diff options
Diffstat (limited to 'vendor/go.uber.org/zap/http_handler.go')
| -rw-r--r-- | vendor/go.uber.org/zap/http_handler.go | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/vendor/go.uber.org/zap/http_handler.go b/vendor/go.uber.org/zap/http_handler.go deleted file mode 100644 index 632b683..0000000 --- a/vendor/go.uber.org/zap/http_handler.go +++ /dev/null @@ -1,133 +0,0 @@ -// Copyright (c) 2016 Uber Technologies, Inc. -// -// 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. - -package zap - -import ( - "encoding/json" - "errors" - "fmt" - "io" - "net/http" - - "go.uber.org/zap/zapcore" -) - -// ServeHTTP is a simple JSON endpoint that can report on or change the current -// logging level. -// -// # GET -// -// The GET request returns a JSON description of the current logging level like: -// -// {"level":"info"} -// -// # PUT -// -// The PUT request changes the logging level. It is perfectly safe to change the -// logging level while a program is running. Two content types are supported: -// -// Content-Type: application/x-www-form-urlencoded -// -// With this content type, the level can be provided through the request body or -// a query parameter. The log level is URL encoded like: -// -// level=debug -// -// The request body takes precedence over the query parameter, if both are -// specified. -// -// This content type is the default for a curl PUT request. Following are two -// example curl requests that both set the logging level to debug. -// -// curl -X PUT localhost:8080/log/level?level=debug -// curl -X PUT localhost:8080/log/level -d level=debug -// -// For any other content type, the payload is expected to be JSON encoded and -// look like: -// -// {"level":"info"} -// -// An example curl request could look like this: -// -// curl -X PUT localhost:8080/log/level -H "Content-Type: application/json" -d '{"level":"debug"}' -func (lvl AtomicLevel) ServeHTTP(w http.ResponseWriter, r *http.Request) { - type errorResponse struct { - Error string `json:"error"` - } - type payload struct { - Level zapcore.Level `json:"level"` - } - - enc := json.NewEncoder(w) - - switch r.Method { - case http.MethodGet: - enc.Encode(payload{Level: lvl.Level()}) - case http.MethodPut: - requestedLvl, err := decodePutRequest(r.Header.Get("Content-Type"), r) - if err != nil { - w.WriteHeader(http.StatusBadRequest) - enc.Encode(errorResponse{Error: err.Error()}) - return - } - lvl.SetLevel(requestedLvl) - enc.Encode(payload{Level: lvl.Level()}) - default: - w.WriteHeader(http.StatusMethodNotAllowed) - enc.Encode(errorResponse{ - Error: "Only GET and PUT are supported.", - }) - } -} - -// Decodes incoming PUT requests and returns the requested logging level. -func decodePutRequest(contentType string, r *http.Request) (zapcore.Level, error) { - if contentType == "application/x-www-form-urlencoded" { - return decodePutURL(r) - } - return decodePutJSON(r.Body) -} - -func decodePutURL(r *http.Request) (zapcore.Level, error) { - lvl := r.FormValue("level") - if lvl == "" { - return 0, errors.New("must specify logging level") - } - var l zapcore.Level - if err := l.UnmarshalText([]byte(lvl)); err != nil { - return 0, err - } - return l, nil -} - -func decodePutJSON(body io.Reader) (zapcore.Level, error) { - var pld struct { - Level *zapcore.Level `json:"level"` - } - if err := json.NewDecoder(body).Decode(&pld); err != nil { - return 0, fmt.Errorf("malformed request body: %v", err) - } - if pld.Level == nil { - return 0, errors.New("must specify logging level") - } - return *pld.Level, nil - -} |