cgit/ui-commit.c
Jason A. Donenfeld 8a92df033e Do not load user or system gitconfig and gitattributes
While doing any kind of git loading, unset HOME variables and set
NOSYSTEM variables so that cgit does not load any settings that a user
may have set for his own /usr/bin/git usage.

This fixes a fatal error introduced with git 1.8, whereupon git would
fatally exit when failing to access particular files.

The result of this is that only repo-local configuration files are
accessed:

zx2c4@thinkpad ~/Projects/cgit $ HOME=/root QUERY_STRING="url=foo/log"
CGIT_CONFIG=tests/trash/cgitrc strace -e access ./cgit >/dev/null
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
access("repos/foo/.git/objects", X_OK) = 0
access("repos/foo/.git/refs", X_OK) = 0
access("repos/foo/.git/config", R_OK) = 0
access("repos/foo/.git/config", R_OK) = 0
access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0
access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0
access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0
access("repos/foo/.git/objects/b3/bafdbf0183f4897ef8b1319cb8c490ed54717e", F_OK) = 0
+++ exited with 0 +++

Reported-by: Ferry Huberts <ferry.huberts@pelagic.nl>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Ferry Huberts <ferry.huberts@pelagic.nl>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2013-04-08 21:43:26 +02:00

145 lines
4.0 KiB
C

/* ui-commit.c: generate commit view
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "ui-commit.h"
#include "html.h"
#include "ui-shared.h"
#include "ui-diff.h"
#include "ui-log.h"
void cgit_print_commit(char *hex, const char *prefix)
{
struct commit *commit, *parent;
struct commitinfo *info, *parent_info;
struct commit_list *p;
struct strbuf notes = STRBUF_INIT;
unsigned char sha1[20];
char *tmp, *tmp2;
int parents = 0;
if (!hex)
hex = ctx.qry.head;
if (get_sha1(hex, sha1)) {
cgit_print_error("Bad object id: %s", hex);
return;
}
commit = lookup_commit_reference(sha1);
if (!commit) {
cgit_print_error("Bad commit reference: %s", hex);
return;
}
info = cgit_parse_commit(commit);
format_display_notes(sha1, &notes, PAGE_ENCODING, 0);
load_ref_decorations(DECORATE_FULL_REFS);
cgit_print_diff_ctrls();
html("<table summary='commit info' class='commit-info'>\n");
html("<tr><th>author</th><td>");
html_txt(info->author);
if (!ctx.cfg.noplainemail) {
html(" ");
html_txt(info->author_email);
}
html("</td><td class='right'>");
cgit_print_date(info->author_date, FMT_LONGDATE, ctx.cfg.local_time);
html("</td></tr>\n");
html("<tr><th>committer</th><td>");
html_txt(info->committer);
if (!ctx.cfg.noplainemail) {
html(" ");
html_txt(info->committer_email);
}
html("</td><td class='right'>");
cgit_print_date(info->committer_date, FMT_LONGDATE, ctx.cfg.local_time);
html("</td></tr>\n");
html("<tr><th>commit</th><td colspan='2' class='sha1'>");
tmp = sha1_to_hex(commit->object.sha1);
cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
html(" (");
cgit_patch_link("patch", NULL, NULL, NULL, tmp, prefix);
html(")</td></tr>\n");
html("<tr><th>tree</th><td colspan='2' class='sha1'>");
tmp = xstrdup(hex);
cgit_tree_link(sha1_to_hex(commit->tree->object.sha1), NULL, NULL,
ctx.qry.head, tmp, NULL);
if (prefix) {
html(" /");
cgit_tree_link(prefix, NULL, NULL, ctx.qry.head, tmp, prefix);
}
free(tmp);
html("</td></tr>\n");
for (p = commit->parents; p; p = p->next) {
parent = lookup_commit_reference(p->item->object.sha1);
if (!parent) {
html("<tr><td colspan='3'>");
cgit_print_error("Error reading parent commit");
html("</td></tr>");
continue;
}
html("<tr><th>parent</th>"
"<td colspan='2' class='sha1'>");
tmp = tmp2 = sha1_to_hex(p->item->object.sha1);
if (ctx.repo->enable_subject_links) {
parent_info = cgit_parse_commit(parent);
tmp2 = parent_info->subject;
}
cgit_commit_link(tmp2, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
html(" (");
cgit_diff_link("diff", NULL, NULL, ctx.qry.head, hex,
sha1_to_hex(p->item->object.sha1), prefix, 0);
html(")</td></tr>");
parents++;
}
if (ctx.repo->snapshots) {
html("<tr><th>download</th><td colspan='2' class='sha1'>");
cgit_print_snapshot_links(ctx.qry.repo, ctx.qry.head,
hex, ctx.repo->snapshots);
html("</td></tr>");
}
html("</table>\n");
html("<div class='commit-subject'>");
if (ctx.repo->commit_filter)
cgit_open_filter(ctx.repo->commit_filter);
html_txt(info->subject);
if (ctx.repo->commit_filter)
cgit_close_filter(ctx.repo->commit_filter);
show_commit_decorations(commit);
html("</div>");
html("<div class='commit-msg'>");
if (ctx.repo->commit_filter)
cgit_open_filter(ctx.repo->commit_filter);
html_txt(info->msg);
if (ctx.repo->commit_filter)
cgit_close_filter(ctx.repo->commit_filter);
html("</div>");
if (notes.len != 0) {
html("<div class='notes-header'>Notes</div>");
html("<div class='notes'>");
if (ctx.repo->commit_filter)
cgit_open_filter(ctx.repo->commit_filter);
html_txt(notes.buf);
if (ctx.repo->commit_filter)
cgit_close_filter(ctx.repo->commit_filter);
html("</div>");
html("<div class='notes-footer'></div>");
}
if (parents < 3) {
if (parents)
tmp = sha1_to_hex(commit->parents->item->object.sha1);
else
tmp = NULL;
cgit_print_diff(ctx.qry.sha1, tmp, prefix, 0);
}
strbuf_release(&notes);
cgit_free_commitinfo(info);
}