/* ui-shared.c: common web output functions
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
const char cgit_doctype[] =
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n";
static char *http_date(time_t t)
{
static char day[][4] =
{"Sun", "Mon", "Tue", "Wed", "Thu"pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long *//* cgit.c: cgi for the git scm
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
static int cgit_prepare_cache(struct cacheitem *item)
{
if (!cgit_repo && cgit_query_repo) {
char *title = fmt("%s - %s", cgit_root_title, "Bad request");
cgit_print_docstart(title, item);
cgit_print_pageheader(title, 0);
cgit_print_error(fmt("Unknown repo: %s", cgit_query_repo));
cgit_print_docend();
return 0;
}
if (!cgit_repo) {
item->name = xstrdup(fmt("%s/index.html", cgit_cache_root));
item->ttl = cgit_cache_root_ttl;
return 1;
}
if (!cgit_cmd) {
item->name = xstrdup(fmt("%s/%s/index.%s.html", cgit_cache_root,
cache_safe_filename(cgit_repo->url),
cache_safe_filename(cgit_querystring)));
item->ttl = cgit_cache_repo_ttl;
} else {
item->name = xstrdup(fmt("%s/%s/%s/%s.html", cgit_cache_root,
cache_safe_filename(cgit_repo->url),
cgit_query_page,
cache_safe_filename(cgit_querystring)));
if (cgit_query_has_symref)
item->ttl = cgit_cache_dynamic_ttl;
else if (cgit_query_has_sha1)
item->ttl = cgit_cache_static_ttl;
else
item->ttl = cgit_cache_repo_ttl;
}
return 1;
}
struct refmatch {
char *req_ref;
char *first_ref;
int match;
};
int find_current_ref(const char *refname, const unsigned char *sha1,
int flags, void *cb_data)
{
struct refmatch *info;
info = (struct refmatch *)cb_data;
if (!strcmp(refname, info->req_ref))
info->match = 1;
if (!info->first_ref)
info->first_ref = xstrdup(refname);
return info->match;
}
char *find_default_branch(struct repoinfo *repo)
{
struct refmatch info;
info.req_ref = repo->defbranch;
info.first_ref = NULL;
info.match = 0;
for_each_branch_ref(find_current_ref, &info);
if (info.match)
return info.req_ref;
else
return info.first_ref;
}
static void cgit_print_repo_page(struct cacheitem *item)
{
char *title, *tmp;
int show_search;
unsigned char sha1[20];
if (chdir(cgit_repo->path)) {
title = fmt("%s - %s", cgit_root_title, "Bad request");
cgit_print_docstart(title, item);
cgit_print_pageheader(title, 0);
cgit_print_error(fmt("Unable to scan repository: %s",
strerror(errno)));
cgit_print_docend();
return;
}
title = fmt("%s - %s", cgit_repo->name, cgit_repo->desc);
show_search = 0;
setenv("GIT_DIR", cgit_repo->path, 1);
if (!cgit_query_head) {
cgit_query_head = xstrdup(find_default_branch(cgit_repo));
cgit_repo->defbranch = cgit_query_head;
}
if (!cgit_query_head) {
cgit_print_docstart(title, item);
cgit_print_pageheader(title, 0);
cgit_print_error("Repository seems to be empty");
cgit_print_docend();
return;
}
if (get_sha1(cgit_query_head, sha1)) {
tmp = xstrdup(cgit_query_head);
cgit_query_head = cgit_repo->defbranch;
cgit_print_docstart(title, item);
cgit_print_pageheader(title, 0);
cgit_print_error(fmt("Invalid branch: %s", tmp));
cgit_print_docend();
return;
}
if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) {
cgit_print_snapshot(item, cgit_query_head, cgit_query_sha1,
cgit_repobasename(cgit_repo->url),
cgit_query_path,
cgit_repo->snapshots );
return;
}
if (cgit_cmd == CMD_PATCH) {
cgit_print_patch(cgit_query_sha1, item);
return;
}
if (cgit_cmd == CMD_BLOB) {
cgit_print_blob(item, cgit_query_sha1, cgit_query_path);
return;
}
show_search = (cgit_cmd == CMD_LOG);
cgit_print_docstart(title, item);
if (!cgit_cmd) {
cgit_print_pageheader("summary", show_search);
cgit_print_summary();
cgit_print_docend();
return;
}
cgit_print_pageheader(cgit_query_page, show_search);
switch(cgit_cmd) {
case CMD_LOG:
cgit_print_log(cgit_query_sha1, cgit_query_ofs,
cgit_max_commit_count, cgit_query_grep, cgit_query_search,
cgit_query_path, 1);
break;
case CMD_TREE:
cgit_print_tree(cgit_query_sha1, cgit_query_path);
break;
case CMD_COMMIT:
cgit_print_commit(cgit_query_sha1);
break;
case CMD_REFS:
cgit_print_refs();
break;
case CMD_TAG:
cgit_print_tag(cgit_query_sha1);
break;
case CMD_DIFF:
cgit_print_diff(cgit_query_sha1, cgit_query_sha2, cgit_query_path);
break;
default:
cgit_print_error("Invalid request");
}
cgit_print_docend();
}
static void cgit_fill_cache(struct cacheitem *item, int use_cache)
{
static char buf[PATH_MAX];
int stdout2;
getcwd(buf, sizeof(buf));
item->st.st_mtime = time(NULL);
if (use_cache) {
stdout2 = chk_positive(dup(STDOUT_FILENO),
"Preserving STDOUT");
chk_zero(close(STDOUT_FILENO), "Closing STDOUT");
chk_positive(dup2(item->fd, STDOUT_FILENO), "Dup2(cachefile)");
}
if (cgit_repo)
cgit_print_repo_page(item);
else
cgit_print_repolist(item);
if (use_cache) {
chk_zero(close(STDOUT_FILENO), "Close redirected STDOUT");
chk_positive(dup2(stdout2, STDOUT_FILENO),
"Restoring original STDOUT");
chk_zero(close(stdout2), "Closing temporary STDOUT");
}
chdir(buf);
}
static void cgit_check_cache(struct cacheitem *item)
{
int i = 0;
top:
if (++i > cgit_max_lock_attempts) {
die("cgit_refresh_cache: unable to lock %s: %s",
item->name, strerror(errno));
}
if (!cache_exist(item)) {
if (!cache_lock(item)) {
sleep(1);
goto top;
}
if (!cache_exist(item)) {
cgit_fill_cache(item, 1);
cache_unlock(item);
} else {
cache_cancel_lock(item);
}
} else if (cache_expired(item) && cache_lock(item)) {
if (cache_expired(item)) {
cgit_fill_cache(item, 1);
cache_unlock(item);
} else {
cache_cancel_lock(item);
}
}
}
static void cgit_print_cache(struct cacheitem *item)
{
static char buf[4096];
ssize_t i;
int fd = open(item->name, O_RDONLY);
if (fd<0)
die("Unable to open cached file %s", item->name);
while((i=read(fd, buf, sizeof(buf))) > 0)
write(STDOUT_FILENO, buf, i);
close(fd);
}
static void cgit_parse_args(int argc, const char **argv)
{
int i;
for (i = 1; i < argc; i++) {
if (!strncmp(argv[i], "--cache=", 8)) {
cgit_cache_root = xstrdup(argv[i]+8);
}
if (!strcmp(argv[i], "--nocache")) {
cgit_nocache = 1;
}
if (!strncmp(argv[i], "--query=", 8)) {
cgit_querystring = xstrdup(argv[i]+8);
}
if (!strncmp(argv[i], "--repo=", 7)) {
cgit_query_repo = xstrdup(argv[i]+7);
}
if (!strncmp(argv[i], "--page=", 7)) {
cgit_query_page = xstrdup(argv[i]+7);
}
if (!strncmp(argv[i], "--head=", 7)) {
cgit_query_head = xstrdup(argv[i]+7);
cgit_query_has_symref = 1;
}
if (!strncmp(argv[i], "--sha1=", 7)) {
cgit_query_sha1 = xstrdup(argv[i]+7);
cgit_query_has_sha1 = 1;
}
if (!strncmp(argv[i], "--ofs=", 6)) {
cgit_query_ofs = atoi(argv[i]+6);
}
}
}
int main(int argc, const char **argv)
{
struct cacheitem item;
const char *cgit_config_env = getenv("CGIT_CONFIG");
htmlfd = STDOUT_FILENO;
item.st.st_mtime = time(NULL);
cgit_repolist.length = 0;
cgit_repolist.count = 0;
cgit_repolist.repos = NULL;
cgit_read_config(cgit_config_env ? cgit_config_env : CGIT_CONFIG,
cgit_global_config_cb);
cgit_repo = NULL;
if (getenv("SCRIPT_NAME"))
cgit_script_name = xstrdup(getenv("SCRIPT_NAME"));
if (getenv("QUERY_STRING"))
cgit_querystring = xstrdup(getenv("QUERY_STRING"));
cgit_parse_args(argc, argv);
cgit_parse_query(cgit_querystring, cgit_querystring_cb);
if (!cgit_prepare_cache(&item))
return 0;
if (cgit_nocache) {
cgit_fill_cache(&item, 0);
} else {
cgit_check_cache(&item);
cgit_print_cache(&item);
}
return 0;
}
