1 files changed, 381 insertions, 0 deletions
diff --git a/vendor/github.com/mattermost/platform/model/utils.go b/vendor/github.com/mattermost/platform/model/utils.go
new file mode 100644
index 00000000..1ce41bb3
--- /dev/null
+++ b/vendor/github.com/mattermost/platform/model/utils.go
@@ -0,0 +1,381 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/base32"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/mail"
+	"net/url"
+	"regexp"
+	"strings"
+	"time"
+
+	goi18n "github.com/nicksnyder/go-i18n/i18n"
+	"github.com/pborman/uuid"
+)
+
+type StringInterface map[string]interface{}
+type StringMap map[string]string
+type StringArray []string
+type EncryptStringMap map[string]string
+
+type AppError struct {
+	Id            string                 `json:"id"`
+	Message       string                 `json:"message"`        // Message to be display to the end user without debugging information
+	DetailedError string                 `json:"detailed_error"` // Internal error string to help the developer
+	RequestId     string                 `json:"request_id"`     // The RequestId that's also set in the header
+	StatusCode    int                    `json:"status_code"`    // The http status code
+	Where         string                 `json:"-"`              // The function where it happened in the form of Struct.Func
+	IsOAuth       bool                   `json:"is_oauth"`       // Whether the error is OAuth specific
+	params        map[string]interface{} `json:"-"`
+}
+
+func (er *AppError) Error() string {
+	return er.Where + ": " + er.Message + ", " + er.DetailedError
+}
+
+func (er *AppError) Translate(T goi18n.TranslateFunc) {
+	if len(er.Message) == 0 {
+		if er.params == nil {
+			er.Message = T(er.Id)
+		} else {
+			er.Message = T(er.Id, er.params)
+		}
+	}
+}
+
+func (er *AppError) ToJson() string {
+	b, err := json.Marshal(er)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+// AppErrorFromJson will decode the input and return an AppError
+func AppErrorFromJson(data io.Reader) *AppError {
+	decoder := json.NewDecoder(data)
+	var er AppError
+	err := decoder.Decode(&er)
+	if err == nil {
+		return &er
+	} else {
+		return NewLocAppError("AppErrorFromJson", "model.utils.decode_json.app_error", nil, err.Error())
+	}
+}
+
+func NewLocAppError(where string, id string, params map[string]interface{}, details string) *AppError {
+	ap := &AppError{}
+	ap.Id = id
+	ap.params = params
+	ap.Where = where
+	ap.DetailedError = details
+	ap.StatusCode = 500
+	ap.IsOAuth = false
+	return ap
+}
+
+var encoding = base32.NewEncoding("ybndrfg8ejkmcpqxot1uwisza345h769")
+
+// NewId is a globally unique identifier.  It is a [A-Z0-9] string 26
+// characters long.  It is a UUID version 4 Guid that is zbased32 encoded
+// with the padding stripped off.
+func NewId() string {
+	var b bytes.Buffer
+	encoder := base32.NewEncoder(encoding, &b)
+	encoder.Write(uuid.NewRandom())
+	encoder.Close()
+	b.Truncate(26) // removes the '==' padding
+	return b.String()
+}
+
+func NewRandomString(length int) string {
+	var b bytes.Buffer
+	str := make([]byte, length+8)
+	rand.Read(str)
+	encoder := base32.NewEncoder(encoding, &b)
+	encoder.Write(str)
+	encoder.Close()
+	b.Truncate(length) // removes the '==' padding
+	return b.String()
+}
+
+// GetMillis is a convience method to get milliseconds since epoch.
+func GetMillis() int64 {
+	return time.Now().UnixNano() / int64(time.Millisecond)
+}
+
+// MapToJson converts a map to a json string
+func MapToJson(objmap map[string]string) string {
+	if b, err := json.Marshal(objmap); err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+// MapFromJson will decode the key/value pair map
+func MapFromJson(data io.Reader) map[string]string {
+	decoder := json.NewDecoder(data)
+
+	var objmap map[string]string
+	if err := decoder.Decode(&objmap); err != nil {
+		return make(map[string]string)
+	} else {
+		return objmap
+	}
+}
+
+func ArrayToJson(objmap []string) string {
+	if b, err := json.Marshal(objmap); err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+func ArrayFromJson(data io.Reader) []string {
+	decoder := json.NewDecoder(data)
+
+	var objmap []string
+	if err := decoder.Decode(&objmap); err != nil {
+		return make([]string, 0)
+	} else {
+		return objmap
+	}
+}
+
+func StringInterfaceToJson(objmap map[string]interface{}) string {
+	if b, err := json.Marshal(objmap); err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+func StringInterfaceFromJson(data io.Reader) map[string]interface{} {
+	decoder := json.NewDecoder(data)
+
+	var objmap map[string]interface{}
+	if err := decoder.Decode(&objmap); err != nil {
+		return make(map[string]interface{})
+	} else {
+		return objmap
+	}
+}
+
+func IsLower(s string) bool {
+	if strings.ToLower(s) == s {
+		return true
+	}
+
+	return false
+}
+
+func IsValidEmail(email string) bool {
+
+	if !IsLower(email) {
+		return false
+	}
+
+	if _, err := mail.ParseAddress(email); err == nil {
+		return true
+	}
+
+	return false
+}
+
+var reservedName = []string{
+	"www",
+	"web",
+	"admin",
+	"support",
+	"notify",
+	"test",
+	"demo",
+	"mail",
+	"team",
+	"channel",
+	"internal",
+	"localhost",
+	"dockerhost",
+	"stag",
+	"post",
+	"cluster",
+	"api",
+	"oauth",
+}
+
+var wwwStart = regexp.MustCompile(`^www`)
+var betaStart = regexp.MustCompile(`^beta`)
+var ciStart = regexp.MustCompile(`^ci`)
+
+func GetSubDomain(s string) (string, string) {
+	s = strings.Replace(s, "http://", "", 1)
+	s = strings.Replace(s, "https://", "", 1)
+
+	match := wwwStart.MatchString(s)
+	if match {
+		return "", ""
+	}
+
+	match = betaStart.MatchString(s)
+	if match {
+		return "", ""
+	}
+
+	match = ciStart.MatchString(s)
+	if match {
+		return "", ""
+	}
+
+	parts := strings.Split(s, ".")
+
+	if len(parts) != 3 {
+		return "", ""
+	}
+
+	return parts[0], parts[1]
+}
+
+func IsValidChannelIdentifier(s string) bool {
+
+	if !IsValidAlphaNum(s, true) {
+		return false
+	}
+
+	if len(s) < 2 {
+		return false
+	}
+
+	return true
+}
+
+var validAlphaNumUnderscore = regexp.MustCompile(`^[a-z0-9]+([a-z\-\_0-9]+|(__)?)[a-z0-9]+$`)
+var validAlphaNum = regexp.MustCompile(`^[a-z0-9]+([a-z\-0-9]+|(__)?)[a-z0-9]+$`)
+
+func IsValidAlphaNum(s string, allowUnderscores bool) bool {
+	var match bool
+	if allowUnderscores {
+		match = validAlphaNumUnderscore.MatchString(s)
+	} else {
+		match = validAlphaNum.MatchString(s)
+	}
+
+	if !match {
+		return false
+	}
+
+	return true
+}
+
+func Etag(parts ...interface{}) string {
+
+	etag := CurrentVersion
+
+	for _, part := range parts {
+		etag += fmt.Sprintf(".%v", part)
+	}
+
+	return etag
+}
+
+var validHashtag = regexp.MustCompile(`^(#[A-Za-zäöüÄÖÜß]+[A-Za-z0-9äöüÄÖÜß_\-]*[A-Za-z0-9äöüÄÖÜß])$`)
+var puncStart = regexp.MustCompile(`^[.,()&$!\?\[\]{}':;\\<>\-+=%^*|]+`)
+var hashtagStart = regexp.MustCompile(`^#{2,}`)
+var puncEnd = regexp.MustCompile(`[.,()&$#!\?\[\]{}':;\\<>\-+=%^*|]+$`)
+var puncEndWildcard = regexp.MustCompile(`[.,()&$#!\?\[\]{}':;\\<>\-+=%^|]+$`)
+
+func ParseHashtags(text string) (string, string) {
+	words := strings.Fields(text)
+
+	hashtagString := ""
+	plainString := ""
+	for _, word := range words {
+		// trim off surrounding punctuation
+		word = puncStart.ReplaceAllString(word, "")
+		word = puncEnd.ReplaceAllString(word, "")
+
+		// and remove extra pound #s
+		word = hashtagStart.ReplaceAllString(word, "#")
+
+		if validHashtag.MatchString(word) {
+			hashtagString += " " + word
+		} else {
+			plainString += " " + word
+		}
+	}
+
+	if len(hashtagString) > 1000 {
+		hashtagString = hashtagString[:999]
+		lastSpace := strings.LastIndex(hashtagString, " ")
+		if lastSpace > -1 {
+			hashtagString = hashtagString[:lastSpace]
+		} else {
+			hashtagString = ""
+		}
+	}
+
+	return strings.TrimSpace(hashtagString), strings.TrimSpace(plainString)
+}
+
+func IsFileExtImage(ext string) bool {
+	ext = strings.ToLower(ext)
+	for _, imgExt := range IMAGE_EXTENSIONS {
+		if ext == imgExt {
+			return true
+		}
+	}
+	return false
+}
+
+func GetImageMimeType(ext string) string {
+	ext = strings.ToLower(ext)
+	if len(IMAGE_MIME_TYPES[ext]) == 0 {
+		return "image"
+	} else {
+		return IMAGE_MIME_TYPES[ext]
+	}
+}
+
+func ClearMentionTags(post string) string {
+	post = strings.Replace(post, "<mention>", "", -1)
+	post = strings.Replace(post, "</mention>", "", -1)
+	return post
+}
+
+var UrlRegex = regexp.MustCompile(`^((?:[a-z]+:\/\/)?(?:(?:[a-z0-9\-]+\.)+(?:[a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel|local|internal))(:[0-9]{1,5})?(?:\/[a-z0-9_\-\.~]+)*(\/([a-z0-9_\-\.]*)(?:\?[a-z0-9+_~\-\.%=&amp;]*)?)?(?:#[a-zA-Z0-9!$&'()*+.=-_~:@/?]*)?)(?:\s+|$)$`)
+var PartialUrlRegex = regexp.MustCompile(`/([A-Za-z0-9]{26})/([A-Za-z0-9]{26})/((?:[A-Za-z0-9]{26})?.+(?:\.[A-Za-z0-9]{3,})?)`)
+
+var SplitRunes = map[rune]bool{',': true, ' ': true, '.': true, '!': true, '?': true, ':': true, ';': true, '\n': true, '<': true, '>': true, '(': true, ')': true, '{': true, '}': true, '[': true, ']': true, '+': true, '/': true, '\\': true}
+
+func IsValidHttpUrl(rawUrl string) bool {
+	if strings.Index(rawUrl, "http://") != 0 && strings.Index(rawUrl, "https://") != 0 {
+		return false
+	}
+
+	if _, err := url.ParseRequestURI(rawUrl); err != nil {
+		return false
+	}
+
+	return true
+}
+
+func IsValidHttpsUrl(rawUrl string) bool {
+	if strings.Index(rawUrl, "https://") != 0 {
+		return false
+	}
+
+	if _, err := url.ParseRequestURI(rawUrl); err != nil {
+		return false
+	}
+
+	return true
+}