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author | Christopher Speller <crspeller@gmail.com> | 2018-04-27 14:12:01 -0700 |
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committer | Christopher Speller <crspeller@gmail.com> | 2018-04-27 14:12:01 -0700 |
commit | eb9ff34fcfa51cd8205841a02f3d3d61ec5be8fa (patch) | |
tree | ed01fd9488bd86f6c2daf0b299dff5beb43973db /vendor/go.uber.org/zap/http_handler.go | |
parent | 2386acb3ddabd8827e21b1862c338a8b13a25de6 (diff) | |
parent | 2e6b3da1d3466db379fef0d61a23e2878d17ee9d (diff) | |
download | chat-eb9ff34fcfa51cd8205841a02f3d3d61ec5be8fa.tar.gz chat-eb9ff34fcfa51cd8205841a02f3d3d61ec5be8fa.tar.bz2 chat-eb9ff34fcfa51cd8205841a02f3d3d61ec5be8fa.zip |
Merge branch 'master' into advanced-permissions-phase-2
Diffstat (limited to 'vendor/go.uber.org/zap/http_handler.go')
-rw-r--r-- | vendor/go.uber.org/zap/http_handler.go | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/vendor/go.uber.org/zap/http_handler.go b/vendor/go.uber.org/zap/http_handler.go new file mode 100644 index 000000000..f171c3847 --- /dev/null +++ b/vendor/go.uber.org/zap/http_handler.go @@ -0,0 +1,81 @@ +// 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" + "fmt" + "net/http" + + "go.uber.org/zap/zapcore" +) + +// ServeHTTP is a simple JSON endpoint that can report on or change the current +// logging level. +// +// GET requests return a JSON description of the current logging level. PUT +// requests change the logging level and expect a payload like: +// {"level":"info"} +// +// It's perfectly safe to change the logging level while a program is running. +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 "GET": + current := lvl.Level() + enc.Encode(payload{Level: ¤t}) + + case "PUT": + var req payload + + if errmess := func() string { + if err := json.NewDecoder(r.Body).Decode(&req); err != nil { + return fmt.Sprintf("Request body must be well-formed JSON: %v", err) + } + if req.Level == nil { + return "Must specify a logging level." + } + return "" + }(); errmess != "" { + w.WriteHeader(http.StatusBadRequest) + enc.Encode(errorResponse{Error: errmess}) + return + } + + lvl.SetLevel(*req.Level) + enc.Encode(req) + + default: + w.WriteHeader(http.StatusMethodNotAllowed) + enc.Encode(errorResponse{ + Error: "Only GET and PUT are supported.", + }) + } +} |