Accented letters are not accepted in mailer.FROM

[edgar-bonet]

• Gitea version (or commit ref): 1.1.2
• Git version: 2.7.4
• Operating system: Ubuntu 16.04.2 LTS
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Description

I tried to activate gitea's mailer by putting the following in custom/conf/app.ini:

[mailer]
ENABLED      = true
FROM         = Néel Institut git hosting service <git@***>
USE_SENDMAIL = true

When I clicked on the "Send Test Email" button, I got the error message: Impossible d'envoyer un e-mail de test à 'bonet@grenoble.cnrs.fr': gomail: could not send email 1: gomail: invalid address "=?UTF-8?q?N=C3=A9el_Institut_git_hosting_service_?=": mail: unclosed angle-addr.

I then replaced "Néel" by "Neel" and everything worked fine, thus I assume this is a problem with gitea (or gomail) mishandling the accented letter "é" (= U+00E9, Latin small letter e with acute).

It should be noted that "=?UTF-8?q?N=C3=A9el_Institut_git_hosting_service_?=" is the proper way to encode "Néel Institut git hosting service " in an e-mail header, as per RFC 2047. Thus, it looks like gomail genuinely attempts to support non-ASCII characters in the e-mail From field.

[scr34m]

This is a gomail problem, but there is a workaround, but this problem occurs too when user name contains any non ASCII character.

type mimeEncoder struct {
	mime.WordEncoder
}

bEncoding := mimeEncoder{mime.BEncoding}
name := bEncoding.Encode("utf-8", "József Galamb")

msg := NewMessageFrom([]string{name + " <jon@example.org>"}, "jon@example.org", "subject", "body")

If this solution is okay then i could create a PR:

• models/mail.composeIssueCommentMessage for comments notification
• setting.MailService.From any where is used
  or simply make a check inside (more general solution) modules/mailer.NewMessageFrom() to field "to" and "from" an parse supplied values with https://golang.org/pkg/net/mail/#ParseAddress

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs during the next 2 weeks. Thank you for your contributions.

[stale]

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[zeripath]

This was fixed by #2559