index.php

   1 <?php
   2 error_reporting(E_ALL);
   3
   4 require_once('inc/config.php');
   5
   6 /**
   7  * Formats "git diff" output into xhtml.
   8  */
   9 function format_diff($text)
  10 {
  11         $text = htmlentities($text);
  12
  13         $text = preg_replace(
  14                 array(
  15                         '/^(\+.*)$/m',
  16                         '/^(-.*)$/m',
  17                         '/^(@.*)$/m',
  18                         '/^([^\+-@].*)$/m',
  19                 ),
  20                 array(
  21                         '<span class="add">$1</span>',
  22                         '<span class="del">$1</span>',
  23                         '<span class="pos">$1</span>',
  24                         '<span class="etc">$1</span>',
  25                 ),
  26                 $text);
  27
  28         return $text;
  29 }
  30
  31 function get_project_info($name)
  32 {
  33         global $conf;
  34
  35         $info = $conf['projects'][$name];
  36         $info['name'] = $name;
  37         $info['description'] = file_get_contents($info['repo'] .'/description');
  38
  39         $headinfo = git_get_commit_info($name, 'HEAD');
  40         $info['head_stamp'] = $headinfo['author_utcstamp'];
  41         $info['head_datetime'] = strftime($conf['datetime'], $headinfo['author_utcstamp']);
  42         $info['head_hash'] = $headinfo['h'];
  43         $info['head_tree'] = $headinfo['tree'];
  44
  45         return $info;
  46 }
  47
  48 /**
  49  * Get details of a commit: tree, parent, author/committer (name, mail, date), message
  50  */
  51 function git_get_commit_info($project, $hash)
  52 {
  53         $info = array();
  54         $info['h'] = $hash;
  55         $info['message_full'] = '';
  56
  57         $output = run_git($project, "git rev-list --header --max-count=1 $hash");
  58         // tree <h>
  59         // parent <h>
  60         // author <name> "<"<mail>">" <stamp> <timezone>
  61         // committer
  62         // <empty>
  63         //     <message>
  64         $pattern = '/^(author|committer) ([^<]+) <([^>]*)> ([0-9]+) (.*)$/';
  65         foreach ($output as $line) {
  66                 if (substr($line, 0, 4) === 'tree') {
  67                         $info['tree'] = substr($line, 5);
  68                 }
  69                 elseif (substr($line, 0, 6) === 'parent') {
  70                         $info['parent']  = substr($line, 7);
  71                 }
  72                 elseif (preg_match($pattern, $line, $matches) > 0) {
  73                         $info[$matches[1] .'_name'] = $matches[2];
  74                         $info[$matches[1] .'_mail'] = $matches[3];
  75                         $info[$matches[1] .'_stamp'] = $matches[4];
  76                         $info[$matches[1] .'_timezone'] = $matches[5];
  77                         $info[$matches[1] .'_utcstamp'] = $matches[4] - ((intval($matches[5]) / 100.0) * 3600);
  78                 }
  79                 elseif (substr($line, 0, 4) === '    ') {
  80                         $info['message_full'] .= substr($line, 4) ."\n";
  81                         if (!isset($info['message'])) {
  82                                 $info['message'] = substr($line, 4, 40);
  83                         }
  84                 }
  85         }
  86
  87         return $info;
  88 }
  89
  90 function git_get_heads($project)
  91 {
  92         $heads = array();
  93
  94         $output = run_git($project, 'git show-ref --heads');
  95         foreach ($output as $line) {
  96                 $fullname = substr($line, 41);
  97                 $name = array_pop(explode('/', $fullname));
  98                 $heads[] = array('h' => substr($line, 0, 40), 'fullname' => "$fullname", 'name' => "$name");
  99         }
 100
 101         return $heads;
 102 }
 103
 104 function git_get_rev_list($project, $max_count = null, $start = 'HEAD')
 105 {
 106         $cmd = "git rev-list $start";
 107         if (!is_null($max_count)) {
 108                 $cmd = "git rev-list --max-count=$max_count $start";
 109         }
 110
 111         return run_git($project, $cmd);
 112 }
 113
 114 function git_get_tags($project)
 115 {
 116         $tags = array();
 117
 118         $output = run_git($project, 'git show-ref --tags');
 119         foreach ($output as $line) {
 120                 $fullname = substr($line, 41);
 121                 $name = array_pop(explode('/', $fullname));
 122                 $tags[] = array('h' => substr($line, 0, 40), 'fullname' => $fullname, 'name' => $name);
 123         }
 124         return $tags;
 125 }
 126
 127 function git_ls_tree($project, $tree)
 128 {
 129         $entries = array();
 130         $output = run_git($project, "git ls-tree $tree");
 131         // 100644 blob 493b7fc4296d64af45dac64bceac2d9a96c958c1    .gitignore
 132         // 040000 tree 715c78b1011dc58106da2a1af2fe0aa4c829542f    doc
 133         foreach ($output as $line) {
 134                 $parts = preg_split('/\s+/', $line, 4);
 135                 $entries[] = array('name' => $parts[3], 'mode' => $parts[0], 'type' => $parts[1], 'hash' => $parts[2]);
 136         }
 137
 138         return $entries;
 139 }
 140
 141 function makelink($dict)
 142 {
 143         $params = array();
 144         foreach ($dict as $k => $v) {
 145                 $params[] = rawurlencode($k) .'='. str_replace('%2F', '/', rawurlencode($v));
 146         }
 147         if (count($params) > 0) {
 148                 return '?'. htmlentities(join('&', $params));
 149         }
 150         return '';
 151 }
 152
 153 /**
 154  * Executes a git command in the project repo.
 155  * @return array of output lines
 156  */
 157 function run_git($project, $command)
 158 {
 159         global $conf;
 160
 161         $output = array();
 162         $cmd = "GIT_DIR=". $conf['projects'][$project]['repo'] ." $command";
 163         exec($cmd, &$output);
 164         return $output;
 165 }
 166
 167 /**
 168  * Executes a git command in the project repo, sending output directly to the
 169  * client.
 170  */
 171 function run_git_passthru($project, $command)
 172 {
 173         global $conf;
 174
 175         $cmd = "GIT_DIR=". $conf['projects'][$project]['repo'] ." $command";
 176         $result = 0;
 177         passthru($cmd, &$result);
 178         return $result;
 179 }
 180
 181 /**
 182  * Makes sure the given project is valid. If it's not, this function will
 183  * die().
 184  * @return the project
 185  */
 186 function validate_project($project)
 187 {
 188         global $conf;
 189
 190         if (!in_array($project, array_keys($conf['projects']))) {
 191                 die('Invalid project');
 192         }
 193         return $project;
 194 }
 195
 196 /**
 197  * Makes sure the given hash is valid. If it's not, this function will die().
 198  * @return the hash
 199  */
 200 function validate_hash($hash)
 201 {
 202         if (strlen($hash) != 40 || !preg_match('/^[0-9a-z]*$/', $hash)) {
 203                 die('Invalid hash');
 204
 205         }
 206         return $hash;
 207 }
 208
 209 $action = 'index';
 210 $template = 'index';
 211 $page['title'] = 'ViewGit';
 212
 213 if (isset($_REQUEST['a'])) {
 214         $action = strtolower($_REQUEST['a']);
 215 }
 216 $page['action'] = $action;
 217
 218 if ($action === 'index') {
 219         $template = 'index';
 220         $page['title'] = 'List of projects - ViewGit';
 221
 222         foreach (array_keys($conf['projects']) as $p) {
 223                 $page['projects'][] = get_project_info($p);
 224         }
 225 }
 226 elseif ($action === 'archive') {
 227         $project = validate_project($_REQUEST['p']);
 228         $tree = validate_hash($_REQUEST['h']);
 229         $type = $_REQUEST['t'];
 230
 231         // TODO check that the data passed is really valid
 232         if ($type === 'targz') {
 233                 header("Content-Type: application/x-tar-gz");
 234                 header("Content-Transfer-Encoding: binary");
 235                 header("Content-Disposition: attachment; filename=\"$project-tree-$tree.tar.gz\";");
 236                 /*
 237                 $data = join("\n", run_git($project, "git archive --format=tar $tree |gzip"));
 238                 header("Content-Length: ". strlen($data));
 239                 echo $data;
 240                 */
 241                 run_git_passthru($project, "git archive --format=tar $tree |gzip");
 242         }
 243         elseif ($type === 'zip') {
 244                 header("Content-Type: application/x-zip");
 245                 header("Content-Transfer-Encoding: binary");
 246                 header("Content-Disposition: attachment; filename=\"$project-tree-$tree.zip\";");
 247                 /*
 248                 $data = join("\n", run_git($project, "git archive --format=zip $tree"));
 249                 header("Content-Length: ". strlen($data));
 250                 echo $data;
 251                 */
 252                 run_git_passthru($project, "git archive --format=zip $tree");
 253         }
 254         else {
 255                 die('Invalid archive type requested');
 256         }
 257
 258         die();
 259 }
 260 elseif ($action === 'blob') {
 261         $page['project'] = validate_project($_REQUEST['p']);
 262         $page['hash'] = validate_hash($_REQUEST['h']);
 263
 264         header('Content-type: text/plain');
 265
 266         run_git_passthru($page['project'], "git cat-file blob $page[hash]");
 267         die();
 268 }
 269 elseif ($action === 'commit') {
 270         $template = 'commit';
 271         $page['project'] = validate_project($_REQUEST['p']);
 272         $page['commit_id'] = validate_hash($_REQUEST['h']);
 273
 274         $info = git_get_commit_info($page['project'], $page['commit_id']);
 275
 276         $page['author_name'] = $info['author_name'];
 277         $page['author_mail'] = $info['author_mail'];
 278         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 279         $page['author_datetime_local'] = strftime($conf['datetime'], $info['author_stamp']) .' '. $info['author_timezone'];
 280         $page['committer_name'] = $info['committer_name'];
 281         $page['committer_mail'] = $info['committer_mail'];
 282         $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_utcstamp']);
 283         $page['committer_datetime_local'] = strftime($conf['datetime'], $info['committer_stamp']) .' '. $info['committer_timezone'];
 284         $page['tree'] = $info['tree'];
 285         $page['parent'] = $info['parent'];
 286         $page['message'] = $info['message'];
 287         $page['message_full'] = $info['message_full'];
 288
 289 }
 290 elseif ($action === 'commitdiff') {
 291         $template = 'commitdiff';
 292         $page['project'] = validate_project($_REQUEST['p']);
 293         $hash = validate_hash($_REQUEST['h']);
 294         $page['commit_id'] = $hash;
 295
 296         $info = git_get_commit_info($page['project'], $hash);
 297
 298         $page['message'] = $info['message'];
 299         $page['message_full'] = $info['message_full'];
 300         $page['author_name'] = $info['author_name'];
 301         $page['author_mail'] = $info['author_mail'];
 302         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 303
 304         $text = join("\n", run_git($page['project'], "git diff $hash^..$hash"));
 305         $page['diffdata'] = format_diff($text);
 306 }
 307 elseif ($action === 'shortlog') {
 308         $template = 'shortlog';
 309         $page['project'] = validate_project($_REQUEST['p']);
 310         $page['ref'] = $_REQUEST['h']; // TODO validate
 311
 312         // TODO merge the logic with 'summary' below
 313         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog'], $page['ref']); // TODO pass first rev as parameter
 314         foreach ($revs as $rev) {
 315                 $info = git_get_commit_info($page['project'], $rev);
 316                 $page['shortlog'][] = array(
 317                         'author' => $info['author_name'],
 318                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 319                         'message' => $info['message'],
 320                         'commit_id' => $rev,
 321                         'tree' => $info['tree'],
 322                 );
 323         }
 324 }
 325 elseif ($action === 'summary') {
 326         $template = 'summary';
 327         $page['project'] = validate_project($_REQUEST['p']);
 328         $page['title'] = "$page[project] - Summary - ViewGit";
 329
 330         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog']);
 331         foreach ($revs as $rev) {
 332                 $info = git_get_commit_info($page['project'], $rev);
 333                 $page['shortlog'][] = array(
 334                         'author' => $info['author_name'],
 335                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 336                         'message' => $info['message'],
 337                         'commit_id' => $rev,
 338                         'tree' => $info['tree'],
 339                 );
 340         }
 341
 342         $tags = git_get_tags($page['project']);
 343         $page['tags'] = array();
 344         foreach ($tags as $tag) {
 345                 $info = git_get_commit_info($page['project'], $tag['h']);
 346                 $page['tags'][] = array(
 347                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 348                         'h' => $tag['h'],
 349                         'fullname' => $tag['fullname'],
 350                         'name' => $tag['name'],
 351                 );
 352         }
 353
 354         $heads = git_get_heads($page['project']);
 355         $page['heads'] = array();
 356         foreach ($heads as $h) {
 357                 $info = git_get_commit_info($page['project'], $h['h']);
 358                 $page['heads'][] = array(
 359                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 360                         'h' => $h['h'],
 361                         'fullname' => $h['fullname'],
 362                         'name' => $h['name'],
 363                 );
 364         }
 365 }
 366 elseif ($action === 'tree') {
 367         $template = 'tree';
 368         $page['project'] = validate_project($_REQUEST['p']);
 369         $page['tree'] = validate_hash($_REQUEST['h']);
 370         $page['title'] = "$page[project] - Tree - ViewGit";
 371
 372         $page['entries'] = git_ls_tree($page['project'], $page['tree']);
 373 }
 374 else {
 375         die('Invalid action');
 376 }
 377
 378 require 'templates/header.php';
 379 require "templates/$template.php";
 380 require 'templates/footer.php';