cgit/cgit.c
Johan Herland 0ff143df70 struct cgit_cmd: Differentiate between various usages of ctx.qry.path
For many commands/pages (e.g. 'tree', 'diff', 'plain', etc.), the
ctx.qry.path argument is interpreted as a path within the "virtual" project
directory structure. However, for some other commands (notably 'refs', and
the clone-related commands) ctx.qry.path is used in a different context (as
a more or less "real" path within the '.git' directory).

This patch differentiates between these two usages of ctx.qry.path, by
introducing a new variable - ctx.qry.vpath - which is equal to ctx.qry.path
in the former case, and NULL in the latter.

This will become useful in future patches when we want various pages and the
links between them to preserve existing in-project paths.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
2010-06-19 10:40:22 +02:00

739 lines
21 KiB
C

/* 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"
#include "cache.h"
#include "cmd.h"
#include "configfile.h"
#include "html.h"
#include "ui-shared.h"
#include "ui-stats.h"
#include "scan-tree.h"
const char *cgit_version = CGIT_VERSION;
void add_mimetype(const char *name, const char *value)
{
struct string_list_item *item;
item = string_list_insert(xstrdup(name), &ctx.cfg.mimetypes);
item->util = xstrdup(value);
}
struct cgit_filter *new_filter(const char *cmd, int extra_args)
{
struct cgit_filter *f;
if (!cmd || !cmd[0])
return NULL;
f = xmalloc(sizeof(struct cgit_filter));
f->cmd = xstrdup(cmd);
f->argv = xmalloc((2 + extra_args) * sizeof(char *));
f->argv[0] = f->cmd;
f->argv[1] = NULL;
return f;
}
static void process_cached_repolist(const char *path);
void repo_config(struct cgit_repo *repo, const char *name, const char *value)
{
if (!strcmp(name, "name"))
repo->name = xstrdup(value);
else if (!strcmp(name, "clone-url"))
repo->clone_url = xstrdup(value);
else if (!strcmp(name, "desc"))
repo->desc = xstrdup(value);
else if (!strcmp(name, "owner"))
repo->owner = xstrdup(value);
else if (!strcmp(name, "defbranch"))
repo->defbranch = xstrdup(value);
else if (!strcmp(name, "snapshots"))
repo->snapshots = ctx.cfg.snapshots & cgit_parse_snapshots_mask(value);
else if (!strcmp(name, "enable-log-filecount"))
repo->enable_log_filecount = ctx.cfg.enable_log_filecount * atoi(value);
else if (!strcmp(name, "enable-log-linecount"))
repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
else if (!strcmp(name, "enable-remote-branches"))
repo->enable_remote_branches = atoi(value);
else if (!strcmp(name, "max-stats"))
repo->max_stats = cgit_find_stats_period(value, NULL);
else if (!strcmp(name, "module-link"))
repo->module_link= xstrdup(value);
else if (!strcmp(name, "section"))
repo->section = xstrdup(value);
else if (!strcmp(name, "readme") && value != NULL) {
if (*value == '/')
repo->readme = xstrdup(value);
else
repo->readme = xstrdup(fmt("%s/%s", repo->path, value));
} else if (ctx.cfg.enable_filter_overrides) {
if (!strcmp(name, "about-filter"))
repo->about_filter = new_filter(value, 0);
else if (!strcmp(name, "commit-filter"))
repo->commit_filter = new_filter(value, 0);
else if (!strcmp(name, "source-filter"))
repo->source_filter = new_filter(value, 1);
}
}
void config_cb(const char *name, const char *value)
{
if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
ctx.cfg.section = xstrdup(value);
else if (!strcmp(name, "repo.url"))
ctx.repo = cgit_add_repo(value);
else if (ctx.repo && !strcmp(name, "repo.path"))
ctx.repo->path = trim_end(value, '/');
else if (ctx.repo && !prefixcmp(name, "repo."))
repo_config(ctx.repo, name + 5, value);
else if (!strcmp(name, "root-title"))
ctx.cfg.root_title = xstrdup(value);
else if (!strcmp(name, "root-desc"))
ctx.cfg.root_desc = xstrdup(value);
else if (!strcmp(name, "root-readme"))
ctx.cfg.root_readme = xstrdup(value);
else if (!strcmp(name, "css"))
ctx.cfg.css = xstrdup(value);
else if (!strcmp(name, "favicon"))
ctx.cfg.favicon = xstrdup(value);
else if (!strcmp(name, "footer"))
ctx.cfg.footer = xstrdup(value);
else if (!strcmp(name, "head-include"))
ctx.cfg.head_include = xstrdup(value);
else if (!strcmp(name, "header"))
ctx.cfg.header = xstrdup(value);
else if (!strcmp(name, "logo"))
ctx.cfg.logo = xstrdup(value);
else if (!strcmp(name, "index-header"))
ctx.cfg.index_header = xstrdup(value);
else if (!strcmp(name, "index-info"))
ctx.cfg.index_info = xstrdup(value);
else if (!strcmp(name, "logo-link"))
ctx.cfg.logo_link = xstrdup(value);
else if (!strcmp(name, "module-link"))
ctx.cfg.module_link = xstrdup(value);
else if (!strcmp(name, "virtual-root")) {
ctx.cfg.virtual_root = trim_end(value, '/');
if (!ctx.cfg.virtual_root && (!strcmp(value, "/")))
ctx.cfg.virtual_root = "";
} else if (!strcmp(name, "nocache"))
ctx.cfg.nocache = atoi(value);
else if (!strcmp(name, "noplainemail"))
ctx.cfg.noplainemail = atoi(value);
else if (!strcmp(name, "noheader"))
ctx.cfg.noheader = atoi(value);
else if (!strcmp(name, "snapshots"))
ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
else if (!strcmp(name, "enable-filter-overrides"))
ctx.cfg.enable_filter_overrides = atoi(value);
else if (!strcmp(name, "enable-index-links"))
ctx.cfg.enable_index_links = atoi(value);
else if (!strcmp(name, "enable-log-filecount"))
ctx.cfg.enable_log_filecount = atoi(value);
else if (!strcmp(name, "enable-log-linecount"))
ctx.cfg.enable_log_linecount = atoi(value);
else if (!strcmp(name, "enable-remote-branches"))
ctx.cfg.enable_remote_branches = atoi(value);
else if (!strcmp(name, "enable-tree-linenumbers"))
ctx.cfg.enable_tree_linenumbers = atoi(value);
else if (!strcmp(name, "max-stats"))
ctx.cfg.max_stats = cgit_find_stats_period(value, NULL);
else if (!strcmp(name, "cache-size"))
ctx.cfg.cache_size = atoi(value);
else if (!strcmp(name, "cache-root"))
ctx.cfg.cache_root = xstrdup(value);
else if (!strcmp(name, "cache-root-ttl"))
ctx.cfg.cache_root_ttl = atoi(value);
else if (!strcmp(name, "cache-repo-ttl"))
ctx.cfg.cache_repo_ttl = atoi(value);
else if (!strcmp(name, "cache-scanrc-ttl"))
ctx.cfg.cache_scanrc_ttl = atoi(value);
else if (!strcmp(name, "cache-static-ttl"))
ctx.cfg.cache_static_ttl = atoi(value);
else if (!strcmp(name, "cache-dynamic-ttl"))
ctx.cfg.cache_dynamic_ttl = atoi(value);
else if (!strcmp(name, "about-filter"))
ctx.cfg.about_filter = new_filter(value, 0);
else if (!strcmp(name, "commit-filter"))
ctx.cfg.commit_filter = new_filter(value, 0);
else if (!strcmp(name, "embedded"))
ctx.cfg.embedded = atoi(value);
else if (!strcmp(name, "max-message-length"))
ctx.cfg.max_msg_len = atoi(value);
else if (!strcmp(name, "max-repodesc-length"))
ctx.cfg.max_repodesc_len = atoi(value);
else if (!strcmp(name, "max-blob-size"))
ctx.cfg.max_blob_size = atoi(value);
else if (!strcmp(name, "max-repo-count"))
ctx.cfg.max_repo_count = atoi(value);
else if (!strcmp(name, "max-commit-count"))
ctx.cfg.max_commit_count = atoi(value);
else if (!strcmp(name, "scan-path"))
if (!ctx.cfg.nocache && ctx.cfg.cache_size)
process_cached_repolist(value);
else
scan_tree(value, repo_config);
else if (!strcmp(name, "source-filter"))
ctx.cfg.source_filter = new_filter(value, 1);
else if (!strcmp(name, "summary-log"))
ctx.cfg.summary_log = atoi(value);
else if (!strcmp(name, "summary-branches"))
ctx.cfg.summary_branches = atoi(value);
else if (!strcmp(name, "summary-tags"))
ctx.cfg.summary_tags = atoi(value);
else if (!strcmp(name, "side-by-side-diffs"))
ctx.cfg.ssdiff = atoi(value);
else if (!strcmp(name, "agefile"))
ctx.cfg.agefile = xstrdup(value);
else if (!strcmp(name, "renamelimit"))
ctx.cfg.renamelimit = atoi(value);
else if (!strcmp(name, "robots"))
ctx.cfg.robots = xstrdup(value);
else if (!strcmp(name, "clone-prefix"))
ctx.cfg.clone_prefix = xstrdup(value);
else if (!strcmp(name, "local-time"))
ctx.cfg.local_time = atoi(value);
else if (!prefixcmp(name, "mimetype."))
add_mimetype(name + 9, value);
else if (!strcmp(name, "include"))
parse_configfile(value, config_cb);
}
static void querystring_cb(const char *name, const char *value)
{
if (!value)
value = "";
if (!strcmp(name,"r")) {
ctx.qry.repo = xstrdup(value);
ctx.repo = cgit_get_repoinfo(value);
} else if (!strcmp(name, "p")) {
ctx.qry.page = xstrdup(value);
} else if (!strcmp(name, "url")) {
if (*value == '/')
value++;
ctx.qry.url = xstrdup(value);
cgit_parse_url(value);
} else if (!strcmp(name, "qt")) {
ctx.qry.grep = xstrdup(value);
} else if (!strcmp(name, "q")) {
ctx.qry.search = xstrdup(value);
} else if (!strcmp(name, "h")) {
ctx.qry.head = xstrdup(value);
ctx.qry.has_symref = 1;
} else if (!strcmp(name, "id")) {
ctx.qry.sha1 = xstrdup(value);
ctx.qry.has_sha1 = 1;
} else if (!strcmp(name, "id2")) {
ctx.qry.sha2 = xstrdup(value);
ctx.qry.has_sha1 = 1;
} else if (!strcmp(name, "ofs")) {
ctx.qry.ofs = atoi(value);
} else if (!strcmp(name, "path")) {
ctx.qry.path = trim_end(value, '/');
} else if (!strcmp(name, "name")) {
ctx.qry.name = xstrdup(value);
} else if (!strcmp(name, "mimetype")) {
ctx.qry.mimetype = xstrdup(value);
} else if (!strcmp(name, "s")){
ctx.qry.sort = xstrdup(value);
} else if (!strcmp(name, "showmsg")) {
ctx.qry.showmsg = atoi(value);
} else if (!strcmp(name, "period")) {
ctx.qry.period = xstrdup(value);
} else if (!strcmp(name, "ss")) {
ctx.qry.ssdiff = atoi(value);
}
}
char *xstrdupn(const char *str)
{
return (str ? xstrdup(str) : NULL);
}
static void prepare_context(struct cgit_context *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->cfg.agefile = "info/web/last-modified";
ctx->cfg.nocache = 0;
ctx->cfg.cache_size = 0;
ctx->cfg.cache_dynamic_ttl = 5;
ctx->cfg.cache_max_create_time = 5;
ctx->cfg.cache_repo_ttl = 5;
ctx->cfg.cache_root = CGIT_CACHE_ROOT;
ctx->cfg.cache_root_ttl = 5;
ctx->cfg.cache_scanrc_ttl = 15;
ctx->cfg.cache_static_ttl = -1;
ctx->cfg.css = "/cgit.css";
ctx->cfg.logo = "/cgit.png";
ctx->cfg.local_time = 0;
ctx->cfg.enable_tree_linenumbers = 1;
ctx->cfg.max_repo_count = 50;
ctx->cfg.max_commit_count = 50;
ctx->cfg.max_lock_attempts = 5;
ctx->cfg.max_msg_len = 80;
ctx->cfg.max_repodesc_len = 80;
ctx->cfg.max_blob_size = 0;
ctx->cfg.max_stats = 0;
ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
ctx->cfg.renamelimit = -1;
ctx->cfg.robots = "index, nofollow";
ctx->cfg.root_title = "Git repository browser";
ctx->cfg.root_desc = "a fast webinterface for the git dscm";
ctx->cfg.script_name = CGIT_SCRIPT_NAME;
ctx->cfg.section = "";
ctx->cfg.summary_branches = 10;
ctx->cfg.summary_log = 10;
ctx->cfg.summary_tags = 10;
ctx->cfg.ssdiff = 0;
ctx->env.cgit_config = xstrdupn(getenv("CGIT_CONFIG"));
ctx->env.http_host = xstrdupn(getenv("HTTP_HOST"));
ctx->env.https = xstrdupn(getenv("HTTPS"));
ctx->env.no_http = xstrdupn(getenv("NO_HTTP"));
ctx->env.path_info = xstrdupn(getenv("PATH_INFO"));
ctx->env.query_string = xstrdupn(getenv("QUERY_STRING"));
ctx->env.request_method = xstrdupn(getenv("REQUEST_METHOD"));
ctx->env.script_name = xstrdupn(getenv("SCRIPT_NAME"));
ctx->env.server_name = xstrdupn(getenv("SERVER_NAME"));
ctx->env.server_port = xstrdupn(getenv("SERVER_PORT"));
ctx->page.mimetype = "text/html";
ctx->page.charset = PAGE_ENCODING;
ctx->page.filename = NULL;
ctx->page.size = 0;
ctx->page.modified = time(NULL);
ctx->page.expires = ctx->page.modified;
ctx->page.etag = NULL;
memset(&ctx->cfg.mimetypes, 0, sizeof(struct string_list));
if (ctx->env.script_name)
ctx->cfg.script_name = ctx->env.script_name;
if (ctx->env.query_string)
ctx->qry.raw = ctx->env.query_string;
if (!ctx->env.cgit_config)
ctx->env.cgit_config = CGIT_CONFIG;
}
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 cgit_repo *repo)
{
struct refmatch info;
char *ref;
info.req_ref = repo->defbranch;
info.first_ref = NULL;
info.match = 0;
for_each_branch_ref(find_current_ref, &info);
if (info.match)
ref = info.req_ref;
else
ref = info.first_ref;
if (ref)
ref = xstrdup(ref);
return ref;
}
static int prepare_repo_cmd(struct cgit_context *ctx)
{
char *tmp;
unsigned char sha1[20];
int nongit = 0;
setenv("GIT_DIR", ctx->repo->path, 1);
setup_git_directory_gently(&nongit);
if (nongit) {
ctx->page.title = fmt("%s - %s", ctx->cfg.root_title,
"config error");
tmp = fmt("Not a git repository: '%s'", ctx->repo->path);
ctx->repo = NULL;
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
cgit_print_error(tmp);
cgit_print_docend();
return 1;
}
ctx->page.title = fmt("%s - %s", ctx->repo->name, ctx->repo->desc);
if (!ctx->qry.head) {
ctx->qry.nohead = 1;
ctx->qry.head = find_default_branch(ctx->repo);
ctx->repo->defbranch = ctx->qry.head;
}
if (!ctx->qry.head) {
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
cgit_print_error("Repository seems to be empty");
cgit_print_docend();
return 1;
}
if (get_sha1(ctx->qry.head, sha1)) {
tmp = xstrdup(ctx->qry.head);
ctx->qry.head = ctx->repo->defbranch;
ctx->page.status = 404;
ctx->page.statusmsg = "not found";
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
cgit_print_error(fmt("Invalid branch: %s", tmp));
cgit_print_docend();
return 1;
}
return 0;
}
static void process_request(void *cbdata)
{
struct cgit_context *ctx = cbdata;
struct cgit_cmd *cmd;
cmd = cgit_get_cmd(ctx);
if (!cmd) {
ctx->page.title = "cgit error";
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
cgit_print_error("Invalid request");
cgit_print_docend();
return;
}
/* If cmd->want_vpath is set, assume ctx->qry.path contains a "virtual"
* in-project path limit to be made available at ctx->qry.vpath.
* Otherwise, no path limit is in effect (ctx->qry.vpath = NULL).
*/
ctx->qry.vpath = cmd->want_vpath ? ctx->qry.path : NULL;
if (cmd->want_repo && !ctx->repo) {
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
cgit_print_error(fmt("No repository selected"));
cgit_print_docend();
return;
}
if (ctx->repo && prepare_repo_cmd(ctx))
return;
if (cmd->want_layout) {
cgit_print_http_headers(ctx);
cgit_print_docstart(ctx);
cgit_print_pageheader(ctx);
}
cmd->fn(ctx);
if (cmd->want_layout)
cgit_print_docend();
}
int cmp_repos(const void *a, const void *b)
{
const struct cgit_repo *ra = a, *rb = b;
return strcmp(ra->url, rb->url);
}
char *build_snapshot_setting(int bitmap)
{
const struct cgit_snapshot_format *f;
char *result = xstrdup("");
char *tmp;
int len;
for (f = cgit_snapshot_formats; f->suffix; f++) {
if (f->bit & bitmap) {
tmp = result;
result = xstrdup(fmt("%s%s ", tmp, f->suffix));
free(tmp);
}
}
len = strlen(result);
if (len)
result[len - 1] = '\0';
return result;
}
char *get_first_line(char *txt)
{
char *t = xstrdup(txt);
char *p = strchr(t, '\n');
if (p)
*p = '\0';
return t;
}
void print_repo(FILE *f, struct cgit_repo *repo)
{
fprintf(f, "repo.url=%s\n", repo->url);
fprintf(f, "repo.name=%s\n", repo->name);
fprintf(f, "repo.path=%s\n", repo->path);
if (repo->owner)
fprintf(f, "repo.owner=%s\n", repo->owner);
if (repo->desc) {
char *tmp = get_first_line(repo->desc);
fprintf(f, "repo.desc=%s\n", tmp);
free(tmp);
}
if (repo->readme)
fprintf(f, "repo.readme=%s\n", repo->readme);
if (repo->defbranch)
fprintf(f, "repo.defbranch=%s\n", repo->defbranch);
if (repo->module_link)
fprintf(f, "repo.module-link=%s\n", repo->module_link);
if (repo->section)
fprintf(f, "repo.section=%s\n", repo->section);
if (repo->clone_url)
fprintf(f, "repo.clone-url=%s\n", repo->clone_url);
fprintf(f, "repo.enable-log-filecount=%d\n",
repo->enable_log_filecount);
fprintf(f, "repo.enable-log-linecount=%d\n",
repo->enable_log_linecount);
if (repo->about_filter && repo->about_filter != ctx.cfg.about_filter)
fprintf(f, "repo.about-filter=%s\n", repo->about_filter->cmd);
if (repo->commit_filter && repo->commit_filter != ctx.cfg.commit_filter)
fprintf(f, "repo.commit-filter=%s\n", repo->commit_filter->cmd);
if (repo->source_filter && repo->source_filter != ctx.cfg.source_filter)
fprintf(f, "repo.source-filter=%s\n", repo->source_filter->cmd);
if (repo->snapshots != ctx.cfg.snapshots) {
char *tmp = build_snapshot_setting(repo->snapshots);
fprintf(f, "repo.snapshots=%s\n", tmp);
free(tmp);
}
if (repo->max_stats != ctx.cfg.max_stats)
fprintf(f, "repo.max-stats=%s\n",
cgit_find_stats_periodname(repo->max_stats));
fprintf(f, "\n");
}
void print_repolist(FILE *f, struct cgit_repolist *list, int start)
{
int i;
for(i = start; i < list->count; i++)
print_repo(f, &list->repos[i]);
}
/* Scan 'path' for git repositories, save the resulting repolist in 'cached_rc'
* and return 0 on success.
*/
static int generate_cached_repolist(const char *path, const char *cached_rc)
{
char *locked_rc;
int idx;
FILE *f;
locked_rc = xstrdup(fmt("%s.lock", cached_rc));
f = fopen(locked_rc, "wx");
if (!f) {
/* Inform about the error unless the lockfile already existed,
* since that only means we've got concurrent requests.
*/
if (errno != EEXIST)
fprintf(stderr, "[cgit] Error opening %s: %s (%d)\n",
locked_rc, strerror(errno), errno);
return errno;
}
idx = cgit_repolist.count;
scan_tree(path, repo_config);
print_repolist(f, &cgit_repolist, idx);
if (rename(locked_rc, cached_rc))
fprintf(stderr, "[cgit] Error renaming %s to %s: %s (%d)\n",
locked_rc, cached_rc, strerror(errno), errno);
fclose(f);
return 0;
}
static void process_cached_repolist(const char *path)
{
struct stat st;
char *cached_rc;
time_t age;
cached_rc = xstrdup(fmt("%s/rc-%8x", ctx.cfg.cache_root,
hash_str(path)));
if (stat(cached_rc, &st)) {
/* Nothing is cached, we need to scan without forking. And
* if we fail to generate a cached repolist, we need to
* invoke scan_tree manually.
*/
if (generate_cached_repolist(path, cached_rc))
scan_tree(path, repo_config);
return;
}
parse_configfile(cached_rc, config_cb);
/* If the cached configfile hasn't expired, lets exit now */
age = time(NULL) - st.st_mtime;
if (age <= (ctx.cfg.cache_scanrc_ttl * 60))
return;
/* The cached repolist has been parsed, but it was old. So lets
* rescan the specified path and generate a new cached repolist
* in a child-process to avoid latency for the current request.
*/
if (fork())
return;
exit(generate_cached_repolist(path, cached_rc));
}
static void cgit_parse_args(int argc, const char **argv)
{
int i;
int scan = 0;
for (i = 1; i < argc; i++) {
if (!strncmp(argv[i], "--cache=", 8)) {
ctx.cfg.cache_root = xstrdup(argv[i]+8);
}
if (!strcmp(argv[i], "--nocache")) {
ctx.cfg.nocache = 1;
}
if (!strcmp(argv[i], "--nohttp")) {
ctx.env.no_http = "1";
}
if (!strncmp(argv[i], "--query=", 8)) {
ctx.qry.raw = xstrdup(argv[i]+8);
}
if (!strncmp(argv[i], "--repo=", 7)) {
ctx.qry.repo = xstrdup(argv[i]+7);
}
if (!strncmp(argv[i], "--page=", 7)) {
ctx.qry.page = xstrdup(argv[i]+7);
}
if (!strncmp(argv[i], "--head=", 7)) {
ctx.qry.head = xstrdup(argv[i]+7);
ctx.qry.has_symref = 1;
}
if (!strncmp(argv[i], "--sha1=", 7)) {
ctx.qry.sha1 = xstrdup(argv[i]+7);
ctx.qry.has_sha1 = 1;
}
if (!strncmp(argv[i], "--ofs=", 6)) {
ctx.qry.ofs = atoi(argv[i]+6);
}
if (!strncmp(argv[i], "--scan-tree=", 12) ||
!strncmp(argv[i], "--scan-path=", 12)) {
/* HACK: the global snapshot bitmask defines the
* set of allowed snapshot formats, but the config
* file hasn't been parsed yet so the mask is
* currently 0. By setting all bits high before
* scanning we make sure that any in-repo cgitrc
* snapshot setting is respected by scan_tree().
* BTW: we assume that there'll never be more than
* 255 different snapshot formats supported by cgit...
*/
ctx.cfg.snapshots = 0xFF;
scan++;
scan_tree(argv[i] + 12, repo_config);
}
}
if (scan) {
qsort(cgit_repolist.repos, cgit_repolist.count,
sizeof(struct cgit_repo), cmp_repos);
print_repolist(stdout, &cgit_repolist, 0);
exit(0);
}
}
static int calc_ttl()
{
if (!ctx.repo)
return ctx.cfg.cache_root_ttl;
if (!ctx.qry.page)
return ctx.cfg.cache_repo_ttl;
if (ctx.qry.has_symref)
return ctx.cfg.cache_dynamic_ttl;
if (ctx.qry.has_sha1)
return ctx.cfg.cache_static_ttl;
return ctx.cfg.cache_repo_ttl;
}
int main(int argc, const char **argv)
{
const char *path;
char *qry;
int err, ttl;
prepare_context(&ctx);
cgit_repolist.length = 0;
cgit_repolist.count = 0;
cgit_repolist.repos = NULL;
cgit_parse_args(argc, argv);
parse_configfile(ctx.env.cgit_config, config_cb);
ctx.repo = NULL;
http_parse_querystring(ctx.qry.raw, querystring_cb);
/* If virtual-root isn't specified in cgitrc, lets pretend
* that virtual-root equals SCRIPT_NAME.
*/
if (!ctx.cfg.virtual_root)
ctx.cfg.virtual_root = ctx.cfg.script_name;
/* If no url parameter is specified on the querystring, lets
* use PATH_INFO as url. This allows cgit to work with virtual
* urls without the need for rewriterules in the webserver (as
* long as PATH_INFO is included in the cache lookup key).
*/
path = ctx.env.path_info;
if (!ctx.qry.url && path) {
if (path[0] == '/')
path++;
ctx.qry.url = xstrdup(path);
if (ctx.qry.raw) {
qry = ctx.qry.raw;
ctx.qry.raw = xstrdup(fmt("%s?%s", path, qry));
free(qry);
} else
ctx.qry.raw = xstrdup(ctx.qry.url);
cgit_parse_url(ctx.qry.url);
}
ttl = calc_ttl();
ctx.page.expires += ttl*60;
if (ctx.env.request_method && !strcmp(ctx.env.request_method, "HEAD"))
ctx.cfg.nocache = 1;
if (ctx.cfg.nocache)
ctx.cfg.cache_size = 0;
err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
ctx.qry.raw, ttl, process_request, &ctx);
if (err)
cgit_print_error(fmt("Error processing page: %s (%d)",
strerror(err), err));
return err;
}