cgitsb/ui-repolist.c
Peter Colberg 9abe4a26a9 ui-repolist: return HTTP 404 if no repositories found
Return HTTP status code 404 Not found when querying a non-existent
repository, which signals to search engines that a repository no
longer exists. Further, some webservers such as nginx permit
logging requests to different files depending on the HTTP code.

Signed-off-by: Peter Colberg <peter@colberg.org>
2016-01-13 17:19:34 +01:00

382 рядки
8.5 KiB
C

/* ui-repolist.c: functions for generating the repolist page
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
#include "ui-repolist.h"
#include "html.h"
#include "ui-shared.h"
static time_t read_agefile(char *path)
{
time_t result;
size_t size;
char *buf = NULL;
struct strbuf date_buf = STRBUF_INIT;
if (readfile(path, &buf, &size)) {
free(buf);
return -1;
}
if (parse_date(buf, &date_buf) == 0)
result = strtoul(date_buf.buf, NULL, 10);
else
result = 0;
free(buf);
strbuf_release(&date_buf);
return result;
}
static int get_repo_modtime(const struct cgit_repo *repo, time_t *mtime)
{
struct strbuf path = STRBUF_INIT;
struct stat s;
struct cgit_repo *r = (struct cgit_repo *)repo;
if (repo->mtime != -1) {
*mtime = repo->mtime;
return 1;
}
strbuf_addf(&path, "%s/%s", repo->path, ctx.cfg.agefile);
if (stat(path.buf, &s) == 0) {
*mtime = read_agefile(path.buf);
if (*mtime) {
r->mtime = *mtime;
goto end;
}
}
strbuf_reset(&path);
strbuf_addf(&path, "%s/refs/heads/%s", repo->path,
repo->defbranch ? repo->defbranch : "master");
if (stat(path.buf, &s) == 0) {
*mtime = s.st_mtime;
r->mtime = *mtime;
goto end;
}
strbuf_reset(&path);
strbuf_addf(&path, "%s/%s", repo->path, "packed-refs");
if (stat(path.buf, &s) == 0) {
*mtime = s.st_mtime;
r->mtime = *mtime;
goto end;
}
*mtime = 0;
r->mtime = *mtime;
end:
strbuf_release(&path);
return (r->mtime != 0);
}
static void print_modtime(struct cgit_repo *repo)
{
time_t t;
if (get_repo_modtime(repo, &t))
cgit_print_age(t, -1, NULL);
}
static int is_match(struct cgit_repo *repo)
{
if (!ctx.qry.search)
return 1;
if (repo->url && strcasestr(repo->url, ctx.qry.search))
return 1;
if (repo->name && strcasestr(repo->name, ctx.qry.search))
return 1;
if (repo->desc && strcasestr(repo->desc, ctx.qry.search))
return 1;
if (repo->owner && strcasestr(repo->owner, ctx.qry.search))
return 1;
return 0;
}
static int is_in_url(struct cgit_repo *repo)
{
if (!ctx.qry.url)
return 1;
if (repo->url && starts_with(repo->url, ctx.qry.url))
return 1;
return 0;
}
static int is_visible(struct cgit_repo *repo)
{
if (repo->hide || repo->ignore)
return 0;
if (!(is_match(repo) && is_in_url(repo)))
return 0;
return 1;
}
static int any_repos_visible(void)
{
int i;
for (i = 0; i < cgit_repolist.count; i++) {
if (is_visible(&cgit_repolist.repos[i]))
return 1;
}
return 0;
}
static void print_sort_header(const char *title, const char *sort)
{
char *currenturl = cgit_currenturl();
html("<th class='left'><a href='");
html_attr(currenturl);
htmlf("?s=%s", sort);
if (ctx.qry.search) {
html("&amp;q=");
html_url_arg(ctx.qry.search);
}
htmlf("'>%s</a></th>", title);
free(currenturl);
}
static void print_header(void)
{
html("<tr class='nohover'>");
print_sort_header("Name", "name");
print_sort_header("Description", "desc");
if (ctx.cfg.enable_index_owner)
print_sort_header("Owner", "owner");
print_sort_header("Idle", "idle");
if (ctx.cfg.enable_index_links)
html("<th class='left'>Links</th>");
html("</tr>\n");
}
static void print_pager(int items, int pagelen, char *search, char *sort)
{
int i, ofs;
char *class = NULL;
html("<ul class='pager'>");
for (i = 0, ofs = 0; ofs < items; i++, ofs = i * pagelen) {
class = (ctx.qry.ofs == ofs) ? "current" : NULL;
html("<li>");
cgit_index_link(fmt("[%d]", i + 1), fmt("Page %d", i + 1),
class, search, sort, ofs, 0);
html("</li>");
}
html("</ul>");
}
static int cmp(const char *s1, const char *s2)
{
if (s1 && s2) {
if (ctx.cfg.case_sensitive_sort)
return strcmp(s1, s2);
else
return strcasecmp(s1, s2);
}
if (s1 && !s2)
return -1;
if (s2 && !s1)
return 1;
return 0;
}
static int sort_section(const void *a, const void *b)
{
const struct cgit_repo *r1 = a;
const struct cgit_repo *r2 = b;
int result;
time_t t;
result = cmp(r1->section, r2->section);
if (!result) {
if (!strcmp(ctx.cfg.repository_sort, "age")) {
// get_repo_modtime caches the value in r->mtime, so we don't
// have to worry about inefficiencies here.
if (get_repo_modtime(r1, &t) && get_repo_modtime(r2, &t))
result = r2->mtime - r1->mtime;
}
if (!result)
result = cmp(r1->name, r2->name);
}
return result;
}
static int sort_name(const void *a, const void *b)
{
const struct cgit_repo *r1 = a;
const struct cgit_repo *r2 = b;
return cmp(r1->name, r2->name);
}
static int sort_desc(const void *a, const void *b)
{
const struct cgit_repo *r1 = a;
const struct cgit_repo *r2 = b;
return cmp(r1->desc, r2->desc);
}
static int sort_owner(const void *a, const void *b)
{
const struct cgit_repo *r1 = a;
const struct cgit_repo *r2 = b;
return cmp(r1->owner, r2->owner);
}
static int sort_idle(const void *a, const void *b)
{
const struct cgit_repo *r1 = a;
const struct cgit_repo *r2 = b;
time_t t1, t2;
t1 = t2 = 0;
get_repo_modtime(r1, &t1);
get_repo_modtime(r2, &t2);
return t2 - t1;
}
struct sortcolumn {
const char *name;
int (*fn)(const void *a, const void *b);
};
static const struct sortcolumn sortcolumn[] = {
{"section", sort_section},
{"name", sort_name},
{"desc", sort_desc},
{"owner", sort_owner},
{"idle", sort_idle},
{NULL, NULL}
};
static int sort_repolist(char *field)
{
const struct sortcolumn *column;
for (column = &sortcolumn[0]; column->name; column++) {
if (strcmp(field, column->name))
continue;
qsort(cgit_repolist.repos, cgit_repolist.count,
sizeof(struct cgit_repo), column->fn);
return 1;
}
return 0;
}
void cgit_print_repolist(void)
{
int i, columns = 3, hits = 0, header = 0;
char *last_section = NULL;
char *section;
int sorted = 0;
if (!any_repos_visible()) {
cgit_print_error_page(404, "Not found", "No repositories found");
return;
}
if (ctx.cfg.enable_index_links)
++columns;
if (ctx.cfg.enable_index_owner)
++columns;
ctx.page.title = ctx.cfg.root_title;
cgit_print_http_headers();
cgit_print_docstart();
cgit_print_pageheader();
if (ctx.cfg.index_header)
html_include(ctx.cfg.index_header);
if (ctx.qry.sort)
sorted = sort_repolist(ctx.qry.sort);
else if (ctx.cfg.section_sort)
sort_repolist("section");
html("<table summary='repository list' class='list nowrap'>");
for (i = 0; i < cgit_repolist.count; i++) {
ctx.repo = &cgit_repolist.repos[i];
if (!is_visible(ctx.repo))
continue;
hits++;
if (hits <= ctx.qry.ofs)
continue;
if (hits > ctx.qry.ofs + ctx.cfg.max_repo_count)
continue;
if (!header++)
print_header();
section = ctx.repo->section;
if (section && !strcmp(section, ""))
section = NULL;
if (!sorted &&
((last_section == NULL && section != NULL) ||
(last_section != NULL && section == NULL) ||
(last_section != NULL && section != NULL &&
strcmp(section, last_section)))) {
htmlf("<tr class='nohover'><td colspan='%d' class='reposection'>",
columns);
html_txt(section);
html("</td></tr>");
last_section = section;
}
htmlf("<tr><td class='%s'>",
!sorted && section ? "sublevel-repo" : "toplevel-repo");
cgit_summary_link(ctx.repo->name, ctx.repo->name, NULL, NULL);
html("</td><td>");
html_link_open(cgit_repourl(ctx.repo->url), NULL, NULL);
html_ntxt(ctx.cfg.max_repodesc_len, ctx.repo->desc);
html_link_close();
html("</td><td>");
if (ctx.cfg.enable_index_owner) {
if (ctx.repo->owner_filter) {
cgit_open_filter(ctx.repo->owner_filter);
html_txt(ctx.repo->owner);
cgit_close_filter(ctx.repo->owner_filter);
} else {
html("<a href='");
html_attr(cgit_currenturl());
html("?q=");
html_url_arg(ctx.repo->owner);
html("'>");
html_txt(ctx.repo->owner);
html("</a>");
}
html("</td><td>");
}
print_modtime(ctx.repo);
html("</td>");
if (ctx.cfg.enable_index_links) {
html("<td>");
cgit_summary_link("summary", NULL, "button", NULL);
cgit_log_link("log", NULL, "button", NULL, NULL, NULL,
0, NULL, NULL, ctx.qry.showmsg, 0);
cgit_tree_link("tree", NULL, "button", NULL, NULL, NULL);
html("</td>");
}
html("</tr>\n");
}
html("</table>");
if (hits > ctx.cfg.max_repo_count)
print_pager(hits, ctx.cfg.max_repo_count, ctx.qry.search, ctx.qry.sort);
cgit_print_docend();
}
void cgit_print_site_readme(void)
{
cgit_print_layout_start();
if (!ctx.cfg.root_readme)
goto done;
cgit_open_filter(ctx.cfg.about_filter, ctx.cfg.root_readme);
html_include(ctx.cfg.root_readme);
cgit_close_filter(ctx.cfg.about_filter);
done:
cgit_print_layout_end();
}