diff options
Diffstat (limited to 'gitweb/gitweb.perl')
| -rwxr-xr-x | gitweb/gitweb.perl | 107 |
1 files changed, 84 insertions, 23 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl index 7e477af956..3c879b88fe 100755 --- a/gitweb/gitweb.perl +++ b/gitweb/gitweb.perl @@ -221,6 +221,12 @@ our %avatar_size = ( 'double' => 32 ); +# Used to set the maximum load that we will still respond to gitweb queries. +# If server load exceed this value then return "503 server busy" error. +# If gitweb cannot determined server load, it is taken to be 0. +# Leave it undefined (or set to 'undef') to turn off load checking. +our $maxload = 300; + # You define site-wide feature defaults here; override them with # $GITWEB_CONFIG as necessary. our %feature = ( @@ -551,12 +557,38 @@ if (-e $GITWEB_CONFIG) { do $GITWEB_CONFIG_SYSTEM if -e $GITWEB_CONFIG_SYSTEM; } +# Get loadavg of system, to compare against $maxload. +# Currently it requires '/proc/loadavg' present to get loadavg; +# if it is not present it returns 0, which means no load checking. +sub get_loadavg { + if( -e '/proc/loadavg' ){ + open my $fd, '<', '/proc/loadavg' + or return 0; + my @load = split(/\s+/, scalar <$fd>); + close $fd; + + # The first three columns measure CPU and IO utilization of the last one, + # five, and 10 minute periods. The fourth column shows the number of + # currently running processes and the total number of processes in the m/n + # format. The last column displays the last process ID used. + return $load[0] || 0; + } + # additional checks for load average should go here for things that don't export + # /proc/loadavg + + return 0; +} + # version of the core git binary our $git_version = qx("$GIT" --version) =~ m/git version (.*)$/ ? $1 : "unknown"; $number_of_git_cmds++; $projects_list ||= $projectroot; +if (defined $maxload && get_loadavg() > $maxload) { + die_error(503, "The load average on the server is too high"); +} + # ====================================================================== # input validation and dispatch @@ -1111,6 +1143,7 @@ sub validate_refname { # in utf-8 thanks to "binmode STDOUT, ':utf8'" at beginning sub to_utf8 { my $str = shift; + return undef unless defined $str; if (utf8::valid($str)) { utf8::decode($str); return $str; @@ -1123,6 +1156,7 @@ sub to_utf8 { # correct, but quoted slashes look too horrible in bookmarks sub esc_param { my $str = shift; + return undef unless defined $str; $str =~ s/([^A-Za-z0-9\-_.~()\/:@ ]+)/CGI::escape($1)/eg; $str =~ s/ /\+/g; return $str; @@ -1131,6 +1165,7 @@ sub esc_param { # quote unsafe chars in whole URL, so some charactrs cannot be quoted sub esc_url { my $str = shift; + return undef unless defined $str; $str =~ s/([^A-Za-z0-9\-_.~();\/;?:@&=])/sprintf("%%%02X", ord($1))/eg; $str =~ s/\+/%2B/g; $str =~ s/ /\+/g; @@ -1142,6 +1177,8 @@ sub esc_html { my $str = shift; my %opts = @_; + return undef unless defined $str; + $str = to_utf8($str); $str = $cgi->escapeHTML($str); if ($opts{'-nbsp'}) { @@ -1156,6 +1193,8 @@ sub esc_path { my $str = shift; my %opts = @_; + return undef unless defined $str; + $str = to_utf8($str); $str = $cgi->escapeHTML($str); if ($opts{'-nbsp'}) { @@ -1298,7 +1337,6 @@ sub chop_str { $str =~ m/^(.*?)($begre)$/; my ($lead, $body) = ($1, $2); if (length($lead) > 4) { - $body =~ s/^[^;]*;// if ($lead =~ m/&[^;]*$/); $lead = " ..."; } return "$lead$body"; @@ -1309,8 +1347,6 @@ sub chop_str { $str =~ m/^(.*?)($begre)$/; my ($mid, $right) = ($1, $2); if (length($mid) > 5) { - $left =~ s/&[^;]*$//; - $right =~ s/^[^;]*;// if ($mid =~ m/&[^;]*$/); $mid = " ... "; } return "$left$mid$right"; @@ -1320,7 +1356,6 @@ sub chop_str { my $body = $1; my $tail = $2; if (length($tail) > 4) { - $body =~ s/&[^;]*$//; $tail = "... "; } return "$body$tail"; @@ -3222,7 +3257,7 @@ EOF print "</head>\n" . "<body>\n"; - if (-f $site_header) { + if (defined $site_header && -f $site_header) { insert_file($site_header); } @@ -3323,12 +3358,13 @@ sub git_footer_html { print "</div>\n"; # class="page_footer" } - if (-f $site_footer) { + if (defined $site_footer && -f $site_footer) { insert_file($site_footer); } print qq!<script type="text/javascript" src="$javascript"></script>\n!; - if ($action eq 'blame_incremental') { + if (defined $action && + $action eq 'blame_incremental') { print qq!<script type="text/javascript">\n!. qq!startBlame("!. href(action=>"blame_data", -replay=>1) .qq!",\n!. qq! "!. href() .qq!");\n!. @@ -3343,7 +3379,7 @@ sub git_footer_html { "</html>"; } -# die_error(<http_status_code>, <error_message>) +# die_error(<http_status_code>, <error_message>[, <detailed_html_description>]) # Example: die_error(404, 'Hash not found') # By convention, use the following status codes (as defined in RFC 2616): # 400: Invalid or missing CGI parameters, or @@ -3354,22 +3390,33 @@ sub git_footer_html { # 500: The server isn't configured properly, or # an internal error occurred (e.g. failed assertions caused by bugs), or # an unknown error occurred (e.g. the git binary died unexpectedly). +# 503: The server is currently unavailable (because it is overloaded, +# or down for maintenance). Generally, this is a temporary state. sub die_error { my $status = shift || 500; - my $error = shift || "Internal server error"; - - my %http_responses = (400 => '400 Bad Request', - 403 => '403 Forbidden', - 404 => '404 Not Found', - 500 => '500 Internal Server Error'); + my $error = esc_html(shift) || "Internal Server Error"; + my $extra = shift; + + my %http_responses = ( + 400 => '400 Bad Request', + 403 => '403 Forbidden', + 404 => '404 Not Found', + 500 => '500 Internal Server Error', + 503 => '503 Service Unavailable', + ); git_header_html($http_responses{$status}); print <<EOF; <div class="page_body"> <br /><br /> $status - $error <br /> -</div> EOF + if (defined $extra) { + print "<hr />\n" . + "$extra\n"; + } + print "</div>\n"; + git_footer_html(); exit; } @@ -3471,14 +3518,21 @@ sub git_print_header_div { } sub print_local_time { + print format_local_time(@_); +} + +sub format_local_time { + my $localtime = ''; my %date = @_; if ($date{'hour_local'} < 6) { - printf(" (<span class=\"atnight\">%02d:%02d</span> %s)", + $localtime .= sprintf(" (<span class=\"atnight\">%02d:%02d</span> %s)", $date{'hour_local'}, $date{'minute_local'}, $date{'tz_local'}); } else { - printf(" (%02d:%02d %s)", + $localtime .= sprintf(" (%02d:%02d %s)", $date{'hour_local'}, $date{'minute_local'}, $date{'tz_local'}); } + + return $localtime; } # Outputs the author name and date in long form @@ -4302,17 +4356,24 @@ sub fill_project_list_info { # print 'sort by' <th> element, generating 'sort by $name' replay link # if that order is not selected sub print_sort_th { + print format_sort_th(@_); +} + +sub format_sort_th { my ($name, $order, $header) = @_; + my $sort_th = ""; $header ||= ucfirst($name); if ($order eq $name) { - print "<th>$header</th>\n"; + $sort_th .= "<th>$header</th>\n"; } else { - print "<th>" . - $cgi->a({-href => href(-replay=>1, order=>$name), - -class => "header"}, $header) . - "</th>\n"; + $sort_th .= "<th>" . + $cgi->a({-href => href(-replay=>1, order=>$name), + -class => "header"}, $header) . + "</th>\n"; } + + return $sort_th; } sub git_project_list_body { @@ -4743,7 +4804,7 @@ sub git_project_list { } git_header_html(); - if (-f $home_text) { + if (defined $home_text && -f $home_text) { print "<div class=\"index_include\">\n"; insert_file($home_text); print "</div>\n"; |