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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package model
import (
"encoding/json"
"io"
"regexp"
"strings"
"unicode/utf8"
)
const (
PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW = "direct_channel_show"
PREFERENCE_CATEGORY_TUTORIAL_STEPS = "tutorial_step"
PREFERENCE_CATEGORY_ADVANCED_SETTINGS = "advanced_settings"
PREFERENCE_CATEGORY_DISPLAY_SETTINGS = "display_settings"
PREFERENCE_NAME_COLLAPSE_SETTING = "collapse_previews"
PREFERENCE_CATEGORY_THEME = "theme"
// the name for theme props is the team id
PREFERENCE_CATEGORY_AUTHORIZED_OAUTH_APP = "oauth_app"
// the name for oauth_app is the client_id and value is the current scope
PREFERENCE_CATEGORY_LAST = "last"
PREFERENCE_NAME_LAST_CHANNEL = "channel"
)
type Preference struct {
UserId string `json:"user_id"`
Category string `json:"category"`
Name string `json:"name"`
Value string `json:"value"`
}
func (o *Preference) ToJson() string {
b, err := json.Marshal(o)
if err != nil {
return ""
} else {
return string(b)
}
}
func PreferenceFromJson(data io.Reader) *Preference {
decoder := json.NewDecoder(data)
var o Preference
err := decoder.Decode(&o)
if err == nil {
return &o
} else {
return nil
}
}
func (o *Preference) IsValid() *AppError {
if len(o.UserId) != 26 {
return NewLocAppError("Preference.IsValid", "model.preference.is_valid.id.app_error", nil, "user_id="+o.UserId)
}
if len(o.Category) == 0 || len(o.Category) > 32 {
return NewLocAppError("Preference.IsValid", "model.preference.is_valid.category.app_error", nil, "category="+o.Category)
}
if len(o.Name) > 32 {
return NewLocAppError("Preference.IsValid", "model.preference.is_valid.name.app_error", nil, "name="+o.Name)
}
if utf8.RuneCountInString(o.Value) > 2000 {
return NewLocAppError("Preference.IsValid", "model.preference.is_valid.value.app_error", nil, "value="+o.Value)
}
if o.Category == PREFERENCE_CATEGORY_THEME {
var unused map[string]string
if err := json.NewDecoder(strings.NewReader(o.Value)).Decode(&unused); err != nil {
return NewLocAppError("Preference.IsValid", "model.preference.is_valid.theme.app_error", nil, "value="+o.Value)
}
}
return nil
}
func (o *Preference) PreUpdate() {
if o.Category == PREFERENCE_CATEGORY_THEME {
// decode the value of theme (a map of strings to string) and eliminate any invalid values
var props map[string]string
if err := json.NewDecoder(strings.NewReader(o.Value)).Decode(&props); err != nil {
// just continue, the invalid preference value should get caught by IsValid before saving
return
}
colorPattern := regexp.MustCompile(`^#[0-9a-fA-F]{3}([0-9a-fA-F]{3})?$`)
// blank out any invalid theme values
for name, value := range props {
if name == "image" || name == "type" || name == "codeTheme" {
continue
}
if !colorPattern.MatchString(value) {
props[name] = "#ffffff"
}
}
if b, err := json.Marshal(props); err == nil {
o.Value = string(b)
}
}
}
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