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Added all required dependencies

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Thomas Boerger 2016-11-03 23:16:01 +01:00
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction, and
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outstanding shares, or (iii) beneficial ownership of such entity.
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5. Submission of Contributions.
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for inclusion in the Work by You to the Licensor shall be under the terms and
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Notwithstanding the above, nothing herein shall supersede or modify the terms of
any separate license agreement you may have executed with Licensor regarding
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sole responsibility, not on behalf of any other Contributor, and only if You
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incurred by, or claims asserted against, such Contributor by reason of your
accepting any such warranty or additional liability.
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Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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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.
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Common Functions
================
[![Build Status](https://travis-ci.org/Unknwon/com.svg)](https://travis-ci.org/Unknwon/com) [![Go Walker](http://gowalker.org/api/v1/badge)](http://gowalker.org/github.com/Unknwon/com)
This is an open source project for commonly used functions for the Go programming language.
This package need >= **go 1.2**
Code Convention: based on [Go Code Convention](https://github.com/Unknwon/go-code-convention).
## Contribute
Your contribute is welcome, but you have to check following steps after you added some functions and commit them:
1. Make sure you wrote user-friendly comments for **all functions** .
2. Make sure you wrote test cases with any possible condition for **all functions** in file `*_test.go`.
3. Make sure you wrote benchmarks for **all functions** in file `*_test.go`.
4. Make sure you wrote useful examples for **all functions** in file `example_test.go`.
5. Make sure you ran `go test` and got **PASS** .

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// +build go1.2
// Copyright 2013 com 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 com is an open source project for commonly used functions for the Go programming language.
package com
import (
"bytes"
"fmt"
"os/exec"
"runtime"
"strings"
)
// ExecCmdDirBytes executes system command in given directory
// and return stdout, stderr in bytes type, along with possible error.
func ExecCmdDirBytes(dir, cmdName string, args ...string) ([]byte, []byte, error) {
bufOut := new(bytes.Buffer)
bufErr := new(bytes.Buffer)
cmd := exec.Command(cmdName, args...)
cmd.Dir = dir
cmd.Stdout = bufOut
cmd.Stderr = bufErr
err := cmd.Run()
return bufOut.Bytes(), bufErr.Bytes(), err
}
// ExecCmdBytes executes system command
// and return stdout, stderr in bytes type, along with possible error.
func ExecCmdBytes(cmdName string, args ...string) ([]byte, []byte, error) {
return ExecCmdDirBytes("", cmdName, args...)
}
// ExecCmdDir executes system command in given directory
// and return stdout, stderr in string type, along with possible error.
func ExecCmdDir(dir, cmdName string, args ...string) (string, string, error) {
bufOut, bufErr, err := ExecCmdDirBytes(dir, cmdName, args...)
return string(bufOut), string(bufErr), err
}
// ExecCmd executes system command
// and return stdout, stderr in string type, along with possible error.
func ExecCmd(cmdName string, args ...string) (string, string, error) {
return ExecCmdDir("", cmdName, args...)
}
// _________ .__ .____
// \_ ___ \ ____ | | ___________ | | ____ ____
// / \ \/ / _ \| | / _ \_ __ \ | | / _ \ / ___\
// \ \___( <_> ) |_( <_> ) | \/ | |__( <_> ) /_/ >
// \______ /\____/|____/\____/|__| |_______ \____/\___ /
// \/ \/ /_____/
// Color number constants.
const (
Gray = uint8(iota + 90)
Red
Green
Yellow
Blue
Magenta
//NRed = uint8(31) // Normal
EndColor = "\033[0m"
)
// getColorLevel returns colored level string by given level.
func getColorLevel(level string) string {
level = strings.ToUpper(level)
switch level {
case "TRAC":
return fmt.Sprintf("\033[%dm%s\033[0m", Blue, level)
case "ERRO":
return fmt.Sprintf("\033[%dm%s\033[0m", Red, level)
case "WARN":
return fmt.Sprintf("\033[%dm%s\033[0m", Magenta, level)
case "SUCC":
return fmt.Sprintf("\033[%dm%s\033[0m", Green, level)
default:
return level
}
}
// ColorLogS colors log and return colored content.
// Log format: <level> <content [highlight][path]> [ error ].
// Level: TRAC -> blue; ERRO -> red; WARN -> Magenta; SUCC -> green; others -> default.
// Content: default; path: yellow; error -> red.
// Level has to be surrounded by "[" and "]".
// Highlights have to be surrounded by "# " and " #"(space), "#" will be deleted.
// Paths have to be surrounded by "( " and " )"(space).
// Errors have to be surrounded by "[ " and " ]"(space).
// Note: it hasn't support windows yet, contribute is welcome.
func ColorLogS(format string, a ...interface{}) string {
log := fmt.Sprintf(format, a...)
var clog string
if runtime.GOOS != "windows" {
// Level.
i := strings.Index(log, "]")
if log[0] == '[' && i > -1 {
clog += "[" + getColorLevel(log[1:i]) + "]"
}
log = log[i+1:]
// Error.
log = strings.Replace(log, "[ ", fmt.Sprintf("[\033[%dm", Red), -1)
log = strings.Replace(log, " ]", EndColor+"]", -1)
// Path.
log = strings.Replace(log, "( ", fmt.Sprintf("(\033[%dm", Yellow), -1)
log = strings.Replace(log, " )", EndColor+")", -1)
// Highlights.
log = strings.Replace(log, "# ", fmt.Sprintf("\033[%dm", Gray), -1)
log = strings.Replace(log, " #", EndColor, -1)
} else {
// Level.
i := strings.Index(log, "]")
if log[0] == '[' && i > -1 {
clog += "[" + log[1:i] + "]"
}
log = log[i+1:]
// Error.
log = strings.Replace(log, "[ ", "[", -1)
log = strings.Replace(log, " ]", "]", -1)
// Path.
log = strings.Replace(log, "( ", "(", -1)
log = strings.Replace(log, " )", ")", -1)
// Highlights.
log = strings.Replace(log, "# ", "", -1)
log = strings.Replace(log, " #", "", -1)
}
return clog + log
}
// ColorLog prints colored log to stdout.
// See color rules in function 'ColorLogS'.
func ColorLog(format string, a ...interface{}) {
fmt.Print(ColorLogS(format, a...))
}

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// Copyright 2014 com 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 com
import (
"fmt"
"strconv"
)
// Convert string to specify type.
type StrTo string
func (f StrTo) Exist() bool {
return string(f) != string(0x1E)
}
func (f StrTo) Uint8() (uint8, error) {
v, err := strconv.ParseUint(f.String(), 10, 8)
return uint8(v), err
}
func (f StrTo) Int() (int, error) {
v, err := strconv.ParseInt(f.String(), 10, 0)
return int(v), err
}
func (f StrTo) Int64() (int64, error) {
v, err := strconv.ParseInt(f.String(), 10, 64)
return int64(v), err
}
func (f StrTo) MustUint8() uint8 {
v, _ := f.Uint8()
return v
}
func (f StrTo) MustInt() int {
v, _ := f.Int()
return v
}
func (f StrTo) MustInt64() int64 {
v, _ := f.Int64()
return v
}
func (f StrTo) String() string {
if f.Exist() {
return string(f)
}
return ""
}
// Convert any type to string.
func ToStr(value interface{}, args ...int) (s string) {
switch v := value.(type) {
case bool:
s = strconv.FormatBool(v)
case float32:
s = strconv.FormatFloat(float64(v), 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 32))
case float64:
s = strconv.FormatFloat(v, 'f', argInt(args).Get(0, -1), argInt(args).Get(1, 64))
case int:
s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
case int8:
s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
case int16:
s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
case int32:
s = strconv.FormatInt(int64(v), argInt(args).Get(0, 10))
case int64:
s = strconv.FormatInt(v, argInt(args).Get(0, 10))
case uint:
s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
case uint8:
s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
case uint16:
s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
case uint32:
s = strconv.FormatUint(uint64(v), argInt(args).Get(0, 10))
case uint64:
s = strconv.FormatUint(v, argInt(args).Get(0, 10))
case string:
s = v
case []byte:
s = string(v)
default:
s = fmt.Sprintf("%v", v)
}
return s
}
type argInt []int
func (a argInt) Get(i int, args ...int) (r int) {
if i >= 0 && i < len(a) {
r = a[i]
} else if len(args) > 0 {
r = args[0]
}
return
}
// HexStr2int converts hex format string to decimal number.
func HexStr2int(hexStr string) (int, error) {
num := 0
length := len(hexStr)
for i := 0; i < length; i++ {
char := hexStr[length-i-1]
factor := -1
switch {
case char >= '0' && char <= '9':
factor = int(char) - '0'
case char >= 'a' && char <= 'f':
factor = int(char) - 'a' + 10
default:
return -1, fmt.Errorf("invalid hex: %s", string(char))
}
num += factor * PowInt(16, i)
}
return num, nil
}
// Int2HexStr converts decimal number to hex format string.
func Int2HexStr(num int) (hex string) {
if num == 0 {
return "0"
}
for num > 0 {
r := num % 16
c := "?"
if r >= 0 && r <= 9 {
c = string(r + '0')
} else {
c = string(r + 'a' - 10)
}
hex = c + hex
num = num / 16
}
return hex
}

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// Copyright 2013 com 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 com
import (
"errors"
"fmt"
"os"
"path"
"strings"
)
// IsDir returns true if given path is a directory,
// or returns false when it's a file or does not exist.
func IsDir(dir string) bool {
f, e := os.Stat(dir)
if e != nil {
return false
}
return f.IsDir()
}
func statDir(dirPath, recPath string, includeDir, isDirOnly bool) ([]string, error) {
dir, err := os.Open(dirPath)
if err != nil {
return nil, err
}
defer dir.Close()
fis, err := dir.Readdir(0)
if err != nil {
return nil, err
}
statList := make([]string, 0)
for _, fi := range fis {
if strings.Contains(fi.Name(), ".DS_Store") {
continue
}
relPath := path.Join(recPath, fi.Name())
curPath := path.Join(dirPath, fi.Name())
if fi.IsDir() {
if includeDir {
statList = append(statList, relPath+"/")
}
s, err := statDir(curPath, relPath, includeDir, isDirOnly)
if err != nil {
return nil, err
}
statList = append(statList, s...)
} else if !isDirOnly {
statList = append(statList, relPath)
}
}
return statList, nil
}
// StatDir gathers information of given directory by depth-first.
// It returns slice of file list and includes subdirectories if enabled;
// it returns error and nil slice when error occurs in underlying functions,
// or given path is not a directory or does not exist.
//
// Slice does not include given path itself.
// If subdirectories is enabled, they will have suffix '/'.
func StatDir(rootPath string, includeDir ...bool) ([]string, error) {
if !IsDir(rootPath) {
return nil, errors.New("not a directory or does not exist: " + rootPath)
}
isIncludeDir := false
if len(includeDir) >= 1 {
isIncludeDir = includeDir[0]
}
return statDir(rootPath, "", isIncludeDir, false)
}
// GetAllSubDirs returns all subdirectories of given root path.
// Slice does not include given path itself.
func GetAllSubDirs(rootPath string) ([]string, error) {
if !IsDir(rootPath) {
return nil, errors.New("not a directory or does not exist: " + rootPath)
}
return statDir(rootPath, "", true, true)
}
// GetFileListBySuffix returns an ordered list of file paths.
// It recognize if given path is a file, and don't do recursive find.
func GetFileListBySuffix(dirPath, suffix string) ([]string, error) {
if !IsExist(dirPath) {
return nil, fmt.Errorf("given path does not exist: %s", dirPath)
} else if IsFile(dirPath) {
return []string{dirPath}, nil
}
// Given path is a directory.
dir, err := os.Open(dirPath)
if err != nil {
return nil, err
}
fis, err := dir.Readdir(0)
if err != nil {
return nil, err
}
files := make([]string, 0, len(fis))
for _, fi := range fis {
if strings.HasSuffix(fi.Name(), suffix) {
files = append(files, path.Join(dirPath, fi.Name()))
}
}
return files, nil
}
// CopyDir copy files recursively from source to target directory.
//
// The filter accepts a function that process the path info.
// and should return true for need to filter.
//
// It returns error when error occurs in underlying functions.
func CopyDir(srcPath, destPath string, filters ...func(filePath string) bool) error {
// Check if target directory exists.
if IsExist(destPath) {
return errors.New("file or directory alreay exists: " + destPath)
}
err := os.MkdirAll(destPath, os.ModePerm)
if err != nil {
return err
}
// Gather directory info.
infos, err := StatDir(srcPath, true)
if err != nil {
return err
}
var filter func(filePath string) bool
if len(filters) > 0 {
filter = filters[0]
}
for _, info := range infos {
if filter != nil && filter(info) {
continue
}
curPath := path.Join(destPath, info)
if strings.HasSuffix(info, "/") {
err = os.MkdirAll(curPath, os.ModePerm)
} else {
err = Copy(path.Join(srcPath, info), curPath)
}
if err != nil {
return err
}
}
return nil
}

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// Copyright 2013 com 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 com
import (
"fmt"
"io"
"io/ioutil"
"math"
"os"
"path"
)
// Storage unit constants.
const (
Byte = 1
KByte = Byte * 1024
MByte = KByte * 1024
GByte = MByte * 1024
TByte = GByte * 1024
PByte = TByte * 1024
EByte = PByte * 1024
)
func logn(n, b float64) float64 {
return math.Log(n) / math.Log(b)
}
func humanateBytes(s uint64, base float64, sizes []string) string {
if s < 10 {
return fmt.Sprintf("%dB", s)
}
e := math.Floor(logn(float64(s), base))
suffix := sizes[int(e)]
val := float64(s) / math.Pow(base, math.Floor(e))
f := "%.0f"
if val < 10 {
f = "%.1f"
}
return fmt.Sprintf(f+"%s", val, suffix)
}
// HumaneFileSize calculates the file size and generate user-friendly string.
func HumaneFileSize(s uint64) string {
sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
return humanateBytes(s, 1024, sizes)
}
// FileMTime returns file modified time and possible error.
func FileMTime(file string) (int64, error) {
f, err := os.Stat(file)
if err != nil {
return 0, err
}
return f.ModTime().Unix(), nil
}
// FileSize returns file size in bytes and possible error.
func FileSize(file string) (int64, error) {
f, err := os.Stat(file)
if err != nil {
return 0, err
}
return f.Size(), nil
}
// Copy copies file from source to target path.
func Copy(src, dest string) error {
// Gather file information to set back later.
si, err := os.Lstat(src)
if err != nil {
return err
}
// Handle symbolic link.
if si.Mode()&os.ModeSymlink != 0 {
target, err := os.Readlink(src)
if err != nil {
return err
}
// NOTE: os.Chmod and os.Chtimes don't recoganize symbolic link,
// which will lead "no such file or directory" error.
return os.Symlink(target, dest)
}
sr, err := os.Open(src)
if err != nil {
return err
}
defer sr.Close()
dw, err := os.Create(dest)
if err != nil {
return err
}
defer dw.Close()
if _, err = io.Copy(dw, sr); err != nil {
return err
}
// Set back file information.
if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
return err
}
return os.Chmod(dest, si.Mode())
}
// WriteFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it
// and its upper level paths.
func WriteFile(filename string, data []byte) error {
os.MkdirAll(path.Dir(filename), os.ModePerm)
return ioutil.WriteFile(filename, data, 0655)
}
// IsFile returns true if given path is a file,
// or returns false when it's a directory or does not exist.
func IsFile(filePath string) bool {
f, e := os.Stat(filePath)
if e != nil {
return false
}
return !f.IsDir()
}
// IsExist checks whether a file or directory exists.
// It returns false when the file or directory does not exist.
func IsExist(path string) bool {
_, err := os.Stat(path)
return err == nil || os.IsExist(err)
}

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// Copyright 2013 com 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 com
import (
"html"
"regexp"
"strings"
)
// Html2JS converts []byte type of HTML content into JS format.
func Html2JS(data []byte) []byte {
s := string(data)
s = strings.Replace(s, `\`, `\\`, -1)
s = strings.Replace(s, "\n", `\n`, -1)
s = strings.Replace(s, "\r", "", -1)
s = strings.Replace(s, "\"", `\"`, -1)
s = strings.Replace(s, "<table>", "&lt;table>", -1)
return []byte(s)
}
// encode html chars to string
func HtmlEncode(str string) string {
return html.EscapeString(str)
}
// decode string to html chars
func HtmlDecode(str string) string {
return html.UnescapeString(str)
}
// strip tags in html string
func StripTags(src string) string {
//去除style,script,html tag
re := regexp.MustCompile(`(?s)<(?:style|script)[^<>]*>.*?</(?:style|script)>|</?[a-z][a-z0-9]*[^<>]*>|<!--.*?-->`)
src = re.ReplaceAllString(src, "")
//trim all spaces(2+) into \n
re = regexp.MustCompile(`\s{2,}`)
src = re.ReplaceAllString(src, "\n")
return strings.TrimSpace(src)
}
// change \n to <br/>
func Nl2br(str string) string {
return strings.Replace(str, "\n", "<br/>", -1)
}

201
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// Copyright 2013 com 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 com
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"path"
)
type NotFoundError struct {
Message string
}
func (e NotFoundError) Error() string {
return e.Message
}
type RemoteError struct {
Host string
Err error
}
func (e *RemoteError) Error() string {
return e.Err.Error()
}
var UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1541.0 Safari/537.36"
// HttpCall makes HTTP method call.
func HttpCall(client *http.Client, method, url string, header http.Header, body io.Reader) (io.ReadCloser, error) {
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, err
}
req.Header.Set("User-Agent", UserAgent)
for k, vs := range header {
req.Header[k] = vs
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
if resp.StatusCode == 200 {
return resp.Body, nil
}
resp.Body.Close()
if resp.StatusCode == 404 { // 403 can be rate limit error. || resp.StatusCode == 403 {
err = fmt.Errorf("resource not found: %s", url)
} else {
err = fmt.Errorf("%s %s -> %d", method, url, resp.StatusCode)
}
return nil, err
}
// HttpGet gets the specified resource.
// ErrNotFound is returned if the server responds with status 404.
func HttpGet(client *http.Client, url string, header http.Header) (io.ReadCloser, error) {
return HttpCall(client, "GET", url, header, nil)
}
// HttpPost posts the specified resource.
// ErrNotFound is returned if the server responds with status 404.
func HttpPost(client *http.Client, url string, header http.Header, body []byte) (io.ReadCloser, error) {
return HttpCall(client, "POST", url, header, bytes.NewBuffer(body))
}
// HttpGetToFile gets the specified resource and writes to file.
// ErrNotFound is returned if the server responds with status 404.
func HttpGetToFile(client *http.Client, url string, header http.Header, fileName string) error {
rc, err := HttpGet(client, url, header)
if err != nil {
return err
}
defer rc.Close()
os.MkdirAll(path.Dir(fileName), os.ModePerm)
f, err := os.Create(fileName)
if err != nil {
return err
}
defer f.Close()
_, err = io.Copy(f, rc)
return err
}
// HttpGetBytes gets the specified resource. ErrNotFound is returned if the server
// responds with status 404.
func HttpGetBytes(client *http.Client, url string, header http.Header) ([]byte, error) {
rc, err := HttpGet(client, url, header)
if err != nil {
return nil, err
}
defer rc.Close()
return ioutil.ReadAll(rc)
}
// HttpGetJSON gets the specified resource and mapping to struct.
// ErrNotFound is returned if the server responds with status 404.
func HttpGetJSON(client *http.Client, url string, v interface{}) error {
rc, err := HttpGet(client, url, nil)
if err != nil {
return err
}
defer rc.Close()
err = json.NewDecoder(rc).Decode(v)
if _, ok := err.(*json.SyntaxError); ok {
return fmt.Errorf("JSON syntax error at %s", url)
}
return nil
}
// HttpPostJSON posts the specified resource with struct values,
// and maps results to struct.
// ErrNotFound is returned if the server responds with status 404.
func HttpPostJSON(client *http.Client, url string, body, v interface{}) error {
data, err := json.Marshal(body)
if err != nil {
return err
}
rc, err := HttpPost(client, url, http.Header{"content-type": []string{"application/json"}}, data)
if err != nil {
return err
}
defer rc.Close()
err = json.NewDecoder(rc).Decode(v)
if _, ok := err.(*json.SyntaxError); ok {
return fmt.Errorf("JSON syntax error at %s", url)
}
return nil
}
// A RawFile describes a file that can be downloaded.
type RawFile interface {
Name() string
RawUrl() string
Data() []byte
SetData([]byte)
}
// FetchFiles fetches files specified by the rawURL field in parallel.
func FetchFiles(client *http.Client, files []RawFile, header http.Header) error {
ch := make(chan error, len(files))
for i := range files {
go func(i int) {
p, err := HttpGetBytes(client, files[i].RawUrl(), nil)
if err != nil {
ch <- err
return
}
files[i].SetData(p)
ch <- nil
}(i)
}
for _ = range files {
if err := <-ch; err != nil {
return err
}
}
return nil
}
// FetchFiles uses command `curl` to fetch files specified by the rawURL field in parallel.
func FetchFilesCurl(files []RawFile, curlOptions ...string) error {
ch := make(chan error, len(files))
for i := range files {
go func(i int) {
stdout, _, err := ExecCmd("curl", append(curlOptions, files[i].RawUrl())...)
if err != nil {
ch <- err
return
}
files[i].SetData([]byte(stdout))
ch <- nil
}(i)
}
for _ = range files {
if err := <-ch; err != nil {
return err
}
}
return nil
}

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// Copyright 2014 com 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 com
// PowInt is int type of math.Pow function.
func PowInt(x int, y int) int {
if y <= 0 {
return 1
} else {
if y % 2 == 0 {
sqrt := PowInt(x, y/2)
return sqrt * sqrt
} else {
return PowInt(x, y-1) * x
}
}
}

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// Copyright 2013 com 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 com
import (
"errors"
"os"
"path/filepath"
"runtime"
"strings"
)
// GetGOPATHs returns all paths in GOPATH variable.
func GetGOPATHs() []string {
gopath := os.Getenv("GOPATH")
var paths []string
if runtime.GOOS == "windows" {
gopath = strings.Replace(gopath, "\\", "/", -1)
paths = strings.Split(gopath, ";")
} else {
paths = strings.Split(gopath, ":")
}
return paths
}
// GetSrcPath returns app. source code path.
// It only works when you have src. folder in GOPATH,
// it returns error not able to locate source folder path.
func GetSrcPath(importPath string) (appPath string, err error) {
paths := GetGOPATHs()
for _, p := range paths {
if IsExist(p + "/src/" + importPath + "/") {
appPath = p + "/src/" + importPath + "/"
break
}
}
if len(appPath) == 0 {
return "", errors.New("Unable to locate source folder path")
}
appPath = filepath.Dir(appPath) + "/"
if runtime.GOOS == "windows" {
// Replace all '\' to '/'.
appPath = strings.Replace(appPath, "\\", "/", -1)
}
return appPath, nil
}
// HomeDir returns path of '~'(in Linux) on Windows,
// it returns error when the variable does not exist.
func HomeDir() (home string, err error) {
if runtime.GOOS == "windows" {
home = os.Getenv("USERPROFILE")
if len(home) == 0 {
home = os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
}
} else {
home = os.Getenv("HOME")
}
if len(home) == 0 {
return "", errors.New("Cannot specify home directory because it's empty")
}
return home, nil
}

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// Copyright 2013 com 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 com
import "regexp"
const (
regex_email_pattern = `(?i)[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}`
regex_strict_email_pattern = `(?i)[A-Z0-9!#$%&'*+/=?^_{|}~-]+` +
`(?:\.[A-Z0-9!#$%&'*+/=?^_{|}~-]+)*` +
`@(?:[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?\.)+` +
`[A-Z0-9](?:[A-Z0-9-]*[A-Z0-9])?`
regex_url_pattern = `(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?`
)
var (
regex_email *regexp.Regexp
regex_strict_email *regexp.Regexp
regex_url *regexp.Regexp
)
func init() {
regex_email = regexp.MustCompile(regex_email_pattern)
regex_strict_email = regexp.MustCompile(regex_strict_email_pattern)
regex_url = regexp.MustCompile(regex_url_pattern)
}
// validate string is an email address, if not return false
// basically validation can match 99% cases
func IsEmail(email string) bool {
return regex_email.MatchString(email)
}
// validate string is an email address, if not return false
// this validation omits RFC 2822
func IsEmailRFC(email string) bool {
return regex_strict_email.MatchString(email)
}
// validate string is a url link, if not return false
// simple validation can match 99% cases
func IsUrl(url string) bool {
return regex_url.MatchString(url)
}

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vendor/github.com/Unknwon/com/slice.go generated vendored Normal file
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// Copyright 2013 com 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 com
import (
"strings"
)
// AppendStr appends string to slice with no duplicates.
func AppendStr(strs []string, str string) []string {
for _, s := range strs {
if s == str {
return strs
}
}
return append(strs, str)
}
// CompareSliceStr compares two 'string' type slices.
// It returns true if elements and order are both the same.
func CompareSliceStr(s1, s2 []string) bool {
if len(s1) != len(s2) {
return false
}
for i := range s1 {
if s1[i] != s2[i] {
return false
}
}
return true
}
// CompareSliceStr compares two 'string' type slices.
// It returns true if elements are the same, and ignores the order.
func CompareSliceStrU(s1, s2 []string) bool {
if len(s1) != len(s2) {
return false
}
for i := range s1 {
for j := len(s2) - 1; j >= 0; j-- {
if s1[i] == s2[j] {
s2 = append(s2[:j], s2[j+1:]...)
break
}
}
}
if len(s2) > 0 {
return false
}
return true
}
// IsSliceContainsStr returns true if the string exists in given slice, ignore case.
func IsSliceContainsStr(sl []string, str string) bool {
str = strings.ToLower(str)
for _, s := range sl {
if strings.ToLower(s) == str {
return true
}
}
return false
}
// IsSliceContainsInt64 returns true if the int64 exists in given slice.
func IsSliceContainsInt64(sl []int64, i int64) bool {
for _, s := range sl {
if s == i {
return true
}
}
return false
}

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// Copyright 2013 com 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 com
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"encoding/base64"
"errors"
"io"
r "math/rand"
"strconv"
"strings"
"time"
"unicode"
"unicode/utf8"
)
// AESEncrypt encrypts text and given key with AES.
func AESEncrypt(key, text []byte) ([]byte, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
b := base64.StdEncoding.EncodeToString(text)
ciphertext := make([]byte, aes.BlockSize+len(b))
iv := ciphertext[:aes.BlockSize]
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
return nil, err
}
cfb := cipher.NewCFBEncrypter(block, iv)
cfb.XORKeyStream(ciphertext[aes.BlockSize:], []byte(b))
return ciphertext, nil
}
// AESDecrypt decrypts text and given key with AES.
func AESDecrypt(key, text []byte) ([]byte, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
if len(text) < aes.BlockSize {
return nil, errors.New("ciphertext too short")
}
iv := text[:aes.BlockSize]
text = text[aes.BlockSize:]
cfb := cipher.NewCFBDecrypter(block, iv)
cfb.XORKeyStream(text, text)
data, err := base64.StdEncoding.DecodeString(string(text))
if err != nil {
return nil, err
}
return data, nil
}
// IsLetter returns true if the 'l' is an English letter.
func IsLetter(l uint8) bool {
n := (l | 0x20) - 'a'
if n >= 0 && n < 26 {
return true
}
return false
}
// Expand replaces {k} in template with match[k] or subs[atoi(k)] if k is not in match.
func Expand(template string, match map[string]string, subs ...string) string {
var p []byte
var i int
for {
i = strings.Index(template, "{")
if i < 0 {
break
}
p = append(p, template[:i]...)
template = template[i+1:]
i = strings.Index(template, "}")
if s, ok := match[template[:i]]; ok {
p = append(p, s...)
} else {
j, _ := strconv.Atoi(template[:i])
if j >= len(subs) {
p = append(p, []byte("Missing")...)
} else {
p = append(p, subs[j]...)
}
}
template = template[i+1:]
}
p = append(p, template...)
return string(p)
}
// Reverse s string, support unicode
func Reverse(s string) string {
n := len(s)
runes := make([]rune, n)
for _, rune := range s {
n--
runes[n] = rune
}
return string(runes[n:])
}
// RandomCreateBytes generate random []byte by specify chars.
func RandomCreateBytes(n int, alphabets ...byte) []byte {
const alphanum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
var bytes = make([]byte, n)
var randby bool
if num, err := rand.Read(bytes); num != n || err != nil {
r.Seed(time.Now().UnixNano())
randby = true
}
for i, b := range bytes {
if len(alphabets) == 0 {
if randby {
bytes[i] = alphanum[r.Intn(len(alphanum))]
} else {
bytes[i] = alphanum[b%byte(len(alphanum))]
}
} else {
if randby {
bytes[i] = alphabets[r.Intn(len(alphabets))]
} else {
bytes[i] = alphabets[b%byte(len(alphabets))]
}
}
}
return bytes
}
// ToSnakeCase can convert all upper case characters in a string to
// underscore format.
//
// Some samples.
// "FirstName" => "first_name"
// "HTTPServer" => "http_server"
// "NoHTTPS" => "no_https"
// "GO_PATH" => "go_path"
// "GO PATH" => "go_path" // space is converted to underscore.
// "GO-PATH" => "go_path" // hyphen is converted to underscore.
//
// From https://github.com/huandu/xstrings
func ToSnakeCase(str string) string {
if len(str) == 0 {
return ""
}
buf := &bytes.Buffer{}
var prev, r0, r1 rune
var size int
r0 = '_'
for len(str) > 0 {
prev = r0
r0, size = utf8.DecodeRuneInString(str)
str = str[size:]
switch {
case r0 == utf8.RuneError:
buf.WriteByte(byte(str[0]))
case unicode.IsUpper(r0):
if prev != '_' {
buf.WriteRune('_')
}
buf.WriteRune(unicode.ToLower(r0))
if len(str) == 0 {
break
}
r0, size = utf8.DecodeRuneInString(str)
str = str[size:]
if !unicode.IsUpper(r0) {
buf.WriteRune(r0)
break
}
// find next non-upper-case character and insert `_` properly.
// it's designed to convert `HTTPServer` to `http_server`.
// if there are more than 2 adjacent upper case characters in a word,
// treat them as an abbreviation plus a normal word.
for len(str) > 0 {
r1 = r0
r0, size = utf8.DecodeRuneInString(str)
str = str[size:]
if r0 == utf8.RuneError {
buf.WriteRune(unicode.ToLower(r1))
buf.WriteByte(byte(str[0]))
break
}
if !unicode.IsUpper(r0) {
if r0 == '_' || r0 == ' ' || r0 == '-' {
r0 = '_'
buf.WriteRune(unicode.ToLower(r1))
} else {
buf.WriteRune('_')
buf.WriteRune(unicode.ToLower(r1))
buf.WriteRune(r0)
}
break
}
buf.WriteRune(unicode.ToLower(r1))
}
if len(str) == 0 || r0 == '_' {
buf.WriteRune(unicode.ToLower(r0))
break
}
default:
if r0 == ' ' || r0 == '-' {
r0 = '_'
}
buf.WriteRune(r0)
}
}
return buf.String()
}

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// Copyright 2013 com 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 com
import (
"fmt"
"strconv"
"strings"
"time"
)
// Format unix time int64 to string
func Date(ti int64, format string) string {
t := time.Unix(int64(ti), 0)
return DateT(t, format)
}
// Format unix time string to string
func DateS(ts string, format string) string {
i, _ := strconv.ParseInt(ts, 10, 64)
return Date(i, format)
}
// Format time.Time struct to string
// MM - month - 01
// M - month - 1, single bit
// DD - day - 02
// D - day 2
// YYYY - year - 2006
// YY - year - 06
// HH - 24 hours - 03
// H - 24 hours - 3
// hh - 12 hours - 03
// h - 12 hours - 3
// mm - minute - 04
// m - minute - 4
// ss - second - 05
// s - second = 5
func DateT(t time.Time, format string) string {
res := strings.Replace(format, "MM", t.Format("01"), -1)
res = strings.Replace(res, "M", t.Format("1"), -1)
res = strings.Replace(res, "DD", t.Format("02"), -1)
res = strings.Replace(res, "D", t.Format("2"), -1)
res = strings.Replace(res, "YYYY", t.Format("2006"), -1)
res = strings.Replace(res, "YY", t.Format("06"), -1)
res = strings.Replace(res, "HH", fmt.Sprintf("%02d", t.Hour()), -1)
res = strings.Replace(res, "H", fmt.Sprintf("%d", t.Hour()), -1)
res = strings.Replace(res, "hh", t.Format("03"), -1)
res = strings.Replace(res, "h", t.Format("3"), -1)
res = strings.Replace(res, "mm", t.Format("04"), -1)
res = strings.Replace(res, "m", t.Format("4"), -1)
res = strings.Replace(res, "ss", t.Format("05"), -1)
res = strings.Replace(res, "s", t.Format("5"), -1)
return res
}
// DateFormat pattern rules.
var datePatterns = []string{
// year
"Y", "2006", // A full numeric representation of a year, 4 digits Examples: 1999 or 2003
"y", "06", //A two digit representation of a year Examples: 99 or 03
// month
"m", "01", // Numeric representation of a month, with leading zeros 01 through 12
"n", "1", // Numeric representation of a month, without leading zeros 1 through 12
"M", "Jan", // A short textual representation of a month, three letters Jan through Dec
"F", "January", // A full textual representation of a month, such as January or March January through December
// day
"d", "02", // Day of the month, 2 digits with leading zeros 01 to 31
"j", "2", // Day of the month without leading zeros 1 to 31
// week
"D", "Mon", // A textual representation of a day, three letters Mon through Sun
"l", "Monday", // A full textual representation of the day of the week Sunday through Saturday
// time
"g", "3", // 12-hour format of an hour without leading zeros 1 through 12
"G", "15", // 24-hour format of an hour without leading zeros 0 through 23
"h", "03", // 12-hour format of an hour with leading zeros 01 through 12
"H", "15", // 24-hour format of an hour with leading zeros 00 through 23
"a", "pm", // Lowercase Ante meridiem and Post meridiem am or pm
"A", "PM", // Uppercase Ante meridiem and Post meridiem AM or PM
"i", "04", // Minutes with leading zeros 00 to 59
"s", "05", // Seconds, with leading zeros 00 through 59
// time zone
"T", "MST",
"P", "-07:00",
"O", "-0700",
// RFC 2822
"r", time.RFC1123Z,
}
// Parse Date use PHP time format.
func DateParse(dateString, format string) (time.Time, error) {
replacer := strings.NewReplacer(datePatterns...)
format = replacer.Replace(format)
return time.ParseInLocation(format, dateString, time.Local)
}

41
vendor/github.com/Unknwon/com/url.go generated vendored Normal file
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@ -0,0 +1,41 @@
// Copyright 2013 com 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 com
import (
"encoding/base64"
"net/url"
)
// url encode string, is + not %20
func UrlEncode(str string) string {
return url.QueryEscape(str)
}
// url decode string
func UrlDecode(str string) (string, error) {
return url.QueryUnescape(str)
}
// base64 encode
func Base64Encode(str string) string {
return base64.StdEncoding.EncodeToString([]byte(str))
}
// base64 decode
func Base64Decode(str string) (string, error) {
s, e := base64.StdEncoding.DecodeString(str)
return string(s), e
}