delete.php

<?php
/*
Delete a given hook from all of your repos

* At this phase, it's just a quick and dirty script. If I
  still have the motivation, I'll blow it up into something
  better. And probably in Python.

Copyright (c) 2012, Bryce Chidester <bryce@cobryce.com>

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

/*
Syntax: $0 github_username github_password hook_name
*/
list($app, $github_username, $github_password, $hook_name) = $_SERVER['argv'];

if($_SERVER['argc'] < 2 || $_SERVER['argv'][1] == '-h' || $_SERVER['argv'][1] == '--help')
	die("Syntax: $app github_username github_password email_address [email_secret]".PHP_EOL);
if(!$github_username)
	die("You must specify your GitHub username.".PHP_EOL);
if(!$github_password)
	die("You must specify your GitHub password.".PHP_EOL);
if(!$hook_name)
	die("You must specify the hook name you wish to delete from your repos.".PHP_EOL);

$ch_repos = curl_init("https://api.github.com/user/repos");
apply_curl_setopt($ch_repos);
$response = curl_exec($ch_repos);
$json = json_decode($response);
if($json === false)
	die("Unable to fetch your GitHub repos: $response".PHP_EOL);
elseif(sizeof($json) === 0)
	die("You have no GitHub repos, at all. I cannot continue.".PHP_EOL);

/* Fetch the list of all repos to which we have Admin privileges. */
$repos = array();
foreach($json as $repo)
{
	if($repo->permissions->admin)
	{
		$repos[ $repo->full_name ] = $repo->url;
		echo "Adding {$repo->full_name} to the list of repos.".PHP_EOL;
	} else
		echo "Skipping {$repo->full_name} -- You do not have Admin privileges.".PHP_EOL;
}
if(sizeof($repos) === 0)
	die("You have no workable GitHub repos. You can only add hooks to repos to which you have administrative privileges.".PHP_EOL);

/* Now review those repos and find the ID for the given service hook to be removed */
$ch_repos = curl_multi_init();
$ch = array();
foreach($repos as $repo_name => $repo_url)
{
	$ch[ $repo_name ] = curl_init($repo_url."/hooks");
	apply_curl_setopt($ch[ $repo_name ]);
	curl_multi_add_handle($ch_repos, $ch[ $repo_name ]);
}
// Spool the requests
$active = null;
do
{
	$mrc = curl_multi_exec($ch_repos, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
// Everything has been "spooled", so now we handle things as they're ready
while ($active && $mrc == CURLM_OK)
{
	// select() and wait for one to return
	if(curl_multi_select($ch_repos) != -1)
	{
		do
		{
			$mrc = curl_multi_exec($ch_repos, $active);
		} while ($mrc == CURLM_CALL_MULTI_PERFORM);
	}
}
// All sockets complete, now we get to process the returned data
$hook_ids = array();
foreach($ch as $repo_name => $c)
{
	$response = curl_multi_getcontent($c);
	curl_multi_remove_handle($ch_repos, $c);
	$json = json_decode($response);
	if($json === false)
	{
		echo "ERROR! Error in GitHub's response for /hooks on $repo_name. Skipping.".PHP_EOL;
		echo $response.PHP_EOL;
		unset($repos[ $repo_name ]);
		continue;
	}
	foreach($json as $hook)
	{
		if($hook->name == $hook_name)
		{
			$hook_ids[ $repo_name ] = $hook->id;
			break;	// We can stop once we've found it
		}
	}
	if(!isset($hook_ids[ $repo_name ]))
	{
		echo "The hook $hook_name was not found on $repo_name. Ignoring.".PHP_EOL;
		unset($repos[ $repo_name ]);
	}
}
curl_multi_close($ch_repos);

echo "Removing the $hook_name hook from ".sizeof($repos)." repos.".PHP_EOL;

$ch_repos = curl_multi_init();
$ch = array();
foreach($repos as $repo_name => $repo_url)
{
	$ch[ $repo_name ] = curl_init($repo_url."/hooks/" . $hook_ids[ $repo_name ]);
	apply_curl_setopt($ch[ $repo_name ]);
	curl_setopt($ch[ $repo_name ], CURLOPT_RETURNTRANSFER, false);
	curl_setopt($ch[ $repo_name ], CURLOPT_CUSTOMREQUEST, "DELETE");
	curl_multi_add_handle($ch_repos, $ch[ $repo_name ]);
}
// Spool the requests
$active = null;
do
{
	$mrc = curl_multi_exec($ch_repos, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
// Everything has been "spooled", so now we handle things as they're ready
while ($active && $mrc == CURLM_OK)
{
	// select() and wait for one to return
	if(curl_multi_select($ch_repos) != -1)
	{
		do
		{
			$mrc = curl_multi_exec($ch_repos, $active);
		} while ($mrc == CURLM_CALL_MULTI_PERFORM);
	}
}
// All sockets complete, now we get to process the returned data
foreach($ch as $repo_name => $c)
{
	$response = curl_getinfo($c);
	curl_multi_remove_handle($ch_repos, $c);
	if($response['http_code'] !== 204)
	{
		echo "ERROR! Error in GitHub's response for DELETE /hooks/{$hook_ids[ $repo_name ]} on $repo_name. You should check this manually.".PHP_EOL;
		var_dump($response);
		continue;
	} else
		echo "The $hook_name hook has been deleted from $repo_name.".PHP_EOL;
}
curl_multi_close($ch_repos);


function apply_curl_setopt(&$ch)
{
	global $github_username, $github_password;
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_HEADER, false);
	curl_setopt($ch, CURLOPT_AUTOREFERER, true);
	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
	curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
	curl_setopt($ch, CURLOPT_USERPWD, "{$github_username}:{$github_password}");
	curl_setopt($ch, CURLOPT_USERAGENT, "GitHub-Multihook-Enable v1.0 (Email, https://github.com/brycied00d/GitHub-Multihook-Enable)");
}
?>