<?PHP
/** @file
* The main "controller" file of ViewGit.
*
* Joomlafied version.
*
* All requests come to this file. You can think of it as the controller in the
* Model-View-Controller pattern. It reads config, processes user input,
* fetches required data using git commandline, and finally passes the data to
* templates to be shown to the user.
*
*/
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );
jimport('joomla.plugin.plugin');
class plgContentviewgit extends JPlugin
{
public function onContentPrepare($ctx,&$rw, &$parms, $pg=0 ) {
if ( !preg_match("#{viewgit}(.*?){/viewgit}#s", $rw->text) ) {
return(true);
}
$option=JRequest::getString('option');
if ($option!='') $option="option=$option"; else $option='';
$view=JRequest::getString('view');
if ($view!='') $view="&"."view=$view"; else $view='';
$layout=JRequest::getString('layout');
if ($layout!='') $layout="&"."layout=$layout"; else $layout='';
$id=JRequest::getString('id');
if ($id!='') $id="&"."id=$id"; else $id='';
$Itemid=JRequest::getString('Itemid');
if ($Itemid!='') $Itemid="&"."Itemid=$Itemid"; else $Itemid='';
global $urlbase;
$urlbase=JURI::base()."?{$option}{$view}{$layout}{$id}{$Itemid}";
//print $urlbase;
$xpr="#{viewgit}(.*?){/viewgit}#s";
if (preg_match_all($xpr, $rw->text, $matches, PREG_PATTERN_ORDER) > 0) {
$cnt=0;
foreach ($matches[0] as $match) {
$html="";
$setproject = preg_replace("/{.+?}/", "", $match);
if (($setproject!='') and (JRequest::getString('a')=='')) {
JRequest::setVar('p',$setproject);
JRequest::setVar('a','summary');
}
//Start Main Viewgit Code
global $conf;
global $page;
require_once('viewgit/inc/config.php');
require_once('viewgit/inc/functions.php');
require_once('viewgit/inc/plugins.php');
$doc =& JFactory::getDocument();
$doc->addStyleSheet('/plugins/content/viewgit/viewgit/'.$conf['style'].'.css');
// Include all plugins
foreach (glob('plugins/*/main.php') as $plugin) {
require_once($plugin);
$parts = explode('/', $plugin);
$name = $parts[1];
$classname = "${name}plugin";
$inst = new $classname;
}
$old_error_handler = set_error_handler('vg_error_handler');
// Adjust error_reporting based on config.
if (!$conf['debug']) {
error_reporting(E_ALL ^ E_NOTICE);
}
if (isset($conf['auth_lib'])){
require_once("viewgit/inc/auth_{$conf['auth_lib']}.php");
auth_check();
}
if (isset($conf['projects_glob'])) {
foreach ($conf['projects_glob'] as $glob) {
foreach (glob($glob) as $path) {
// Get the last part of the path before .git
$name = preg_replace(array('#/?\.git$#', '#^.*/#'), array('', ''), $path);
// Workaround against name collisions; proj, proj1, proj2, ...
$i = '';
while (in_array($name . $i, array_keys($conf['projects']))) {
@$i++;
}
$name = $name . $i;
$conf['projects'][$name] = array('repo' => $path);
}
}
}
$action = 'index';
$template = 'index';
$page['title'] = 'ViewGit';
if (JRequest::getString('a')) {
$action = strtolower(JRequest::getString( 'a'));
}
$page['action'] = $action;
/*
* index - list of projects
*/
if ($action === 'index') {
$template = 'index';
$page['title'] = 'List of projects - ViewGit';
foreach (array_keys($conf['projects']) as $p) {
$page['projects'][] = get_project_info($p);
}
}
/*
* archive - send a tree as an archive to client
* @param p project
* @param h tree hash
* @param t type, "targz" or "zip"
* @param n OPTIONAL name suggestion
*/
elseif ($action === 'archive') {
$project = validate_project(JRequest::getString( 'p'));
$tree = validate_hash(JRequest::getString( 'h'));
$type = JRequest::getString( 't');
$basename = "$project-tree-". substr($tree, 0, 7);
if ((JRequest::getString( 'n'))) {
$basename = "$project-$_REQUEST[n]-". substr($tree, 0, 6);
}
if ($type === 'targz') {
header("Content-Type: application/x-tar-gz");
header("Content-Transfer-Encoding: binary");
header("Content-Disposition: attachment; filename=\"$basename.tar.gz\";");
run_git_passthru($project, "archive --format=tar $tree |gzip");
}
elseif ($type === 'zip') {
header("Content-Type: application/x-zip");
header("Content-Transfer-Encoding: binary");
header("Content-Disposition: attachment; filename=\"$basename.zip\";");
run_git_passthru($project, "archive --format=zip $tree");
}
else {
die('Invalid archive type requested');
}
die();
}
/*
* blob - send a blob to browser with filename suggestion
* @param p project
* @param h blob hash
* @param n filename
*/
elseif ($action === 'blob') {
$project = validate_project(JRequest::getString( 'p' ));
$hash = validate_hash(JRequest::getString( 'h'));
$name = JRequest::getString( 'n');
header('Content-type: application/octet-stream');
header("Content-Disposition: attachment; filename=$name"); // FIXME needs quotation
run_git_passthru($project, "cat-file blob $hash");
die();
}
/*
* co - git checkout. These requests come from mod_rewrite, see the .htaccess file.
* @param p project
* @param r path
*/
elseif ($action === 'co') {
if (!$conf['allow_checkout']) { die('Checkout not allowed'); }
// For debugging
debug("Project: $_REQUEST[p] Request: $_REQUEST[r]");
// eg. info/refs, HEAD
$p = validate_project(JRequest::getString( 'p')); // project
$r = JRequest::getString( 'r'); // path
$gitdir = $conf['projects'][$p]['repo'];
$filename = $gitdir .'/'. $r;
// make sure the request is legit (no reading of other files besides those under git projects)
if ($r === 'HEAD' || $r === 'info/refs' || preg_match('!^objects/info/(packs|http-alternates|alternates)$!', $r) > 0 || preg_match('!^objects/[0-9a-f]{2}/[0-9a-f]{38}$!', $r) > 0) {
if (file_exists($filename)) {
debug('OK, sending');
readfile($filename);
} else {
debug('Not found');
header('HTTP/1.0 404 Not Found');
}
} else {
debug("Denied");
}
die();
}
/*
* commit - view commit information
* @param p project
* @param h commit hash
*/
elseif ($action === 'commit') {
$template = 'commit';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['title'] = "$page[project] - Commit - ViewGit";
$page['commit_id'] = validate_hash(JRequest::getString( 'h'));
$page['subtitle'] = "Commit ". substr($page['commit_id'], 0, 6);
$info = git_get_commit_info($page['project'], $page['commit_id']);
$page['author_name'] = $info['author_name'];
$page['author_mail'] = $info['author_mail'];
$page['author_datetime'] = gmstrftime($conf['datetime_full'], $info['author_utcstamp']);
$page['author_datetime_local'] = gmstrftime($conf['datetime_full'], $info['author_stamp']) .' '. $info['author_timezone'];
$page['committer_name'] = $info['committer_name'];
$page['committer_mail'] = $info['committer_mail'];
$page['committer_datetime'] = gmstrftime($conf['datetime_full'], $info['committer_utcstamp']);
$page['committer_datetime_local'] = gmstrftime($conf['datetime_full'], $info['committer_stamp']) .' '. $info['committer_timezone'];
$page['tree_id'] = $info['tree'];
$page['parents'] = $info['parents'];
$page['message'] = $info['message'];
$page['message_firstline'] = $info['message_firstline'];
$page['message_full'] = $info['message_full'];
}
/*
* commitdiff - view diff of a commit
* @param p project
* @param h commit hash
*/
elseif ($action === 'commitdiff') {
$template = 'commitdiff';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['title'] = "$page[project] - Commitdiff - ViewGit";
$hash = validate_hash(JRequest::getString( 'h'));
$page['commit_id'] = $hash;
$page['subtitle'] = "Commitdiff ". substr($page['commit_id'], 0, 6);
$info = git_get_commit_info($page['project'], $hash);
$page['tree_id'] = $info['tree'];
$page['message'] = $info['message'];
$page['message_firstline'] = $info['message_firstline'];
$page['message_full'] = $info['message_full'];
$page['author_name'] = $info['author_name'];
$page['author_mail'] = $info['author_mail'];
$page['author_datetime'] = gmstrftime($conf['datetime'], $info['author_utcstamp']);
$text = git_diff($page['project'], "$hash^", $hash);
list($page['files'], $page['diffdata']) = format_diff($text);
//$page['diffdata'] = format_diff($text);
}
elseif ($action === 'patch') {
$project = validate_project(JRequest::getString( 'p'));
$hash = validate_hash(JRequest::getString( 'h'));
$filename = "$project-". substr($hash, 0, 7) .".patch";
//header("Content-Type: text/x-diff");
header("Content-Type: application/octet-stream");
header("Content-Transfer-Encoding: binary");
// TODO git-style filename
header("Content-Disposition: attachment; filename=\"$filename\";");
run_git_passthru($project, "format-patch --stdout $hash^..$hash");
die();
}
/*
* rss-log - RSS feed of project changes
* @param p project
*/
elseif ($action === 'rss-log') {
$page['project'] = validate_project(JRequest::getString( 'p'));
$ext_url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']) .'/';
$page['rss_title'] = "Log for $page[project]";
$page['rss_link'] = $ext_url . makelink(array('a' => 'summary', 'p' => $page['project']));
$page['rss_description'] = "Git log for project $page[project], generated by ViewGit.";
$page['rss_pubDate'] = rss_pubdate(time());
$page['rss_ttl'] = $conf['rss_ttl'];
$page['rss_items'] = array();
$diffstat = strstr($conf['rss_item_description'], '{DIFFSTAT}');
$revs = git_get_rev_list($page['project'], $conf['rss_max_items']);
foreach ($revs as $rev) {
$info = git_get_commit_info($page['project'], $rev);
$link = $ext_url . makelink(array('a' => 'commit', 'p' => $page['project'], 'h' => $rev));
if ($diffstat) {
$info['diffstat'] = git_diffstat($page['project'], $rev);
}
$page['rss_items'][] = array(
'title' => rss_item_format($conf['rss_item_title'], $info),
'guid' => $link,
'link' => $link,
'description' => rss_item_format($conf['rss_item_description'], $info),
'pubdate' => rss_pubdate($info['author_utcstamp']),
);
}
require('viewgit/templates/rss.php');
die();
}
/*
* search - search project history
* @param p project
* @param st search type: commit,grep,author,committer,pickaxe
* @param s string to search for
*/
elseif ($action === 'search') {
$template = 'shortlog';
$page['project'] = validate_project(JRequest::getString( 'p'));
$info = git_get_commit_info($page['project']);
$page['commit_id'] = $info['h'];
$page['tree_id'] = $info['tree'];
$type = JRequest::getString( 'st');
$string = JRequest::getString( 's');
$page['search_t'] = $type;
$page['search_s'] = $string;
$commits = git_search_commits($page['project'], $type, $string);
$shortlog = array();
foreach ($commits as $c) {
$info = git_get_commit_info($page['project'], $c);
$shortlog[] = array(
'author' => $info['author_name'],
'date' => gmstrftime($conf['datetime'], $info['author_utcstamp']),
'message' => $info['message'],
'commit_id' => $info['h'],
'tree' => $info['tree'],
'refs' => array(),
);
}
$page['shortlog'] = $shortlog;
}
/*
* shortlog - project shortlog entries
* @param p project
* @param h OPTIONAL commit id to start showing log from
*/
elseif ($action === 'shortlog') {
$template = 'shortlog';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['title'] = "$page[project] - Shortlog - ViewGit";
$page['subtitle'] = "Shortlog";
if ((JRequest::getString( 'h'))) {
$page['ref'] = validate_hash(JRequest::getString( 'h'));
} else {
$page['ref'] = 'HEAD';
}
$info = git_get_commit_info($page['project'], $page['ref']);
$page['commit_id'] = $info['h'];
$page['tree_id'] = $info['tree'];
$page['shortlog'] = handle_shortlog($page['project'], $page['ref']);
}
elseif ($action === 'summary') {
$template = 'summary';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['title'] = "$page[project] - Summary - ViewGit";
$page['subtitle'] = "Summary";
$info = git_get_commit_info($page['project']);
$page['commit_id'] = $info['h'];
$page['tree_id'] = $info['tree'];
$page['shortlog'] = handle_shortlog($page['project']);
$page['tags'] = handle_tags($page['project'], $conf['summary_tags']);
$heads = git_get_heads($page['project']);
$page['heads'] = array();
foreach ($heads as $h) {
$info = git_get_commit_info($page['project'], $h['h']);
$page['heads'][] = array(
'date' => gmstrftime($conf['datetime'], $info['author_utcstamp']),
'h' => $h['h'],
'fullname' => $h['fullname'],
'name' => $h['name'],
);
}
}
elseif ($action === 'tags') {
$template = 'tags';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['title'] = "$page[project] - Tags - ViewGit";
$info = git_get_commit_info($page['project']);
$page['commit_id'] = $info['h'];
$page['tree_id'] = $info['tree'];
$page['tags'] = handle_tags($page['project']);
}
/*
* Shows a tree, with list of directories/files, links to them and download
* links to archives.
*
* @param p project
* @param h tree hash
* @param hb OPTIONAL base commit (trees can be part of multiple commits, this
* one denotes which commit the user navigated from)
* @param f OPTIONAL path the user has followed to view this tree
*/
elseif ($action === 'tree') {
$template = 'tree';
$page['project'] = validate_project(JRequest::getString( 'p'));
if ((JRequest::getString( 'h'))) {
$page['tree_id'] = validate_hash(JRequest::getString( 'h'));
}
/*
else {
// TODO walk the tree
$page['tree_id'] = 'HEAD';
}
*/
$page['title'] = "$page[project] - Tree - ViewGit";
// 'hb' optionally contains the commit_id this tree is related to
if ((JRequest::getString( 'hb'))) {
$page['commit_id'] = validate_hash(JRequest::getString( 'hb'));
}
else {
// for the header
$info = git_get_commit_info($page['project']);
$page['commit_id'] = $info['h'];
}
$page['path'] = '';
if ((JRequest::getString( 'f'))) {
$page['path'] = JRequest::getString( 'f'); // TODO validate?
}
// get path info for the header
$page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
if (!isset($page['tree_id'])) {
// Take the last hash from the tree
if (count($page['pathinfo']) > 0) {
$page['tree_id'] = $page['pathinfo'][count($page['pathinfo']) - 1]['hash'];
} else {
$page['tree_id'] = 'HEAD';
}
}
$page['subtitle'] = "Tree ". substr($page['tree_id'], 0, 6);
$page['entries'] = git_ls_tree($page['project'], $page['tree_id']);
}
/*
* View a blob as inline, embedded on the page.
* @param p project
* @param h blob hash
* @param hb OPTIONAL base commit
*/
elseif ($action === 'viewblob') {
$template = 'blob';
$page['project'] = validate_project(JRequest::getString( 'p'));
$page['hash'] = validate_hash(JRequest::getString( 'h'));
$page['title'] = "$page[project] - Blob - ViewGit";
if ((JRequest::getString( 'hb'))) {
$page['commit_id'] = validate_hash(JRequest::getString( 'hb'));
}
else {
$page['commit_id'] = 'HEAD';
}
$page['subtitle'] = "Blob ". substr($page['hash'], 0, 6);
$page['path'] = '';
if ((JRequest::getString( 'f'))) {
$page['path'] = JRequest::getString( 'f'); // TODO validate?
}
// For the header's pagenav
$info = git_get_commit_info($page['project'], $page['commit_id']);
$page['commit_id'] = $info['h'];
$page['tree_id'] = $info['tree'];
$page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
$page['data'] = join("\n", run_git($page['project'], "cat-file blob $page[hash]"));
// GeSHi support
if ($conf['geshi'] && strpos($page['path'], '.')) {
$old_mask = error_reporting(E_ALL ^ E_NOTICE);
require_once($conf['geshi_path']);
$ext = array_pop(explode('.', $page['path']));
$lang = Geshi::get_language_name_from_extension($ext);
if (strlen($lang) > 0) {
$geshi =& new Geshi($page['data'], $lang);
if (is_int($conf['geshi_line_numbers'])) {
if ($conf['geshi_line_numbers'] == 0) {
$geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
}
else {
$geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, $conf['geshi_line_numbers']);
}
}
$page['html_data'] = $geshi->parse_code();
}
error_reporting($old_mask);
}
}
elseif (in_array($action, array_keys(VGPlugin::$plugin_actions))) {
VGPlugin::$plugin_actions[$action]->action($action);
die();
}
else {
die('Invalid action');
}
//End Viewgit Code
ob_start();
require 'viewgit/templates/header.php';
require "viewgit/templates/".$template.".php";
require 'viewgit/templates/footer.php';
if (isset($page['project'])) {
$attribs = array('type' => 'application/rss+xml', 'title' => 'RSS 2.0');
$href="/plugins/content/viewgit/viewgit/index.php?a=rss-log&p=".$page['project'];
$doc->addHeadLink( $href, 'alternate', 'rel', $attribs );
}
//VGPlugin::call_hooks('header');
$html = ob_get_contents();
ob_end_clean();
$rw->text=preg_replace($xpr,$html,$rw->text,1);
}
return true;
}
}
}
?>
