[PATCH/RFC] Export file attachements in git-remote-mediawiki

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From: nguyenkimthuat <nguyenkimthuat@xxxxxxxxx>

The current version of the git-remote-mediawiki supports only import and export of the pages, doesn't support import and export of file attachements which are also exposed by MediaWiki API. This patch add the functionnality to export the file attachements from the local git's repository using the API of mediawiki.
 For the moment, i removed the line: "use enconding 'utf8'" because it's broken, especially when reding a binary file for exemple .pdf or .jpg.

Signed-off-by: Pavel Volek <Pavel.Volek@xxxxxxxxxxxxxxx>
Signed-off-by: NGUYEN Kim Thuat <Kim-Thuat.Nguyen@xxxxxxxxxxxxxxx>
Signed-off-by: ROUCHER IGLESIAS Javier <roucherj@xxxxxxxxxxxxxxx>
Signed-off-by: Matthieu Moy <Matthieu.Moy@xxxxxxx>
---
 contrib/mw-to-git/git-remote-mediawiki | 90 ++++++++++++++++++++++++++++++++--
 1 file changed, 87 insertions(+), 3 deletions(-)

diff --git a/contrib/mw-to-git/git-remote-mediawiki b/contrib/mw-to-git/git-remote-mediawiki
index c18bfa1..830e2d0 100755
--- a/contrib/mw-to-git/git-remote-mediawiki
+++ b/contrib/mw-to-git/git-remote-mediawiki
@@ -36,7 +36,6 @@
 use strict;
 use MediaWiki::API;
 use DateTime::Format::ISO8601;
-use encoding 'utf8';
 
 # use encoding 'utf8' doesn't change STDERROR
 # but we're going to output UTF-8 filenames to STDERR
@@ -114,6 +113,9 @@ $wiki_name =~ s/[^\/]*:\/\///;
 # and '@' sign, to avoid author like MWUser@HTTPUser@xxxxxxxx
 $wiki_name =~ s/^.*@//;
 
+# Get the list of file extensions supported by the current version of mediawiki 
+my @list_file_extensions = get_file_extensions();
+
 # Commands parser
 my $entry;
 my @cmd;
@@ -275,6 +277,13 @@ sub run_git {
 	return $res;
 }
 
+sub run_git_raw {
+        open(my $g,"-|","git " . $_[0]);   
+        my $r = do { local $/; <$g> };
+        close($g);
+
+        return $r;
+}
 
 sub get_last_local_revision {
 	# Get note regarding last mediawiki revision
@@ -642,8 +651,14 @@ sub mw_push_file {
 	my $old_sha1 = $diff_info_split[2];
 	my $page_created = ($old_sha1 eq NULL_SHA1);
 	my $page_deleted = ($new_sha1 eq NULL_SHA1);
+	my $file_deleted = ($new_sha1 eq NULL_SHA1);
 	$complete_file_name = mediawiki_clean_filename($complete_file_name);
 
+	my %hashFiles = map {$_ => 1}@list_file_extensions;
+	my $path = "File:".$complete_file_name;
+	my @extensions = split(/\./,$complete_file_name);
+	my $extension = pop(@extensions);
+
 	if (substr($complete_file_name,-3) eq ".mw") {
 		my $title = substr($complete_file_name,0,-3);
 
@@ -686,8 +701,34 @@ sub mw_push_file {
 		}
 		$newrevid = $result->{edit}->{newrevid};
 		print STDERR "Pushed file: $new_sha1 - $title\n";
-	} else {
-		print STDERR "$complete_file_name not a mediawiki file (Not pushable on this version of git-remote-mediawiki).\n"
+	} elsif (exists($hashFiles{$extension})) {
+		# Deleting and uploading a file require the priviledge of the user
+		if ($file_deleted) {
+			mw_connect_maybe();
+			my $res = $mediawiki->edit( {
+			action => 'delete',
+			title => $path,
+			reason => $summary } )
+			|| die $mediawiki-> {error}->{code} . ':' . $mediawiki->{error}->{details};
+
+		} else {
+			my $content = run_git_raw("cat-file blob $new_sha1");
+			mw_connect_maybe();
+				$mediawiki->{config}->{upload_url} = "$url/index.php/Special:Upload";
+
+				$mediawiki->upload( {
+				title => $complete_file_name,
+				summary => $summary,
+				data => $content,
+				ignorewarnings=>1
+                                  }, {
+					skip_encoding => 1 # Helps with names with accentuated characters
+			} ) || die $mediawiki-> {error}->{code} . ':' . $mediawiki->{error}->{details};
+			$newrevid = get_reviId_filepage();
+			print STDERR "Pushed file: $new_sha1 - $complete_file_name\n";
+			 }
+	else {
+		print STDERR "$complete_file_name is not supported on this version of Mediawiki.\n"
 	}
 	return ($newrevid, "ok");
 }
@@ -825,3 +866,46 @@ sub mw_push_revision {
 	print STDOUT "ok $remote\n";
 	return 1;
 }
+
+sub get_reviId_filepage() {
+	mw_connect_maybe();
+
+	my $max_rev_num_file = 0;
+
+	my @list_file_pages = get_mw_media_pages();
+
+	foreach my $file_page (@list_file_pages) {
+	my $id = $file_page->{pageid};
+        
+	my $query = {
+		action => 'query',
+		prop => 'revisions',
+		rvprop => 'ids',
+		pageids => $id,
+		};
+
+		my $result = $mediawiki->api($query);
+
+		my $lastrev = pop(@{$result->{query}->{pages}->{$id}->{revisions}});
+	}
+}
+
+sub get_file_extensions {
+	mw_connect_maybe();
+
+	my $query = {
+	action => 'query',
+	meta => 'siteinfo',
+	siprop => 'fileextensions'
+	};
+
+	my $result = $mediawiki->api($query);
+
+	my @file_extensions = map $_->{ext},@{$result->{query}->{fileextensions}};
+
+	return @file_extensions;
+}
+
+
+
+
-- 
1.7.10.2.552.gaa3bb87

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