1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package router
import (
"fmt"
"net/http"
"os"
"time"
"codeberg.org/gruf/go-bytesize"
"codeberg.org/gruf/go-errors/v2"
"github.com/gin-gonic/gin"
"github.com/sirupsen/logrus"
)
// loggingMiddleware provides a request logging and panic recovery gin handler.
func loggingMiddleware(c *gin.Context) {
// Initialize the logging fields
fields := make(logrus.Fields, 7)
// Determine pre-handler time
before := time.Now()
defer func() {
code := c.Writer.Status()
path := c.Request.URL.Path
if r := recover(); r != nil {
if c.Writer.Status() == 0 {
// No response was written, send a generic Internal Error
c.Writer.WriteHeader(http.StatusInternalServerError)
}
// Append panic information to the request ctx
_ = c.Error(fmt.Errorf("recovered panic: %v", r))
// Dump a stacktrace to stderr
callers := errors.GetCallers(3, 10)
fmt.Fprintf(os.Stderr, "recovered panic: %v\n%s", r, callers)
}
// NOTE:
// It is very important here that we are ONLY logging
// the request path, and none of the query parameters.
// Query parameters can contain sensitive information
// and could lead to storing plaintext API keys in logs
// Set request logging fields
fields["latency"] = time.Since(before)
fields["clientIP"] = c.ClientIP()
fields["userAgent"] = c.Request.UserAgent()
fields["method"] = c.Request.Method
fields["statusCode"] = code
fields["path"] = path
// Create a log entry with fields
l := logrus.WithFields(fields)
l.Level = logrus.InfoLevel
if code >= 500 {
// This is a server error
l.Level = logrus.ErrorLevel
if len(c.Errors) > 0 {
// Add an error string log field
fields["error"] = c.Errors.String()
}
}
// Generate a nicer looking bytecount
size := bytesize.Size(c.Writer.Size())
// Finally, write log entry with status text body size
l.Logf(l.Level, "%s: wrote %s", http.StatusText(code), size)
}()
// Process request
c.Next()
}
|
