threads / patch / 13724

patchgitweb: fix "next" link on bottom of commit log page

Subject: [PATCH] gitweb: fix "next" link on bottom of commit log page

## tl;dr

5 messages between May 29, 2008 and Jun 2, 2008. Diffs are folded; open one to read it.

replies: 4people: 2as markdown or json

Gerrit Pape· May 29, 2008, 18:10 UTC · lore

When viewing a gitweb repository commit log, the "next" link at the top of the page works as expected, the "next" link on the bottom of the page has a=search instead of a=log and thus fails to get you to the next page. This commit replaces the bottom "next" link with the same links as shown at the top of the page.

The bad link was reported by Kai Blin through
 http://bugs.debian.org/481902
Signed-off-by: Gerrit Pape <pape@smarden.org>
---
 gitweb/gitweb.perl |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)
Show changes to gitweb/gitweb.perl +1 −6
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 57a1905..f7b9ac2 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -4703,12 +4703,7 @@ sub git_log {
 		git_print_log($co{'comment'}, -final_empty_line=> 1);
 		print "</div>\n";
 	}
-	if ($#commitlist >= 100) {
-		print "<div class=\"page_nav\">\n";
-		print $cgi->a({-href => href(-replay=>1, page=>$page+1),
-			       -accesskey => "n", -title => "Alt-n"}, "next");
-		print "</div>\n";
-	}
+	git_print_page_nav('log','', $hash,undef,undef, $paging_nav);
 	git_footer_html();
 }
 
-- 
1.5.5.2
Jakub Narebski· May 30, 2008, 08:12 UTC · re: Gerrit Pape · lore

Re: [PATCH] gitweb: fix "next" link on bottom of commit log page

Gerrit Pape <pape@smarden.org> writes:
Show 5 quoted lines
> When viewing a gitweb repository commit log, the "next" link at the top
> of the page works as expected, the "next" link on the bottom of the page
> has a=search instead of a=log and thus fails to get you to the next
> page.  This commit replaces the bottom "next" link with the same links
> as shown at the top of the page.
> -		print $cgi->a({-href => href(-replay=>1, page=>$page+1),
> -			       -accesskey => "n", -title => "Alt-n"}, "next");

Should not happen: href(-replay=>1, ...) should have the same value of 'a' parameter as the page it is in, so it should be 'log' not 'search'.

Will investigate.
-- 
Jakub Narebski
Poland
ShadeHawk on #git
Jakub Narebski· Jun 2, 2008, 08:52 UTC · re: Jakub Narebski · lore

Re: [PATCH] gitweb: fix "next" link on bottom of commit log page

Jakub Narebski <jnareb@gmail.com> writes:
Show 15 quoted lines
> Gerrit Pape <pape@smarden.org> writes:
> 
> > When viewing a gitweb repository commit log, the "next" link at the top
> > of the page works as expected, the "next" link on the bottom of the page
> > has a=search instead of a=log and thus fails to get you to the next
> > page.  This commit replaces the bottom "next" link with the same links
> > as shown at the top of the page.
> 
> > -		print $cgi->a({-href => href(-replay=>1, page=>$page+1),
> > -			       -accesskey => "n", -title => "Alt-n"}, "next");
> 
> Should not happen: href(-replay=>1, ...) should have the same value
> of 'a' parameter as the page it is in, so it should be 'log' not 'search'.
> 
> Will investigate.

Now I know what is happening. git_header_html() modifies parameters in $cgi, and href(-replay, ...) uses paramemeters values from $cgi, not saved in variables (although it could).

So the correct solution would be to change the part which generates search form in git_header_html() to _not_ modify $cgi->params().

Patch will follow...

P.S. I wonder if using Test::WWW::Mechanize (from CPAN) to test gitweb's HTML output would be a good idea...

-- 
Jakub Narebski
Poland
ShadeHawk on #git
Jakub Narebski· Jun 2, 2008, 09:54 UTC · re: Jakub Narebski · lore

[PATCH] gitweb: Fix "next" link on bottom of page

Fix search form generation to not modify $cgi->param(...)'s.

In git_header_html() we used to use $cgi->hidden(-name => "a") etc. to generate hidden fields; unfortunately to use this form it is required to modify $cgi->param("a") etc., which makes href(-replay,...) use wrong replay values. This for example made the "next" link on the bottom of the page has a=search instead of a=$action, and thus fails to get you to the next page.

Because in CGI the value of a hidden field is "sticky", there is no way to modify it short of modifying $cgi->param(...). Therefore it got replaced by generating <input type="hidden" ...> element [semi] directly.

Alternate solution would be for href(-replay,...) to use values saved in global variables, such as $action etc., instead of (re)reading them from $cgi->param($symbol).

The bad link was reported by Kai Blin through
  http://bugs.debian.org/481902
Reported-by: Kai Blin <kai.blin@gmail.com>
Noticed-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
---
Jakub Narebski <jnareb@gmail.com> wrote:
Show 13 quoted lines
> Gerrit Pape <pape@smarden.org> writes:
> 
>> When viewing a gitweb repository commit log, the "next" link at the top
>> of the page works as expected, the "next" link on the bottom of the page
>> has a=search instead of a=log and thus fails to get you to the next
>> page.  This commit replaces the bottom "next" link with the same links
>> as shown at the top of the page.
> 
>> -		print $cgi->a({-href => href(-replay=>1, page=>$page+1),
>> -			       -accesskey => "n", -title => "Alt-n"}, "next");
> 
> Should not happen: href(-replay=>1, ...) should have the same value
> of 'a' parameter as the page it is in, so it should be 'log' not 'search'.

This bug was caused by the fact that git_header_html() modified parameters in $cgi->param(...) when generating search form, and href(-replay, ...) uses paramemeters values from $cgi, not saved in variables (although it could).

This fixes mentioned bug, not only in the case of 'log' view, but in all cases (although it is possible that this bug doesn't occur for other pages).

[I'm sorry if I have send this patch twice.]
 gitweb/gitweb.perl |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)
Show changes to gitweb/gitweb.perl +5 −8
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index dd0f0ac..50cde3b 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2622,7 +2622,7 @@ EOF
 	print "</div>\n";
 
 	my ($have_search) = gitweb_check_feature('search');
-	if ((defined $project) && ($have_search)) {
+	if (defined $project && $have_search) {
 		if (!defined $searchtext) {
 			$searchtext = "";
 		}
@@ -2638,16 +2638,13 @@ EOF
 		my ($use_pathinfo) = gitweb_check_feature('pathinfo');
 		if ($use_pathinfo) {
 			$action .= "/".esc_url($project);
-		} else {
-			$cgi->param("p", $project);
 		}
-		$cgi->param("a", "search");
-		$cgi->param("h", $search_hash);
 		print $cgi->startform(-method => "get", -action => $action) .
 		      "<div class=\"search\">\n" .
-		      (!$use_pathinfo && $cgi->hidden(-name => "p") . "\n") .
-		      $cgi->hidden(-name => "a") . "\n" .
-		      $cgi->hidden(-name => "h") . "\n" .
+		      (!$use_pathinfo &&
+		      $cgi->input({-name=>"p", -value=>$project, -type=>"hidden"}) . "\n") .
+		      $cgi->input({-name=>"a", -value=>"search", -type=>"hidden"}) . "\n" .
+		      $cgi->input({-name=>"h", -value=>$search_hash, -type=>"hidden"}) . "\n" .
 		      $cgi->popup_menu(-name => 'st', -default => 'commit',
 		                       -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) .
 		      $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) .
Gerrit Pape· Jun 2, 2008, 17:02 UTC · re: Jakub Narebski · lore

Re: [PATCH] gitweb: Fix "next" link on bottom of page

On Mon, Jun 02, 2008 at 11:54:41AM +0200, Jakub Narebski wrote:
Show 8 quoted lines
> This bug was caused by the fact that git_header_html() modified
> parameters in $cgi->param(...) when generating search form, and
> href(-replay, ...) uses paramemeters values from $cgi, not saved in
> variables (although it could).
> 
> This fixes mentioned bug, not only in the case of 'log' view, but in
> all cases (although it is possible that this bug doesn't occur for
> other pages).
>  gitweb/gitweb.perl |   13 +++++--------
>  1 files changed, 5 insertions(+), 8 deletions(-)
Hi, this fixes the bottom 'next' link in the log view for me, so
Tested-by: Gerrit Pape <pape@smarden.org>
Thanks, Gerrit.

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