0001500: remote_connect_back fails to connect when HTTP_X_FORWARDED_FOR contains comma-delimited ip addresses

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Date Submitted

Last Update

0001500

Xdebug

Remote Debugging

public

2017-12-06 18:56

2017-12-07 12:13

Reporter

chadxz

Assigned To

derick

Priority

normal

Severity

minor

Reproducibility

always

Status

resolved

Resolution

duplicate

Platform

Linux

Ubuntu

OS Version

16.04

Product Version

2.5.5

Target Version

Fixed in Version

Summary

0001500: remote_connect_back fails to connect when HTTP_X_FORWARDED_FOR contains comma-delimited ip addresses

Description

remote_connect_back fails to connect when HTTP_X_FORWARDED_FOR contains comma-delimited ip addresses. This usually happens when the application is behind multiple proxies. In my case, the application is behind an HAProxy and an NGINX.

I would expect that it would pull the first ip address out of the list, as usually this is the one that represents the client's ip address (see https://en.wikipedia.org/wiki/X-Forwarded-For#Format [^])

Steps To Reproduce

1. Setup a php application with two levels of proxies, i.e. HAProxy -> NGINX -> apache php application
2. configure xdebug for remote debugging with connect back: remote_enable=1 remote_connect_back=1
3. visit php application with ?XDEBUG_SESSION_START=foo

see in the logs that it failed.

Additional Information

Relevant log output:

Log opened at 2017-12-06 18:43:51
I: Checking remote connect back address.
I: Checking header 'HTTP_X_FORWARDED_FOR'.
I: Remote address found, connecting to 10.24.3.223, 10.24.55.84:9000.
W: Creating socket for '10.24.3.223, 10.24.55.84:9000', getaddrinfo: Not a directory.
E: Could not connect to client. :-(
Log closed at 2017-12-06 18:43:51

Tags

No tags attached.

Operating System

PHP Version

7.1.5-7.1.9

Attached Files

Relationships

duplicate of

0000964

closed

derick

Xdebug does not parse X-Forwarded-For

Notes
(0004503) derick (administrator) 2017-12-07 10:51	This is a duplicate of https://bugs.xdebug.org/bug_view_page.php?bug_id=00000964, [^] which got fixed and release as part of 2.6.0alpha1: https://xdebug.org/updates.php#x_2_6_0alpha1 [^]

(0004504) chadxz (reporter) 2017-12-07 12:13	Thanks, searched but didn't see it!

Issue History
Date Modified	Username	Field	Change
2017-12-06 18:56	chadxz	New Issue
2017-12-07 10:51	derick	Note Added: 0004503
2017-12-07 10:51	derick	Relationship added	duplicate of 0000964
2017-12-07 10:51	derick	Status	new => resolved
2017-12-07 10:51	derick	Resolution	open => duplicate
2017-12-07 10:51	derick	Assigned To	=> derick
2017-12-07 12:13	chadxz	Note Added: 0004504