Revision 2501aff8b7516115c409cb34cc50305cdde40a47 authored by Jeff King on 28 September 2013, 08:31:45 UTC, committed by Jonathan Nieder on 14 October 2013, 23:55:13 UTC
When we are handling a curl response code in http_request or
in the remote-curl RPC code, we use the handle_curl_result
helper to translate curl's response into an easy-to-use
code. When we see an HTTP 401, we do one of two things:

  1. If we already had a filled-in credential, we mark it as
     rejected, and then return HTTP_NOAUTH to indicate to
     the caller that we failed.

  2. If we didn't, then we ask for a new credential and tell
     the caller HTTP_REAUTH to indicate that they may want
     to try again.

Rejecting in the first case makes sense; it is the natural
result of the request we just made. However, prompting for
more credentials in the second step does not always make
sense. We do not know for sure that the caller is going to
make a second request, and nor are we sure that it will be
to the same URL. Logically, the prompt belongs not to the
request we just finished, but to the request we are (maybe)
about to make.

In practice, it is very hard to trigger any bad behavior.
Currently, if we make a second request, it will always be to
the same URL (even in the face of redirects, because curl
handles the redirects internally). And we almost always
retry on HTTP_REAUTH these days. The one exception is if we
are streaming a large RPC request to the server (e.g., a
pushed packfile), in which case we cannot restart. It's
extremely unlikely to see a 401 response at this stage,
though, as we would typically have seen it when we sent a
probe request, before streaming the data.

This patch drops the automatic prompt out of case 2, and
instead requires the caller to do it. This is a few extra
lines of code, and the bug it fixes is unlikely to come up
in practice. But it is conceptually cleaner, and paves the
way for better handling of credentials across redirects.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
1 parent 1bbcc22
Raw File
git-imap-send.txt
git-imap-send(1)
================

NAME
----
git-imap-send - Send a collection of patches from stdin to an IMAP folder


SYNOPSIS
--------
[verse]
'git imap-send'


DESCRIPTION
-----------
This command uploads a mailbox generated with 'git format-patch'
into an IMAP drafts folder.  This allows patches to be sent as
other email is when using mail clients that cannot read mailbox
files directly. The command also works with any general mailbox
in which emails have the fields "From", "Date", and "Subject" in
that order.

Typical usage is something like:

git format-patch --signoff --stdout --attach origin | git imap-send


CONFIGURATION
-------------

To use the tool, imap.folder and either imap.tunnel or imap.host must be set
to appropriate values.

Variables
~~~~~~~~~

imap.folder::
	The folder to drop the mails into, which is typically the Drafts
	folder. For example: "INBOX.Drafts", "INBOX/Drafts" or
	"[Gmail]/Drafts". Required to use imap-send.

imap.tunnel::
	Command used to setup a tunnel to the IMAP server through which
	commands will be piped instead of using a direct network connection
	to the server. Required when imap.host is not set to use imap-send.

imap.host::
	A URL identifying the server. Use a `imap://` prefix for non-secure
	connections and a `imaps://` prefix for secure connections.
	Ignored when imap.tunnel is set, but required to use imap-send
	otherwise.

imap.user::
	The username to use when logging in to the server.

imap.pass::
	The password to use when logging in to the server.

imap.port::
	An integer port number to connect to on the server.
	Defaults to 143 for imap:// hosts and 993 for imaps:// hosts.
	Ignored when imap.tunnel is set.

imap.sslverify::
	A boolean to enable/disable verification of the server certificate
	used by the SSL/TLS connection. Default is `true`. Ignored when
	imap.tunnel is set.

imap.preformattedHTML::
	A boolean to enable/disable the use of html encoding when sending
	a patch.  An html encoded patch will be bracketed with <pre>
	and have a content type of text/html.  Ironically, enabling this
	option causes Thunderbird to send the patch as a plain/text,
	format=fixed email.  Default is `false`.

imap.authMethod::
	Specify authenticate method for authentication with IMAP server.
	Current supported method is 'CRAM-MD5' only.

Examples
~~~~~~~~

Using tunnel mode:

..........................
[imap]
    folder = "INBOX.Drafts"
    tunnel = "ssh -q -C user@example.com /usr/bin/imapd ./Maildir 2> /dev/null"
..........................

Using direct mode:

.........................
[imap]
    folder = "INBOX.Drafts"
    host = imap://imap.example.com
    user = bob
    pass = p4ssw0rd
..........................

Using direct mode with SSL:

.........................
[imap]
    folder = "INBOX.Drafts"
    host = imaps://imap.example.com
    user = bob
    pass = p4ssw0rd
    port = 123
    sslverify = false
..........................


EXAMPLE
-------
To submit patches using GMail's IMAP interface, first, edit your ~/.gitconfig
to specify your account settings:

---------
[imap]
	folder = "[Gmail]/Drafts"
	host = imaps://imap.gmail.com
	user = user@gmail.com
	port = 993
	sslverify = false
---------

You might need to instead use: folder = "[Google Mail]/Drafts" if you get an error
that the "Folder doesn't exist".

Once the commits are ready to be sent, run the following command:

  $ git format-patch --cover-letter -M --stdout origin/master | git imap-send

Just make sure to disable line wrapping in the email client (GMail's web
interface will wrap lines no matter what, so you need to use a real
IMAP client).

CAUTION
-------
It is still your responsibility to make sure that the email message
sent by your email program meets the standards of your project.
Many projects do not like patches to be attached.  Some mail
agents will transform patches (e.g. wrap lines, send them as
format=flowed) in ways that make them fail.  You will get angry
flames ridiculing you if you don't check this.

Thunderbird in particular is known to be problematic.  Thunderbird
users may wish to visit this web page for more information:
  http://kb.mozillazine.org/Plain_text_e-mail_-_Thunderbird#Completely_plain_email

SEE ALSO
--------
linkgit:git-format-patch[1], linkgit:git-send-email[1], mbox(5)

GIT
---
Part of the linkgit:git[1] suite
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