last update: Sat, 07 Feb 2015 11:23:09 +0000
  1. <?php
  2. require_once('mysql_cfg.php');
  5. function debug_print ($ar) {
  6. foreach ($ar as $a) {
  7. echo "$a --- ";
  8. }
  9. echo "<br \>\n";
  10. }
  12. function debug_print2 ($ar, $fh) {
  13. foreach ($ar as $a) {
  14. fwrite($fh, "$a --- ");
  15. }
  16. fwrite($fh, "<br \>\n");
  17. }
  19. function makeGraph($text, $options) {
  20. $text = trim($text)."\n";
  21. $pos = 0;
  22. $len = strlen($text);
  24. /*$debug = "<pre>== Text ==\n$text</pre>
  25. <pre>== Options ==\n$options</pre>";
  26. $fh = fopen("svgtemp/debug.html", 'w');
  27. fwrite($fh, $debug);*/
  31. $state = 0;
  32. $parents = array();
  33. $tabs = 0;
  34. $word = "";
  36. /*$output = "digraph G {
  37. splines=true;
  38. overlap=false;
  39. edge [len=0.1];
  40. edge [weight=3.0];
  42. ";*/
  43. $output = 'digraph G {
  44. ';
  45. $output.=$options."\n";
  47. $shapes = array();
  49. while ($pos < $len) {
  50. $c = $text[$pos];
  51. switch ($state) {
  52. case 0:
  53. //start of line / reading tabs
  54. switch ($c) {
  55. case "\n":
  56. //skip
  57. break;
  58. case " ":
  59. //tab
  60. $tabs++;
  61. break;
  62. case " ":
  63. //space
  64. //$tabs++;
  65. break;
  66. default:
  67. $word.=$c;
  68. $state = 1;
  69. }
  70. break;
  71. case 1:
  72. //reading the word
  73. switch ($c) {
  74. case "\n":
  75. //word finished
  76. $word = trim($word);
  77. if (strlen($word) > 0) {
  78. $parent = null;
  79. if ($tabs >= count($parents)) {
  80. //mehr tabs -> parent ist oberstes element
  81. if (count($parents) > 0) {
  82. $parent = $parents[count($parents)-1];
  83. }
  84. } else {
  85. //weniger tabs -> vom parentsstapel werfen
  86. while ($tabs <= count($parents)) {
  87. $parent = array_pop($parents);
  88. if ($parent == null) {
  89. break;
  90. }
  91. }
  92. if ($parent != null) {
  93. $parents[] = $parent;
  94. }
  95. }
  97. if ($parent != null) {
  99. $colPos = strpos($word, ":");
  100. $shape = false;
  101. if ($colPos > 0) {
  103. $newword = trim(substr($word, 0, $colPos));
  104. $shape = trim(substr($word, $colPos+1));
  105. $word = $newword;
  106. }
  108. $gtPos = strpos($word, ">");
  110. if ($gtPos) {
  111. $label = trim(substr($word, 0, $gtPos));
  112. $word = trim(substr($word, $gtPos+1));
  115. $output .= "\"$parent\" -> \"$word\" [label = \"$label\"];\n";
  117. } else {
  118. $output .= "\"$parent\" -> \"$word\";\n";
  119. }
  120. if ($shape) {
  121. $shapes[$word] = $shape;
  122. }
  124. } else {
  125. //no parent
  126. $colPos = strpos($word, ":");
  127. $shape = false;
  128. if ($colPos > 0) {
  130. $newword = trim(substr($word, 0, $colPos));
  131. $shape = trim(substr($word, $colPos+1));
  132. $word = $newword;
  133. $shapes[$word] = $shape;
  134. }
  135. }
  136. $parents[] = $word;
  137. }
  138. $word = "";
  139. $state = 0;
  140. $tabs = 0;
  141. break;
  142. default:
  143. $word.=$c;
  144. }
  145. break;
  146. }
  149. $pos++;
  150. }
  152. foreach ($shapes as $word => $shape) {
  153. if (in_array($shape, array('ellipse', 'box', 'circle', 'doublecircle', 'diamond','plaintext'))) {
  154. $output .= "\"$word\" [shape = $shape];\n";
  155. }
  156. }
  159. $output .= "}";
  161. return $output;
  162. }
  164. if (!isset($_GET['id'])) {
  165. die('ungültige Adresse');
  166. } else {
  167. $id = intval($_GET['id']);
  169. $format = "png";
  170. if (isset($_GET['format'])) {
  171. if (in_array($_GET['format'], array("jpg", "png", "svg"))) {
  172. $format = $_GET['format'];
  173. }
  174. }
  175. $outfile = "svgtemp/graph$id.$format";
  176. if (!file_exists($outfile)) {
  177. //file does not exist, create it
  178. $qry = 'SELECT * FROM graph WHERE `id` = "'.$id.'"';
  179. $data = mysql_query($qry);
  180. if ($row = mysql_fetch_array($data)) {
  181. $text = $row['text'];
  182. $options = $row['options'];
  183. $engine = $row['engine'];
  184. $debug = "<pre>== Row ==\n".print_r($row, true)."</pre>";
  186. $fh = fopen("svgtemp/debug.html", 'w');
  187. fwrite($fh, $debug);
  188. fclose($fh);
  191. $filename = "svgtemp/graph$id.dot";
  192. $graph = makeGraph($text, $options);
  195. $fh = fopen($filename, 'w');
  196. fwrite($fh, $graph);
  197. fclose($fh);
  199. $output = array();
  200. exec("$engine -T$format $filename -o $outfile -Gcharset=latin1", $output);
  202. if (count($output) > 0 ) {
  203. print_r("Eror when running graphviz: $output");
  204. die();
  205. }
  207. } else {
  208. die('Bild existiert nicht.');
  209. }
  210. }
  212. if (!file_exists($outfile)) {
  213. die('Graph konnte nicht erstellt werden.');
  214. }
  215. /*
  216. if (!preg_match("/firefox/i",$_SERVER['HTTP_USER_AGENT']))
  217. {
  218. //echo "no firefox";
  219. header( 'Content-disposition: atachment;filename="'.basename($outfile).'"');
  220. }
  221. else
  222. {*/
  223. header( 'filename="'.basename($outfile).'"');
  224. //}
  227. //header( 'Content-disposition: atachment');
  229. //header("Expires: 0");
  230. header("Expires: " + gmdate('D, d M Y H:i:s \G\M\T', time() + 2592000));
  231. header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
  232. header("Cache-Control: private",false);
  233. header("Content-Transfer-Encoding: binary");
  237. header( 'Content-Length: ' . filesize( $outfile ) );
  238. header( 'Connection: close');
  239. $imageFormat = $format;
  240. if ($imageFormat == "svg") {
  241. $imageFormat = "svg+xml";
  242. }
  243. header( 'Content-Type: image/'.$imageFormat);
  246. readfile($outfile);
  248. }
  250. /*
  251. $text = "
  252. inWarcraft
  253. Esport
  254. News
  255. Coverage
  256. Szene-Forum
  257. Replays
  258. Downloads
  259. Forum
  260. Audiocomments
  261. Downloads
  262. Forum
  264. Movies
  265. Downloads
  266. Tutorials (im Forum)
  267. Forum
  270. Das Spiel
  271. WarCraft I
  272. WarCraft II
  273. WC3 alpha/beta
  274. Reign of Chaos
  275. The Frozen Throne
  276. Strategien
  277. Orc
  278. Human
  279. Nightelf
  280. Undead
  281. Walkthrough
  284. Dota
  285. Heros
  286. Items
  287. Map-Download
  288. Replays
  289. Audiocomments
  291. Maps
  292. News
  293. Tutorials
  294. Map-Datenbank
  298. Downloads
  299. Audiocomments
  300. Movies
  301. Tools
  302. Replays
  303. Maps
  305. ";*/
  307. /*
  308. $id = uniqid();
  309. $filename = "svgtemp/$id.dot";
  310. $outfile = "svgtemp/$id.png";
  312. $graph = makeGraph($text);
  314. //echo $graph;
  315. //die();
  317. $fh = fopen($filename, 'w');
  318. fwrite($fh, $graph);
  319. fclose($fh);
  321. $output = array();
  322. exec("fdp -Tpng $filename -o $outfile", &$output);
  324. if (count($output) > 0 ) {
  325. print_r($output);
  326. die();
  327. }
  328. */
  330. ?>

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