1 files changed, 4 insertions, 0 deletions
diff --git a/ui-shared.c b/ui-shared.c
index 72a7b44..4944dfd 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1,537 +1,541 @@
 /* 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", "Feb", "Mar", "Apr", "May", "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)
 {
        char *tmp;
        char *delim;
        if (cgit_virtual_root) {
                tmp = fmt("%s/%s/%s/%s", cgit_virtual_root, reponame,
                          pagename, (filename ? filename:""));
                delim = "?";
        } else {
                tmp = fmt("?url=%s/%s/%s", reponame, pagename,
                          (filename ? filename : ""));
                delim = "&";
        }
        if (query)
                tmp = fmt("%s%s%s", tmp, delim, query);
        return tmp;
 }
 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 *grep, char *pattern)
 {
        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 (grep && pattern) {
                html(delim);
                html("qt=");
                html_attr(grep);
                delim = "&";
                html(delim);
                html("q=");
                html_attr(pattern);
        }
        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;
+        if (!secs)
+                return;
        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;
+        if (!t)
+                return;
        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, char *page)
 {
        char *url;
        if (!cgit_virtual_root) {
                url = fmt("%s/%s", cgit_query_repo, page);
                if (cgit_query_path)
                        url = fmt("%s/%s", url, cgit_query_path);
                html_hidden("url", url);
        }
        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, NULL, NULL,
                              0, NULL, NULL);
                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, NULL);
                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, cgit_query_page);
                html("<table class='grid'><tr><td id='branch-dropdown-cell'>");
                html("<select name='h' onchange='this.form.submit();'>\n");
                for_each_branch_ref(print_branch_option, cgit_query_head);
                html("</select>\n");
                html("</td><td>");
                html("<noscript><input type='submit' id='switch-btn' value='..'></noscript>\n");
                html("</td></tr></table>");
                html("</form>\n");
                html("<p>\n<h1>search</h1>\n");
                html("<form method='get' action='");
                if (cgit_virtual_root)
                        html_attr(cgit_fileurl(cgit_query_repo, "log",
                                               cgit_query_path, NULL));
                html("'>\n");
                add_hidden_formfields(1, 0, "log");
                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: */