freeze cam pic for webpage
authorBernhard Tittelbach <xro@realraum.at>
Fri, 26 Mar 2010 06:26:14 +0000 (06:26 +0000)
committerBernhard Tittelbach <xro@realraum.at>
Fri, 26 Mar 2010 06:26:14 +0000 (06:26 +0000)
sensor_graph/freeze_realraum_picture.pl [new file with mode: 0755]

diff --git a/sensor_graph/freeze_realraum_picture.pl b/sensor_graph/freeze_realraum_picture.pl
new file mode 100755 (executable)
index 0000000..7802378
--- /dev/null
@@ -0,0 +1,67 @@
+#!/usr/bin/perl -w
+#
+#
+use strict;
+use utf8;
+use CGI;
+my $q = CGI->new;
+require LWP::UserAgent;
+my $ua = LWP::UserAgent->new(env_proxy => 1,
+                              keep_alive => 1,
+                              timeout => 30,
+                             );
+use HTTP::Cookies;
+use LWP;
+$ua->cookie_jar({});
+
+###############
+$cam::url = "http://slug.realraum.at:8088/?action=snapshot";
+#$cam::get = {action=>"snapshot"};
+$cam::localpath = "/tmp/realraum-freeze.jpg";
+###############
+
+sub output_saved_image
+{
+  return 0 if ( not -e $cam::localpath);
+  my $fh;  
+  print STDOUT header("image/jpeg");
+  open($fh,"<$cam::localpath") or exit;
+  while (<$fh>) {print $_};
+  close($fh);
+  return 1;
+}
+
+sub save_remote_image
+{
+  my $response;
+  $response = $ua->get($cam::url);
+  if (defined $response and $response->content =~ /^\xff\xd8/)
+  {    
+    my $fh;
+    open($fh,">$cam::localpath");
+    print $fh $response->content;
+    close($fh);
+    
+    print STDOUT header("text/html");
+    print STDOUT "<html><body>done</body></html>\n";
+    return 1;
+  }
+  return 0;
+}
+
+sub output_error
+{
+  print STDOUT header("text/html","404 Not Found");
+  print STDOUT "<html><body><h1>Sorry</h1><h2>The picture you requested could not be found</h2></body></html>\n"; 
+  return 1;
+}
+
+if ($q->param('freeze') eq "98VB9s")
+{
+  exit if (&save_remote_image);
+}
+elsif (-e $cam::localpath and -M $cam::localpath)
+{
+  exit if (&output_saved_image);
+}
+&output_error;