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, 8192);
 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
 237         function downloadAndServe($filename, $repoid, $remoteurl)
 238         {
 239
 240                 $this->startDownload($filename, $remoteurl);
 241
 242                 // give the proc a minute to get going
 243                 sleep(2);
 244                 clearstatcache();
 245
 246                 // get the configurations we need
 247                 $uconf = unserialize($this->config->getConfigVar("repodata"));
 248                 $repostore = $this->config->getConfigVar("storagelocation");
 249
 250
 251
 252                 // determine if we're ranged
 253                 $ranged = false;
 254                 $rangestart = 0;
 255                 $rangelength = 0;
 256                 $rangestr="";
 257                 if(isset($_SERVER["HTTP_RANGE"])) {
 258                         // we're using ranges - screw you stupid installer
 259
 260                         $pr_range = preg_split("/[:\-=, ]+/", $_SERVER["HTTP_RANGE"]);
 261                         error_log("got range ".$_SERVER["HTTP_RANGE"]." and ".print_r($pr_range, true));
 262
 263                         // cut up ranges
 264                         $rangestart = $pr_range[1];
 265                         $rangelength = $pr_range[2] - $pr_range[1] +1;
 266                         $rangestr = $pr_range[1]."-".$pr_range[2];
 267                         error_log("going ranges at $rangestart, $rangelength, $rangestr");
 268                         $ranged = true;
 269                 }
 270
 271                 // open the local files
 272
 273                 // now, lets determine what state we're in
 274                 // we're either - getting and sending
 275                 // watching and sending
 276                 // or a range (Getting and sending)
 277                 // or a range (watching and sending)
 278                 // TODO: it may be advicable to start the download as a seperate cli process rather then something goin on here
 279                 // so it definitely cant be interrupted.
 280
 281
 282
 283                 // first, getting and sending - this is easy.
 284                 if (!$ranged) {
 285
 286                         $localfile = fopen($filename, "r");
 287
 288                         // this is where the fun starts - but this one isnt too bad.
 289                         error_log("OTHERDOWNLOAD: im another downloader, please work");
 290                         $fsize = file_get_contents("$filename.size");
 291                         header("Content-Length: $fsize");
 292                         $sgotten = 0;
 293                         while(!feof($localfile)) {
 294                                 $data = fread($localfile, 2048);
 295                                 if(!$data) {
 296                                         error_log("dollardata is pair shaped");
 297                                 } else {
 298                                         $sgotten += strlen($data);
 299                                         if($sgotten > $fsize) {
 300                                                 error_log("went plop at sgotten, $sgotten, $fsize");
 301                                                 return;
 302                                         }
 303                                         echo $data;
 304                                         flush();
 305                                 }
 306                         }
 307                         fclose($localfile);
 308
 309                         // need to think about this in pseudo code.
 310                         // 1. close the file and wait for it to get to $sgotten + 2048 or $fsize
 311                         $cursize = filesize($filename);
 312
 313                         $upload_finished = false;
 314                         while(!$upload_finished) {
 315                                 while($cursize < $fsize && $cursize < ($sgotten+2048)) {
 316                                         clearstatcache();
 317                                         error_log("OTHERDOWNLOAD: halt, $cursize, $sgotten, $fsize");
 318                                         // sleep until the the filesize is greater then what we're up to, or until the file is finished
 319                                         sleep(1);
 320                                         $cursize = filesize($filename);
 321                                 }
 322
 323                                 error_log("OTHERDOWNLOAD: continue, $sgotten, $fsize");
 324                                 // reopen local file - if it stopped existing, we need to deal with that
 325                                 $localfile = fopen($filename, "r");
 326
 327                                 // UG, we need to ff, how could i forget that
 328                                 fseek($localfile, $sgotten);
 329
 330                                 if(!$localfile) {
 331                                         error_log("OTHERDOWNLOAD: something went plop");
 332                                         return;
 333                                 }
 334
 335                                 // now loop on the file until we have it at an eof
 336                                 while(!feof($localfile)) {
 337                                         $data = fread($localfile, 512);
 338                                         if(!$data) {
 339                                                 error_log("OTHERDOWNLOAD: dollar data went plop");
 340                                         } else {
 341                                                 $sgotten += strlen($data);
 342                                                 echo $data;
 343                                                 flush();
 344                                         }
 345                                 }
 346                                 fclose($localfile);
 347
 348                                 if($sgotten >= $fsize) {
 349                                         if($sgotten > $fsize) error_log("OTHERDOWNLOADER: finished but $sgotten, $fsize doesnt make senze");
 350                                         $upload_finished = true;
 351                                 }
 352                                 // and we're done
 353
 354                         }
 355                         error_log("OTHERDOWNLOADER: done with");
 356
 357                         return;
 358
 359
 360
 361
 362                         // Next painful bit
 363                 } else {
 364                         // and here too, yay, someone else is doing the
 365                         // download, but we're the retards getting a range
 366                         $sgotten = 0;
 367
 368                         $sgatlen = $rangestart+$rangelength;
 369
 370                         // the problem is here
 371                         error_log("Downloader: going ranged as other");
 372                         clearstatcache();
 373                         if(file_exists($filename.".tmp.data.deleteme.size")) $contentlen = file_get_contents($filename.".tmp.data.deleteme.size");
 374                         else $contentlen = filesize($filename);
 375                         $contenttype = mime_content_type($filename);
 376                         header("HTTP/1.1 206 Partial Content");
 377                         header("Content-Length: $rangelength");
 378                         header("Content-Range: bytes $rangestr/$contentlen");
 379                         $contenttype = "Content-Type: application/x-rpm";
 380
 381                         error_log("$contenttype");
 382                         header("$contenttype");
 383
 384
 385                         clearstatcache();
 386
 387
 388                         // first we wait until the file reaches $rangestart
 389                         while(filesize("$filename") < $rangestart) {
 390                                 sleep(1);
 391                         }
 392
 393                         // then we open the file and ff to rangestart
 394                         $localfile = fopen($filename, "r");
 395                         fseek($localfile, $rangestart);
 396
 397                         $sgotten = 0;
 398                         // need to think about this in pseudo code.
 399                         // 1. close the file and wait for it to get to $sgotten + 2048 or $fsize
 400                         $cursize = filesize($filename);
 401
 402
 403                         $upload_finished = false;
 404                         while(!$upload_finished) {
 405                                 while($cursize < $sgatlen && $cursize < ($sgotten+2048)) {
 406                                         clearstatcache();
 407                                         error_log("OTHERDOWNLOAD: halt, $cursize, $sgotten, $contentlen");
 408                                         // sleep until the the filesize is greater then what we're up to, or until the file is finished
 409                                         sleep(1);
 410                                         $cursize = filesize($filename);
 411                                 }
 412
 413                                 error_log("OTHERDOWNLOAD: continue, $sgotten, $contentlen");
 414                                 // reopen local file - if it stopped existing, we need to deal with that
 415                                 $localfile = fopen($filename, "r");
 416
 417                                 // UG, we need to ff, how could i forget that
 418                                 fseek($localfile, $sgotten+$rangestart);
 419
 420                                 if(!$localfile) {
 421                                         error_log("OTHERDOWNLOAD: something went plop");
 422                                         return;
 423                                 }
 424
 425                                 // now loop on the file until we have it at sgatlen
 426                                 while(!feof($localfile) && $sgotten < $rangelength) {
 427                                         $left = $rangelength - $sgotten;
 428                                         if($left > 512) $lenget = 512;
 429                                         else $lenget = $left;
 430                                         $data = fread($localfile, $lenget);
 431                                         if(!$data) {
 432                                                 error_log("OTHERDOWNLOAD: dollar data went plop");
 433                                         } else {
 434                                                 $sgotten += strlen($data);
 435                                                 echo $data;
 436                                                 flush();
 437                                         }
 438                                 }
 439                                 fclose($localfile);
 440
 441                                 if($sgotten >= $rangelength) {
 442                                         if($sgotten > $rangelength) error_log("OTHERDOWNLOADER: finished but $sgotten, $fsize doesnt make senze");
 443                                         $upload_finished = true;
 444                                 }
 445                                 // and we're done
 446
 447                         }
 448                         error_log("OTHERDOWNLOADER: done with");
 449
 450                         return;
 451
 452                 }
 453
 454
 455                 return;
 456         }
 457
 458         function startDownload($file, $url)
 459         {
 460
 461                 error_log("background downloader, start");
 462                 global $WEB_ROOT_FS, $URL_HANDLERS, $BASE_URL;
 463                 if(file_exists("$WEB_ROOT_FS/../bin/downloadfile.php")) {
 464                         $scall = "/usr/bin/php $WEB_ROOT_FS/../bin/downloadfile.php '$url' '$file' > /dev/null 2>&1 &";
 465                         system($scall);
 466                 } else {
 467                         error_log("cant find download helper... dieing");
 468                 }
 469         }
 470
 471         // this is a nightmare
 472         function getRepoForUrlOld($url)
 473         {
 474                 // the way we breakdown a url is to explode it
 475                 $xurl = split("[/,]", $url);
 476
 477                 // we first check if [0] is a prefix
 478                 // if now, we check for it being a shorturl (lets just do that for now)
 479                 $uconf = unserialize($this->config->getConfigVar("repodata"));
 480                 $repostore = $this->config->getConfigVar("storagelocation");
 481
 482                 $matched = -1;
 483
 484                 // first we check for /repo/repoid as a url
 485                 $startat = 0;
 486                 if($xurl[0] == "repo") {
 487                         $repid = $xurl[1];
 488                         error_log("trying to get repo for repoid, $repid");
 489                         if(isset($uconf[$repid])) {
 490                                 $matched = ((int)($repid));
 491                                 error_log("set matched, $matched, $repid");
 492                                 $startat +=2;
 493                         }
 494                 }
 495
 496
 497                 $prematch = false;
 498                 if($matched < 0) foreach($uconf as $key => $var) {
 499                         $pre = $var["prefix"];
 500
 501                         if($pre!="") {
 502                                 //echo "Checking pre $pre against ".$xurl[0]."\n";
 503                                 if(strcasecmp($pre, $xurl[0])==0) {
 504                                         //echo "Matched pre\n";
 505                                         $prematch = true;
 506                                         $startat++;
 507                                 }
 508                         }
 509                 }
 510
 511
 512                 if($matched < 0) foreach($uconf as $key => $var) {
 513                         // if we matched a pre, then we check against the second url component
 514
 515                         $short = $var["shorturl"];
 516
 517                         if($short!="") {
 518                                 //echo "Checking short $short against ".$xurl[$startat]."\n";
 519                                 if(strcasecmp($xurl[$startat], $short)==0) {
 520                                         //echo "Matched\n";
 521                                         $matched = $key;
 522                                         $startat++;
 523                                 }
 524                         }
 525                 }
 526
 527                 if($matched < 0) {
 528                         echo "No such repo<br>";
 529                         return;
 530                 }
 531
 532
 533                 // now we find an actual file
 534                 $file = "/";
 535                 if(count($xurl) > $startat) for($i=$startat; $i < count($xurl); $i++) {
 536                         $file .= "/".$xurl[$i];
 537                 }
 538
 539                 // now we want to find repostore/$matched/$file;
 540                 $actualfile = "$repostore/$matched/$file";
 541                 error_log("Atcualfile is $actualfile");
 542                 //echo "Start file for $actualfile\n";
 543
 544                 // first check any directories in $file are in existence
 545                 $splfile = explode("/", $file);
 546                 if(count($splfile) > 1) {
 547                         $tomake = "$repostore/$matched/";
 548                         for($i = 0; $i < count($splfile)-1; $i++) {
 549                                 $tomake .= "/".$splfile[$i];
 550                                 //error_log("making directory $tomake");
 551                                 if(!is_dir($tomake)) mkdir($tomake);
 552                         }
 553                 }
 554
 555                 $reqhead = print_r($_REQUEST, true);
 556                 $sevhead = print_r($_SERVER, true);
 557
 558                 error_log("req $reqhead");
 559                 error_log("sev $sevhead");
 560
 561                 $rangestart = -1;
 562                 $rangelength = -1;
 563                 $rangesstr = "";
 564                 if(isset($_SERVER["HTTP_RANGE"])) {
 565                         // oh shit
 566                         $rangesa = explode("=", $_SERVER["HTTP_RANGE"]);
 567                         $rangesb = explode(",", $rangesa[1]);
 568                         $rangesstr = $rangesb[0];
 569                         $ranges = explode("-", $rangesb[0]);
 570                         $rangestart = $ranges[0];
 571                         $rangelength = $ranges[1] - $ranges[0] +1;
 572                         error_log("going ranges at $rangestart, $rangelength,".$rangesa[1].",".$rangesb[0]);
 573                 }
 574
 575                 // i have to support http_range cause REDHAT/CENTOS IS annoying as all hell. christ, why do this?
 576                 if(is_file($actualfile)) {
 577                         // file is stored locally, away we go
 578                         if($rangelength != -1) {
 579                                 header("HTTP/1.1 206 Partial Content");
 580                                 header("Content-Length: ".$rangelength);
 581                                 header("Content-Range: bytes $rangesstr/".filesize($actualfile));
 582                                 //header("Content-Length: ".filesize($actualfile));
 583                         } else {
 584                                 header("Content-Length: ".filesize($actualfile));
 585                         }
 586                         $type = mime_content_type($actualfile);
 587                         header("Content-type: $type");
 588                         $localfile = fopen($actualfile, "r");
 589                         if($rangestart!=-1) fseek($localfile, $rangestart, SEEK_SET);
 590                         while(!feof($localfile)) {
 591                                 // cant make this high cause centos is crap
 592                                 if($rangelength!=-1) {
 593                                         $data = fread($localfile, $rangelength);
 594                                         error_log("data size was ".strlen($data));
 595                                 } else {
 596                                         $data = fread($localfile, 2048);
 597                                 }
 598
 599                                 echo $data;
 600                                 flush();
 601
 602                                 if($rangelength!=-1) {
 603                                         fclose($localfile);
 604                                         exit(0);
 605                                 }
 606                         }
 607                         fclose($localfile);
 608                 } else if(is_dir($actualfile)) {
 609                         //echo "in dir for $actualfile\n";
 610                         // here we print the contents of the directory
 611                         $this->printDir($actualfile, $file, $url);
 612                 } else {
 613                         // ok, get the file
 614                         //echo "in getcheck\n";
 615                         $remotefile = $uconf[$matched]["url"]."/$file";
 616
 617                         // TODO: i should get remote contents with fopen/fread/fwrite as
 618                         // it should be more memory conservative and we can push to the end client
 619                         // straight away
 620                         ignore_user_abort(true);
 621                         $rf = fopen($remotefile, "r");
 622                         error_log("attempting to get remote file $remotefile");
 623
 624
 625                         // hopefully this works. if we get a 30x message, it means we tried to get a directory
 626                         // i cant think of another way of dealing with it - but this is UGLY
 627                         // also get content length and content type
 628                         $clen = 0;
 629                         foreach($http_response_header as $key => $val) {
 630                                 if(preg_match("/HTTP.*30[1-9].*/", $val)) {
 631                                         error_log("got a 30x, must be a directory");
 632                                         mkdir($actualfile);
 633                                         header("Location: ".$_SERVER["REQUEST_URI"]."/");
 634                                         return;
 635                                 }
 636                                 // get content length form upstream and print
 637                                 if(preg_match("/^Content-Length:.*/", $val)) {
 638                                         $clen = $val;
 639                                         header($val);
 640                                 }
 641                                 // get content type from upstream and print
 642                                 if(preg_match("/^Content-Type:.*/", $val)) {
 643                                         header($val);
 644                                 }
 645                         }
 646                         //error_log("repsonse: $http_response_header");
 647                         if(!$rf) {
 648                                 // return 404
 649                                 header("HTTP/1.0 404 Not Found");
 650                         } else {
 651                                 $localfile = fopen($actualfile.".tmp.data.deleteme", "w");
 652                                 $localsizefile = fopen($actualfile.".tmp.data.deleteme.size", "w");
 653                                 fwrite($localsizefile, "$clen");
 654                                 fclose($localsizefile);
 655                                 while(!feof($rf)) {
 656                                         $data = fread($rf, 8192);
 657                                         echo $data;
 658                                         fwrite($localfile, $data);
 659                                         flush();
 660                                 }
 661                                 fclose($localfile);
 662                                 fclose($rf);
 663                                 rename($actualfile.".tmp.data.deleteme", $actualfile);
 664                                 //error_log("got actualfile, tried to save as $actualfile, did it work?");
 665                         }
 666                 }
 667
 668                 //echo "got ".$file." for $url which is $actualfile\n";
 669
 670                 //echo "</html></pre>";
 671         }
 672
 673         function printDir($dir, $localfile, $baseurl)
 674         {
 675                 $localfile = preg_replace("/\/\/+/", "/", $localfile);
 676                 $uri = $_SERVER["REQUEST_URI"];
 677                 $content = "";
 678                 if(is_dir($dir)) {
 679                         $content .= "<html><head><title>Index of $localfile</title></head><body><h1>Index of $localfile</h1>";
 680                         $content .= "<table>";
 681                         $dh = opendir($dir);
 682                         while(($file = readdir($dh))!==false) {
 683                                 if($file != "." && $file != "..") $content .= "<tr><td><a href=\"$uri/$file\">$file</a></td></tr>";
 684                         }
 685                         $content .= "</table></body></html>";
 686
 687                         GLCASpageBuilder(null, null, $content);
 688
 689                 } else return false;
 690         }
 691
 692         function getRepoDetailsYum($url, $ismirrorlist=false)
 693         {
 694                 $actionurl = $url."/repodata/repomd.xml";
 695
 696                 error_log("Getting for action of $actionurl");
 697
 698                 $ld = file_get_contents($actionurl);
 699
 700                 // so here we try and get what this repository provides (os, version, arch), for yum this
 701                 // should come straight off the url... i.e. centos/6.0/os/x86_64/ (centos, 6.0, base os, 64bit arch)
 702
 703                 if(!$ld) return false;
 704
 705                 // ok, now we tokenize the url and try and guess at the content
 706                 $spurl = explode("/", $url);
 707
 708                 // first, find the OS
 709                 $kos = getKnownOSList();
 710                 $glt["OS"] = "unknown";
 711                 $glt["verison"] = "unknown";
 712                 $glt["arch"] = "unknown";
 713                 $glt["other"] = "unknown";
 714                 foreach($spurl as $comp) {
 715
 716                         // find a name
 717                         foreach($kos["os"]["short"] as $kosname => $koslong) {
 718                                 //error_log("Comparing $kosname and $koslong with $comp");
 719                                 if(strcasecmp($kosname, $comp) == 0) {
 720                                         //error_log("got $kosname, $koslong for $comp in $url");
 721                                         //echo "<pre>inone\n"; print_r($koslong); echo "</pre>";
 722                                         $glt["OS"] = $koslong;
 723                                 }
 724                         }
 725
 726                         // find a version, we assume its going to be something [numbers] and a . (optional)
 727                         if(preg_match("/^[0-9.]+$/", $comp)>0) {
 728                                 //error_log("version match of $comp");
 729                                 $glt["version"] = $comp;
 730                         }
 731
 732                         // now architecture, this can be either i?86 or x86_64 - can also be arm or otherwise, but lets just go with this for now
 733                         foreach($kos["arch"] as $archinter => $archname ) {
 734                                 //error_log("Comparing $archinter, $archname with $comp");
 735                                 if(strcasecmp($archname, $comp) == 0) {
 736                                         //error_log("arch match of $archname with $comp");
 737                                         $glt["arch"] = $archname;
 738                                 }
 739                         }
 740
 741                         // other is a bt harder, we really have to guess at this one
 742                         if(strcasecmp("os", $comp) == 0) $glt["other"] = "OS";
 743                         if(strcasecmp("update", $comp) == 0) $glt["other"] = "Updates";
 744                         if(strcasecmp("updates", $comp) == 0) $glt["other"] = "Updates";
 745                         if(strcasecmp("everything", $comp) == 0) $glt["other"] = "OS";
 746                 }
 747
 748
 749                 return $glt;
 750         }
 751
 752         function deleteRepo($rkey)
 753         {
 754                 $uconf = $this->config->getConfigVar("repodata");
 755                 $repostore = $this->config->getConfigVar("storagelocation");
 756
 757                 if($uconf !== false) {
 758                         $conf = unserialize($uconf);
 759                         foreach($conf as $key => $vla) {
 760                                 if($key == $rkey) {
 761                                         unset($conf["$rkey"]);
 762                                         $nconf = serialize($conf);
 763                                         system("rm -rf $repostore/$key");
 764                                         error_log("remove repo as $rkey");
 765                                         $this->config->setConfigVar("repodata", $nconf);
 766                                         $this->config->saveConfig();
 767                                 }
 768                         }
 769                 }
 770         }
 771
 772         function addRepo($desc, $os, $version, $arch, $other, $shorturl, $prefix, $repurl, $repotype, $init)
 773         {
 774                 $uconf = $this->config->getConfigVar("repodata");
 775
 776                 $cs["desc"] = $desc;
 777                 $cs["os"] = $os;
 778                 $cs["version"] = $version;
 779                 $cs["arch"] = $arch;
 780                 $cs["other"] = $other;
 781                 $cs["shorturl"] = $shorturl;
 782                 $cs["prefix"] = $prefix;
 783                 $cs["url"] = $repurl;
 784                 $cs["repotype"] = $repotype;
 785
 786
 787                 $ckey = 0;
 788                 if($uconf !== false) {
 789                         $conf = unserialize($uconf);
 790                         foreach($conf as $key => $val) {
 791                                 $ckey = $key;
 792                         }
 793                         $ckey++;
 794                 }
 795
 796                 $conf[$ckey] = $cs;
 797
 798                 $nconf = serialize($conf);
 799
 800                 error_log("add repo as $ckey");
 801                 $this->config->setConfigVar("repodata", $nconf);
 802                 $this->config->saveConfig();
 803
 804                 // now create the base structure in the repo
 805                 $repostore = $this->config->getConfigVar("storagelocation");
 806
 807
 808                 // now call update repo
 809                 if($init) $this->updateRepoYum($ckey);
 810         }
 811
 812         function updateRepo($repokey)
 813         {
 814                 // we only do yum yet
 815                 $this->updateRepoYum($repokey);
 816         }
 817
 818         function updateRepoYum($repokey)
 819         {
 820                 $repostore = $this->config->getConfigVar("storagelocation");
 821
 822                 $repod = $this->getRepo($repokey);
 823
 824                 $repourl = $repod["url"];
 825
 826                 if(!file_exists("$repostore/$repokey")) {
 827                         mkdir("$repostore/$repokey");
 828                 }
 829
 830                 if(!file_exists("$repostore/$repokey/repodata")) {
 831                         mkdir("$repostore/$repokey/repodata");
 832                 }
 833
 834                 //ignore_user_abort(true);
 835                 $actionurl = "$repourl/repodata/repomd.xml";
 836                 $repomdxml = file_get_contents($actionurl);
 837                 file_put_contents("$repostore/$repokey/repodata/repomd.xml", $repomdxml);
 838
 839                 $xml = simplexml_load_file("$repostore/$repokey/repodata/repomd.xml");
 840
 841
 842                 foreach($xml as $key => $var) {
 843                         //echo "for key $key has:\n";
 844                         //print_r($var);
 845                         if($key == "data") {
 846                                 $fileloc = $var->location["href"];
 847                                 if(!file_exists("$repostore/$repokey/$fileloc")) {
 848                                         error_log("getting $fileloc for $repokey on $repourl");
 849                                         $dlfile = file_get_contents("$repourl/$fileloc");
 850                                         file_put_contents("$repostore/$repokey/$fileloc", $dlfile);
 851                                 } else {
 852                                         error_log("Not getting $fileloc because we already have it");
 853                                 }
 854                         }
 855                 }
 856         }
 857
 858         function getRepo($id)
 859         {
 860                 $uconf = $this->config->getConfigVar("repodata");
 861                 if($uconf !== false) {
 862                         $lconf = unserialize($uconf);
 863                         return $lconf[$id];
 864                 } else return false;
 865
 866         }
 867
 868         function getRepos()
 869         {
 870                 $uconf = $this->config->getConfigVar("repodata");
 871                 if($uconf !== false) {
 872                         return unserialize($uconf);
 873                 } else return false;
 874
 875         }
 876
 877         private $config;
 878 }
 879
 880 ?>