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);
  11
  12 require_once('inc/config.php');
  13 require_once('inc/functions.php');
  14
  15 if (isset($conf['projects_glob'])) {
  16         foreach ($conf['projects_glob'] as $glob) {
  17                 foreach (glob($glob) as $path) {
  18                         // Get the last part of the path before .git
  19                         $name = preg_replace(array('#/?\.git$#', '#^.*/#'), array('', ''), $path);
  20
  21                         // Workaround against name collisions; proj, proj1, proj2, ...
  22                         $i = '';
  23                         while (in_array($name . $i, array_keys($conf['projects']))) {
  24                                 @$i++;
  25                         }
  26                         $name = $name . $i;
  27                         $conf['projects'][$name] = array('repo' => $path);
  28                 }
  29         }
  30 }
  31
  32 $action = 'index';
  33 $template = 'index';
  34 $page['title'] = 'ViewGit';
  35
  36 if (isset($_REQUEST['a'])) {
  37         $action = strtolower($_REQUEST['a']);
  38 }
  39 $page['action'] = $action;
  40
  41 if ($action === 'index') {
  42         $template = 'index';
  43         $page['title'] = 'List of projects - ViewGit';
  44
  45         foreach (array_keys($conf['projects']) as $p) {
  46                 $page['projects'][] = get_project_info($p);
  47         }
  48 }
  49 elseif ($action === 'archive') {
  50         $project = validate_project($_REQUEST['p']);
  51         $tree = validate_hash($_REQUEST['h']);
  52         $type = $_REQUEST['t'];
  53
  54         $basename = "$project-tree-". substr($tree, 0, 7);
  55         if (isset($_REQUEST['n'])) {
  56                 $basename = "$project-$_REQUEST[n]-". substr($tree, 0, 6);
  57         }
  58
  59         if ($type === 'targz') {
  60                 header("Content-Type: application/x-tar-gz");
  61                 header("Content-Transfer-Encoding: binary");
  62                 header("Content-Disposition: attachment; filename=\"$basename.tar.gz\";");
  63                 run_git_passthru($project, "git archive --format=tar $tree |gzip");
  64         }
  65         elseif ($type === 'zip') {
  66                 header("Content-Type: application/x-zip");
  67                 header("Content-Transfer-Encoding: binary");
  68                 header("Content-Disposition: attachment; filename=\"$basename.zip\";");
  69                 run_git_passthru($project, "git archive --format=zip $tree");
  70         }
  71         else {
  72                 die('Invalid archive type requested');
  73         }
  74
  75         die();
  76 }
  77 // blob: send a blob to browser with filename suggestion
  78 elseif ($action === 'blob') {
  79         $project = validate_project($_REQUEST['p']);
  80         $hash = validate_hash($_REQUEST['h']);
  81         $name = $_REQUEST['n'];
  82
  83         header('Content-type: application/octet-stream');
  84         header("Content-Disposition: attachment; filename=$name"); // FIXME needs quotation
  85
  86         run_git_passthru($project, "git cat-file blob $hash");
  87         die();
  88 }
  89 /**
  90  * git checkout.
  91  */
  92 elseif ($action === 'co') {
  93         if (!$conf['allow_checkout']) { die('Checkout not allowed'); }
  94
  95         // For debugging
  96         debug("Project: $_REQUEST[p] Request: $_REQUEST[r]");
  97
  98         // eg. info/refs, HEAD
  99         $p = validate_project($_REQUEST['p']); // project
 100         $r = $_REQUEST['r']; // path
 101
 102         $gitdir = $conf['projects'][$p]['repo'];
 103         $filename = $gitdir .'/'. $r;
 104
 105         // make sure the request is legit (no reading of other files besides those under git projects)
 106         if ($r === 'HEAD' || $r === 'info/refs' || preg_match('!^objects/info/(packs|http-alternates|alternates)$!', $r) > 0 || preg_match('!^objects/[0-9a-f]{2}/[0-9a-f]{38}$!', $r) > 0) {
 107                 if (file_exists($filename)) {
 108                         debug('OK, sending');
 109                         readfile($filename);
 110                 } else {
 111                         debug('Not found');
 112                         header('404');
 113                 }
 114         } else {
 115                 debug("Denied");
 116         }
 117
 118         die();
 119 }
 120 elseif ($action === 'commit') {
 121         $template = 'commit';
 122         $page['project'] = validate_project($_REQUEST['p']);
 123         $page['title'] = "$page[project] - Commit - ViewGit";
 124         $page['commit_id'] = validate_hash($_REQUEST['h']);
 125
 126         $info = git_get_commit_info($page['project'], $page['commit_id']);
 127
 128         $page['author_name'] = $info['author_name'];
 129         $page['author_mail'] = $info['author_mail'];
 130         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 131         $page['author_datetime_local'] = strftime($conf['datetime'], $info['author_stamp']) .' '. $info['author_timezone'];
 132         $page['committer_name'] = $info['committer_name'];
 133         $page['committer_mail'] = $info['committer_mail'];
 134         $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_utcstamp']);
 135         $page['committer_datetime_local'] = strftime($conf['datetime'], $info['committer_stamp']) .' '. $info['committer_timezone'];
 136         $page['tree_id'] = $info['tree'];
 137         $page['parents'] = $info['parents'];
 138         $page['message'] = $info['message'];
 139         $page['message_firstline'] = $info['message_firstline'];
 140         $page['message_full'] = $info['message_full'];
 141
 142 }
 143 elseif ($action === 'commitdiff') {
 144         $template = 'commitdiff';
 145         $page['project'] = validate_project($_REQUEST['p']);
 146         $page['title'] = "$page[project] - Commitdiff - ViewGit";
 147         $hash = validate_hash($_REQUEST['h']);
 148         $page['commit_id'] = $hash;
 149
 150         $info = git_get_commit_info($page['project'], $hash);
 151
 152         $page['tree_id'] = $info['tree'];
 153
 154         $page['message'] = $info['message'];
 155         $page['message_firstline'] = $info['message_firstline'];
 156         $page['message_full'] = $info['message_full'];
 157         $page['author_name'] = $info['author_name'];
 158         $page['author_mail'] = $info['author_mail'];
 159         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 160
 161         $text = join("\n", run_git($page['project'], "git diff $hash^..$hash"));
 162         list($page['files'], $page['diffdata']) = format_diff($text);
 163         //$page['diffdata'] = format_diff($text);
 164 }
 165 elseif ($action === 'rss-log') {
 166         $page['project'] = validate_project($_REQUEST['p']);
 167
 168         $ext_url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']) .'/';
 169
 170         $page['rss_title'] = "Log for $page[project]";
 171         $page['rss_link'] = $ext_url . makelink(array('a' => 'summary', 'p' => $page['project']));
 172         $page['rss_description'] = "Git log for project $page[project], generated by ViewGit.";
 173         $page['rss_pubDate'] = rss_pubdate(time());
 174         $page['rss_ttl'] = $conf['rss_ttl'];
 175
 176         $page['rss_items'] = array();
 177
 178         $revs = git_get_rev_list($page['project'], $conf['rss_max_items']);
 179         foreach ($revs as $rev) {
 180                 $info = git_get_commit_info($page['project'], $rev);
 181                 $link = $ext_url . makelink(array('a' => 'commit', 'p' => $page['project'], 'h' => $rev));
 182
 183                 $page['rss_items'][] = array(
 184                         'title' => rss_item_format($conf['rss_item_title'], $info),
 185                         'guid' => $link,
 186                         'link' => $link,
 187                         'description' => rss_item_format($conf['rss_item_description'], $info),
 188                         'pubdate' => rss_pubdate($info['author_stamp']),
 189                 );
 190         }
 191
 192         require('templates/rss.php');
 193         die();
 194 }
 195 elseif ($action === 'shortlog') {
 196         $template = 'shortlog';
 197         $page['project'] = validate_project($_REQUEST['p']);
 198         $page['title'] = "$page[project] - Shortlog - ViewGit";
 199         if (isset($_REQUEST['h'])) {
 200                 $page['ref'] = validate_hash($_REQUEST['h']);
 201         } else {
 202                 $page['ref'] = 'HEAD';
 203         }
 204
 205         $info = git_get_commit_info($page['project'], $page['ref']);
 206         $page['commit_id'] = $info['h'];
 207         $page['tree_id'] = $info['tree'];
 208
 209         // TODO merge the logic with 'summary' below
 210         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog'], $page['ref']); // TODO pass first rev as parameter
 211         foreach ($revs as $rev) {
 212                 $info = git_get_commit_info($page['project'], $rev);
 213                 $page['shortlog'][] = array(
 214                         'author' => $info['author_name'],
 215                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 216                         'message' => $info['message'],
 217                         'commit_id' => $rev,
 218                         'tree' => $info['tree'],
 219                 );
 220         }
 221 }
 222 elseif ($action === 'summary') {
 223         $template = 'summary';
 224         $page['project'] = validate_project($_REQUEST['p']);
 225         $page['title'] = "$page[project] - Summary - ViewGit";
 226
 227         $info = git_get_commit_info($page['project']);
 228         $page['commit_id'] = $info['h'];
 229         $page['tree_id'] = $info['tree'];
 230
 231         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog']);
 232         foreach ($revs as $rev) {
 233                 $info = git_get_commit_info($page['project'], $rev);
 234                 $page['shortlog'][] = array(
 235                         'author' => $info['author_name'],
 236                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 237                         'message' => $info['message'],
 238                         'commit_id' => $rev,
 239                         'tree' => $info['tree'],
 240                 );
 241         }
 242
 243         $tags = git_get_tags($page['project']);
 244         $page['tags'] = array();
 245         foreach ($tags as $tag) {
 246                 $info = git_get_commit_info($page['project'], $tag['h']);
 247                 $page['tags'][] = array(
 248                         'stamp' => $info['author_utcstamp'],
 249                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 250                         'h' => $tag['h'],
 251                         'fullname' => $tag['fullname'],
 252                         'name' => $tag['name'],
 253                 );
 254         }
 255         // sort tags newest first
 256         // aka. two more reasons to hate PHP (figuring those out is your homework:)
 257         $arr = $page['tags'];
 258         usort($arr, create_function(
 259                 '$x, $y',
 260                 '$a = $x["stamp"]; $b = $y["stamp"]; return ($a == $b ? 0 : ($a > $b ? -1 : 1));'
 261         ));
 262         // it's actually three, I lied.
 263         $page['tags'] = $arr;
 264
 265         $heads = git_get_heads($page['project']);
 266         $page['heads'] = array();
 267         foreach ($heads as $h) {
 268                 $info = git_get_commit_info($page['project'], $h['h']);
 269                 $page['heads'][] = array(
 270                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 271                         'h' => $h['h'],
 272                         'fullname' => $h['fullname'],
 273                         'name' => $h['name'],
 274                 );
 275         }
 276 }
 277 /*
 278  * Shows a tree, with list of directories/files, links to them and download
 279  * links to archives.
 280  *
 281  * @param p project
 282  * @param h tree hash
 283  * @param hb OPTIONAL base commit (trees can be part of multiple commits, this
 284  * one denotes which commit the user navigated from)
 285  * @param f OPTIONAL path the user has followed to view this tree
 286  */
 287 elseif ($action === 'tree') {
 288         $template = 'tree';
 289         $page['project'] = validate_project($_REQUEST['p']);
 290         $page['tree_id'] = validate_hash($_REQUEST['h']);
 291         $page['title'] = "$page[project] - Tree - ViewGit";
 292
 293         // 'hb' optionally contains the commit_id this tree is related to
 294         if (isset($_REQUEST['hb'])) {
 295                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 296         }
 297         else {
 298                 // for the header
 299                 $info = git_get_commit_info($page['project']);
 300                 $page['commit_id'] = $info['h'];
 301         }
 302
 303         $page['path'] = '';
 304         if (isset($_REQUEST['f'])) {
 305                 $page['path'] = $_REQUEST['f']; // TODO validate?
 306         }
 307
 308         // get path info for the header
 309         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], explode('/', $page['path']));
 310
 311         $page['entries'] = git_ls_tree($page['project'], $page['tree_id']);
 312 }
 313 /*
 314  * View a blob as inline, embedded on the page.
 315  * @param p project
 316  * @param h blob hash
 317  * @param hb OPTIONAL base commit
 318  */
 319 elseif ($action === 'viewblob') {
 320         $template = 'blob';
 321         $page['project'] = validate_project($_REQUEST['p']);
 322         $page['hash'] = validate_hash($_REQUEST['h']);
 323         $page['title'] = "$page[project] - Blob - ViewGit";
 324         if (isset($_REQUEST['hb'])) {
 325                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 326         }
 327         else {
 328                 $page['commit_id'] = 'HEAD';
 329         }
 330
 331         $page['path'] = '';
 332         if (isset($_REQUEST['f'])) {
 333                 $page['path'] = $_REQUEST['f']; // TODO validate?
 334         }
 335
 336         // For the header's pagenav
 337         $info = git_get_commit_info($page['project'], $page['commit_id']);
 338         $page['commit_id'] = $info['h'];
 339         $page['tree_id'] = $info['tree'];
 340
 341         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], explode('/', $page['path']));
 342
 343         $page['data'] = join("\n", run_git($page['project'], "git cat-file blob $page[hash]"));
 344 }
 345 else {
 346         die('Invalid action');
 347 }
 348
 349 require 'templates/header.php';
 350 require "templates/$template.php";
 351 require 'templates/footer.php';