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Merge pull request #776 from writefreely/passwordless-login
Plumbing: login via emailed link Ref T731
This commit is contained in:
commit
7db4b699e2
2 changed files with 57 additions and 1 deletions
49
account.go
49
account.go
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@ -13,6 +13,7 @@ package writefreely
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import (
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"encoding/json"
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"fmt"
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"github.com/mailgun/mailgun-go"
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"html/template"
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"net/http"
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"regexp"
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@ -1237,6 +1238,54 @@ func viewSettings(app *App, u *User, w http.ResponseWriter, r *http.Request) err
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return nil
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}
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func loginViaEmail(app *App, alias, redirectTo string) error {
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if !app.cfg.Email.Enabled() {
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return fmt.Errorf("EMAIL ISN'T CONFIGURED on this server")
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}
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// Make sure user has added an email
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// TODO: create a new func to just get user's email; "ForAuth" doesn't match here
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u, _ := app.db.GetUserForAuth(alias)
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if u == nil {
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if strings.IndexAny(alias, "@") > 0 {
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return ErrUserNotFoundEmail
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}
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return ErrUserNotFound
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}
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if u.Email.String == "" {
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return impart.HTTPError{http.StatusPreconditionFailed, "User doesn't have an email address. Log in with password, instead."}
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}
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// Generate one-time login token
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t, err := app.db.GetTemporaryOneTimeAccessToken(u.ID, 60*15, true)
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if err != nil {
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log.Error("Unable to generate token for email login: %s", err)
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return impart.HTTPError{http.StatusInternalServerError, "Unable to generate token."}
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}
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// Send email
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gun := mailgun.NewMailgun(app.cfg.Email.Domain, app.cfg.Email.MailgunPrivate)
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toEmail := u.EmailClear(app.keys)
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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."
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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)
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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))
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m.AddTag("Email Login")
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m.SetHtml(fmt.Sprintf(`<html>
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<body style="font-family:Lora, 'Palatino Linotype', Palatino, Baskerville, 'Book Antiqua', 'New York', 'DejaVu serif', serif; font-size: 100%%; margin:1em 2em;">
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<div style="margin:0 auto; max-width: 40em; font-size: 1.2em;">
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<h1 style="font-size:1.75em"><a style="text-decoration:none;color:#000;" href="%s">%s</a></h1>
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<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>
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<p style="font-size: 0.86em;color:#666;text-align:center;max-width:35em;margin:1em auto">%s</p>
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</div>
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</body>
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</html>`, app.cfg.App.Host, app.cfg.App.SiteName, app.cfg.App.Host, redirectTo, t, app.cfg.App.SiteName, footerPara))
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_, _, err = gun.Send(m)
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return err
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}
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func saveTempInfo(app *App, key, val string, r *http.Request, w http.ResponseWriter) error {
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session, err := app.sessionStore.Get(r, "t")
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if err != nil {
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@ -174,6 +174,13 @@ func (db *datastore) upsert(indexedCols ...string) string {
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return "ON DUPLICATE KEY UPDATE"
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}
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func (db *datastore) dateAdd(l int, unit string) string {
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if db.driverName == driverSQLite {
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return fmt.Sprintf("DATETIME('now', '%d %s')", l, unit)
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}
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return fmt.Sprintf("DATE_ADD(NOW(), INTERVAL %d %s)", l, unit)
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}
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func (db *datastore) dateSub(l int, unit string) string {
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if db.driverName == driverSQLite {
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return fmt.Sprintf("DATETIME('now', '-%d %s')", l, unit)
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@ -567,7 +574,7 @@ func (db *datastore) GetTemporaryOneTimeAccessToken(userID int64, validSecs int,
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expirationVal := "NULL"
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if validSecs > 0 {
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expirationVal = fmt.Sprintf("DATE_ADD("+db.now()+", INTERVAL %d SECOND)", validSecs)
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expirationVal = db.dateAdd(validSecs, "SECOND")
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}
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_, err = db.Exec("INSERT INTO accesstokens (token, user_id, one_time, expires) VALUES (?, ?, ?, "+expirationVal+")", string(binTok), userID, oneTime)
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