/usr/share/gocode/src/github.com/gin-gonic/gin/utils.go is in golang-github-gin-gonic-gin-dev 1.2+dfsg1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | // Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package gin
import (
"encoding/xml"
"net/http"
"os"
"path"
"reflect"
"runtime"
"strings"
)
const BindKey = "_gin-gonic/gin/bindkey"
func Bind(val interface{}) HandlerFunc {
value := reflect.ValueOf(val)
if value.Kind() == reflect.Ptr {
panic(`Bind struct can not be a pointer. Example:
Use: gin.Bind(Struct{}) instead of gin.Bind(&Struct{})
`)
}
typ := value.Type()
return func(c *Context) {
obj := reflect.New(typ).Interface()
if c.Bind(obj) == nil {
c.Set(BindKey, obj)
}
}
}
func WrapF(f http.HandlerFunc) HandlerFunc {
return func(c *Context) {
f(c.Writer, c.Request)
}
}
func WrapH(h http.Handler) HandlerFunc {
return func(c *Context) {
h.ServeHTTP(c.Writer, c.Request)
}
}
type H map[string]interface{}
// MarshalXML allows type H to be used with xml.Marshal
func (h H) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
start.Name = xml.Name{
Space: "",
Local: "map",
}
if err := e.EncodeToken(start); err != nil {
return err
}
for key, value := range h {
elem := xml.StartElement{
Name: xml.Name{Space: "", Local: key},
Attr: []xml.Attr{},
}
if err := e.EncodeElement(value, elem); err != nil {
return err
}
}
if err := e.EncodeToken(xml.EndElement{Name: start.Name}); err != nil {
return err
}
return nil
}
func assert1(guard bool, text string) {
if !guard {
panic(text)
}
}
func filterFlags(content string) string {
for i, char := range content {
if char == ' ' || char == ';' {
return content[:i]
}
}
return content
}
func chooseData(custom, wildcard interface{}) interface{} {
if custom == nil {
if wildcard == nil {
panic("negotiation config is invalid")
}
return wildcard
}
return custom
}
func parseAccept(acceptHeader string) []string {
parts := strings.Split(acceptHeader, ",")
out := make([]string, 0, len(parts))
for _, part := range parts {
index := strings.IndexByte(part, ';')
if index >= 0 {
part = part[0:index]
}
part = strings.TrimSpace(part)
if len(part) > 0 {
out = append(out, part)
}
}
return out
}
func lastChar(str string) uint8 {
size := len(str)
if size == 0 {
panic("The length of the string can't be 0")
}
return str[size-1]
}
func nameOfFunction(f interface{}) string {
return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
}
func joinPaths(absolutePath, relativePath string) string {
if len(relativePath) == 0 {
return absolutePath
}
finalPath := path.Join(absolutePath, relativePath)
appendSlash := lastChar(relativePath) == '/' && lastChar(finalPath) != '/'
if appendSlash {
return finalPath + "/"
}
return finalPath
}
func resolveAddress(addr []string) string {
switch len(addr) {
case 0:
if port := os.Getenv("PORT"); len(port) > 0 {
debugPrint("Environment variable PORT=\"%s\"", port)
return ":" + port
}
debugPrint("Environment variable PORT is undefined. Using port :8080 by default")
return ":8080"
case 1:
return addr[0]
default:
panic("too much parameters")
}
}
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