index.php

   1 <?php
   2 /** @file
   3  * The main "controller" file of ViewGit.
   4  *
   5  * All requests come to this file. You can think of it as the controller in the
   6  * Model-View-Controller pattern. It reads config, processes user input,
   7  * fetches required data using git commandline, and finally passes the data to
   8  * templates to be shown to the user.
   9  */
  10 error_reporting(E_ALL | E_STRICT);
  11
  12 require_once('inc/config.php');
  13 require_once('inc/functions.php');
  14 require_once('inc/plugins.php');
  15
  16 // Include all plugins
  17 foreach (glob('plugins/*/main.php') as $plugin) {
  18         require_once($plugin);
  19
  20         $parts = explode('/', $plugin);
  21         $name = $parts[1];
  22
  23         $classname = "${name}plugin";
  24         $inst = new $classname;
  25 }
  26
  27 $old_error_handler = set_error_handler('vg_error_handler');
  28
  29 // Adjust error_reporting based on config.
  30 if (!$conf['debug']) {
  31         error_reporting(E_ALL ^ E_NOTICE);
  32 }
  33
  34 if (isset($conf['auth_lib'])){
  35         require_once("inc/auth_{$conf['auth_lib']}.php");
  36         auth_check();
  37 }
  38
  39 if (isset($conf['projects_glob'])) {
  40         foreach ($conf['projects_glob'] as $glob) {
  41                 foreach (glob($glob) as $path) {
  42                         // Get the last part of the path before .git
  43                         $name = preg_replace(array('#/?\.git$#', '#^.*/#'), array('', ''), $path);
  44
  45                         // Workaround against name collisions; proj, proj1, proj2, ...
  46                         $i = '';
  47                         while (in_array($name . $i, array_keys($conf['projects']))) {
  48                                 @$i++;
  49                         }
  50                         $name = $name . $i;
  51                         $conf['projects'][$name] = array('repo' => $path);
  52                 }
  53         }
  54 }
  55
  56 $action = 'index';
  57 $template = 'index';
  58 $page['title'] = 'ViewGit';
  59
  60 if (isset($_REQUEST['a'])) {
  61         $action = strtolower($_REQUEST['a']);
  62 }
  63 $page['action'] = $action;
  64
  65 /*
  66  * index - list of projects
  67  */
  68 if ($action === 'index') {
  69         $template = 'index';
  70         $page['title'] = 'List of projects - ViewGit';
  71
  72         foreach (array_keys($conf['projects']) as $p) {
  73                 $page['projects'][] = get_project_info($p);
  74         }
  75 }
  76
  77 /*
  78  * archive - send a tree as an archive to client
  79  * @param p project
  80  * @param h tree hash
  81  * @param t type, "targz" or "zip"
  82  * @param n OPTIONAL name suggestion
  83  */
  84 elseif ($action === 'archive') {
  85         $project = validate_project($_REQUEST['p']);
  86         $tree = validate_hash($_REQUEST['h']);
  87         $type = $_REQUEST['t'];
  88
  89         $basename = "$project-tree-". substr($tree, 0, 7);
  90         if (isset($_REQUEST['n'])) {
  91                 $basename = "$project-$_REQUEST[n]-". substr($tree, 0, 6);
  92         }
  93
  94         if ($type === 'targz') {
  95                 header("Content-Type: application/x-tar-gz");
  96                 header("Content-Transfer-Encoding: binary");
  97                 header("Content-Disposition: attachment; filename=\"$basename.tar.gz\";");
  98                 run_git_passthru($project, "archive --format=tar $tree |gzip");
  99         }
 100         elseif ($type === 'zip') {
 101                 header("Content-Type: application/x-zip");
 102                 header("Content-Transfer-Encoding: binary");
 103                 header("Content-Disposition: attachment; filename=\"$basename.zip\";");
 104                 run_git_passthru($project, "archive --format=zip $tree");
 105         }
 106         else {
 107                 die('Invalid archive type requested');
 108         }
 109
 110         die();
 111 }
 112
 113 /*
 114  * blob - send a blob to browser with filename suggestion
 115  * @param p project
 116  * @param h blob hash
 117  * @param n filename
 118  */
 119 elseif ($action === 'blob') {
 120         $project = validate_project($_REQUEST['p']);
 121         $hash = validate_hash($_REQUEST['h']);
 122         $name = $_REQUEST['n'];
 123
 124         header('Content-type: application/octet-stream');
 125         header("Content-Disposition: attachment; filename=$name"); // FIXME needs quotation
 126
 127         run_git_passthru($project, "cat-file blob $hash");
 128         die();
 129 }
 130
 131 /*
 132  * co - git checkout. These requests come from mod_rewrite, see the .htaccess file.
 133  * @param p project
 134  * @param r path
 135  */
 136 elseif ($action === 'co') {
 137         if (!$conf['allow_checkout']) { die('Checkout not allowed'); }
 138
 139         // For debugging
 140         debug("Project: $_REQUEST[p] Request: $_REQUEST[r]");
 141
 142         // eg. info/refs, HEAD
 143         $p = validate_project($_REQUEST['p']); // project
 144         $r = $_REQUEST['r']; // path
 145
 146         $gitdir = $conf['projects'][$p]['repo'];
 147         $filename = $gitdir .'/'. $r;
 148
 149         // make sure the request is legit (no reading of other files besides those under git projects)
 150         if ($r === 'HEAD' || $r === 'info/refs' || preg_match('!^objects/info/(packs|http-alternates|alternates)$!', $r) > 0 || preg_match('!^objects/[0-9a-f]{2}/[0-9a-f]{38}$!', $r) > 0) {
 151                 if (file_exists($filename)) {
 152                         debug('OK, sending');
 153                         readfile($filename);
 154                 } else {
 155                         debug('Not found');
 156                         header('HTTP/1.0 404 Not Found');
 157                 }
 158         } else {
 159                 debug("Denied");
 160         }
 161
 162         die();
 163 }
 164
 165 /*
 166  * commit - view commit information
 167  * @param p project
 168  * @param h commit hash
 169  */
 170 elseif ($action === 'commit') {
 171         $template = 'commit';
 172         $page['project'] = validate_project($_REQUEST['p']);
 173         $page['title'] = "$page[project] - Commit - ViewGit";
 174         $page['commit_id'] = validate_hash($_REQUEST['h']);
 175         $page['subtitle'] = "Commit ". substr($page['commit_id'], 0, 6);
 176
 177         $info = git_get_commit_info($page['project'], $page['commit_id']);
 178
 179         $page['author_name'] = $info['author_name'];
 180         $page['author_mail'] = $info['author_mail'];
 181         $page['author_datetime'] = gmstrftime($conf['datetime_full'], $info['author_utcstamp']);
 182         $page['author_datetime_local'] = gmstrftime($conf['datetime_full'], $info['author_stamp']) .' '. $info['author_timezone'];
 183         $page['committer_name'] = $info['committer_name'];
 184         $page['committer_mail'] = $info['committer_mail'];
 185         $page['committer_datetime'] = gmstrftime($conf['datetime_full'], $info['committer_utcstamp']);
 186         $page['committer_datetime_local'] = gmstrftime($conf['datetime_full'], $info['committer_stamp']) .' '. $info['committer_timezone'];
 187         $page['tree_id'] = $info['tree'];
 188         $page['parents'] = $info['parents'];
 189         $page['message'] = $info['message'];
 190         $page['message_firstline'] = $info['message_firstline'];
 191         $page['message_full'] = $info['message_full'];
 192
 193 }
 194
 195 /*
 196  * commitdiff - view diff of a commit
 197  * @param p project
 198  * @param h commit hash
 199  */
 200 elseif ($action === 'commitdiff') {
 201         $template = 'commitdiff';
 202         $page['project'] = validate_project($_REQUEST['p']);
 203         $page['title'] = "$page[project] - Commitdiff - ViewGit";
 204         $hash = validate_hash($_REQUEST['h']);
 205         $page['commit_id'] = $hash;
 206         $page['subtitle'] = "Commitdiff ". substr($page['commit_id'], 0, 6);
 207
 208         $info = git_get_commit_info($page['project'], $hash);
 209
 210         $page['tree_id'] = $info['tree'];
 211
 212         $page['message'] = $info['message'];
 213         $page['message_firstline'] = $info['message_firstline'];
 214         $page['message_full'] = $info['message_full'];
 215         $page['author_name'] = $info['author_name'];
 216         $page['author_mail'] = $info['author_mail'];
 217         $page['author_datetime'] = gmstrftime($conf['datetime'], $info['author_utcstamp']);
 218
 219         $text = git_diff($page['project'], "$hash^", $hash);
 220         list($page['files'], $page['diffdata']) = format_diff($text);
 221         //$page['diffdata'] = format_diff($text);
 222 }
 223
 224 elseif ($action === 'patch') {
 225         $project = validate_project($_REQUEST['p']);
 226         $hash = validate_hash($_REQUEST['h']);
 227         $filename = "$project-". substr($hash, 0, 7) .".patch";
 228
 229         //header("Content-Type: text/x-diff");
 230         header("Content-Type: application/octet-stream");
 231         header("Content-Transfer-Encoding: binary");
 232         // TODO git-style filename
 233         header("Content-Disposition: attachment; filename=\"$filename\";");
 234
 235         run_git_passthru($project, "format-patch --stdout $hash^..$hash");
 236         die();
 237 }
 238
 239 /*
 240  * rss-log - RSS feed of project changes
 241  * @param p project
 242  */
 243 elseif ($action === 'rss-log') {
 244         $page['project'] = validate_project($_REQUEST['p']);
 245
 246         $ext_url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']) .'/';
 247
 248         $page['rss_title'] = "Log for $page[project]";
 249         $page['rss_link'] = $ext_url . makelink(array('a' => 'summary', 'p' => $page['project']));
 250         $page['rss_description'] = "Git log for project $page[project], generated by ViewGit.";
 251         $page['rss_pubDate'] = rss_pubdate(time());
 252         $page['rss_ttl'] = $conf['rss_ttl'];
 253
 254         $page['rss_items'] = array();
 255
 256         $diffstat = strstr($conf['rss_item_description'], '{DIFFSTAT}');
 257
 258         $revs = git_get_rev_list($page['project'], $conf['rss_max_items']);
 259         foreach ($revs as $rev) {
 260                 $info = git_get_commit_info($page['project'], $rev);
 261                 $link = $ext_url . makelink(array('a' => 'commit', 'p' => $page['project'], 'h' => $rev));
 262                 if ($diffstat) {
 263                         $info['diffstat'] = git_diffstat($page['project'], $rev);
 264                 }
 265
 266                 $page['rss_items'][] = array(
 267                         'title' => rss_item_format($conf['rss_item_title'], $info),
 268                         'guid' => $link,
 269                         'link' => $link,
 270                         'description' => rss_item_format($conf['rss_item_description'], $info),
 271                         'pubdate' => rss_pubdate($info['author_stamp']),
 272                 );
 273         }
 274
 275         require('templates/rss.php');
 276         die();
 277 }
 278
 279 /*
 280  * search - search project history
 281  * @param p project
 282  * @param st search type: commit,grep,author,committer,pickaxe
 283  * @param s string to search for
 284  */
 285 elseif ($action === 'search') {
 286         $template = 'shortlog';
 287
 288         $page['project'] = validate_project($_REQUEST['p']);
 289
 290         $info = git_get_commit_info($page['project']);
 291         $page['commit_id'] = $info['h'];
 292         $page['tree_id'] = $info['tree'];
 293
 294         $type = $_REQUEST['st'];
 295         $string = $_REQUEST['s'];
 296
 297         $page['search_t'] = $type;
 298         $page['search_s'] = $string;
 299
 300         $commits = git_search_commits($page['project'], $type, $string);
 301         $shortlog = array();
 302         foreach ($commits as $c) {
 303                 $info = git_get_commit_info($page['project'], $c);
 304                 $shortlog[] = array(
 305                         'author' => $info['author_name'],
 306                         'date' => gmstrftime($conf['datetime'], $info['author_utcstamp']),
 307                         'message' => $info['message'],
 308                         'commit_id' => $info['h'],
 309                         'tree' => $info['tree'],
 310                         'refs' => array(),
 311                 );
 312         }
 313         $page['shortlog'] = $shortlog;
 314 }
 315
 316 /*
 317  * shortlog - project shortlog entries
 318  * @param p project
 319  * @param h OPTIONAL commit id to start showing log from
 320  */
 321 elseif ($action === 'shortlog') {
 322         $template = 'shortlog';
 323         $page['project'] = validate_project($_REQUEST['p']);
 324         $page['title'] = "$page[project] - Shortlog - ViewGit";
 325         $page['subtitle'] = "Shortlog";
 326         if (isset($_REQUEST['h'])) {
 327                 $page['ref'] = validate_hash($_REQUEST['h']);
 328         } else {
 329                 $page['ref'] = 'HEAD';
 330         }
 331
 332         $info = git_get_commit_info($page['project'], $page['ref']);
 333         $page['commit_id'] = $info['h'];
 334         $page['tree_id'] = $info['tree'];
 335
 336         $page['shortlog'] = handle_shortlog($page['project'], $page['ref']);
 337 }
 338 elseif ($action === 'summary') {
 339         $template = 'summary';
 340         $page['project'] = validate_project($_REQUEST['p']);
 341         $page['title'] = "$page[project] - Summary - ViewGit";
 342         $page['subtitle'] = "Summary";
 343
 344         $info = git_get_commit_info($page['project']);
 345         $page['commit_id'] = $info['h'];
 346         $page['tree_id'] = $info['tree'];
 347
 348         $page['shortlog'] = handle_shortlog($page['project']);
 349
 350         $page['tags'] = handle_tags($page['project'], $conf['summary_tags']);
 351
 352         $heads = git_get_heads($page['project']);
 353         $page['heads'] = array();
 354         foreach ($heads as $h) {
 355                 $info = git_get_commit_info($page['project'], $h['h']);
 356                 $page['heads'][] = array(
 357                         'date' => gmstrftime($conf['datetime'], $info['author_utcstamp']),
 358                         'h' => $h['h'],
 359                         'fullname' => $h['fullname'],
 360                         'name' => $h['name'],
 361                 );
 362         }
 363 }
 364 elseif ($action === 'tags') {
 365         $template = 'tags';
 366         $page['project'] = validate_project($_REQUEST['p']);
 367         $page['title'] = "$page[project] - Tags - ViewGit";
 368
 369         $info = git_get_commit_info($page['project']);
 370         $page['commit_id'] = $info['h'];
 371         $page['tree_id'] = $info['tree'];
 372
 373         $page['tags'] = handle_tags($page['project']);
 374 }
 375 /*
 376  * Shows a tree, with list of directories/files, links to them and download
 377  * links to archives.
 378  *
 379  * @param p project
 380  * @param h tree hash
 381  * @param hb OPTIONAL base commit (trees can be part of multiple commits, this
 382  * one denotes which commit the user navigated from)
 383  * @param f OPTIONAL path the user has followed to view this tree
 384  */
 385 elseif ($action === 'tree') {
 386         $template = 'tree';
 387         $page['project'] = validate_project($_REQUEST['p']);
 388         if (isset($_REQUEST['h'])) {
 389                 $page['tree_id'] = validate_hash($_REQUEST['h']);
 390         }
 391         /*
 392         else {
 393                 // TODO walk the tree
 394                 $page['tree_id'] = 'HEAD';
 395         }
 396         */
 397         $page['title'] = "$page[project] - Tree - ViewGit";
 398
 399         // 'hb' optionally contains the commit_id this tree is related to
 400         if (isset($_REQUEST['hb'])) {
 401                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 402         }
 403         else {
 404                 // for the header
 405                 $info = git_get_commit_info($page['project']);
 406                 $page['commit_id'] = $info['h'];
 407         }
 408
 409         $page['path'] = '';
 410         if (isset($_REQUEST['f'])) {
 411                 $page['path'] = $_REQUEST['f']; // TODO validate?
 412         }
 413
 414         // get path info for the header
 415         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
 416         if (!isset($page['tree_id'])) {
 417                 // Take the last hash from the tree
 418                 if (count($page['pathinfo']) > 0) {
 419                         $page['tree_id'] = $page['pathinfo'][count($page['pathinfo']) - 1]['hash'];
 420                 } else {
 421                         $page['tree_id'] = 'HEAD';
 422                 }
 423         }
 424
 425         $page['subtitle'] = "Tree ". substr($page['tree_id'], 0, 6);
 426         $page['entries'] = git_ls_tree($page['project'], $page['tree_id']);
 427 }
 428 /*
 429  * View a blob as inline, embedded on the page.
 430  * @param p project
 431  * @param h blob hash
 432  * @param hb OPTIONAL base commit
 433  */
 434 elseif ($action === 'viewblob') {
 435         $template = 'blob';
 436         $page['project'] = validate_project($_REQUEST['p']);
 437         $page['hash'] = validate_hash($_REQUEST['h']);
 438         $page['title'] = "$page[project] - Blob - ViewGit";
 439         if (isset($_REQUEST['hb'])) {
 440                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 441         }
 442         else {
 443                 $page['commit_id'] = 'HEAD';
 444         }
 445         $page['subtitle'] = "Blob ". substr($page['hash'], 0, 6);
 446
 447         $page['path'] = '';
 448         if (isset($_REQUEST['f'])) {
 449                 $page['path'] = $_REQUEST['f']; // TODO validate?
 450         }
 451
 452         // For the header's pagenav
 453         $info = git_get_commit_info($page['project'], $page['commit_id']);
 454         $page['commit_id'] = $info['h'];
 455         $page['tree_id'] = $info['tree'];
 456
 457         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
 458
 459         $page['data'] = join("\n", run_git($page['project'], "cat-file blob $page[hash]"));
 460
 461         // GeSHi support
 462         if ($conf['geshi'] && strpos($page['path'], '.')) {
 463                 $old_mask = error_reporting(E_ALL ^ E_NOTICE);
 464                 require_once($conf['geshi_path']);
 465                 $ext = array_pop(explode('.', $page['path']));
 466                 $lang = Geshi::get_language_name_from_extension($ext);
 467                 if (strlen($lang) > 0) {
 468                         $geshi =& new Geshi($page['data'], $lang);
 469                         if (is_int($conf['geshi_line_numbers'])) {
 470                                 if ($conf['geshi_line_numbers'] == 0) {
 471                                         $geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
 472                                 }
 473                                 else {
 474                                         $geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, $conf['geshi_line_numbers']);
 475                                 }
 476                         }
 477                         $page['html_data'] = $geshi->parse_code();
 478                 }
 479                 error_reporting($old_mask);
 480         }
 481 }
 482 elseif (in_array($action, array_keys(VGPlugin::$plugin_actions))) {
 483         VGPlugin::$plugin_actions[$action]->action($action);
 484         die();
 485 }
 486 else {
 487         die('Invalid action');
 488 }
 489
 490 require 'templates/header.php';
 491 require "templates/$template.php";
 492 require 'templates/footer.php';