/
util.go
179 lines (145 loc) · 3.4 KB
/
util.go
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package easyreq
import (
"bytes"
"fmt"
"io"
"mime/multipart"
"net/http"
"os"
"path/filepath"
"reflect"
"runtime"
"sort"
"strings"
)
func IsEmptyString(str string) bool {
return len(strings.TrimSpace(str)) == 0
}
func typeOf(i any) reflect.Type {
return reflect.Indirect(reflect.ValueOf(i)).Type()
}
func kindOf(i any) reflect.Kind {
return typeOf(i).Kind()
}
func functionName(f any) string {
return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
}
func getPointer(v any) any {
vv := reflect.ValueOf(v)
if vv.Kind() == reflect.Ptr {
return v
}
return reflect.New(vv.Type()).Interface()
}
func hasHTTPScheme(url string) bool {
if strings.HasPrefix(url, "http:") || strings.HasPrefix(url, "https:") || strings.HasPrefix(url, "//") {
return true
}
return false
}
func firstNonEmpty(str ...string) string {
for _, s := range str {
if !IsEmptyString(s) {
return s
}
}
return ""
}
func Unmarshalc(c *Client, contentType string, b []byte, d interface{}) (err error) {
if isJSONContentType(contentType) {
err = c.JSONUnmarshal(b, d)
} else if isXMLContentType(contentType) {
err = c.XMLUnmarshal(b, d)
}
return
}
func copyHeaders(headers http.Header) http.Header {
nh := http.Header{}
for k, v := range headers {
nh[k] = v
}
return nh
}
func isJSONContentType(str string) bool {
return jsonCheck.MatchString(str)
}
func isXMLContentType(str string) bool {
return xmlCheck.MatchString(str)
}
func isPayloadSupported(method string, allowMethodGet bool) bool {
return !(method == MethodGet || method == MethodOptions || (method == MethodGet && !allowMethodGet))
}
func acquireBuffer() *bytes.Buffer {
return bufPool.Get().(*bytes.Buffer)
}
func releaseBuffer(buf *bytes.Buffer) {
if buf != nil {
const maxSize = 1 << 16 // 64KiB
if buf.Cap() > maxSize {
return
}
buf.Reset()
bufPool.Put(buf)
}
}
func composeHeaders(c *Client, r *Request, headers http.Header) string {
str := make([]string, 0, len(headers))
for _, k := range sortHeaderKeys(headers) {
var v string
if k == "Cookie" {
cv := strings.TrimSpace(headers.Get(k))
if c.GetHTTPClient().Jar != nil {
for _, cookie := range c.GetHTTPClient().Jar.Cookies(r.RawRequest.URL) {
if cv != "" {
cv = cv + "; " + cookie.String()
} else {
cv = cookie.String()
}
}
}
v = strings.TrimSpace(fmt.Sprintf("%25s: %s", k, cv))
} else {
v = strings.TrimSpace(fmt.Sprintf("%25s: %s", k, strings.Join(headers[k], ", ")))
}
if v != "" {
str = append(str, "\t"+v)
}
}
return strings.Join(str, "\n")
}
func sortHeaderKeys(headers http.Header) []string {
var keys []string
for key := range headers {
keys = append(keys, key)
}
sort.Strings(keys)
return keys
}
func addFile(w *multipart.Writer, fileName string, path string) error {
file, err := os.Open(path)
if err != nil {
return err
}
defer closeq(file)
return writeMultipartFormFile(w, fileName, filepath.Base(path), file)
}
func addFileReader(w *multipart.Writer, f *File) error {
return writeMultipartFormFile(w, f.FieldName, f.Name, f.Reader)
}
func writeMultipartFormFile(w *multipart.Writer, fieldName string, fileName string, r io.Reader) error {
p, err := w.CreateFormFile(fieldName, fileName)
if err != nil {
return err
}
_, err = io.Copy(p, r)
if err != nil {
return err
}
return nil
}
func closeq(v any) {
if c, ok := v.(io.Closer); ok {
silently(c.Close())
}
}
func silently(_ ...any) {}