writefreely/account.go
Matt Baer e3323d11c8
Merge pull request #777 from writefreely/reset-password
Support resetting password via email

Closes T508
2023-10-03 12:03:08 -04:00

1538 lines
43 KiB
Go

/*
* Copyright © 2018-2021 Musing Studio LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package writefreely
import (
"encoding/json"
"fmt"
"github.com/mailgun/mailgun-go"
"github.com/writefreely/writefreely/spam"
"html/template"
"net/http"
"regexp"
"strconv"
"strings"
"sync"
"time"
"github.com/gorilla/csrf"
"github.com/gorilla/mux"
"github.com/gorilla/sessions"
"github.com/guregu/null/zero"
"github.com/writeas/impart"
"github.com/writeas/web-core/auth"
"github.com/writeas/web-core/data"
"github.com/writeas/web-core/log"
"github.com/writefreely/writefreely/author"
"github.com/writefreely/writefreely/config"
"github.com/writefreely/writefreely/page"
)
type (
userSettings struct {
Username string `schema:"username" json:"username"`
Email string `schema:"email" json:"email"`
NewPass string `schema:"new-pass" json:"new_pass"`
OldPass string `schema:"current-pass" json:"current_pass"`
IsLogOut bool `schema:"logout" json:"logout"`
}
UserPage struct {
page.StaticPage
PageTitle string
Separator template.HTML
IsAdmin bool
CanInvite bool
CollAlias string
}
)
func NewUserPage(app *App, r *http.Request, u *User, title string, flashes []string) *UserPage {
up := &UserPage{
StaticPage: pageForReq(app, r),
PageTitle: title,
}
up.Username = u.Username
up.Flashes = flashes
up.Path = r.URL.Path
up.IsAdmin = u.IsAdmin()
up.CanInvite = canUserInvite(app.cfg, up.IsAdmin)
return up
}
func canUserInvite(cfg *config.Config, isAdmin bool) bool {
return cfg.App.UserInvites != "" &&
(isAdmin || cfg.App.UserInvites != "admin")
}
func (up *UserPage) SetMessaging(u *User) {
// up.NeedsAuth = app.db.DoesUserNeedAuth(u.ID)
}
const (
loginAttemptExpiration = 3 * time.Second
)
var actuallyUsernameReg = regexp.MustCompile("username is actually ([a-z0-9\\-]+)\\. Please try that, instead")
func apiSignup(app *App, w http.ResponseWriter, r *http.Request) error {
_, err := signup(app, w, r)
return err
}
func signup(app *App, w http.ResponseWriter, r *http.Request) (*AuthUser, error) {
if app.cfg.App.DisablePasswordAuth {
err := ErrDisabledPasswordAuth
return nil, err
}
reqJSON := IsJSON(r)
// Get params
var ur userRegistration
if reqJSON {
decoder := json.NewDecoder(r.Body)
err := decoder.Decode(&ur)
if err != nil {
log.Error("Couldn't parse signup JSON request: %v\n", err)
return nil, ErrBadJSON
}
} else {
// Check if user is already logged in
u := getUserSession(app, r)
if u != nil {
return &AuthUser{User: u}, nil
}
err := r.ParseForm()
if err != nil {
log.Error("Couldn't parse signup form request: %v\n", err)
return nil, ErrBadFormData
}
err = app.formDecoder.Decode(&ur, r.PostForm)
if err != nil {
log.Error("Couldn't decode signup form request: %v\n", err)
return nil, ErrBadFormData
}
}
return signupWithRegistration(app, ur, w, r)
}
func signupWithRegistration(app *App, signup userRegistration, w http.ResponseWriter, r *http.Request) (*AuthUser, error) {
reqJSON := IsJSON(r)
// Validate required params (alias)
if signup.Alias == "" {
return nil, impart.HTTPError{http.StatusBadRequest, "A username is required."}
}
if signup.Pass == "" {
return nil, impart.HTTPError{http.StatusBadRequest, "A password is required."}
}
var desiredUsername string
if signup.Normalize {
// With this option we simply conform the username to what we expect
// without complaining. Since they might've done something funny, like
// enter: write.as/Way Out There, we'll use their raw input for the new
// collection name and sanitize for the slug / username.
desiredUsername = signup.Alias
signup.Alias = getSlug(signup.Alias, "")
}
if !author.IsValidUsername(app.cfg, signup.Alias) {
// Ensure the username is syntactically correct.
return nil, impart.HTTPError{http.StatusPreconditionFailed, "Username is reserved or isn't valid. It must be at least 3 characters long, and can only include letters, numbers, and hyphens."}
}
// Handle empty optional params
hashedPass, err := auth.HashPass([]byte(signup.Pass))
if err != nil {
return nil, impart.HTTPError{http.StatusInternalServerError, "Could not create password hash."}
}
// Create struct to insert
u := &User{
Username: signup.Alias,
HashedPass: hashedPass,
HasPass: true,
Email: prepareUserEmail(signup.Email, app.keys.EmailKey),
Created: time.Now().Truncate(time.Second).UTC(),
}
// Create actual user
if err := app.db.CreateUser(app.cfg, u, desiredUsername, signup.Description); err != nil {
return nil, err
}
// Log invite if needed
if signup.InviteCode != "" {
err = app.db.CreateInvitedUser(signup.InviteCode, u.ID)
if err != nil {
return nil, err
}
}
// Add back unencrypted data for response
if signup.Email != "" {
u.Email.String = signup.Email
}
resUser := &AuthUser{
User: u,
}
title := signup.Alias
if signup.Normalize {
title = desiredUsername
}
resUser.Collections = &[]Collection{
{
Alias: signup.Alias,
Title: title,
Description: signup.Description,
},
}
var coll *Collection
if signup.Monetization != "" {
if coll == nil {
coll, err = app.db.GetCollection(signup.Alias)
if err != nil {
log.Error("Unable to get new collection '%s' for monetization on signup: %v", signup.Alias, err)
return nil, err
}
}
err = app.db.SetCollectionAttribute(coll.ID, "monetization_pointer", signup.Monetization)
if err != nil {
log.Error("Unable to add monetization on signup: %v", err)
return nil, err
}
coll.Monetization = signup.Monetization
}
var token string
if reqJSON && !signup.Web {
token, err = app.db.GetAccessToken(u.ID)
if err != nil {
return nil, impart.HTTPError{http.StatusInternalServerError, "Could not create access token. Try re-authenticating."}
}
resUser.AccessToken = token
} else {
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
// The cookie should still save, even if there's an error.
// Source: https://github.com/gorilla/sessions/issues/16#issuecomment-143642144
log.Error("Session: %v; ignoring", err)
}
session.Values[cookieUserVal] = resUser.User.Cookie()
err = session.Save(r, w)
if err != nil {
log.Error("Couldn't save session: %v", err)
return nil, err
}
}
if reqJSON {
return resUser, impart.WriteSuccess(w, resUser, http.StatusCreated)
}
return resUser, nil
}
func viewLogout(app *App, w http.ResponseWriter, r *http.Request) error {
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
return ErrInternalCookieSession
}
// Ensure user has an email or password set before they go, so they don't
// lose access to their account.
val := session.Values[cookieUserVal]
var u = &User{}
var ok bool
if u, ok = val.(*User); !ok {
log.Error("Error casting user object on logout. Vals: %+v Resetting cookie.", session.Values)
err = session.Save(r, w)
if err != nil {
log.Error("Couldn't save session on logout: %v", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to save cookie session."}
}
return impart.HTTPError{http.StatusFound, "/"}
}
u, err = app.db.GetUserByID(u.ID)
if err != nil && err != ErrUserNotFound {
return impart.HTTPError{http.StatusInternalServerError, "Unable to fetch user information."}
}
session.Options.MaxAge = -1
err = session.Save(r, w)
if err != nil {
log.Error("Couldn't save session on logout: %v", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to save cookie session."}
}
return impart.HTTPError{http.StatusFound, "/"}
}
func handleAPILogout(app *App, w http.ResponseWriter, r *http.Request) error {
accessToken := r.Header.Get("Authorization")
if accessToken == "" {
return ErrNoAccessToken
}
t := auth.GetToken(accessToken)
if len(t) == 0 {
return ErrNoAccessToken
}
err := app.db.DeleteToken(t)
if err != nil {
return err
}
return impart.HTTPError{Status: http.StatusNoContent}
}
func viewLogin(app *App, w http.ResponseWriter, r *http.Request) error {
var earlyError string
oneTimeToken := r.FormValue("with")
if oneTimeToken != "" {
log.Info("Calling login with one-time token.")
err := login(app, w, r)
if err != nil {
log.Info("Received error: %v", err)
earlyError = fmt.Sprintf("%s", err)
}
}
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
// Ignore this
log.Error("Unable to get session; ignoring: %v", err)
}
p := &struct {
page.StaticPage
*OAuthButtons
To string
Message template.HTML
Flashes []template.HTML
EmailEnabled bool
LoginUsername string
}{
StaticPage: pageForReq(app, r),
OAuthButtons: NewOAuthButtons(app.Config()),
To: r.FormValue("to"),
Message: template.HTML(""),
Flashes: []template.HTML{},
EmailEnabled: app.cfg.Email.Enabled(),
LoginUsername: getTempInfo(app, "login-user", r, w),
}
if earlyError != "" {
p.Flashes = append(p.Flashes, template.HTML(earlyError))
}
// Display any error messages
flashes, _ := getSessionFlashes(app, w, r, session)
for _, flash := range flashes {
p.Flashes = append(p.Flashes, template.HTML(flash))
}
err = pages["login.tmpl"].ExecuteTemplate(w, "base", p)
if err != nil {
log.Error("Unable to render login: %v", err)
return err
}
return nil
}
func webLogin(app *App, w http.ResponseWriter, r *http.Request) error {
err := login(app, w, r)
if err != nil {
username := r.FormValue("alias")
// Login request was unsuccessful; save the error in the session and redirect them
if err, ok := err.(impart.HTTPError); ok {
session, _ := app.sessionStore.Get(r, cookieName)
if session != nil {
session.AddFlash(err.Message)
session.Save(r, w)
}
if m := actuallyUsernameReg.FindStringSubmatch(err.Message); len(m) > 0 {
// Retain fixed username recommendation for the login form
username = m[1]
}
}
// Pass along certain information
saveTempInfo(app, "login-user", username, r, w)
// Retain post-login URL if one was given
redirectTo := "/login"
postLoginRedirect := r.FormValue("to")
if postLoginRedirect != "" {
redirectTo += "?to=" + postLoginRedirect
}
log.Error("Unable to login: %v", err)
return impart.HTTPError{http.StatusTemporaryRedirect, redirectTo}
}
return nil
}
var loginAttemptUsers = sync.Map{}
func login(app *App, w http.ResponseWriter, r *http.Request) error {
reqJSON := IsJSON(r)
oneTimeToken := r.FormValue("with")
verbose := r.FormValue("all") == "true" || r.FormValue("verbose") == "1" || r.FormValue("verbose") == "true" || (reqJSON && oneTimeToken != "")
redirectTo := r.FormValue("to")
if redirectTo == "" {
if app.cfg.App.SingleUser {
redirectTo = "/me/new"
} else {
redirectTo = "/"
}
}
var u *User
var err error
var signin userCredentials
if app.cfg.App.DisablePasswordAuth {
err := ErrDisabledPasswordAuth
return err
}
// Log in with one-time token if one is given
if oneTimeToken != "" {
log.Info("Login: Logging user in via token.")
userID := app.db.GetUserID(oneTimeToken)
if userID == -1 {
log.Error("Login: Got user -1 from token")
err := ErrBadAccessToken
err.Message = "Expired or invalid login code."
return err
}
log.Info("Login: Found user %d.", userID)
u, err = app.db.GetUserByID(userID)
if err != nil {
log.Error("Unable to fetch user on one-time token login: %v", err)
return impart.HTTPError{http.StatusInternalServerError, "There was an error retrieving the user you want."}
}
log.Info("Login: Got user via token")
} else {
// Get params
if reqJSON {
decoder := json.NewDecoder(r.Body)
err := decoder.Decode(&signin)
if err != nil {
log.Error("Couldn't parse signin JSON request: %v\n", err)
return ErrBadJSON
}
} else {
err := r.ParseForm()
if err != nil {
log.Error("Couldn't parse signin form request: %v\n", err)
return ErrBadFormData
}
err = app.formDecoder.Decode(&signin, r.PostForm)
if err != nil {
log.Error("Couldn't decode signin form request: %v\n", err)
return ErrBadFormData
}
}
log.Info("Login: Attempting login for '%s'", signin.Alias)
// Validate required params (all)
if signin.Alias == "" {
msg := "Parameter `alias` required."
if signin.Web {
msg = "A username is required."
}
return impart.HTTPError{http.StatusBadRequest, msg}
}
if !signin.EmailLogin && signin.Pass == "" {
msg := "Parameter `pass` required."
if signin.Web {
msg = "A password is required."
}
return impart.HTTPError{http.StatusBadRequest, msg}
}
// Prevent excessive login attempts on the same account
// Skip this check in dev environment
if !app.cfg.Server.Dev {
now := time.Now()
attemptExp, att := loginAttemptUsers.LoadOrStore(signin.Alias, now.Add(loginAttemptExpiration))
if att {
if attemptExpTime, ok := attemptExp.(time.Time); ok {
if attemptExpTime.After(now) {
// This user attempted previously, and the period hasn't expired yet
return impart.HTTPError{http.StatusTooManyRequests, "You're doing that too much."}
} else {
// This user attempted previously, but the time expired; free up space
loginAttemptUsers.Delete(signin.Alias)
}
} else {
log.Error("Unable to cast expiration to time")
}
}
}
// Retrieve password
u, err = app.db.GetUserForAuth(signin.Alias)
if err != nil {
log.Info("Unable to getUserForAuth on %s: %v", signin.Alias, err)
if strings.IndexAny(signin.Alias, "@") > 0 {
log.Info("Suggesting: %s", ErrUserNotFoundEmail.Message)
return ErrUserNotFoundEmail
}
return err
}
// Authenticate
if u.Email.String == "" {
// User has no email set, so check if they haven't added a password, either,
// so we can return a more helpful error message.
if hasPass, _ := app.db.IsUserPassSet(u.ID); !hasPass {
log.Info("Tried logging into %s, but no password or email.", signin.Alias)
return impart.HTTPError{http.StatusPreconditionFailed, "This user never added a password or email address. Please contact us for help."}
}
}
if len(u.HashedPass) == 0 {
return impart.HTTPError{http.StatusUnauthorized, "This user never set a password. Perhaps try logging in via OAuth?"}
}
if !auth.Authenticated(u.HashedPass, []byte(signin.Pass)) {
return impart.HTTPError{http.StatusUnauthorized, "Incorrect password."}
}
}
if reqJSON && !signin.Web {
var token string
if r.Header.Get("User-Agent") == "" {
// Get last created token when User-Agent is empty
token = app.db.FetchLastAccessToken(u.ID)
if token == "" {
token, err = app.db.GetAccessToken(u.ID)
}
} else {
token, err = app.db.GetAccessToken(u.ID)
}
if err != nil {
log.Error("Login: Unable to create access token: %v", err)
return impart.HTTPError{http.StatusInternalServerError, "Could not create access token. Try re-authenticating."}
}
resUser := getVerboseAuthUser(app, token, u, verbose)
return impart.WriteSuccess(w, resUser, http.StatusOK)
}
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
// The cookie should still save, even if there's an error.
log.Error("Login: Session: %v; ignoring", err)
}
// Remove unwanted data
session.Values[cookieUserVal] = u.Cookie()
err = session.Save(r, w)
if err != nil {
log.Error("Login: Couldn't save session: %v", err)
// TODO: return error
}
// Send success
if reqJSON {
return impart.WriteSuccess(w, &AuthUser{User: u}, http.StatusOK)
}
log.Info("Login: Redirecting to %s", redirectTo)
w.Header().Set("Location", redirectTo)
w.WriteHeader(http.StatusFound)
return nil
}
func getVerboseAuthUser(app *App, token string, u *User, verbose bool) *AuthUser {
resUser := &AuthUser{
AccessToken: token,
User: u,
}
// Fetch verbose user data if requested
if verbose {
posts, err := app.db.GetUserPosts(u)
if err != nil {
log.Error("Login: Unable to get user posts: %v", err)
}
colls, err := app.db.GetCollections(u, app.cfg.App.Host)
if err != nil {
log.Error("Login: Unable to get user collections: %v", err)
}
passIsSet, err := app.db.IsUserPassSet(u.ID)
if err != nil {
// TODO: correct error message
log.Error("Login: Unable to get user collections: %v", err)
}
resUser.Posts = posts
resUser.Collections = colls
resUser.User.HasPass = passIsSet
}
return resUser
}
func viewExportOptions(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
// Fetch extra user data
p := NewUserPage(app, r, u, "Export", nil)
showUserPage(w, "export", p)
return nil
}
func viewExportPosts(app *App, w http.ResponseWriter, r *http.Request) ([]byte, string, error) {
var filename string
var u = &User{}
reqJSON := IsJSON(r)
if reqJSON {
// Use given Authorization header
accessToken := r.Header.Get("Authorization")
if accessToken == "" {
return nil, filename, ErrNoAccessToken
}
userID := app.db.GetUserID(accessToken)
if userID == -1 {
return nil, filename, ErrBadAccessToken
}
var err error
u, err = app.db.GetUserByID(userID)
if err != nil {
return nil, filename, impart.HTTPError{http.StatusInternalServerError, "Unable to retrieve requested user."}
}
} else {
// Use user cookie
session, err := app.sessionStore.Get(r, cookieName)
if err != nil {
// The cookie should still save, even if there's an error.
log.Error("Session: %v; ignoring", err)
}
val := session.Values[cookieUserVal]
var ok bool
if u, ok = val.(*User); !ok {
return nil, filename, ErrNotLoggedIn
}
}
filename = u.Username + "-posts-" + time.Now().Truncate(time.Second).UTC().Format("200601021504")
// Fetch data we're exporting
var err error
var data []byte
posts, err := app.db.GetUserPosts(u)
if err != nil {
return data, filename, err
}
// Export as CSV
if strings.HasSuffix(r.URL.Path, ".csv") {
data = exportPostsCSV(app.cfg.App.Host, u, posts)
return data, filename, err
}
if strings.HasSuffix(r.URL.Path, ".zip") {
data = exportPostsZip(u, posts)
return data, filename, err
}
if r.FormValue("pretty") == "1" {
data, err = json.MarshalIndent(posts, "", "\t")
} else {
data, err = json.Marshal(posts)
}
return data, filename, err
}
func viewExportFull(app *App, w http.ResponseWriter, r *http.Request) ([]byte, string, error) {
var err error
filename := ""
u := getUserSession(app, r)
if u == nil {
return nil, filename, ErrNotLoggedIn
}
filename = u.Username + "-" + time.Now().Truncate(time.Second).UTC().Format("200601021504")
exportUser := compileFullExport(app, u)
var data []byte
if r.FormValue("pretty") == "1" {
data, err = json.MarshalIndent(exportUser, "", "\t")
} else {
data, err = json.Marshal(exportUser)
}
return data, filename, err
}
func viewMeAPI(app *App, w http.ResponseWriter, r *http.Request) error {
reqJSON := IsJSON(r)
uObj := struct {
ID int64 `json:"id,omitempty"`
Username string `json:"username,omitempty"`
}{}
var err error
if reqJSON {
_, uObj.Username, err = app.db.GetUserDataFromToken(r.Header.Get("Authorization"))
if err != nil {
return err
}
} else {
u := getUserSession(app, r)
if u == nil {
return impart.WriteSuccess(w, uObj, http.StatusOK)
}
uObj.Username = u.Username
}
return impart.WriteSuccess(w, uObj, http.StatusOK)
}
func viewMyPostsAPI(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
reqJSON := IsJSON(r)
if !reqJSON {
return ErrBadRequestedType
}
isAnonPosts := r.FormValue("anonymous") == "1"
if isAnonPosts {
pageStr := r.FormValue("page")
pg, err := strconv.Atoi(pageStr)
if err != nil {
log.Error("Error parsing page parameter '%s': %s", pageStr, err)
pg = 1
}
p, err := app.db.GetAnonymousPosts(u, pg)
if err != nil {
return err
}
return impart.WriteSuccess(w, p, http.StatusOK)
}
var err error
p := GetPostsCache(u.ID)
if p == nil {
userPostsCache.Lock()
if userPostsCache.users[u.ID].ready == nil {
userPostsCache.users[u.ID] = postsCacheItem{ready: make(chan struct{})}
userPostsCache.Unlock()
p, err = app.db.GetUserPosts(u)
if err != nil {
return err
}
CachePosts(u.ID, p)
} else {
userPostsCache.Unlock()
<-userPostsCache.users[u.ID].ready
p = GetPostsCache(u.ID)
}
}
return impart.WriteSuccess(w, p, http.StatusOK)
}
func viewMyCollectionsAPI(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
reqJSON := IsJSON(r)
if !reqJSON {
return ErrBadRequestedType
}
p, err := app.db.GetCollections(u, app.cfg.App.Host)
if err != nil {
return err
}
return impart.WriteSuccess(w, p, http.StatusOK)
}
func viewArticles(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
p, err := app.db.GetAnonymousPosts(u, 1)
if err != nil {
log.Error("unable to fetch anon posts: %v", err)
}
// nil-out AnonymousPosts slice for easy detection in the template
if p != nil && len(*p) == 0 {
p = nil
}
f, err := getSessionFlashes(app, w, r, nil)
if err != nil {
log.Error("unable to fetch flashes: %v", err)
}
c, err := app.db.GetPublishableCollections(u, app.cfg.App.Host)
if err != nil {
log.Error("unable to fetch collections: %v", err)
}
silenced, err := app.db.IsUserSilenced(u.ID)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("view articles: %v", err)
}
d := struct {
*UserPage
AnonymousPosts *[]PublicPost
Collections *[]Collection
Silenced bool
}{
UserPage: NewUserPage(app, r, u, u.Username+"'s Posts", f),
AnonymousPosts: p,
Collections: c,
Silenced: silenced,
}
d.UserPage.SetMessaging(u)
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Header().Set("Expires", "Thu, 04 Oct 1990 20:00:00 GMT")
showUserPage(w, "articles", d)
return nil
}
func viewCollections(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
c, err := app.db.GetCollections(u, app.cfg.App.Host)
if err != nil {
log.Error("unable to fetch collections: %v", err)
return fmt.Errorf("No collections")
}
f, _ := getSessionFlashes(app, w, r, nil)
uc, _ := app.db.GetUserCollectionCount(u.ID)
// TODO: handle any errors
silenced, err := app.db.IsUserSilenced(u.ID)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("view collections: %v", err)
return fmt.Errorf("view collections: %v", err)
}
d := struct {
*UserPage
Collections *[]Collection
UsedCollections, TotalCollections int
NewBlogsDisabled bool
Silenced bool
}{
UserPage: NewUserPage(app, r, u, u.Username+"'s Blogs", f),
Collections: c,
UsedCollections: int(uc),
NewBlogsDisabled: !app.cfg.App.CanCreateBlogs(uc),
Silenced: silenced,
}
d.UserPage.SetMessaging(u)
showUserPage(w, "collections", d)
return nil
}
func viewEditCollection(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
c, err := app.db.GetCollection(vars["collection"])
if err != nil {
return err
}
if c.OwnerID != u.ID {
return ErrCollectionNotFound
}
silenced, err := app.db.IsUserSilenced(u.ID)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("view edit collection %v", err)
return fmt.Errorf("view edit collection: %v", err)
}
flashes, _ := getSessionFlashes(app, w, r, nil)
obj := struct {
*UserPage
*Collection
Silenced bool
config.EmailCfg
LetterReplyTo string
}{
UserPage: NewUserPage(app, r, u, "Edit "+c.DisplayTitle(), flashes),
Collection: c,
Silenced: silenced,
EmailCfg: app.cfg.Email,
}
obj.UserPage.CollAlias = c.Alias
if obj.EmailCfg.Enabled() {
obj.LetterReplyTo = app.db.GetCollectionAttribute(c.ID, collAttrLetterReplyTo)
}
showUserPage(w, "collection", obj)
return nil
}
func updateSettings(app *App, w http.ResponseWriter, r *http.Request) error {
reqJSON := IsJSON(r)
var s userSettings
var u *User
var sess *sessions.Session
var err error
if reqJSON {
accessToken := r.Header.Get("Authorization")
if accessToken == "" {
return ErrNoAccessToken
}
u, err = app.db.GetAPIUser(accessToken)
if err != nil {
return ErrBadAccessToken
}
decoder := json.NewDecoder(r.Body)
err := decoder.Decode(&s)
if err != nil {
log.Error("Couldn't parse settings JSON request: %v\n", err)
return ErrBadJSON
}
// Prevent all username updates
// TODO: support changing username via JSON API request
s.Username = ""
} else {
u, sess = getUserAndSession(app, r)
if u == nil {
return ErrNotLoggedIn
}
err := r.ParseForm()
if err != nil {
log.Error("Couldn't parse settings form request: %v\n", err)
return ErrBadFormData
}
err = app.formDecoder.Decode(&s, r.PostForm)
if err != nil {
log.Error("Couldn't decode settings form request: %v\n", err)
return ErrBadFormData
}
}
// Do update
postUpdateReturn := r.FormValue("return")
redirectTo := "/me/settings"
if s.IsLogOut {
redirectTo += "?logout=1"
} else if postUpdateReturn != "" {
redirectTo = postUpdateReturn
}
// Only do updates on values we need
if s.Username != "" && s.Username == u.Username {
// Username hasn't actually changed; blank it out
s.Username = ""
}
err = app.db.ChangeSettings(app, u, &s)
if err != nil {
if reqJSON {
return err
}
if err, ok := err.(impart.HTTPError); ok {
addSessionFlash(app, w, r, err.Message, nil)
}
} else {
// Successful update.
if reqJSON {
return impart.WriteSuccess(w, u, http.StatusOK)
}
if s.IsLogOut {
redirectTo = "/me/logout"
} else {
sess.Values[cookieUserVal] = u.Cookie()
addSessionFlash(app, w, r, "Account updated.", nil)
}
}
w.Header().Set("Location", redirectTo)
w.WriteHeader(http.StatusFound)
return nil
}
func updatePassphrase(app *App, w http.ResponseWriter, r *http.Request) error {
accessToken := r.Header.Get("Authorization")
if accessToken == "" {
return ErrNoAccessToken
}
curPass := r.FormValue("current")
newPass := r.FormValue("new")
// Ensure a new password is given (always required)
if newPass == "" {
return impart.HTTPError{http.StatusBadRequest, "Provide a new password."}
}
userID, sudo := app.db.GetUserIDPrivilege(accessToken)
if userID == -1 {
return ErrBadAccessToken
}
// Ensure a current password is given if the access token doesn't have sudo
// privileges.
if !sudo && curPass == "" {
return impart.HTTPError{http.StatusBadRequest, "Provide current password."}
}
// Hash the new password
hashedPass, err := auth.HashPass([]byte(newPass))
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, "Could not create password hash."}
}
// Do update
err = app.db.ChangePassphrase(userID, sudo, curPass, hashedPass)
if err != nil {
return err
}
return impart.WriteSuccess(w, struct{}{}, http.StatusOK)
}
func viewStats(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
var c *Collection
var err error
vars := mux.Vars(r)
alias := vars["collection"]
if alias != "" {
c, err = app.db.GetCollection(alias)
if err != nil {
return err
}
if c.OwnerID != u.ID {
return ErrCollectionNotFound
}
c.hostName = app.cfg.App.Host
}
topPosts, err := app.db.GetTopPosts(u, alias, c.hostName)
if err != nil {
log.Error("Unable to get top posts: %v", err)
return err
}
flashes, _ := getSessionFlashes(app, w, r, nil)
titleStats := ""
if c != nil {
titleStats = c.DisplayTitle() + " "
}
silenced, err := app.db.IsUserSilenced(u.ID)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("view stats: %v", err)
return err
}
obj := struct {
*UserPage
VisitsBlog string
Collection *Collection
TopPosts *[]PublicPost
APFollowers int
EmailEnabled bool
EmailSubscribers int
Silenced bool
}{
UserPage: NewUserPage(app, r, u, titleStats+"Stats", flashes),
VisitsBlog: alias,
Collection: c,
TopPosts: topPosts,
EmailEnabled: app.cfg.Email.Enabled(),
Silenced: silenced,
}
obj.UserPage.CollAlias = c.Alias
if app.cfg.App.Federation {
folls, err := app.db.GetAPFollowers(c)
if err != nil {
return err
}
obj.APFollowers = len(*folls)
}
if obj.EmailEnabled {
subs, err := app.db.GetEmailSubscribers(c.ID, true)
if err != nil {
return err
}
obj.EmailSubscribers = len(subs)
}
showUserPage(w, "stats", obj)
return nil
}
func handleViewSubscribers(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
c, err := app.db.GetCollection(vars["collection"])
if err != nil {
return err
}
filter := r.FormValue("filter")
flashes, _ := getSessionFlashes(app, w, r, nil)
obj := struct {
*UserPage
Collection CollectionNav
EmailSubs []*EmailSubscriber
Followers *[]RemoteUser
Silenced bool
Filter string
FederationEnabled bool
CanEmailSub bool
CanAddSubs bool
EmailSubsEnabled bool
}{
UserPage: NewUserPage(app, r, u, c.DisplayTitle()+" Subscribers", flashes),
Collection: CollectionNav{
Collection: c,
Path: r.URL.Path,
SingleUser: app.cfg.App.SingleUser,
},
Silenced: u.IsSilenced(),
Filter: filter,
FederationEnabled: app.cfg.App.Federation,
CanEmailSub: app.cfg.Email.Enabled(),
EmailSubsEnabled: c.EmailSubsEnabled(),
}
obj.Followers, err = app.db.GetAPFollowers(c)
if err != nil {
return err
}
obj.EmailSubs, err = app.db.GetEmailSubscribers(c.ID, true)
if err != nil {
return err
}
if obj.Filter == "" {
// Set permission to add email subscribers
//obj.CanAddSubs = app.db.GetUserAttribute(c.OwnerID, userAttrCanAddEmailSubs) == "1"
}
showUserPage(w, "subscribers", obj)
return nil
}
func viewSettings(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
fullUser, err := app.db.GetUserByID(u.ID)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("Unable to get user for settings: %s", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to retrieve user data. The humans have been alerted."}
}
passIsSet, err := app.db.IsUserPassSet(u.ID)
if err != nil {
log.Error("Unable to get isUserPassSet for settings: %s", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to retrieve user data. The humans have been alerted."}
}
flashes, _ := getSessionFlashes(app, w, r, nil)
enableOauthSlack := app.Config().SlackOauth.ClientID != ""
enableOauthWriteAs := app.Config().WriteAsOauth.ClientID != ""
enableOauthGitLab := app.Config().GitlabOauth.ClientID != ""
enableOauthGeneric := app.Config().GenericOauth.ClientID != ""
enableOauthGitea := app.Config().GiteaOauth.ClientID != ""
oauthAccounts, err := app.db.GetOauthAccounts(r.Context(), u.ID)
if err != nil {
log.Error("Unable to get oauth accounts for settings: %s", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to retrieve user data. The humans have been alerted."}
}
for idx, oauthAccount := range oauthAccounts {
switch oauthAccount.Provider {
case "slack":
enableOauthSlack = false
case "write.as":
enableOauthWriteAs = false
case "gitlab":
enableOauthGitLab = false
case "generic":
oauthAccounts[idx].DisplayName = app.Config().GenericOauth.DisplayName
oauthAccounts[idx].AllowDisconnect = app.Config().GenericOauth.AllowDisconnect
enableOauthGeneric = false
case "gitea":
enableOauthGitea = false
}
}
displayOauthSection := enableOauthSlack || enableOauthWriteAs || enableOauthGitLab || enableOauthGeneric || enableOauthGitea || len(oauthAccounts) > 0
obj := struct {
*UserPage
Email string
HasPass bool
IsLogOut bool
Silenced bool
CSRFField template.HTML
OauthSection bool
OauthAccounts []oauthAccountInfo
OauthSlack bool
OauthWriteAs bool
OauthGitLab bool
GitLabDisplayName string
OauthGeneric bool
OauthGenericDisplayName string
OauthGitea bool
GiteaDisplayName string
}{
UserPage: NewUserPage(app, r, u, "Account Settings", flashes),
Email: fullUser.EmailClear(app.keys),
HasPass: passIsSet,
IsLogOut: r.FormValue("logout") == "1",
Silenced: fullUser.IsSilenced(),
CSRFField: csrf.TemplateField(r),
OauthSection: displayOauthSection,
OauthAccounts: oauthAccounts,
OauthSlack: enableOauthSlack,
OauthWriteAs: enableOauthWriteAs,
OauthGitLab: enableOauthGitLab,
GitLabDisplayName: config.OrDefaultString(app.Config().GitlabOauth.DisplayName, gitlabDisplayName),
OauthGeneric: enableOauthGeneric,
OauthGenericDisplayName: config.OrDefaultString(app.Config().GenericOauth.DisplayName, genericOauthDisplayName),
OauthGitea: enableOauthGitea,
GiteaDisplayName: config.OrDefaultString(app.Config().GiteaOauth.DisplayName, giteaDisplayName),
}
showUserPage(w, "settings", obj)
return nil
}
func viewResetPassword(app *App, w http.ResponseWriter, r *http.Request) error {
token := r.FormValue("t")
resetting := false
var userID int64 = 0
if token != "" {
// Show new password page
userID = app.db.GetUserFromPasswordReset(token)
if userID == 0 {
return impart.HTTPError{http.StatusNotFound, ""}
}
resetting = true
}
if r.Method == http.MethodPost {
newPass := r.FormValue("new-pass")
if newPass == "" {
// Send password reset email
return handleResetPasswordInit(app, w, r)
}
// Do actual password reset
// Assumes token has been validated above
err := doAutomatedPasswordChange(app, userID, newPass)
if err != nil {
return err
}
err = app.db.ConsumePasswordResetToken(token)
if err != nil {
log.Error("Couldn't consume token %s for user %d!!! %s", token, userID, err)
}
addSessionFlash(app, w, r, "Your password was reset. Now you can log in below.", nil)
return impart.HTTPError{http.StatusFound, "/login"}
}
f, _ := getSessionFlashes(app, w, r, nil)
// Show reset password page
d := struct {
page.StaticPage
Flashes []string
EmailEnabled bool
CSRFField template.HTML
Token string
IsResetting bool
IsSent bool
}{
StaticPage: pageForReq(app, r),
Flashes: f,
EmailEnabled: app.cfg.Email.Enabled(),
CSRFField: csrf.TemplateField(r),
Token: token,
IsResetting: resetting,
IsSent: r.FormValue("sent") == "1",
}
err := pages["reset.tmpl"].ExecuteTemplate(w, "base", d)
if err != nil {
log.Error("Unable to render password reset page: %v", err)
return err
}
return err
}
func doAutomatedPasswordChange(app *App, userID int64, newPass string) error {
// Do password reset
hashedPass, err := auth.HashPass([]byte(newPass))
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, "Could not create password hash."}
}
// Do update
err = app.db.ChangePassphrase(userID, true, "", hashedPass)
if err != nil {
return err
}
return nil
}
func handleResetPasswordInit(app *App, w http.ResponseWriter, r *http.Request) error {
returnLoc := impart.HTTPError{http.StatusFound, "/reset"}
if !app.cfg.Email.Enabled() {
// Email isn't configured, so there's nothing to do; send back to the reset form, where they'll get an explanation
return returnLoc
}
ip := spam.GetIP(r)
alias := r.FormValue("alias")
u, err := app.db.GetUserForAuth(alias)
if err != nil {
if strings.IndexAny(alias, "@") > 0 {
addSessionFlash(app, w, r, ErrUserNotFoundEmail.Message, nil)
return returnLoc
}
addSessionFlash(app, w, r, ErrUserNotFound.Message, nil)
return returnLoc
}
if u.IsAdmin() {
// Prevent any reset emails on admin accounts
log.Error("Admin reset attempt", `Someone just tried to reset the password for an admin (ID %d - %s). IP address: %s`, u.ID, u.Username, ip)
return returnLoc
}
if u.Email.String == "" {
err := impart.HTTPError{http.StatusPreconditionFailed, "User doesn't have an email address. Please contact us (" + app.cfg.App.Host + "/contact) to reset your password."}
addSessionFlash(app, w, r, err.Message, nil)
return returnLoc
}
if isSet, _ := app.db.IsUserPassSet(u.ID); !isSet {
err = loginViaEmail(app, u.Username, "/me/settings")
if err != nil {
return err
}
addSessionFlash(app, w, r, "We've emailed you a link to log in with.", nil)
return returnLoc
}
token, err := app.db.CreatePasswordResetToken(u.ID)
if err != nil {
log.Error("Error resetting password: %s", err)
addSessionFlash(app, w, r, ErrInternalGeneral.Message, nil)
return returnLoc
}
err = emailPasswordReset(app, u.EmailClear(app.keys), token)
if err != nil {
log.Error("Error emailing password reset: %s", err)
addSessionFlash(app, w, r, ErrInternalGeneral.Message, nil)
return returnLoc
}
addSessionFlash(app, w, r, "We sent an email to the address associated with this account.", nil)
returnLoc.Message += "?sent=1"
return returnLoc
}
func emailPasswordReset(app *App, toEmail, token string) error {
// Send email
gun := mailgun.NewMailgun(app.cfg.Email.Domain, app.cfg.Email.MailgunPrivate)
footerPara := "Didn't request this password reset? Your account is still safe, and you can safely ignore this email."
plainMsg := fmt.Sprintf("We received a request to reset your password on %s. Please click the following link to continue (or copy and paste it into your browser): %s/reset?t=%s\n\n%s", app.cfg.App.SiteName, app.cfg.App.Host, token, footerPara)
m := mailgun.NewMessage(app.cfg.App.SiteName+" <noreply-password@"+app.cfg.Email.Domain+">", "Reset Your "+app.cfg.App.SiteName+" Password", plainMsg, fmt.Sprintf("<%s>", toEmail))
m.AddTag("Password Reset")
m.SetHtml(fmt.Sprintf(`<html>
<body style="font-family:Lora, 'Palatino Linotype', Palatino, Baskerville, 'Book Antiqua', 'New York', 'DejaVu serif', serif; font-size: 100%%; margin:1em 2em;">
<div style="margin:0 auto; max-width: 40em; font-size: 1.2em;">
<h1 style="font-size:1.75em"><a style="text-decoration:none;color:#000;" href="%s">%s</a></h1>
<p>We received a request to reset your password on %s. Please click the following link to continue:</p>
<p style="font-size:1.2em;margin-bottom:1.5em;"><a href="%s/reset?t=%s">Reset your password</a></p>
<p style="font-size: 0.86em;margin:1em auto">%s</p>
</div>
</body>
</html>`, app.cfg.App.Host, app.cfg.App.SiteName, app.cfg.App.SiteName, app.cfg.App.Host, token, footerPara))
_, _, err := gun.Send(m)
return err
}
func loginViaEmail(app *App, alias, redirectTo string) error {
if !app.cfg.Email.Enabled() {
return fmt.Errorf("EMAIL ISN'T CONFIGURED on this server")
}
// Make sure user has added an email
// TODO: create a new func to just get user's email; "ForAuth" doesn't match here
u, _ := app.db.GetUserForAuth(alias)
if u == nil {
if strings.IndexAny(alias, "@") > 0 {
return ErrUserNotFoundEmail
}
return ErrUserNotFound
}
if u.Email.String == "" {
return impart.HTTPError{http.StatusPreconditionFailed, "User doesn't have an email address. Log in with password, instead."}
}
// Generate one-time login token
t, err := app.db.GetTemporaryOneTimeAccessToken(u.ID, 60*15, true)
if err != nil {
log.Error("Unable to generate token for email login: %s", err)
return impart.HTTPError{http.StatusInternalServerError, "Unable to generate token."}
}
// Send email
gun := mailgun.NewMailgun(app.cfg.Email.Domain, app.cfg.Email.MailgunPrivate)
toEmail := u.EmailClear(app.keys)
footerPara := "This link will only work once and expires in 15 minutes. Didn't ask us to log in? You can safely ignore this email."
plainMsg := fmt.Sprintf("Log in to %s here: %s/login?to=%s&with=%s\n\n%s", app.cfg.App.SiteName, app.cfg.App.Host, redirectTo, t, footerPara)
m := mailgun.NewMessage(app.cfg.App.SiteName+" <noreply-login@"+app.cfg.Email.Domain+">", "Log in to "+app.cfg.App.SiteName, plainMsg, fmt.Sprintf("<%s>", toEmail))
m.AddTag("Email Login")
m.SetHtml(fmt.Sprintf(`<html>
<body style="font-family:Lora, 'Palatino Linotype', Palatino, Baskerville, 'Book Antiqua', 'New York', 'DejaVu serif', serif; font-size: 100%%; margin:1em 2em;">
<div style="margin:0 auto; max-width: 40em; font-size: 1.2em;">
<h1 style="font-size:1.75em"><a style="text-decoration:none;color:#000;" href="%s">%s</a></h1>
<p style="font-size:1.2em;margin-bottom:1.5em;text-align:center"><a href="%s/login?to=%s&with=%s">Log in to %s here</a>.</p>
<p style="font-size: 0.86em;color:#666;text-align:center;max-width:35em;margin:1em auto">%s</p>
</div>
</body>
</html>`, app.cfg.App.Host, app.cfg.App.SiteName, app.cfg.App.Host, redirectTo, t, app.cfg.App.SiteName, footerPara))
_, _, err = gun.Send(m)
return err
}
func saveTempInfo(app *App, key, val string, r *http.Request, w http.ResponseWriter) error {
session, err := app.sessionStore.Get(r, "t")
if err != nil {
return ErrInternalCookieSession
}
session.Values[key] = val
err = session.Save(r, w)
if err != nil {
log.Error("Couldn't saveTempInfo for key-val (%s:%s): %v", key, val, err)
}
return err
}
func getTempInfo(app *App, key string, r *http.Request, w http.ResponseWriter) string {
session, err := app.sessionStore.Get(r, "t")
if err != nil {
return ""
}
// Get the information
var s = ""
var ok bool
if s, ok = session.Values[key].(string); !ok {
return ""
}
// Delete cookie
session.Options.MaxAge = -1
err = session.Save(r, w)
if err != nil {
log.Error("Couldn't erase temp data for key %s: %v", key, err)
}
// Return value
return s
}
func handleUserDelete(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
if !app.cfg.App.OpenDeletion {
return impart.HTTPError{http.StatusForbidden, "Open account deletion is disabled on this instance."}
}
confirmUsername := r.PostFormValue("confirm-username")
if u.Username != confirmUsername {
return impart.HTTPError{http.StatusBadRequest, "Confirmation username must match your username exactly."}
}
// Check for account deletion safeguards in place
if u.IsAdmin() {
return impart.HTTPError{http.StatusForbidden, "Cannot delete admin."}
}
err := app.db.DeleteAccount(u.ID)
if err != nil {
log.Error("user delete account: %v", err)
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not delete account: %v", err)}
}
// FIXME: This doesn't ever appear to the user, as (I believe) the value is erased when the session cookie is reset
_ = addSessionFlash(app, w, r, "Thanks for writing with us! You account was deleted successfully.", nil)
return impart.HTTPError{http.StatusFound, "/me/logout"}
}
func removeOauth(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
provider := r.FormValue("provider")
clientID := r.FormValue("client_id")
remoteUserID := r.FormValue("remote_user_id")
err := app.db.RemoveOauth(r.Context(), u.ID, provider, clientID, remoteUserID)
if err != nil {
return impart.HTTPError{Status: http.StatusInternalServerError, Message: err.Error()}
}
return impart.HTTPError{Status: http.StatusFound, Message: "/me/settings"}
}
func prepareUserEmail(input string, emailKey []byte) zero.String {
email := zero.NewString("", input != "")
if len(input) > 0 {
encEmail, err := data.Encrypt(emailKey, input)
if err != nil {
log.Error("Unable to encrypt email: %s\n", err)
} else {
email.String = string(encEmail)
}
}
return email
}