diff options
Diffstat (limited to 'vendor/gopkg.in/macaron.v1/recovery.go')
| -rw-r--r-- | vendor/gopkg.in/macaron.v1/recovery.go | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/vendor/gopkg.in/macaron.v1/recovery.go b/vendor/gopkg.in/macaron.v1/recovery.go deleted file mode 100644 index ea3bdac0..00000000 --- a/vendor/gopkg.in/macaron.v1/recovery.go +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2013 Martini Authors -// Copyright 2014 The Macaron Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"): you may -// not use this file except in compliance with the License. You may obtain -// a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -// License for the specific language governing permissions and limitations -// under the License. - -package macaron - -import ( - "bytes" - "fmt" - "io/ioutil" - "log" - "net/http" - "runtime" - - "github.com/go-macaron/inject" -) - -const ( - panicHtml = `<html> -<head><title>PANIC: %s</title> -<meta charset="utf-8" /> -<style type="text/css"> -html, body { - font-family: "Roboto", sans-serif; - color: #333333; - background-color: #ea5343; - margin: 0px; -} -h1 { - color: #d04526; - background-color: #ffffff; - padding: 20px; - border-bottom: 1px dashed #2b3848; -} -pre { - margin: 20px; - padding: 20px; - border: 2px solid #2b3848; - background-color: #ffffff; - white-space: pre-wrap; /* css-3 */ - white-space: -moz-pre-wrap; /* Mozilla, since 1999 */ - white-space: -pre-wrap; /* Opera 4-6 */ - white-space: -o-pre-wrap; /* Opera 7 */ - word-wrap: break-word; /* Internet Explorer 5.5+ */ -} -</style> -</head><body> -<h1>PANIC</h1> -<pre style="font-weight: bold;">%s</pre> -<pre>%s</pre> -</body> -</html>` -) - -var ( - dunno = []byte("???") - centerDot = []byte("·") - dot = []byte(".") - slash = []byte("/") -) - -// stack returns a nicely formated stack frame, skipping skip frames -func stack(skip int) []byte { - buf := new(bytes.Buffer) // the returned data - // As we loop, we open files and read them. These variables record the currently - // loaded file. - var lines [][]byte - var lastFile string - for i := skip; ; i++ { // Skip the expected number of frames - pc, file, line, ok := runtime.Caller(i) - if !ok { - break - } - // Print this much at least. If we can't find the source, it won't show. - fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc) - if file != lastFile { - data, err := ioutil.ReadFile(file) - if err != nil { - continue - } - lines = bytes.Split(data, []byte{'\n'}) - lastFile = file - } - fmt.Fprintf(buf, "\t%s: %s\n", function(pc), source(lines, line)) - } - return buf.Bytes() -} - -// source returns a space-trimmed slice of the n'th line. -func source(lines [][]byte, n int) []byte { - n-- // in stack trace, lines are 1-indexed but our array is 0-indexed - if n < 0 || n >= len(lines) { - return dunno - } - return bytes.TrimSpace(lines[n]) -} - -// function returns, if possible, the name of the function containing the PC. -func function(pc uintptr) []byte { - fn := runtime.FuncForPC(pc) - if fn == nil { - return dunno - } - name := []byte(fn.Name()) - // The name includes the path name to the package, which is unnecessary - // since the file name is already included. Plus, it has center dots. - // That is, we see - // runtime/debug.*T·ptrmethod - // and want - // *T.ptrmethod - // Also the package path might contains dot (e.g. code.google.com/...), - // so first eliminate the path prefix - if lastslash := bytes.LastIndex(name, slash); lastslash >= 0 { - name = name[lastslash+1:] - } - if period := bytes.Index(name, dot); period >= 0 { - name = name[period+1:] - } - name = bytes.Replace(name, centerDot, dot, -1) - return name -} - -// Recovery returns a middleware that recovers from any panics and writes a 500 if there was one. -// While Martini is in development mode, Recovery will also output the panic as HTML. -func Recovery() Handler { - return func(c *Context, log *log.Logger) { - defer func() { - if err := recover(); err != nil { - stack := stack(3) - log.Printf("PANIC: %s\n%s", err, stack) - - // Lookup the current responsewriter - val := c.GetVal(inject.InterfaceOf((*http.ResponseWriter)(nil))) - res := val.Interface().(http.ResponseWriter) - - // respond with panic message while in development mode - var body []byte - if Env == DEV { - res.Header().Set("Content-Type", "text/html") - body = []byte(fmt.Sprintf(panicHtml, err, err, stack)) - } - - res.WriteHeader(http.StatusInternalServerError) - if nil != body { - res.Write(body) - } - } - }() - - c.Next() - } -} |