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