Bug#879278: fakeupstream.cgi: Broken google-fonts upstream (probably svn/TLS certificate)

[Gioele Barabucci <gioele@svario.it>]

Please find attached another patch that does away with svn and uses LWP 
to download the `FONTLOG.txt` file from https://raw.githubusercontent.com.

This patch will:

1. resolve the current problem with the google-fonts upstream;
2. avoid having to make any configuration changes to qa.debian.org or 
use unsafe settings;
3. remove the current dependency on svn.

Regards,

--
Gioele Barabucci <gioele@svario.it>

--- a/fakeupstream.cgi	2017-10-21 14:24:26.493174836 +0200
+++ b/fakeupstream.cgi	2017-10-21 17:21:18.615005794 +0200
@@ -793,19 +793,18 @@
 	my $font_name = $2;
 
 	my $github_repo_url = "https://github.com/google/fonts/tree/master/$font_licence/$font_name";;
-	my $svn_fontlog_url = "https://github.com/google/fonts/trunk/$font_licence/$font_name/FONTLOG.txt";;
-
-	my @command = (
-		'/usr/bin/svn',
-		'cat',
-		$svn_fontlog_url
-	);
+	my $raw_fontlog_url = "https://raw.githubusercontent.com/google/fonts/master/$font_licence/$font_name/FONTLOG.txt";;
 
 	my @versions_eng;
 
-	open(my $svn_cat_fh, '-|', @command)
-		or return_error("Can't run svn cat: $!");
-	while (<$svn_cat_fh>) {
+	my $ua = LWP::UserAgent->new;
+	my $response = $ua->get( $raw_fontlog_url );
+
+	return_error("failed to read $raw_fontlog_url : $response->status_line")
+		if(not $response->is_success);
+
+	my $fontlog_content = $response->decoded_content;
+	foreach (split(/\n/, $fontlog_content)) {
 		chomp;
 
 		# 15 July 2011 (Author) version notes
@@ -813,7 +812,6 @@
 
 		push @versions_eng, "$1 $2 $3"
 	}
-	close($svn_cat_fh);
 
 	return_error("no versions found for font $font_licence/$font_name")
 		if (scalar(@versions_eng) == 0);