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gitweb: Make command invocations go through the git wrapper 

This patch makes invocations of core git commands go through the 'git'
binary itself, which improves readability and might help system
administrators lock down their CGI environment for security.

Signed-off-by: Alp Toker <alp@atoker.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Alp Toker 2006-07-12 23:55:10 +01:00 коммит произвёл Junio C Hamano
Родитель 49da1dafc0
Коммит e130ddaaf3
1 изменённых файлов: 29 добавлений и 33 удалений
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62
gitweb/gitweb.cgi
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@ -22,20 +22,16 @@ our $my_url = $cgi->url();
our $my_uri = $cgi->url(-absolute => 1);
our $rss_link = "";
# location of the git-core binaries
our $gitbin = "/usr/bin";
# core git executable to use
# this can just be "git" if your webserver has a sensible PATH
our $GIT = "/usr/bin/git";
# absolute fs-path which will be prepended to the project path
#our $projectroot = "/pub/scm";
our $projectroot = "/home/kay/public_html/pub/scm";
# version of the git-core binaries
our $git_version = qx($gitbin/git --version);
if ($git_version =~ m/git version (.*)$/) {
$git_version = $1;
} else {
$git_version = "unknown";
}
# version of the core git binary
our $git_version = qx($GIT --version) =~ m/git version (.*)$/ ? $1 : "unknown";
# location for temporary files needed for diffs
our $git_temp = "/tmp/gitweb";
@ -392,7 +388,7 @@ sub die_error {
sub git_get_type {
my $hash = shift;
open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
open my $fd, "-|", "$GIT cat-file -t $hash" or return;
my $type = <$fd>;
close $fd or return;
chomp $type;
@ -404,7 +400,7 @@ sub git_read_head {
my $oENV = $ENV{'GIT_DIR'};
my $retval = undef;
$ENV{'GIT_DIR'} = "$projectroot/$project";
if (open my $fd, "-|", "$gitbin/git-rev-parse", "--verify", "HEAD") {
if (open my $fd, "-|", $GIT, "rev-parse", "--verify", "HEAD") {
my $head = <$fd>;
close $fd;
if (defined $head && $head =~ /^([0-9a-fA-F]{40})$/) {
@ -444,7 +440,7 @@ sub git_read_tag {
my %tag;
my @comment;
open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
open my $fd, "-|", "$GIT cat-file tag $tag_id" or return;
$tag{'id'} = $tag_id;
while (my $line = <$fd>) {
chomp $line;
@ -516,7 +512,7 @@ sub git_read_commit {
@commit_lines = @$commit_text;
} else {
$/ = "\0";
open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
open my $fd, "-|", "$GIT rev-list --header --parents --max-count=1 $commit_id" or return;
@commit_lines = split '\n', <$fd>;
close $fd or return;
$/ = "\n";
@ -614,7 +610,7 @@ sub git_diff_print {
if (defined $from) {
$from_tmp = "$git_temp/gitweb_" . $$ . "_from";
open my $fd2, "> $from_tmp";
open my $fd, "-|", "$gitbin/git-cat-file blob $from";
open my $fd, "-|", "$GIT cat-file blob $from";
my @file = <$fd>;
print $fd2 @file;
close $fd2;
@ -625,7 +621,7 @@ sub git_diff_print {
if (defined $to) {
$to_tmp = "$git_temp/gitweb_" . $$ . "_to";
open my $fd2, "> $to_tmp";
open my $fd, "-|", "$gitbin/git-cat-file blob $to";
open my $fd, "-|", "$GIT cat-file blob $to";
my @file = <$fd>;
print $fd2 @file;
close $fd2;
@ -844,7 +840,7 @@ sub git_get_project_config {
$key =~ s/^gitweb\.//;
return if ($key =~ m/\W/);
my $val = qx($gitbin/git-repo-config --get gitweb.$key);
my $val = qx($GIT repo-config --get gitweb.$key);
return ($val);
}
@ -1066,7 +1062,7 @@ sub git_summary {
"<tr><td>owner</td><td>$owner</td></tr>\n" .
"<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
"</table>\n";
open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT rev-list --max-count=17 " . git_read_head($project) or die_error(undef, "Open failed.");
my (@revlist) = map { chomp; $_ } <$fd>;
close $fd;
print "<div>\n" .
@ -1254,7 +1250,7 @@ sub git_blame {
$hash = git_get_hash_by_path($hash_base, $file_name, "blob")
or die_error(undef, "Error lookup file.");
}
open ($fd, "-|", "$gitbin/git-annotate", '-l', '-t', '-r', $file_name, $hash_base)
open ($fd, "-|", $GIT, "annotate", '-l', '-t', '-r', $file_name, $hash_base)
or die_error(undef, "Open failed.");
git_header_html();
print "<div class=\"page_nav\">\n" .
@ -1449,7 +1445,7 @@ sub git_get_hash_by_path {
my $tree = $base;
my @parts = split '/', $path;
while (my $part = shift @parts) {
open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
open my $fd, "-|", "$GIT ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
my (@entries) = map { chomp; $_ } <$fd>;
close $fd or return undef;
foreach my $line (@entries) {
@ -1536,7 +1532,7 @@ sub git_blob_plain_mimetype {
sub git_blob_plain {
my $type = shift;
open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
open my $fd, "-|", "$GIT cat-file blob $hash" or die_error("Couldn't cat $file_name, $hash");
$type ||= git_blob_plain_mimetype($fd, $file_name);
@ -1563,7 +1559,7 @@ sub git_blob {
$hash = git_get_hash_by_path($base, $file_name, "blob") || die_error(undef, "Error lookup file.");
}
my $have_blame = git_get_project_config_bool ('blame');
open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT cat-file blob $hash" or die_error(undef, "Open failed.");
my $mimetype = git_blob_plain_mimetype($fd, $file_name);
if ($mimetype !~ m/^text\//) {
close $fd;
@ -1629,7 +1625,7 @@ sub git_tree {
}
}
$/ = "\0";
open my $fd, "-|", "$gitbin/git-ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
open my $fd, "-|", "$GIT ls-tree -z $hash" or die_error(undef, "Open git-ls-tree failed.");
chomp (my (@entries) = <$fd>);
close $fd or die_error(undef, "Reading tree failed.");
$/ = "\n";
@ -1712,7 +1708,7 @@ sub git_tree {
sub git_rss {
# http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT rev-list --max-count=150 " . git_read_head($project) or die_error(undef, "Open failed.");
my (@revlist) = map { chomp; $_ } <$fd>;
close $fd or die_error(undef, "Reading rev-list failed.");
print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
@ -1732,7 +1728,7 @@ sub git_rss {
last;
}
my %cd = date_str($co{'committer_epoch'});
open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
open $fd, "-|", "$GIT diff-tree -r $co{'parent'} $co{'id'}" or next;
my @difftree = map { chomp; $_ } <$fd>;
close $fd or next;
print "<item>\n" .
@ -1820,7 +1816,7 @@ sub git_log {
" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
my (@revlist) = map { chomp; $_ } <$fd>;
close $fd;
@ -1911,7 +1907,7 @@ sub git_commit {
$root = " --root";
$parent = "";
}
open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
@difftree = map { chomp; $_ } <$fd>;
close $fd or die_error(undef, "Reading diff-tree failed.");
@ -2153,7 +2149,7 @@ sub git_commitdiff {
if (!defined $hash_parent) {
$hash_parent = $co{'parent'};
}
open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
my (@difftree) = map { chomp; $_ } <$fd>;
close $fd or die_error(undef, "Reading diff-tree failed.");
@ -2243,14 +2239,14 @@ sub git_commitdiff {
sub git_commitdiff_plain {
mkdir($git_temp, 0700);
open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
my (@difftree) = map { chomp; $_ } <$fd>;
close $fd or die_error(undef, "Reading diff-tree failed.");
# try to figure out the next tag after this commit
my $tagname;
my $refs = read_info_ref("tags");
open $fd, "-|", "$gitbin/git-rev-list HEAD";
open $fd, "-|", "$GIT rev-list HEAD";
chomp (my (@commits) = <$fd>);
close $fd;
foreach my $commit (@commits) {
@ -2321,7 +2317,7 @@ sub git_history {
print "<div class=\"page_path\"><b>/" . esc_html($file_name) . "</b><br/></div>\n";
open my $fd, "-|",
"$gitbin/git-rev-list --full-history $hash -- \'$file_name\'";
"$GIT rev-list --full-history $hash -- \'$file_name\'";
print "<table cellspacing=\"0\">\n";
my $alternate = 0;
while (my $line = <$fd>) {
@ -2408,7 +2404,7 @@ sub git_search {
my $alternate = 0;
if ($commit_search) {
$/ = "\0";
open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
open my $fd, "-|", "$GIT rev-list --header --parents $hash" or next;
while (my $commit_text = <$fd>) {
if (!grep m/$searchtext/i, $commit_text) {
next;
@ -2458,7 +2454,7 @@ sub git_search {
if ($pickaxe_search) {
$/ = "\n";
open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S\'$searchtext\'";
open my $fd, "-|", "$GIT rev-list $hash | $GIT diff-tree -r --stdin -S\'$searchtext\'";
undef %co;
my @files;
while (my $line = <$fd>) {
@ -2529,7 +2525,7 @@ sub git_shortlog {
" | " . $cgi->a({-href => "$my_uri?" . esc_param("p=$project;a=tree;h=$hash;hb=$hash")}, "tree") . "<br/>\n";
my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
open my $fd, "-|", "$GIT rev-list $limit $hash" or die_error(undef, "Open failed.");
my (@revlist) = map { chomp; $_ } <$fd>;
close $fd;