "OPTIONS" - corsAllowOriginHeader string = "Access-Control-Allow-Origin" - corsExposeHeadersHeader string = "Access-Control-Expose-Headers" - corsMaxAgeHeader string = "Access-Control-Max-Age" - corsAllowMethodsHeader string = "Access-Control-Allow-Methods" - corsAllowHeadersHeader string = "Access-Control-Allow-Headers" - corsAllowCredentialsHeader string = "Access-Control-Allow-Credentials" - corsRequestMethodHeader string = "Access-Control-Request-Method" - corsRequestHeadersHeader string = "Access-Control-Request-Headers" - corsOriginHeader string = "Origin" - corsVaryHeader string = "Vary" - corsOriginMatchAll string = "*" -) - -func (ch *cors) ServeHTTP(w http.ResponseWriter, r *http.Request) { - origin := r.Header.Get(corsOriginHeader) - if !ch.isOriginAllowed(origin) { - if r.Method != corsOptionMethod || ch.ignoreOptions { - ch.h.ServeHTTP(w, r) - } - - return - } - - if r.Method == corsOptionMethod { - if ch.ignoreOptions { - ch.h.ServeHTTP(w, r) - return - } - - if _, ok := r.Header[corsRequestMethodHeader]; !ok { - w.WriteHeader(http.StatusBadRequest) - return - } - - method := r.Header.Get(corsRequestMethodHeader) - if !ch.isMatch(method, ch.allowedMethods) { - w.WriteHeader(http.StatusMethodNotAllowed) - return - } - - requestHeaders := strings.Split(r.Header.Get(corsRequestHeadersHeader), ",") - allowedHeaders := []string{} - for _, v := range requestHeaders { - canonicalHeader := http.CanonicalHeaderKey(strings.TrimSpace(v)) - if canonicalHeader == "" || ch.isMatch(canonicalHeader, defaultCorsHeaders) { - continue - } - - if !ch.isMatch(canonicalHeader, ch.allowedHeaders) { - w.WriteHeader(http.StatusForbidden) - return - } - - allowedHeaders = append(allowedHeaders, canonicalHeader) - } - - if len(allowedHeaders) > 0 { - w.Header().Set(corsAllowHeadersHeader, strings.Join(allowedHeaders, ",")) - } - - if ch.maxAge > 0 { - w.Header().Set(corsMaxAgeHeader, strconv.Itoa(ch.maxAge)) - } - - if !ch.isMatch(method, defaultCorsMethods) { - w.Header().Set(corsAllowMethodsHeader, method) - } - } else { - if len(ch.exposedHeaders) > 0 { - w.Header().Set(corsExposeHeadersHeader, strings.Join(ch.exposedHeaders, ",")) - } - } - - if ch.allowCredentials { - w.Header().Set(corsAllowCredentialsHeader, "true") - } - - if len(ch.allowedOrigins) > 1 { - w.Header().Set(corsVaryHeader, corsOriginHeader) - } - - returnOrigin := origin - if ch.allowedOriginValidator == nil && len(ch.allowedOrigins) == 0 { - returnOrigin = "*" - } else { - for _, o := range ch.allowedOrigins { - // A configuration of * is different than explicitly setting an allowed - // origin. Returning arbitrary origin headers in an access control allow - // origin header is unsafe and is not required by any use case. - if o == corsOriginMatchAll { - returnOrigin = "*" - break - } - } - } - w.Header().Set(corsAllowOriginHeader, returnOrigin) - - if r.Method == corsOptionMethod { - return - } - ch.h.ServeHTTP(w, r) -} - -// CORS provides Cross-Origin Resource Sharing middleware. -// Example: -// -// import ( -// "net/http" -// -// "github.com/gorilla/handlers" -// "github.com/gorilla/mux" -// ) -// -// func main() { -// r := mux.NewRouter() -// r.HandleFunc("/users", UserEndpoint) -// r.HandleFunc("/projects", ProjectEndpoint) -// -// // Apply the CORS middleware to our top-level router, with the defaults. -// http.ListenAndServe(":8000", handlers.CORS()(r)) -// } -// -func CORS(opts ...CORSOption) func(http.Handler) http.Handler { - return func(h http.Handler) http.Handler { - ch := parseCORSOptions(opts...) - ch.h = h - return ch - } -} - -func parseCORSOptions(opts ...CORSOption) *cors { - ch := &cors{ - allowedMethods: defaultCorsMethods, - allowedHeaders: defaultCorsHeaders, - allowedOrigins: []string{}, - } - - for _, option := range opts { - option(ch) - } - - return ch -} - -// -// Functional options for configuring CORS. -// - -// AllowedHeaders adds the provided headers to the list of allowed headers in a -// CORS request. -// This is an append operation so the headers Accept, Accept-Language, -// and Content-Language are always allowed. -// Content-Type must be explicitly declared if accepting Content-Types other than -// application/x-www-form-urlencoded, multipart/form-data, or text/plain. -func AllowedHeaders(headers []string) CORSOption { - return func(ch *cors) error { - for _, v := range headers { - normalizedHeader := http.CanonicalHeaderKey(strings.TrimSpace(v)) - if normalizedHeader == "" { - continue - } - - if !ch.isMatch(normalizedHeader, ch.allowedHeaders) { - ch.allowedHeaders = append(ch.allowedHeaders, normalizedHeader) - } - } - - return nil - } -} - -// AllowedMethods can be used to explicitly allow methods in the -// Access-Control-Allow-Methods header. -// This is a replacement operation so you must also -// pass GET, HEAD, and POST if you wish to support those methods. -func AllowedMethods(methods []string) CORSOption { - return func(ch *cors) error { - ch.allowedMethods = []string{} - for _, v := range methods { - normalizedMethod := strings.ToUpper(strings.TrimSpace(v)) - if normalizedMethod == "" { - continue - } - - if !ch.isMatch(normalizedMethod, ch.allowedMethods) { - ch.allowedMethods = append(ch.allowedMethods, normalizedMethod) - } - } - - return nil - } -} - -// AllowedOrigins sets the allowed origins for CORS requests, as used in the -// 'Allow-Access-Control-Origin' HTTP header. -// Note: Passing in a []string{"*"} will allow any domain. -func AllowedOrigins(origins []string) CORSOption { - return func(ch *cors) error { - for _, v := range origins { - if v == corsOriginMatchAll { - ch.allowedOrigins = []string{corsOriginMatchAll} - return nil - } - } - - ch.allowedOrigins = origins - return nil - } -} - -// AllowedOriginValidator sets a function for evaluating allowed origins in CORS requests, represented by the -// 'Allow-Access-Control-Origin' HTTP header. -func AllowedOriginValidator(fn OriginValidator) CORSOption { - return func(ch *cors) error { - ch.allowedOriginValidator = fn - return nil - } -} - -// ExposeHeaders can be used to specify headers that are available -// and will not be stripped out by the user-agent. -func ExposedHeaders(headers []string) CORSOption { - return func(ch *cors) error { - ch.exposedHeaders = []string{} - for _, v := range headers { - normalizedHeader := http.CanonicalHeaderKey(strings.TrimSpace(v)) - if normalizedHeader == "" { - continue - } - - if !ch.isMatch(normalizedHeader, ch.exposedHeaders) { - ch.exposedHeaders = append(ch.exposedHeaders, normalizedHeader) - } - } - - return nil - } -} - -// MaxAge determines the maximum age (in seconds) between preflight requests. A -// maximum of 10 minutes is allowed. An age above this value will default to 10 -// minutes. -func MaxAge(age int) CORSOption { - return func(ch *cors) error { - // Maximum of 10 minutes. - if age > 600 { - age = 600 - } - - ch.maxAge = age - return nil - } -} - -// IgnoreOptions causes the CORS middleware to ignore OPTIONS requests, instead -// passing them through to the next handler. This is useful when your application -// or framework has a pre-existing mechanism for responding to OPTIONS requests. -func IgnoreOptions() CORSOption { - return func(ch *cors) error { - ch.ignoreOptions = true - return nil - } -} - -// AllowCredentials can be used to specify that the user agent may pass -// authentication details along with the request. -func AllowCredentials() CORSOption { - return func(ch *cors) error { - ch.allowCredentials = true - return nil - } -} - -func (ch *cors) isOriginAllowed(origin string) bool { - if origin == "" { - return false - } - - if ch.allowedOriginValidator != nil { - return ch.allowedOriginValidator(origin) - } - - if len(ch.allowedOrigins) == 0 { - return true - } - - for _, allowedOrigin := range ch.allowedOrigins { - if allowedOrigin == origin || allowedOrigin == corsOriginMatchAll { - return true - } - } - - return false -} - -func (ch *cors) isMatch(needle string, haystack []string) bool { - for _, v := range haystack { - if v == needle { - return true - } - } - - return false -} diff --git a/vendor/github.com/gorilla/handlers/doc.go b/vendor/github.com/gorilla/handlers/doc.go deleted file mode 100644 index 944e5a8..0000000 --- a/vendor/github.com/gorilla/handlers/doc.go +++ /dev/null @@ -1,9 +0,0 @@ -/* -Package handlers is a collection of handlers (aka "HTTP middleware") for use -with Go's net/http package (or any framework supporting http.Handler). - -The package includes handlers for logging in standardised formats, compressing -HTTP responses, validating content types and other useful tools for manipulating -requests and responses. -*/ -package handlers diff --git a/vendor/github.com/gorilla/handlers/handlers.go b/vendor/github.com/gorilla/handlers/handlers.go deleted file mode 100644 index d03f2bf..0000000 --- a/vendor/github.com/gorilla/handlers/handlers.go +++ /dev/null @@ -1,174 +0,0 @@ -// Copyright 2013 The Gorilla 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 handlers - -import ( - "bufio" - "fmt" - "net" - "net/http" - "sort" - "strings" -) - -// MethodHandler is an http.Handler that dispatches to a handler whose key in the -// MethodHandler's map matches the name of the HTTP request's method, eg: GET -// -// If the request's method is OPTIONS and OPTIONS is not a key in the map then -// the handler responds with a status of 200 and sets the Allow header to a -// comma-separated list of available methods. -// -// If the request's method doesn't match any of its keys the handler responds -// with a status of HTTP 405 "Method Not Allowed" and sets the Allow header to a -// comma-separated list of available methods. -type MethodHandler map[string]http.Handler - -func (h MethodHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) { - if handler, ok := h[req.Method]; ok { - handler.ServeHTTP(w, req) - } else { - allow := []string{} - for k := range h { - allow = append(allow, k) - } - sort.Strings(allow) - w.Header().Set("Allow", strings.Join(allow, ", ")) - if req.Method == "OPTIONS" { - w.WriteHeader(http.StatusOK) - } else { - http.Error(w, "Method not allowed", http.StatusMethodNotAllowed) - } - } -} - -// responseLogger is wrapper of http.ResponseWriter that keeps track of its HTTP -// status code and body size -type responseLogger struct { - w http.ResponseWriter - status int - size int -} - -func (l *responseLogger) Header() http.Header { - return l.w.Header() -} - -func (l *responseLogger) Write(b []byte) (int, error) { - size, err := l.w.Write(b) - l.size += size - return size, err -} - -func (l *responseLogger) WriteHeader(s int) { - l.w.WriteHeader(s) - l.status = s -} - -func (l *responseLogger) Status() int { - return l.status -} - -func (l *responseLogger) Size() int { - return l.size -} - -func (l *responseLogger) Flush() { - f, ok := l.w.(http.Flusher) - if ok { - f.Flush() - } -} - -type hijackLogger struct { - responseLogger -} - -func (l *hijackLogger) Hijack() (net.Conn, *bufio.ReadWriter, error) { - h := l.responseLogger.w.(http.Hijacker) - conn, rw, err := h.Hijack() - if err == nil && l.responseLogger.status == 0 { - // The status will be StatusSwitchingProtocols if there was no error and - // WriteHeader has not been called yet - l.responseLogger.status = http.StatusSwitchingProtocols - } - return conn, rw, err -} - -type closeNotifyWriter struct { - loggingResponseWriter - http.CloseNotifier -} - -type hijackCloseNotifier struct { - loggingResponseWriter - http.Hijacker - http.CloseNotifier -} - -// isContentType validates the Content-Type header matches the supplied -// contentType. That is, its type and subtype match. -func isContentType(h http.Header, contentType string) bool { - ct := h.Get("Content-Type") - if i := strings.IndexRune(ct, ';'); i != -1 { - ct = ct[0:i] - } - return ct == contentType -} - -// ContentTypeHandler wraps and returns a http.Handler, validating the request -// content type is compatible with the contentTypes list. It writes a HTTP 415 -// error if that fails. -// -// Only PUT, POST, and PATCH requests are considered. -func ContentTypeHandler(h http.Handler, contentTypes ...string) http.Handler { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - if !(r.Method == "PUT" || r.Method == "POST" || r.Method == "PATCH") { - h.ServeHTTP(w, r) - return - } - - for _, ct := range contentTypes { - if isContentType(r.Header, ct) { - h.ServeHTTP(w, r) - return - } - } - http.Error(w, fmt.Sprintf("Unsupported content type %q; expected one of %q", r.Header.Get("Content-Type"), contentTypes), http.StatusUnsupportedMediaType) - }) -} - -const ( - // HTTPMethodOverrideHeader is a commonly used - // http header to override a request method. - HTTPMethodOverrideHeader = "X-HTTP-Method-Override" - // HTTPMethodOverrideFormKey is a commonly used - // HTML form key to override a request method. - HTTPMethodOverrideFormKey = "_method" -) - -// HTTPMethodOverrideHandler wraps and returns a http.Handler which checks for -// the X-HTTP-Method-Override header or the _method form key, and overrides (if -// valid) request.Method with its value. -// -// This is especially useful for HTTP clients that don't support many http verbs. -// It isn't secure to override e.g a GET to a POST, so only POST requests are -// considered. Likewise, the override method can only be a "write" method: PUT, -// PATCH or DELETE. -// -// Form method takes precedence over header method. -func HTTPMethodOverrideHandler(h http.Handler) http.Handler { - return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { - if r.Method == "POST" { - om := r.FormValue(HTTPMethodOverrideFormKey) - if om == "" { - om = r.Header.Get(HTTPMethodOverrideHeader) - } - if om == "PUT" || om == "PATCH" || om == "DELETE" { - r.Method = om - } - } - h.ServeHTTP(w, r) - }) -} diff --git a/vendor/github.com/gorilla/handlers/handlers_go18.go b/vendor/github.com/gorilla/handlers/handlers_go18.go deleted file mode 100644 index 35eb8d4..0000000 --- a/vendor/github.com/gorilla/handlers/handlers_go18.go +++ /dev/null @@ -1,21 +0,0 @@ -// +build go1.8 - -package handlers - -import ( - "fmt" - "net/http" -) - -type loggingResponseWriter interface { - commonLoggingResponseWriter - http.Pusher -} - -func (l *responseLogger) Push(target string, opts *http.PushOptions) error { - p, ok := l.w.(http.Pusher) - if !ok { - return fmt.Errorf("responseLogger does not implement http.Pusher") - } - return p.Push(target, opts) -} diff --git a/vendor/github.com/gorilla/handlers/handlers_pre18.go b/vendor/github.com/gorilla/handlers/handlers_pre18.go deleted file mode 100644 index 197836a..0000000 --- a/vendor/github.com/gorilla/handlers/handlers_pre18.go +++ /dev/null @@ -1,7 +0,0 @@ -// +build !go1.8 - -package handlers - -type loggingResponseWriter interface { - commonLoggingResponseWriter -} diff --git a/vendor/github.com/gorilla/handlers/logging.go b/vendor/github.com/gorilla/handlers/logging.go deleted file mode 100644 index cbd182f..0000000 --- a/vendor/github.com/gorilla/handlers/logging.go +++ /dev/null @@ -1,252 +0,0 @@ -// Copyright 2013 The Gorilla 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 handlers - -import ( - "io" - "net" - "net/http" - "net/url" - "strconv" - "time" - "unicode/utf8" -) - -// Logging - -// FormatterParams is the structure any formatter will be handed when time to log comes -type LogFormatterParams struct { - Request *http.Request - URL url.URL - TimeStamp time.Time - StatusCode int - Size int -} - -// LogFormatter gives the signature of the formatter function passed to CustomLoggingHandler -type LogFormatter func(writer io.Writer, params LogFormatterParams) - -// loggingHandler is the http.Handler implementation for LoggingHandlerTo and its -// friends - -type loggingHandler struct { - writer io.Writer - handler http.Handler - formatter LogFormatter -} - -func (h loggingHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) { - t := time.Now() - logger := makeLogger(w) - url := *req.URL - - h.handler.ServeHTTP(logger, req) - - params := LogFormatterParams{ - Request: req, - URL: url, - TimeStamp: t, - StatusCode: logger.Status(), - Size: logger.Size(), - } - - h.formatter(h.writer, params) -} - -func makeLogger(w http.ResponseWriter) loggingResponseWriter { - var logger loggingResponseWriter = &responseLogger{w: w, status: http.StatusOK} - if _, ok := w.(http.Hijacker); ok { - logger = &hijackLogger{responseLogger{w: w, status: http.StatusOK}} - } - h, ok1 := logger.(http.Hijacker) - c, ok2 := w.(http.CloseNotifier) - if ok1 && ok2 { - return hijackCloseNotifier{logger, h, c} - } - if ok2 { - return &closeNotifyWriter{logger, c} - } - return logger -} - -type commonLoggingResponseWriter interface { - http.ResponseWriter - http.Flusher - Status() int - Size() int -} - -const lowerhex = "0123456789abcdef" - -func appendQuoted(buf []byte, s string) []byte { - var runeTmp [utf8.UTFMax]byte - for width := 0; len(s) > 0; s = s[width:] { - r := rune(s[0]) - width = 1 - if r >= utf8.RuneSelf { - r, width = utf8.DecodeRuneInString(s) - } - if width == 1 && r == utf8.RuneError { - buf = append(buf, `\x`...) - buf = append(buf, lowerhex[s[0]>>4]) - buf = append(buf, lowerhex[s[0]&0xF]) - continue - } - if r == rune('"') || r == '\\' { // always backslashed - buf = append(buf, '\\') - buf = append(buf, byte(r)) - continue - } - if strconv.IsPrint(r) { - n := utf8.EncodeRune(runeTmp[:], r) - buf = append(buf, runeTmp[:n]...) - continue - } - switch r { - case '\a': - buf = append(buf, `\a`...) - case '\b': - buf = append(buf, `\b`...) - case '\f': - buf = append(buf, `\f`...) - case '\n': - buf = append(buf, `\n`...) - case '\r': - buf = append(buf, `\r`...) - case '\t': - buf = append(buf, `\t`...) - case '\v': - buf = append(buf, `\v`...) - default: - switch { - case r < ' ': - buf = append(buf, `\x`...) - buf = append(buf, lowerhex[s[0]>>4]) - buf = append(buf, lowerhex[s[0]&0xF]) - case r > utf8.MaxRune: - r = 0xFFFD - fallthrough - case r < 0x10000: - buf = append(buf, `\u`...) - for s := 12; s >= 0; s -= 4 { - buf = append(buf, lowerhex[r>>uint(s)&0xF]) - } - default: - buf = append(buf, `\U`...) - for s := 28; s >= 0; s -= 4 { - buf = append(buf, lowerhex[r>>uint(s)&0xF]) - } - } - } - } - return buf - -} - -// buildCommonLogLine builds a log entry for req in Apache Common Log Format. -// ts is the timestamp with which the entry should be logged. -// status and size are used to provide the response HTTP status and size. -func buildCommonLogLine(req *http.Request, url url.URL, ts time.Time, status int, size int) []byte { - username := "-" - if url.User != nil { - if name := url.User.Username(); name != "" { - username = name - } - } - - host, _, err := net.SplitHostPort(req.RemoteAddr) - - if err != nil { - host = req.RemoteAddr - } - - uri := req.RequestURI - - // Requests using the CONNECT method over HTTP/2.0 must use - // the authority field (aka r.Host) to identify the target. - // Refer: https://httpwg.github.io/specs/rfc7540.html#CONNECT - if req.ProtoMajor == 2 && req.Method == "CONNECT" { - uri = req.Host - } - if uri == "" { - uri = url.RequestURI() - } - - buf := make([]byte, 0, 3*(len(host)+len(username)+len(req.Method)+len(uri)+len(req.Proto)+50)/2) - buf = append(buf, host...) - buf = append(buf, " - "...) - buf = append(buf, username...) - buf = append(buf, " ["...) - buf = append(buf, ts.Format("02/Jan/2006:15:04:05 -0700")...) - buf = append(buf, `] "`...) - buf = append(buf, req.Method...) - buf = append(buf, " "...) - buf = appendQuoted(buf, uri) - buf = append(buf, " "...) - buf = append(buf, req.Proto...) - buf = append(buf, `" `...) - buf = append(buf, strconv.Itoa(status)...) - buf = append(buf, " "...) - buf = append(buf, strconv.Itoa(size)...) - return buf -} - -// writeLog writes a log entry for req to w in Apache Common Log Format. -// ts is the timestamp with which the entry should be logged. -// status and size are used to provide the response HTTP status and size. -func writeLog(writer io.Writer, params LogFormatterParams) { - buf := buildCommonLogLine(params.Request, params.URL, params.TimeStamp, params.StatusCode, params.Size) - buf = append(buf, '\n') - writer.Write(buf) -} - -// writeCombinedLog writes a log entry for req to w in Apache Combined Log Format. -// ts is the timestamp with which the entry should be logged. -// status and size are used to provide the response HTTP status and size. -func writeCombinedLog(writer io.Writer, params LogFormatterParams) { - buf := buildCommonLogLine(params.Request, params.URL, params.TimeStamp, params.StatusCode, params.Size) - buf = append(buf, ` "`...) - buf = appendQuoted(buf, params.Request.Referer()) - buf = append(buf, `" "`...) - buf = appendQuoted(buf, params.Request.UserAgent()) - buf = append(buf, '"', '\n') - writer.Write(buf) -} - -// CombinedLoggingHandler return a http.Handler that wraps h and logs requests to out in -// Apache Combined Log Format. -// -// See http://httpd.apache.org/docs/2.2/logs.html#combined for a description of this format. -// -// LoggingHandler always sets the ident field of the log to - -func CombinedLoggingHandler(out io.Writer, h http.Handler) http.Handler { - return loggingHandler{out, h, writeCombinedLog} -} - -// LoggingHandler return a http.Handler that wraps h and logs requests to out in -// Apache Common Log Format (CLF). -// -// See http://httpd.apache.org/docs/2.2/logs.html#common for a description of this format. -// -// LoggingHandler always sets the ident field of the log to - -// -// Example: -// -// r := mux.NewRouter() -// r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { -// w.Write([]byte("This is a catch-all route")) -// }) -// loggedRouter := handlers.LoggingHandler(os.Stdout, r) -// http.ListenAndServe(":1123", loggedRouter) -// -func LoggingHandler(out io.Writer, h http.Handler) http.Handler { - return loggingHandler{out, h, writeLog} -} - -// CustomLoggingHandler provides a way to supply a custom log formatter -// while taking advantage of the mechanisms in this package -func CustomLoggingHandler(out io.Writer, h http.Handler, f LogFormatter) http.Handler { - return loggingHandler{out, h, f} -} diff --git a/vendor/github.com/gorilla/handlers/proxy_headers.go b/vendor/github.com/gorilla/handlers/proxy_headers.go deleted file mode 100644 index 0be750f..0000000 --- a/vendor/github.com/gorilla/handlers/proxy_headers.go +++ /dev/null @@ -1,120 +0,0 @@ -package handlers - -import ( - "net/http" - "regexp" - "strings" -) - -var ( - // De-facto standard header keys. - xForwardedFor = http.CanonicalHeaderKey("X-Forwarded-For") - xForwardedHost = http.CanonicalHeaderKey("X-Forwarded-Host") - xForwardedProto = http.CanonicalHeaderKey("X-Forwarded-Proto") - xForwardedScheme = http.CanonicalHeaderKey("X-Forwarded-Scheme") - xRealIP = http.CanonicalHeaderKey("X-Real-IP") -) - -var ( - // RFC7239 defines a new "Forwarded: " header designed to replace the - // existing use of X-Forwarded-* headers. - // e.g. Forwarded: for=192.0.2.60;proto=https;by=203.0.113.43 - forwarded = http.CanonicalHeaderKey("Forwarded") - // Allows for a sub-match of the first value after 'for=' to the next - // comma, semi-colon or space. The match is case-insensitive. - forRegex = regexp.MustCompile(`(?i)(?:for=)([^(;|,| )]+)`) - // Allows for a sub-match for the first instance of scheme (http|https) - // prefixed by 'proto='. The match is case-insensitive. - protoRegex = regexp.MustCompile(`(?i)(?:proto=)(https|http)`) -) - -// ProxyHeaders inspects common reverse proxy headers and sets the corresponding -// fields in the HTTP request struct. These are X-Forwarded-For and X-Real-IP -// for the remote (client) IP address, X-Forwarded-Proto or X-Forwarded-Scheme -// for the scheme (http|https) and the RFC7239 Forwarded header, which may -// include both client IPs and schemes. -// -// NOTE: This middleware should only be used when behind a reverse -// proxy like nginx, HAProxy or Apache. Reverse proxies that don't (or are -// configured not to) strip these headers from client requests, or where these -// headers are accepted "as is" from a remote client (e.g. when Go is not behind -// a proxy), can manifest as a vulnerability if your application uses these -// headers for validating the 'trustworthiness' of a request. -func ProxyHeaders(h http.Handler) http.Handler { - fn := func(w http.ResponseWriter, r *http.Request) { - // Set the remote IP with the value passed from the proxy. - if fwd := getIP(r); fwd != "" { - r.RemoteAddr = fwd - } - - // Set the scheme (proto) with the value passed from the proxy. - if scheme := getScheme(r); scheme != "" { - r.URL.Scheme = scheme - } - // Set the host with the value passed by the proxy - if r.Header.Get(xForwardedHost) != "" { - r.Host = r.Header.Get(xForwardedHost) - } - // Call the next handler in the chain. - h.ServeHTTP(w, r) - } - - return http.HandlerFunc(fn) -} - -// getIP retrieves the IP from the X-Forwarded-For, X-Real-IP and RFC7239 -// Forwarded headers (in that order). -func getIP(r *http.Request) string { - var addr string - - if fwd := r.Header.Get(xForwardedFor); fwd != "" { - // Only grab the first (client) address. Note that '192.168.0.1, - // 10.1.1.1' is a valid key for X-Forwarded-For where addresses after - // the first may represent forwarding proxies earlier in the chain. - s := strings.Index(fwd, ", ") - if s == -1 { - s = len(fwd) - } - addr = fwd[:s] - } else if fwd := r.Header.Get(xRealIP); fwd != "" { - // X-Real-IP should only contain one IP address (the client making the - // request). - addr = fwd - } else if fwd := r.Header.Get(forwarded); fwd != "" { - // match should contain at least two elements if the protocol was - // specified in the Forwarded header. The first element will always be - // the 'for=' capture, which we ignore. In the case of multiple IP - // addresses (for=8.8.8.8, 8.8.4.4,172.16.1.20 is valid) we only - // extract the first, which should be the client IP. - if match := forRegex.FindStringSubmatch(fwd); len(match) > 1 { - // IPv6 addresses in Forwarded headers are quoted-strings. We strip - // these quotes. - addr = strings.Trim(match[1], `"`) - } - } - - return addr -} - -// getScheme retrieves the scheme from the X-Forwarded-Proto and RFC7239 -// Forwarded headers (in that order). -func getScheme(r *http.Request) string { - var scheme string - - // Retrieve the scheme from X-Forwarded-Proto. - if proto := r.Header.Get(xForwardedProto); proto != "" { - scheme = strings.ToLower(proto) - } else if proto = r.Header.Get(xForwardedScheme); proto != "" { - scheme = strings.ToLower(proto) - } else if proto = r.Header.Get(forwarded); proto != "" { - // match should contain at least two elements if the protocol was - // specified in the Forwarded header. The first element will always be - // the 'proto=' capture, which we ignore. In the case of multiple proto - // parameters (invalid) we only extract the first. - if match := protoRegex.FindStringSubmatch(proto); len(match) > 1 { - scheme = strings.ToLower(match[1]) - } - } - - return scheme -} diff --git a/vendor/github.com/gorilla/handlers/recovery.go b/vendor/github.com/gorilla/handlers/recovery.go deleted file mode 100644 index b1be9dc..0000000 --- a/vendor/github.com/gorilla/handlers/recovery.go +++ /dev/null @@ -1,91 +0,0 @@ -package handlers - -import ( - "log" - "net/http" - "runtime/debug" -) - -// RecoveryHandlerLogger is an interface used by the recovering handler to print logs. -type RecoveryHandlerLogger interface { - Println(...interface{}) -} - -type recoveryHandler struct { - handler http.Handler - logger RecoveryHandlerLogger - printStack bool -} - -// RecoveryOption provides a functional approach to define -// configuration for a handler; such as setting the logging -// whether or not to print strack traces on panic. -type RecoveryOption func(http.Handler) - -func parseRecoveryOptions(h http.Handler, opts ...RecoveryOption) http.Handler { - for _, option := range opts { - option(h) - } - - return h -} - -// RecoveryHandler is HTTP middleware that recovers from a panic, -// logs the panic, writes http.StatusInternalServerError, and -// continues to the next handler. -// -// Example: -// -// r := mux.NewRouter() -// r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { -// panic("Unexpected error!") -// }) -// -// http.ListenAndServe(":1123", handlers.RecoveryHandler()(r)) -func RecoveryHandler(opts ...RecoveryOption) func(h http.Handler) http.Handler { - return func(h http.Handler) http.Handler { - r := &recoveryHandler{handler: h} - return parseRecoveryOptions(r, opts...) - } -} - -// RecoveryLogger is a functional option to override -// the default logger -func RecoveryLogger(logger RecoveryHandlerLogger) RecoveryOption { - return func(h http.Handler) { - r := h.(*recoveryHandler) - r.logger = logger - } -} - -// PrintRecoveryStack is a functional option to enable -// or disable printing stack traces on panic. -func PrintRecoveryStack(print bool) RecoveryOption { - return func(h http.Handler) { - r := h.(*recoveryHandler) - r.printStack = print - } -} - -func (h recoveryHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) { - defer func() { - if err := recover(); err != nil { - w.WriteHeader(http.StatusInternalServerError) - h.log(err) - } - }() - - h.handler.ServeHTTP(w, req) -} - -func (h recoveryHandler) log(v ...interface{}) { - if h.logger != nil { - h.logger.Println(v...) - } else { - log.Println(v...) - } - - if h.printStack { - debug.PrintStack() - } -} |