browser-plugins-update.sh

   1 #!/bin/sh
   2 # Author: Elan Ruusamäe <glen@pld-linux.org>
   3 # Date: 2006-09-13
   4 # See more browser-plugins.README
   5
   6 # TODO
   7 # - implement blacklist.d/anyfile-browser.arch.blacklist support
   8 # - check not to link amd64 plugins to opera.i386 dir
   9
  10 sysconfdir='/etc/browser-plugins'
  11 browsersdir="$sysconfdir/browsers.d"
  12 blacklistdir="$sysconfdir/blacklist.d"
  13 plugindirs='/usr/lib/browser-plugins /usr/lib64/browser-plugins'
  14
  15 # bool in_blacklist(char *blacklistfile, char *pluginfile)
  16 # returns true if pluginfile is listed in blacklistfile
  17 in_blacklist() {
  18         local blacklistfile="$1"
  19         local pluginfile="$2"
  20         while read glob; do
  21                 if [[ "$glob" = \#* ]] || [[ "$glob" = "" ]]; then
  22                         continue
  23                 fi
  24                 if [[ "$pluginfile" = $glob ]]; then
  25                         echo >&3 "  $pluginfile blacklisted with $glob ($blacklistfile)"
  26                         return 0
  27                 fi
  28         done < $blacklistfile
  29
  30         return 1
  31 }
  32
  33 # bool blacklisted(char *browser, char *pluginfile)
  34 # returns true if pluginfile is blacklisted for browser
  35 blacklisted() {
  36         local browser="$1"
  37         local pluginfile="$2"
  38         # check browser blacklist file
  39         if [ -f "$blacklistdir/$browser.blacklist" ]; then
  40                 if in_blacklist "$blacklistdir/$browser.blacklist" "$pluginfile"; then
  41                         return 0
  42                 fi
  43         fi
  44         # retrun true for now
  45         return 1
  46 }
  47
  48 # char **get_browsers(void)
  49 # returns list of installed browsers
  50 get_browsers() {
  51         for dir in "$browsersdir"/*.*; do
  52                 if [ -L "$dir" ]; then
  53                         dir="${dir#$browsersdir/}"
  54                         browsers="$browsers $dir"
  55                 fi
  56         done
  57
  58         echo >&3 "browsers: $browsers"
  59 }
  60
  61 # char *browserplugindir(char *)
  62 # returns plugin directory for browser
  63 browserplugindir() {
  64         local browser="$1"
  65         local dir
  66         dir=$(readlink "$browsersdir/$browser")
  67         if [ -z "$dir" ]; then
  68                 echo >&2 "$0: browser plugin dir empty for $browser; exiting!"
  69                 exit 1
  70         fi
  71         echo "$dir"
  72 }
  73
  74 remove_plugins() {
  75         # kill dead links
  76         for browser in $browsers; do
  77                 find $(browserplugindir "$browser") -type l | while read link; do
  78                         [ -f "$link" ] || rm -f "$link"
  79                 done
  80         done
  81 }
  82
  83 install_plugins() {
  84         # link new plugins
  85         for plugindir in $plugindirs; do
  86                 # skip non-existing plugindirs
  87                 [ -d "$plugindir" ] || continue
  88
  89                 cd "$plugindir"
  90                 find -type f | while read line; do
  91                         pluginfile="${line#./}"
  92                         echo >&3 "pluginfile: $pluginfile"
  93                         for browser in $browsers; do
  94                                 echo >&3 " check $pluginfile for $browser"
  95                                 browserplugindir=$(browserplugindir "$browser")
  96                                 link="$browserplugindir/$pluginfile"
  97                                 if blacklisted "$browser" "$pluginfile"; then
  98                                         # just in case unlink it
  99                                         if [ -f "$link" ]; then
 100                                                 echo "Removing $pluginfile from $browserplugindir"
 101                                                 rm -f "$link"
 102                                         fi
 103                                 else
 104                                         # skip existing links
 105                                         [ ! -L $link ] || continue
 106                                         echo "Installing $pluginfile to $browserplugindir"
 107                                         ln -s "$plugindir/$pluginfile" "$link"
 108                                 fi
 109                         done
 110                 done
 111         done
 112 }
 113
 114 if [[ "$*" = *debug* ]]; then
 115         exec 3>&2
 116 else
 117         exec 3>/dev/null
 118 fi
 119
 120 get_browsers
 121
 122 remove_plugins
 123 install_plugins