plugins/repo.php

   1 <?php
   2 $URL_HANDLERS["*"] = "GLCASRepo";
   3
   4
   5 class GLCASRepo {
   6         function __construct($config)
   7         {
   8                 $this->config = $config;
   9                 if($this->config->getConfigVar("storagelocation") == false) {
  10                         global $WEB_ROOT_FS;
  11                         $storloc = "$WEB_ROOT_FS/../var/glcas/cache/";
  12                         if(!file_exists($storloc)) mkdir($storloc);
  13                         $this->config->setConfigVar("storagelocation", realpath($storloc));
  14                         $this->config->saveConfig();
  15                         error_log("set storage location, $storloc");
  16                 }
  17         }
  18
  19         function go($url)
  20         {
  21                 error_log("repo:go called");
  22
  23                 // figure out what we're doing
  24                 switch($url) {
  25                         case "list":
  26                                 GLCASpageBuilder($this, "body");
  27                                 break;
  28                         default:
  29                                 $this->getRepoForUrl($url);
  30                 }
  31         }
  32
  33         function body($url)
  34         {
  35                 // this is how this will work
  36                 //$this->decodeUrl();
  37                 if(strncasecmp("list", $url, 4)==0) {
  38                         echo "i am the repo list";
  39                         return;
  40                 }
  41                 echo "i am the repo, $url";
  42         }
  43
  44
  45         // TODO: rework this function
  46         /*
  47         * What i need to do is have a downloader function
  48         * that can cope with lots of different shit
  49         * but thats a pipe dream
  50         *
  51         * what *THIS* function needs to do is
  52         * 1) figure out the repo
  53         * 2) figure out the file in the repo
  54         * 2.1) if its a directory, go to print directory
  55         * 3) if the file exists, give it to the user (if a range is specified give the user the range)
  56         * 4) if the file does not exist
  57         *    - check if a tmp file exists
  58         *    - attempt to get an exclusive flock
  59         *    - if flock fails, donwload in progress
  60         *    - if flock succeeds, truncate file and re-start download
  61         *    - if a range request was made, send the range once available
  62         *    - if range not available, sleep for 5 and check again.
  63         *
  64         * I dont want to code this from scratch, but i probably need to
  65         */
  66         function getRepoForUrl($url)
  67         {
  68                 $xurl = split("[/,]", $url);
  69
  70                 // first get the config
  71                 $uconf = unserialize($this->config->getConfigVar("repodata"));
  72                 $repostore = $this->config->getConfigVar("storagelocation");
  73
  74                 // preset matched to -1
  75                 $matched = -1;
  76
  77                 // first we check for /repo/repoid as a url
  78                 $startat = 0;
  79                 if($xurl[0] == "repo") {
  80                         $repid = $xurl[1];
  81                         error_log("trying to get repo for repoid, $repid");
  82                         if(isset($uconf[$repid])) {
  83                                 $matched = ((int)($repid));
  84                                 error_log("set matched, $matched, $repid");
  85                                 $startat +=2;
  86                         }
  87                 }
  88
  89                 // now check for a prefix match
  90                 $prematch = false;
  91                 if($matched < 0) foreach($uconf as $key => $var) {
  92                         $pre = $var["prefix"];
  93
  94                         if($pre!="") {
  95                                 //echo "Checking pre $pre against ".$xurl[0]."\n";
  96                                 if(strcasecmp($pre, $xurl[0])==0) {
  97                                         //echo "Matched pre\n";
  98                                         $prematch = true;
  99                                         $startat++;
 100                                 }
 101                         }
 102                 }
 103
 104                 // next, check for a short url match
 105                 if($matched < 0) foreach($uconf as $key => $var) {
 106                         // if we matched a pre, then we check against the second url component
 107
 108                         $short = $var["shorturl"];
 109
 110                         if($short!="") {
 111                                 //echo "Checking short $short against ".$xurl[$startat]."\n";
 112                                 if(strcasecmp($xurl[$startat], $short)==0) {
 113                                         //echo "Matched\n";
 114                                         $matched = $key;
 115                                         $startat++;
 116                                 }
 117                         }
 118                 }
 119
 120                 // TODO: this deterministic bit
 121                 // so far nothing has matched - what this next bit needs to do is try and "Determine" a repo from url
 122                 // for eg, if a user gets /fedora/x86_64/os we need to return something appropriate
 123                 if($matched < 0) {
 124                         echo "No such repo<br>";
 125                         header("HTTP/1.0 404 Not Found");
 126                         return;
 127                 }
 128
 129
 130                 // something was matched, so now we reconstruct the file component of the url
 131                 $file = "/";
 132                 if(count($xurl) > $startat) for($i=$startat; $i < count($xurl); $i++) {
 133                         $file .= "/".$xurl[$i];
 134                 }
 135
 136                 // so, the ultimate url for the file we need is:
 137                 $actualfile = "$repostore/$matched/$file";
 138                 error_log("Atcualfile is $actualfile");
 139
 140                 // if its a directory, lets do a print
 141                 if(is_dir($actualfile)) {
 142                         $this->printDir($actualfile, $file, $url);
 143                         return;
 144                 }
 145
 146                 // check if the file exists and serve it up
 147                 if(file_exists($actualfile) && !file_exists("$actualfile.size")) {
 148                         $this->serveUpFile($actualfile, $matched);
 149                         return;
 150                 } else {
 151                         // the file does not exist, we now need to go into "download" mode
 152                         $remoteurl = $uconf[$matched]["url"]."/$file";
 153                         $this->downloadAndServe($actualfile, $matched, $remoteurl);
 154                         return;
 155                 }
 156         }
 157
 158         function serveUpFile($actualfile, $repoid)
 159         {
 160                 $uconf = unserialize($this->config->getConfigVar("repodata"));
 161                 $repostore = $this->config->getConfigVar("storagelocation");
 162
 163                 // figure out the range header garbage that centos/redhat send
 164                 if(isset($_SERVER["HTTP_RANGE"])) {
 165                         // we're using ranges - screw you stupid installer
 166                         $pr_range = preg_split("/[:\-=, ]+/", $_SERVER["HTTP_RANGE"]);
 167
 168                         // cut up ranges
 169                         $rangestart = $pr_range[1];
 170                         $rangelength = $pr_range[2] - $pr_range[1] +1;
 171                         $rangestr = $pr_range[1]."-".$pr_range[2];
 172                         error_log("going ranges at $rangestart, $rangelength,".$rangesa[1].",".$rangesb[0]);
 173
 174                         // now spit some headers
 175                         header("HTTP/1.1 206 Partial Content");
 176                         header("Content-Length: ".$rangelength);
 177
 178
 179                         header("Content-Range: bytes $rangestr/".filesize($actualfile));
 180
 181                         // determine mime type
 182                         $type = mime_content_type($actualfile);
 183
 184                         // set mime type header
 185                         header("Content-type: $type");
 186
 187                         // open the local file (TODO: error check)
 188                         $localfile = fopen($actualfile, "r");
 189                         fseek($localfile, $rangestart, SEEK_SET);
 190
 191                         // read in the data, god i hope its not big
 192                         $data = fread($localfile, $rangelength);
 193
 194                         // lastly, send data
 195                         echo $data;
 196                         flush();
 197
 198                         // and close the file
 199                         fclose($localfile);
 200                         return;
 201                 } else {
 202
 203                         // we're not using range's - good on you installer thingy
 204                         header("Content-Length: ".filesize($actualfile));
 205
 206                         // set the mime type header
 207                         $type = mime_content_type($actualfile);
 208                         header("Content-type: $type");
 209
 210                         // open the local file
 211                         $localfile = fopen($actualfile, "r");
 212                         if(!$localfile) {
 213                                 error_log("normal upload went barf");
 214                                 return;
 215                         }
 216
 217                         // iterate over its length, send 8k at a time
 218                         while(!feof($localfile)) {
 219                                 // read and send data
 220                                 $data = fread($localfile, 32768);
 221                                 echo $data;
 222
 223                                 // flush so the client sees the data
 224                                 flush();
 225                         }
 226
 227                         // close the file
 228                         fclose($localfile);
 229                         return;
 230                 }
 231         }
 232
 233         // TODO: this is the function im working on
 234         // the alternative to this function is that if a file is in the process of being
 235         // downloaded, we simply serve from upstream... not a good idea tho unless we create
 236         // a local proxy right here - this function is a race condition waiting to be had
 237         // lets hope its a good one!
 238         function downloadAndServe($filename, $repoid, $remoteurl)
 239         {
 240
 241                 $this->startDownload($filename, $remoteurl);
 242
 243                 // give the proc a minute to get going
 244                 sleep(2);
 245                 clearstatcache();
 246
 247                 // get the configurations we need
 248                 $uconf = unserialize($this->config->getConfigVar("repodata"));
 249                 $repostore = $this->config->getConfigVar("storagelocation");
 250
 251
 252
 253                 // determine if we're ranged
 254                 $ranged = false;
 255                 $rangestart = 0;
 256                 $rangelength = 0;
 257                 $rangestr="";
 258                 if(isset($_SERVER["HTTP_RANGE"])) {
 259                         // we're using ranges - screw you stupid installer
 260
 261                         $pr_range = preg_split("/[:\-=, ]+/", $_SERVER["HTTP_RANGE"]);
 262                         error_log("got range ".$_SERVER["HTTP_RANGE"]." and ".print_r($pr_range, true));
 263
 264                         // cut up ranges
 265                         $rangestart = $pr_range[1];
 266                         $rangelength = $pr_range[2] - $pr_range[1] +1;
 267                         $rangestr = $pr_range[1]."-".$pr_range[2];
 268                         error_log("going ranges at $rangestart, $rangelength, $rangestr");
 269                         $ranged = true;
 270                 }
 271
 272                 // open the local files
 273
 274                 // now, lets determine what state we're in
 275                 // we're either - getting and sending
 276                 // watching and sending
 277                 // or a range (Getting and sending)
 278                 // or a range (watching and sending)
 279                 // TODO: it may be advicable to start the download as a seperate cli process rather then something goin on here
 280                 // so it definitely cant be interrupted.
 281
 282
 283
 284                 // first, getting and sending - this is easy.
 285                 if (!$ranged) {
 286
 287                         $localfile = fopen($filename, "r");
 288
 289                         // this is where the fun starts - but this one isnt too bad.
 290                         error_log("OTHERDOWNLOAD: im another downloader, please work");
 291                         if(file_exists("$filename.size")) $fsize = file_get_contents("$filename.size");
 292                         else $fsize = filesize($filename);
 293                         header("Content-Length: $fsize");
 294                         $sgotten = 0;
 295                         while(!feof($localfile)) {
 296                                 $data = fread($localfile, 2048);
 297                                 if(!$data) {
 298                                         error_log("dollardata is pair shaped");
 299                                 } else {
 300                                         $sgotten += strlen($data);
 301                                         if($sgotten > $fsize) {
 302                                                 error_log("went plop at sgotten, $sgotten, $fsize");
 303                                                 return;
 304                                         }
 305                                         echo $data;
 306                                         flush();
 307                                 }
 308                         }
 309                         fclose($localfile);
 310
 311                         // need to think about this in pseudo code.
 312                         // 1. close the file and wait for it to get to $sgotten + 2048 or $fsize
 313                         $cursize = filesize($filename);
 314
 315                         $upload_finished = false;
 316                         while(!$upload_finished) {
 317                                 while($cursize < $fsize && $cursize < ($sgotten+2048)) {
 318                                         clearstatcache();
 319                                         error_log("OTHERDOWNLOAD: halt, $cursize, $sgotten, $fsize");
 320                                         // sleep until the the filesize is greater then what we're up to, or until the file is finished
 321                                         sleep(1);
 322                                         $cursize = filesize($filename);
 323                                 }
 324
 325                                 error_log("OTHERDOWNLOAD: continue, $sgotten, $fsize");
 326                                 // reopen local file - if it stopped existing, we need to deal with that
 327                                 $localfile = fopen($filename, "r");
 328
 329                                 // UG, we need to ff, how could i forget that
 330                                 fseek($localfile, $sgotten);
 331
 332                                 if(!$localfile) {
 333                                         error_log("OTHERDOWNLOAD: something went plop");
 334                                         return;
 335                                 }
 336
 337                                 // now loop on the file until we have it at an eof
 338                                 while(!feof($localfile)) {
 339                                         $data = fread($localfile, 512);
 340                                         if(!$data) {
 341                                                 error_log("OTHERDOWNLOAD: dollar data went plop");
 342                                         } else {
 343                                                 $sgotten += strlen($data);
 344                                                 echo $data;
 345                                                 flush();
 346                                         }
 347                                 }
 348                                 fclose($localfile);
 349
 350                                 if($sgotten >= $fsize) {
 351                                         if($sgotten > $fsize) error_log("OTHERDOWNLOADER: finished but $sgotten, $fsize doesnt make senze");
 352                                         $upload_finished = true;
 353                                 }
 354                                 // and we're done
 355
 356                         }
 357                         error_log("OTHERDOWNLOADER: done with");
 358
 359                         return;
 360
 361
 362
 363
 364                         // Next painful bit
 365                 } else {
 366                         // and here too, yay, someone else is doing the
 367                         // download, but we're the retards getting a range
 368                         $sgotten = 0;
 369
 370                         $sgatlen = $rangestart+$rangelength;
 371
 372                         // the problem is here
 373                         error_log("Downloader: going ranged as other");
 374                         clearstatcache();
 375                         if(file_exists($filename.".tmp.data.deleteme.size")) $contentlen = file_get_contents($filename.".tmp.data.deleteme.size");
 376                         else $contentlen = filesize($filename);
 377                         $contenttype = mime_content_type($filename);
 378                         header("HTTP/1.1 206 Partial Content");
 379                         header("Content-Length: $rangelength");
 380                         header("Content-Range: bytes $rangestr/$contentlen");
 381                         $contenttype = "Content-Type: application/x-rpm";
 382
 383                         error_log("$contenttype");
 384                         header("$contenttype");
 385
 386
 387                         clearstatcache();
 388
 389
 390                         // first we wait until the file reaches $rangestart
 391                         while(filesize("$filename") < $rangestart) {
 392                                 sleep(1);
 393                         }
 394
 395                         // then we open the file and ff to rangestart
 396                         $localfile = fopen($filename, "r");
 397                         fseek($localfile, $rangestart);
 398
 399                         $sgotten = 0;
 400                         // need to think about this in pseudo code.
 401                         // 1. close the file and wait for it to get to $sgotten + 2048 or $fsize
 402                         $cursize = filesize($filename);
 403
 404
 405                         $upload_finished = false;
 406                         while(!$upload_finished) {
 407                                 while($cursize < $sgatlen && $cursize < ($sgotten+2048)) {
 408                                         clearstatcache();
 409                                         error_log("OTHERDOWNLOAD: halt, $cursize, $sgotten, $contentlen");
 410                                         // sleep until the the filesize is greater then what we're up to, or until the file is finished
 411                                         sleep(1);
 412                                         $cursize = filesize($filename);
 413                                 }
 414
 415                                 error_log("OTHERDOWNLOAD: continue, $sgotten, $contentlen");
 416                                 // reopen local file - if it stopped existing, we need to deal with that
 417                                 $localfile = fopen($filename, "r");
 418
 419                                 // UG, we need to ff, how could i forget that
 420                                 fseek($localfile, $sgotten+$rangestart);
 421
 422                                 if(!$localfile) {
 423                                         error_log("OTHERDOWNLOAD: something went plop");
 424                                         return;
 425                                 }
 426
 427                                 // now loop on the file until we have it at sgatlen
 428                                 while(!feof($localfile) && $sgotten < $rangelength) {
 429                                         $left = $rangelength - $sgotten;
 430                                         if($left > 512) $lenget = 512;
 431                                         else $lenget = $left;
 432                                         $data = fread($localfile, $lenget);
 433                                         if(!$data) {
 434                                                 error_log("OTHERDOWNLOAD: dollar data went plop");
 435                                         } else {
 436                                                 $sgotten += strlen($data);
 437                                                 echo $data;
 438                                                 flush();
 439                                         }
 440                                 }
 441                                 fclose($localfile);
 442
 443                                 if($sgotten >= $rangelength) {
 444                                         if($sgotten > $rangelength) error_log("OTHERDOWNLOADER: finished but $sgotten, $fsize doesnt make senze");
 445                                         $upload_finished = true;
 446                                 }
 447                                 // and we're done
 448
 449                         }
 450                         error_log("OTHERDOWNLOADER: done with");
 451
 452                         return;
 453
 454                 }
 455
 456
 457                 return;
 458         }
 459
 460         function startDownload($file, $url)
 461         {
 462
 463                 error_log("background downloader, start");
 464                 global $WEB_ROOT_FS, $URL_HANDLERS, $BASE_URL;
 465                 if(file_exists("$WEB_ROOT_FS/../bin/downloadfile.php")) {
 466                         $scall = "/usr/bin/php $WEB_ROOT_FS/../bin/downloadfile.php '$url' '$file' > /dev/null 2>&1 &";
 467                         system($scall);
 468                 } else {
 469                         error_log("cant find download helper... dieing");
 470                 }
 471         }
 472
 473         // this is a nightmare
 474         function getRepoForUrlOld($url)
 475         {
 476                 // the way we breakdown a url is to explode it
 477                 $xurl = split("[/,]", $url);
 478
 479                 // we first check if [0] is a prefix
 480                 // if now, we check for it being a shorturl (lets just do that for now)
 481                 $uconf = unserialize($this->config->getConfigVar("repodata"));
 482                 $repostore = $this->config->getConfigVar("storagelocation");
 483
 484                 $matched = -1;
 485
 486                 // first we check for /repo/repoid as a url
 487                 $startat = 0;
 488                 if($xurl[0] == "repo") {
 489                         $repid = $xurl[1];
 490                         error_log("trying to get repo for repoid, $repid");
 491                         if(isset($uconf[$repid])) {
 492                                 $matched = ((int)($repid));
 493                                 error_log("set matched, $matched, $repid");
 494                                 $startat +=2;
 495                         }
 496                 }
 497
 498
 499                 $prematch = false;
 500                 if($matched < 0) foreach($uconf as $key => $var) {
 501                         $pre = $var["prefix"];
 502
 503                         if($pre!="") {
 504                                 //echo "Checking pre $pre against ".$xurl[0]."\n";
 505                                 if(strcasecmp($pre, $xurl[0])==0) {
 506                                         //echo "Matched pre\n";
 507                                         $prematch = true;
 508                                         $startat++;
 509                                 }
 510                         }
 511                 }
 512
 513
 514                 if($matched < 0) foreach($uconf as $key => $var) {
 515                         // if we matched a pre, then we check against the second url component
 516
 517                         $short = $var["shorturl"];
 518
 519                         if($short!="") {
 520                                 //echo "Checking short $short against ".$xurl[$startat]."\n";
 521                                 if(strcasecmp($xurl[$startat], $short)==0) {
 522                                         //echo "Matched\n";
 523                                         $matched = $key;
 524                                         $startat++;
 525                                 }
 526                         }
 527                 }
 528
 529                 if($matched < 0) {
 530                         echo "No such repo<br>";
 531                         return;
 532                 }
 533
 534
 535                 // now we find an actual file
 536                 $file = "/";
 537                 if(count($xurl) > $startat) for($i=$startat; $i < count($xurl); $i++) {
 538                         $file .= "/".$xurl[$i];
 539                 }
 540
 541                 // now we want to find repostore/$matched/$file;
 542                 $actualfile = "$repostore/$matched/$file";
 543                 error_log("Atcualfile is $actualfile");
 544                 //echo "Start file for $actualfile\n";
 545
 546                 // first check any directories in $file are in existence
 547                 $splfile = explode("/", $file);
 548                 if(count($splfile) > 1) {
 549                         $tomake = "$repostore/$matched/";
 550                         for($i = 0; $i < count($splfile)-1; $i++) {
 551                                 $tomake .= "/".$splfile[$i];
 552                                 //error_log("making directory $tomake");
 553                                 if(!is_dir($tomake)) mkdir($tomake);
 554                         }
 555                 }
 556
 557                 $reqhead = print_r($_REQUEST, true);
 558                 $sevhead = print_r($_SERVER, true);
 559
 560                 error_log("req $reqhead");
 561                 error_log("sev $sevhead");
 562
 563                 $rangestart = -1;
 564                 $rangelength = -1;
 565                 $rangesstr = "";
 566                 if(isset($_SERVER["HTTP_RANGE"])) {
 567                         // oh shit
 568                         $rangesa = explode("=", $_SERVER["HTTP_RANGE"]);
 569                         $rangesb = explode(",", $rangesa[1]);
 570                         $rangesstr = $rangesb[0];
 571                         $ranges = explode("-", $rangesb[0]);
 572                         $rangestart = $ranges[0];
 573                         $rangelength = $ranges[1] - $ranges[0] +1;
 574                         error_log("going ranges at $rangestart, $rangelength,".$rangesa[1].",".$rangesb[0]);
 575                 }
 576
 577                 // i have to support http_range cause REDHAT/CENTOS IS annoying as all hell. christ, why do this?
 578                 if(is_file($actualfile)) {
 579                         // file is stored locally, away we go
 580                         if($rangelength != -1) {
 581                                 header("HTTP/1.1 206 Partial Content");
 582                                 header("Content-Length: ".$rangelength);
 583                                 header("Content-Range: bytes $rangesstr/".filesize($actualfile));
 584                                 //header("Content-Length: ".filesize($actualfile));
 585                         } else {
 586                                 header("Content-Length: ".filesize($actualfile));
 587                         }
 588                         $type = mime_content_type($actualfile);
 589                         header("Content-type: $type");
 590                         $localfile = fopen($actualfile, "r");
 591                         if($rangestart!=-1) fseek($localfile, $rangestart, SEEK_SET);
 592                         while(!feof($localfile)) {
 593                                 // cant make this high cause centos is crap
 594                                 if($rangelength!=-1) {
 595                                         $data = fread($localfile, $rangelength);
 596                                         error_log("data size was ".strlen($data));
 597                                 } else {
 598                                         $data = fread($localfile, 2048);
 599                                 }
 600
 601                                 echo $data;
 602                                 flush();
 603
 604                                 if($rangelength!=-1) {
 605                                         fclose($localfile);
 606                                         exit(0);
 607                                 }
 608                         }
 609                         fclose($localfile);
 610                 } else if(is_dir($actualfile)) {
 611                         //echo "in dir for $actualfile\n";
 612                         // here we print the contents of the directory
 613                         $this->printDir($actualfile, $file, $url);
 614                 } else {
 615                         // ok, get the file
 616                         //echo "in getcheck\n";
 617                         $remotefile = $uconf[$matched]["url"]."/$file";
 618
 619                         // TODO: i should get remote contents with fopen/fread/fwrite as
 620                         // it should be more memory conservative and we can push to the end client
 621                         // straight away
 622                         ignore_user_abort(true);
 623                         $rf = fopen($remotefile, "r");
 624                         error_log("attempting to get remote file $remotefile");
 625
 626
 627                         // hopefully this works. if we get a 30x message, it means we tried to get a directory
 628                         // i cant think of another way of dealing with it - but this is UGLY
 629                         // also get content length and content type
 630                         $clen = 0;
 631                         foreach($http_response_header as $key => $val) {
 632                                 if(preg_match("/HTTP.*30[1-9].*/", $val)) {
 633                                         error_log("got a 30x, must be a directory");
 634                                         mkdir($actualfile);
 635                                         header("Location: ".$_SERVER["REQUEST_URI"]."/");
 636                                         return;
 637                                 }
 638                                 // get content length form upstream and print
 639                                 if(preg_match("/^Content-Length:.*/", $val)) {
 640                                         $clen = $val;
 641                                         header($val);
 642                                 }
 643                                 // get content type from upstream and print
 644                                 if(preg_match("/^Content-Type:.*/", $val)) {
 645                                         header($val);
 646                                 }
 647                         }
 648                         //error_log("repsonse: $http_response_header");
 649                         if(!$rf) {
 650                                 // return 404
 651                                 header("HTTP/1.0 404 Not Found");
 652                         } else {
 653                                 $localfile = fopen($actualfile.".tmp.data.deleteme", "w");
 654                                 $localsizefile = fopen($actualfile.".tmp.data.deleteme.size", "w");
 655                                 fwrite($localsizefile, "$clen");
 656                                 fclose($localsizefile);
 657                                 while(!feof($rf)) {
 658                                         $data = fread($rf, 8192);
 659                                         echo $data;
 660                                         fwrite($localfile, $data);
 661                                         flush();
 662                                 }
 663                                 fclose($localfile);
 664                                 fclose($rf);
 665                                 rename($actualfile.".tmp.data.deleteme", $actualfile);
 666                                 //error_log("got actualfile, tried to save as $actualfile, did it work?");
 667                         }
 668                 }
 669
 670                 //echo "got ".$file." for $url which is $actualfile\n";
 671
 672                 //echo "</html></pre>";
 673         }
 674
 675         function printDir($dir, $localfile, $baseurl)
 676         {
 677                 $localfile = preg_replace("/\/\/+/", "/", $localfile);
 678                 $uri = $_SERVER["REQUEST_URI"];
 679                 $content = "";
 680                 if(is_dir($dir)) {
 681                         $content .= "<html><head><title>Index of $localfile</title></head><body><h1>Index of $localfile</h1>";
 682                         $content .= "<table>";
 683                         $dh = opendir($dir);
 684                         while(($file = readdir($dh))!==false) {
 685                                 if($file != "." && $file != "..") $content .= "<tr><td><a href=\"$uri/$file\">$file</a></td></tr>";
 686                         }
 687                         $content .= "</table></body></html>";
 688
 689                         GLCASpageBuilder(null, null, $content);
 690
 691                 } else return false;
 692         }
 693
 694         function getRepoDetailsYum($url, $ismirrorlist=false)
 695         {
 696                 $actionurl = $url."/repodata/repomd.xml";
 697
 698                 error_log("Getting for action of $actionurl");
 699
 700                 $ld = file_get_contents($actionurl);
 701
 702                 // so here we try and get what this repository provides (os, version, arch), for yum this
 703                 // should come straight off the url... i.e. centos/6.0/os/x86_64/ (centos, 6.0, base os, 64bit arch)
 704
 705                 if(!$ld) return false;
 706
 707                 // ok, now we tokenize the url and try and guess at the content
 708                 $spurl = explode("/", $url);
 709
 710                 // first, find the OS
 711                 $kos = getKnownOSList();
 712                 $glt["OS"] = "unknown";
 713                 $glt["verison"] = "unknown";
 714                 $glt["arch"] = "unknown";
 715                 $glt["other"] = "unknown";
 716                 foreach($spurl as $comp) {
 717
 718                         // find a name
 719                         foreach($kos["os"]["short"] as $kosname => $koslong) {
 720                                 //error_log("Comparing $kosname and $koslong with $comp");
 721                                 if(strcasecmp($kosname, $comp) == 0) {
 722                                         //error_log("got $kosname, $koslong for $comp in $url");
 723                                         //echo "<pre>inone\n"; print_r($koslong); echo "</pre>";
 724                                         $glt["OS"] = $koslong;
 725                                 }
 726                         }
 727
 728                         // find a version, we assume its going to be something [numbers] and a . (optional)
 729                         if(preg_match("/^[0-9.]+$/", $comp)>0) {
 730                                 //error_log("version match of $comp");
 731                                 $glt["version"] = $comp;
 732                         }
 733
 734                         // now architecture, this can be either i?86 or x86_64 - can also be arm or otherwise, but lets just go with this for now
 735                         foreach($kos["arch"] as $archinter => $archname ) {
 736                                 //error_log("Comparing $archinter, $archname with $comp");
 737                                 if(strcasecmp($archname, $comp) == 0) {
 738                                         //error_log("arch match of $archname with $comp");
 739                                         $glt["arch"] = $archname;
 740                                 }
 741                         }
 742
 743                         // other is a bt harder, we really have to guess at this one
 744                         if(strcasecmp("os", $comp) == 0) $glt["other"] = "OS";
 745                         if(strcasecmp("update", $comp) == 0) $glt["other"] = "Updates";
 746                         if(strcasecmp("updates", $comp) == 0) $glt["other"] = "Updates";
 747                         if(strcasecmp("everything", $comp) == 0) $glt["other"] = "OS";
 748                 }
 749
 750
 751                 return $glt;
 752         }
 753
 754         function deleteRepo($rkey)
 755         {
 756                 $uconf = $this->config->getConfigVar("repodata");
 757                 $repostore = $this->config->getConfigVar("storagelocation");
 758
 759                 if($uconf !== false) {
 760                         $conf = unserialize($uconf);
 761                         foreach($conf as $key => $vla) {
 762                                 if($key == $rkey) {
 763                                         unset($conf["$rkey"]);
 764                                         $nconf = serialize($conf);
 765                                         system("rm -rf $repostore/$key");
 766                                         error_log("remove repo as $rkey");
 767                                         $this->config->setConfigVar("repodata", $nconf);
 768                                         $this->config->saveConfig();
 769                                 }
 770                         }
 771                 }
 772         }
 773
 774         function addRepo($desc, $os, $version, $arch, $other, $shorturl, $prefix, $repurl, $repotype, $init)
 775         {
 776                 $uconf = $this->config->getConfigVar("repodata");
 777
 778                 $cs["desc"] = $desc;
 779                 $cs["os"] = $os;
 780                 $cs["version"] = $version;
 781                 $cs["arch"] = $arch;
 782                 $cs["other"] = $other;
 783                 $cs["shorturl"] = $shorturl;
 784                 $cs["prefix"] = $prefix;
 785                 $cs["url"] = $repurl;
 786                 $cs["repotype"] = $repotype;
 787
 788
 789                 $ckey = 0;
 790                 if($uconf !== false) {
 791                         $conf = unserialize($uconf);
 792                         foreach($conf as $key => $val) {
 793                                 $ckey = $key;
 794                         }
 795                         $ckey++;
 796                 }
 797
 798                 $conf[$ckey] = $cs;
 799
 800                 $nconf = serialize($conf);
 801
 802                 error_log("add repo as $ckey");
 803                 $this->config->setConfigVar("repodata", $nconf);
 804                 $this->config->saveConfig();
 805
 806                 // now create the base structure in the repo
 807                 $repostore = $this->config->getConfigVar("storagelocation");
 808
 809
 810                 // now call update repo
 811                 if($init) $this->updateRepoYum($ckey);
 812         }
 813
 814         function updateRepo($repokey)
 815         {
 816                 // we only do yum yet
 817                 $this->updateRepoYum($repokey);
 818         }
 819
 820         function updateRepoYum($repokey)
 821         {
 822                 $repostore = $this->config->getConfigVar("storagelocation");
 823
 824                 $repod = $this->getRepo($repokey);
 825
 826                 $repourl = $repod["url"];
 827
 828                 if(!file_exists("$repostore/$repokey")) {
 829                         mkdir("$repostore/$repokey");
 830                 }
 831
 832                 if(!file_exists("$repostore/$repokey/repodata")) {
 833                         mkdir("$repostore/$repokey/repodata");
 834                 }
 835
 836                 //ignore_user_abort(true);
 837                 $actionurl = "$repourl/repodata/repomd.xml";
 838                 $repomdxml = file_get_contents($actionurl);
 839                 file_put_contents("$repostore/$repokey/repodata/repomd.xml", $repomdxml);
 840
 841                 $xml = simplexml_load_file("$repostore/$repokey/repodata/repomd.xml");
 842
 843
 844                 foreach($xml as $key => $var) {
 845                         //echo "for key $key has:\n";
 846                         //print_r($var);
 847                         if($key == "data") {
 848                                 $fileloc = $var->location["href"];
 849                                 if(!file_exists("$repostore/$repokey/$fileloc")) {
 850                                         error_log("getting $fileloc for $repokey on $repourl");
 851                                         $dlfile = file_get_contents("$repourl/$fileloc");
 852                                         file_put_contents("$repostore/$repokey/$fileloc", $dlfile);
 853                                 } else {
 854                                         error_log("Not getting $fileloc because we already have it");
 855                                 }
 856                         }
 857                 }
 858         }
 859
 860         function getRepo($id)
 861         {
 862                 $uconf = $this->config->getConfigVar("repodata");
 863                 if($uconf !== false) {
 864                         $lconf = unserialize($uconf);
 865                         return $lconf[$id];
 866                 } else return false;
 867
 868         }
 869
 870         function getRepos()
 871         {
 872                 $uconf = $this->config->getConfigVar("repodata");
 873                 if($uconf !== false) {
 874                         return unserialize($uconf);
 875                 } else return false;
 876
 877         }
 878
 879         private $config;
 880 }
 881
 882 ?>