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#ifndef CGIT_H
#define CGIT_H

#include "git.h"
#include <openssl/sha.h>
#include <ctype.h>
#include <sched.h>

typedef void (*configfn)(const char *name, const char *value);

struct cacheitem {
	char *name;
	struct stat st;
	int ttl;
	int fd;
};

extern const char cgit_version[];

extern char *cgit_root;
extern char *cgit_root_title;
extern char *cgit_css;
extern char *cgit_logo;
extern char *cgit_logo_link;
extern char *cgit_virtual_root;
extern char *cgit_cache_root;

extern int cgit_max_lock_attempts;
extern int cgit_cache_root_ttl;
extern int cgit_cache_repo_ttl;
extern int cgit_cache_dynamic_ttl;
extern int cgit_cache_static_ttl;
extern int cgit_cache_max_create_time;

extern char *cgit_repo_name;
extern char *cgit_repo_desc;
extern char *cgit_repo_owner;

extern int cgit_query_has_symref;
extern int cgit_query_has_sha1;

extern char *cgit_querystring;
extern char *cgit_query_repo;
extern char *cgit_query_page;
extern char *cgit_query_head;
extern char *cgit_query_sha1;

extern int htmlfd;

extern void cgit_global_config_cb(const char *name, const char *value);
extern void cgit_repo_config_cb(const char *name, const char *value);
extern void cgit_querystring_cb(const char *name, const char *value);

extern char *fmt(const char *format,...);

extern void html(const char *txt);
extern void htmlf(const char *format,...);
extern void html_txt(char *txt);
externpre { 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 */
/* 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", "Fri", "Sat"};
	static char month[][4] =
		{"Jan", "
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-03-31 15:49:17 +0000
">, "Jun", "Jul", "Aug", "Sep", "Oct", "Now", "Dec"}; struct tm *tm = gmtime(&t); return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday], tm->tm_mday, month[tm->tm_mon], 1900+tm->tm_year, tm->tm_hour, tm->tm_min, tm->tm_sec); } static long ttl_seconds(long ttl) { if (ttl<0) return 60 * 60 * 24 * 365; else return ttl * 60; } void cgit_print_error(char *msg) { html("<div class='error'>"); html_txt(msg); html("</div>\n"); } char *cgit_rooturl() { if (cgit_virtual_root) return fmt("%s/", cgit_virtual_root); else return cgit_script_name; } char *cgit_repourl(const char *reponame) { if (cgit_virtual_root) { return fmt("%s/%s/", cgit_virtual_root, reponame); } else { return fmt("?r=%s", reponame); } } char *cgit_fileurl(const char *reponame, const char *pagename, const char *filename, const char *query) { if (cgit_virtual_root) { if (query) return fmt("%s/%s/%s/%s?%s", cgit_virtual_root, reponame, pagename, filename?filename:"", query); else return fmt("%s/%s/%s/", cgit_virtual_root, reponame, pagename); } else { if (query) return fmt("?r=%s&amp;p=%s&amp;%s", reponame, pagename, query); else return fmt("?r=%s&amp;p=%s", reponame, pagename); } } char *cgit_pageurl(const char *reponame, const char *pagename, const char *query) { return cgit_fileurl(reponame,pagename,0,query); } const char *cgit_repobasename(const char *reponame) { /* I assume we don't need to store more than one repo basename */ static char rvbuf[1024]; int p; const char *rv; strncpy(rvbuf,reponame,sizeof(rvbuf)); if(rvbuf[sizeof(rvbuf)-1]) die("cgit_repobasename: truncated repository name '%s'", reponame); p = strlen(rvbuf)-1; /* strip trailing slashes */ while(p && rvbuf[p]=='/') rvbuf[p--]=0; /* strip trailing .git */ if(p>=3 && !strncmp(&rvbuf[p-3],".git",4)) { p -= 3; rvbuf[p--] = 0; } /* strip more trailing slashes if any */ while( p && rvbuf[p]=='/') rvbuf[p--]=0; /* find last slash in the remaining string */ rv = strrchr(rvbuf,'/'); if(rv) return ++rv; return rvbuf; } char *cgit_currurl() { if (!cgit_virtual_root) return cgit_script_name; else if (cgit_query_page) return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page); else if (cgit_query_repo) return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo); else return fmt("%s/", cgit_virtual_root); } static char *repolink(char *title, char *class, char *page, char *head, char *path) { char *delim = "?"; html("<a"); if (title) { html(" title='"); html_attr(title); html("'"); } if (class) { html(" class='"); html_attr(class); html("'"); } html(" href='"); if (cgit_virtual_root) { html_attr(cgit_virtual_root); if (cgit_virtual_root[strlen(cgit_virtual_root) - 1] != '/') html("/"); html_attr(cgit_repo->url); if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/') html("/"); if (page) { html(page); html("/"); if (path) html_attr(path); } } else { html(cgit_script_name); html("?url="); html_attr(cgit_repo->url); if (cgit_repo->url[strlen(cgit_repo->url) - 1] != '/') html("/"); if (page) { html(page); html("/"); if (path) html_attr(path); } delim = "&amp;"; } if (head && strcmp(head, cgit_repo->defbranch)) { html(delim); html("h="); html_attr(head); delim = "&amp;"; } return fmt("%s", delim); } static void reporevlink(char *page, char *name, char *title, char *class, char *head, char *rev, char *path) { char *delim; delim = repolink(title, class, page, head, path); if (rev && strcmp(rev, cgit_query_head)) { html(delim); html("id="); html_attr(rev); } html("'>"); html_txt(name); html("</a>"); } void cgit_tree_link(char *name, char *title, char *class, char *head, char *rev, char *path) { reporevlink("tree", name, title, class, head, rev, path); } void cgit_log_link(char *name, char *title, char *class, char *head, char *rev, char *path, int ofs) { char *delim; delim = repolink(title, class, "log", head, path); if (rev && strcmp(rev, cgit_query_head)) { html(delim); html("id="); html_attr(rev); delim = "&"; } if (ofs > 0) { html(delim); html("ofs="); htmlf("%d", ofs); } html("'>"); html_txt(name); html("</a>"); } void cgit_commit_link(char *name, char *title, char *class, char *head, char *rev) { if (strlen(name) > cgit_max_msg_len && cgit_max_msg_len >= 15) { name[cgit_max_msg_len] = '\0'; name[cgit_max_msg_len - 1] = '.'; name[cgit_max_msg_len - 2] = '.'; name[cgit_max_msg_len - 3] = '.'; } reporevlink("commit", name, title, class, head, rev, NULL); } void cgit_refs_link(char *name, char *title, char *class, char *head, char *rev, char *path) { reporevlink("refs", name, title, class, head, rev, path); } void cgit_snapshot_link(char *name, char *title, char *class, char *head, char *rev, char *archivename) { reporevlink("snapshot", name, title, class, head, rev, archivename); } void cgit_diff_link(char *name, char *title, char *class, char *head, char *new_rev, char *old_rev, char *path) { char *delim; delim = repolink(title, class, "diff", head, path); if (new_rev && strcmp(new_rev, cgit_query_head)) { html(delim); html("id="); html_attr(new_rev); delim = "&amp;"; } if (old_rev) { html(delim); html("id2="); html_attr(old_rev); } html("'>"); html_txt(name); html("</a>"); } void cgit_object_link(struct object *obj) { char *page, *arg, *url; if (obj->type == OBJ_COMMIT) { cgit_commit_link(fmt("commit %s", sha1_to_hex(obj->sha1)), NULL, NULL, cgit_query_head, sha1_to_hex(obj->sha1)); return; } else if (obj->type == OBJ_TREE) { page = "tree"; arg = "id"; } else if (obj->type == OBJ_TAG) { page = "tag"; arg = "id"; } else { page = "blob"; arg = "id"; } url = cgit_pageurl(cgit_query_repo, page, fmt("%s=%s", arg, sha1_to_hex(obj->sha1))); html_link_open(url, NULL, NULL); htmlf("%s %s", typename(obj->type), sha1_to_hex(obj->sha1)); html_link_close(); } void cgit_print_date(time_t secs, char *format) { char buf[64]; struct tm *time; time = gmtime(&secs); strftime(buf, sizeof(buf)-1, format, time); html_txt(buf); } void cgit_print_age(time_t t, time_t max_relative, char *format) { time_t now, secs; time(&now); secs = now - t; if (secs > max_relative && max_relative >= 0) { cgit_print_date(t, format); return; } if (secs < TM_HOUR * 2) { htmlf("<span class='age-mins'>%.0f min.</span>", secs * 1.0 / TM_MIN); return; } if (secs < TM_DAY * 2) { htmlf("<span class='age-hours'>%.0f hours</span>", secs * 1.0 / TM_HOUR); return; } if (secs < TM_WEEK * 2) { htmlf("<span class='age-days'>%.0f days</span>", secs * 1.0 / TM_DAY); return; } if (secs < TM_MONTH * 2) { htmlf("<span class='age-weeks'>%.0f weeks</span>", secs * 1.0 / TM_WEEK); return; } if (secs < TM_YEAR * 2) { htmlf("<span class='age-months'>%.0f months</span>", secs * 1.0 / TM_MONTH); return; } htmlf("<span class='age-years'>%.0f years</span>", secs * 1.0 / TM_YEAR); } void cgit_print_docstart(char *title, struct cacheitem *item) { html("Content-Type: text/html; charset=utf-8\n"); htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime)); htmlf("Expires: %s\n", http_date(item->st.st_mtime + ttl_seconds(item->ttl))); html("\n"); html(cgit_doctype); html("<html>\n"); html("<head>\n"); html("<title>"); html_txt(title); html("</title>\n"); htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version); html("<link rel='stylesheet' type='text/css' href='"); html_attr(cgit_css); html("'/>\n"); html("</head>\n"); html("<body>\n"); } void cgit_print_docend() { html("</td>\n</tr>\n<table>\n</body>\n</html>\n"); } int print_branch_option(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { char *name = (char *)refname; html_option(name, name, cgit_query_head); return 0; } int print_archive_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data) { struct tag *tag; struct taginfo *info; struct object *obj; char buf[256], *url; unsigned char fileid[20]; int *header = (int *)cb_data; if (prefixcmp(refname, "refs/archives")) return 0; strncpy(buf, refname+14, sizeof(buf)); obj = parse_object(sha1); if (!obj) return 1; if (obj->type == OBJ_TAG) { tag = lookup_tag(sha1); if (!tag || parse_tag(tag) || !(info = cgit_parse_tag(tag))) return 0; hashcpy(fileid, tag->tagged->sha1); } else if (obj->type != OBJ_BLOB) { return 0; } else { hashcpy(fileid, sha1); } if (!*header) { html("<p><h1>download</h1>"); *header = 1; } url = cgit_pageurl(cgit_query_repo, "blob", fmt("id=%s&amp;path=%s", sha1_to_hex(fileid), buf)); html_link_open(url, NULL, "menu"); html_txt(strlpart(buf, 20)); html_link_close(); return 0; } void add_hidden_formfields(int incl_head, int incl_search) { if (!cgit_virtual_root) { if (cgit_query_repo) html_hidden("r", cgit_query_repo); if (cgit_query_page) html_hidden("p", cgit_query_page); } if (incl_head && strcmp(cgit_query_head, cgit_repo->defbranch)) html_hidden("h", cgit_query_head); if (cgit_query_sha1) html_hidden("id", cgit_query_sha1); if (cgit_query_sha2) html_hidden("id2", cgit_query_sha2); if (incl_search) { if (cgit_query_grep) html_hidden("qt", cgit_query_grep); if (cgit_query_search) html_hidden("q", cgit_query_search); } } void cgit_print_pageheader(char *title, int show_search) { static const char *default_info = "This is cgit, a fast webinterface for git repositories"; int header = 0; html("<div id='sidebar'>\n"); html("<a href='"); html_attr(cgit_rooturl()); htmlf("'><div id='logo'><img src='%s' alt='cgit'/></div></a>\n", cgit_logo); html("<div class='infobox'>"); if (cgit_query_repo) { html("<h1>"); html_txt(strrpart(cgit_repo->name, 20)); html("</h1>\n"); html_txt(cgit_repo->desc); if (cgit_repo->owner) { html("<p>\n<h1>owner</h1>\n"); html_txt(cgit_repo->owner); } html("<p>\n<h1>navigate</h1>\n"); reporevlink(NULL, "summary", NULL, "menu", cgit_query_head, NULL, NULL); cgit_log_link("log", NULL, "menu", cgit_query_head, cgit_query_sha1, cgit_query_path, 0); cgit_tree_link("tree", NULL, "menu", cgit_query_head, cgit_query_sha1, NULL); cgit_commit_link("commit", NULL, "menu", cgit_query_head, cgit_query_sha1); cgit_diff_link("diff", NULL, "menu", cgit_query_head, cgit_query_sha1, cgit_query_sha2, cgit_query_path); for_each_ref(print_archive_ref, &header); html("<p>\n<h1>branch</h1>\n"); html("<form method='get' action=''>\n"); add_hidden_formfields(0, 1); html("<select name='h' onchange='this.form.submit();'>\n"); for_each_branch_ref(print_branch_option, cgit_query_head); html("</select>\n"); html("</form>\n"); html("<p>\n<h1>search</h1>\n"); html("<form method='get' action='"); html_attr(cgit_pageurl(cgit_query_repo, "log", NULL)); html("'>\n"); add_hidden_formfields(1, 0); html("<select name='qt'>\n"); html_option("grep", "log msg", cgit_query_grep); html_option("author", "author", cgit_query_grep); html_option("committer", "committer", cgit_query_grep); html("</select>\n"); html("<input class='txt' type='text' name='q' value='"); html_attr(cgit_query_search); html("'/>\n"); html("</form>\n"); } else { if (!cgit_index_info || html_include(cgit_index_info)) html(default_info); } html("</div>\n"); html("</div>\n<table class='grid'><tr><td id='content'>\n"); } void cgit_print_snapshot_start(const char *mimetype, const char *filename, struct cacheitem *item) { htmlf("Content-Type: %s\n", mimetype); htmlf("Content-Disposition: inline; filename=\"%s\"\n", filename); htmlf("Last-Modified: %s\n", http_date(item->st.st_mtime)); htmlf("Expires: %s\n", http_date(item->st.st_mtime + ttl_seconds(item->ttl))); html("\n"); } /* vim:set sw=8: */