bin/updateaptrepo.php

   1 <?php
   2
   3 $url = "";
   4 $file = "";
   5 if(isset($argv[1])) {
   6         $url = $argv[1];
   7 }
   8
   9 if(isset($argv[2])) {
  10         $file = $argv[2];
  11 }
  12
  13 if($url == "" || $file == "") {
  14         echo "need a url and file\n";
  15         exit(0);
  16 }
  17
  18 if(file_exists("$file/update.lock")) {
  19         // try get a lock
  20         $lf = fopen("$file/update.lock", "r");
  21         if($lf) {
  22                 $lockres = flock($lf, LOCK_EX|LOCK_NB);
  23                 if(!$lockres) {
  24                         error_log("flock did fail, all is right with the world a download is in progress");
  25                         exit(0);
  26                 }
  27         } else {
  28                 error_log("weird problem");
  29         }
  30         fclose($lf);
  31 }
  32 $lf = fopen("$file/update.lock", "w");
  33 flock($lf, LOCK_EX|LOCK_NB);
  34
  35 // next we go into $file/dists and open each dir
  36 // download "release"
  37 // then check every file in release against what we have... this is giong to be a nightmare
  38 $dh = opendir("$file/dists/");
  39 while(($fn = readdir($dh))!==false) {
  40         if($fn != "." && $fn != "..") {
  41                 echo "checkin dist, $fn with $url\n";
  42                 $releasefile = file_get_contents("$url/dists/$fn/Release");
  43                 file_put_contents("$file/dists/$fn/Release.new", $releasefile);
  44                 if(file_exists("$file/dists/$fn/Release")) {
  45                         unlink("$file/dists/$fn/Release");
  46                         rename("$file/dists/$fn/Release.new", "$file/dists/$fn/Release");
  47                 } else {
  48                         rename("$file/dists/$fn/Release.new", "$file/dists/$fn/Release");
  49                 }
  50
  51                 echo "got release file\n";
  52
  53                 // now open that release file and check all our ... versions and stuff, this bit sucks, i hate parsing text files
  54                 $relfile = fopen("$file/dists/$fn/Release", "r");
  55                 $continue = true;
  56                 $chkfile = false;
  57                 if($relfile) while($continue) {
  58                         $line = fgets($relfile);
  59                         if(feof($relfile)) $continue = false;
  60                         // first try to parse a tag
  61                         $tags = explode(":", $line);
  62                         // check for a tag we're into
  63                         if(strcasecmp($tags[0], "md5sum") == 0) {
  64                                 $chkfile = true;
  65                                 $chktype = "md5";
  66
  67                         } else if(strcasecmp($tags[0], "SHA1") == 0) {
  68                                 $chkfile = true;
  69                                 $chktype = "sha1";
  70
  71                         } else if(strcasecmp($tags[0], "SHA256") == 0) {
  72                                 $chkfile = true;
  73                                 $chktype = "sha256";
  74
  75
  76                         } else if($chkfile) {
  77                                 //echo "in chkfile on $line\n";
  78                                 $line = trim($line);
  79                                 $lspl = preg_split("/ +/", $line);
  80                                 if(isset($lspl[2])) {
  81                                         $sum = $lspl[0];
  82                                         $size = ((int)($lspl[1]));
  83                                         $distrofile = $lspl[2];
  84                                         if(file_exists("$file/dists/$fn/$distrofile")) {
  85                                                 $updatefile = false;
  86                                                 $mysum = hash_file($chktype, "$file/dists/$fn/$distrofile");
  87                                                 $mysize = filesize("$file/dists/$fn/$distrofile");
  88                                                 //echo "would check $sum, $size, $distrofile against $distrofile/dists/$fn, $sum\n";
  89                                                 if(strtolower($mysum) == strtolower($sum)) {
  90                                                         echo "file $distrofile is clean for sum\n";
  91                                                 } else {
  92                                                         echo "File $distrofile needs updating with $sum, $mysum, $chktype, $url\n";
  93                                                         $updatefile = true;
  94                                                 }
  95
  96                                                 if($size != $mysize) {
  97                                                         echo "File $distrofile needs updating with $size, $mysize, $url\n";
  98                                                         $updatefile = true;
  99                                                 } else {
 100                                                         echo "file $distrofile is clean for size\n";
 101                                                 }
 102                                                 if($updatefile) {
 103                                                         $getthisfile = file_get_contents("$url/dists/$fn/$distrofile");
 104                                                         unlink("$file/dists/$fn/$distrofile");
 105                                                         file_put_contents("$file/dists/$fn/$distrofile", $getthisfile);
 106                                                         echo "Updated file\n";
 107                                                 }
 108                                         }
 109                                 } else {
 110                                         $chkfile = false;
 111                                 }
 112                         }
 113                 }
 114         }
 115 }
 116 fclose($lf);
 117 unlink("$file/update.lock");
 118 echo "im at an end\n";
 119
 120 ?>