1 files changed, 2 insertions, 2 deletions
diff --git a/ui-shared.c b/ui-shared.c
index 08ea003..8827fff 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1,750 +1,750 @@
 /* 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"
 #include "cmd.h"
 #include "html.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", "Nov", "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);
 }
 void cgit_print_error(char *msg)
 {
        html("<div class='error'>");
        html_txt(msg);
        html("</div>\n");
 }
 char *cgit_httpscheme()
 {
        if (ctx.env.https && !strcmp(ctx.env.https, "on"))
                return "https://";
        else
                return "http://";
 }
 char *cgit_hosturl()
 {
        if (ctx.env.http_host)
                return ctx.env.http_host;
        if (!ctx.env.server_name)
                return NULL;
        if (!ctx.env.server_port || atoi(ctx.env.server_port) == 80)
                return ctx.env.server_name;
        return xstrdup(fmt("%s:%s", ctx.env.server_name, ctx.env.server_port));
 }
 char *cgit_rooturl()
 {
        if (ctx.cfg.virtual_root)
                return fmt("%s/", ctx.cfg.virtual_root);
        else
                return ctx.cfg.script_name;
 }
 char *cgit_repourl(const char *reponame)
 {
        if (ctx.cfg.virtual_root) {
                return fmt("%s/%s/", ctx.cfg.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 (ctx.cfg.virtual_root) {
                tmp = fmt("%s/%s/%s/%s", ctx.cfg.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 (!ctx.cfg.virtual_root)
                return ctx.cfg.script_name;
        else if (ctx.qry.page)
                return fmt("%s/%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo, ctx.qry.page);
        else if (ctx.qry.repo)
                return fmt("%s/%s/", ctx.cfg.virtual_root, ctx.qry.repo);
        else
                return fmt("%s/", ctx.cfg.virtual_root);
 }
 static void site_url(char *page, char *search, int ofs)
 {
        char *delim = "?";
        if (ctx.cfg.virtual_root) {
                html_attr(ctx.cfg.virtual_root);
                if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
                        html("/");
        } else
                html(ctx.cfg.script_name);
        if (page) {
                htmlf("?p=%s", page);
                delim = "&";
        }
        if (search) {
                html(delim);
                html("q=");
                html_attr(search);
                delim = "&";
        }
        if (ofs) {
                html(delim);
                htmlf("ofs=%d", ofs);
        }
 }
 static void site_link(char *page, char *name, char *title, char *class,
                      char *search, int ofs)
 {
        html("<a");
        if (title) {
                html(" title='");
                html_attr(title);
                html("'");
        }
        if (class) {
                html(" class='");
                html_attr(class);
                html("'");
        }
        html(" href='");
        site_url(page, search, ofs);
        html("'>");
        html_txt(name);
        html("</a>");
 }
 void cgit_index_link(char *name, char *title, char *class, char *pattern,
                     int ofs)
 {
        site_link(NULL, name, title, class, pattern, ofs);
 }
 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 (ctx.cfg.virtual_root) {
                html_url_path(ctx.cfg.virtual_root);
                if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
                        html("/");
                html_url_path(ctx.repo->url);
                if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
                        html("/");
                if (page) {
                        html_url_path(page);
                        html("/");
                        if (path)
                                html_url_path(path);
                }
        } else {
                html(ctx.cfg.script_name);
                html("?url=");
                html_url_arg(ctx.repo->url);
                if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
                        html("/");
                if (page) {
                        html_url_arg(page);
                        html("/");
                        if (path)
                                html_url_arg(path);
                }
                delim = "&amp;";
        }
        if (head && strcmp(head, ctx.repo->defbranch)) {
                html(delim);
                html("h=");
                html_url_arg(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, ctx.qry.head)) {
+        if (rev && ctx.qry.head != NULL && strcmp(rev, ctx.qry.head)) {
                html(delim);
                html("id=");
                html_url_arg(rev);
        }
        html("'>");
        html_txt(name);
        html("</a>");
 }
 void cgit_summary_link(char *name, char *title, char *class, char *head)
 {
        reporevlink(NULL, name, title, class, head, NULL, NULL);
 }
 void cgit_tag_link(char *name, char *title, char *class, char *head,
                   char *rev)
 {
        reporevlink("tag", name, title, class, head, rev, NULL);
 }
 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_plain_link(char *name, char *title, char *class, char *head,
                     char *rev, char *path)
 {
        reporevlink("plain", 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,
                   int showmsg)
 {
        char *delim;
        delim = repolink(title, class, "log", head, path);
        if (rev && strcmp(rev, ctx.qry.head)) {
                html(delim);
                html("id=");
                html_url_arg(rev);
                delim = "&";
        }
        if (grep && pattern) {
                html(delim);
                html("qt=");
                html_url_arg(grep);
                delim = "&";
                html(delim);
                html("q=");
                html_url_arg(pattern);
        }
        if (ofs > 0) {
                html(delim);
                html("ofs=");
                htmlf("%d", ofs);
                delim = "&";
        }
        if (showmsg) {
                html(delim);
                html("showmsg=1");
        }
        html("'>");
        html_txt(name);
        html("</a>");
 }
 void cgit_commit_link(char *name, char *title, char *class, char *head,
                      char *rev, int toggle_ssdiff)
 {
        if (strlen(name) > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) {
                name[ctx.cfg.max_msg_len] = '\0';
                name[ctx.cfg.max_msg_len - 1] = '.';
                name[ctx.cfg.max_msg_len - 2] = '.';
                name[ctx.cfg.max_msg_len - 3] = '.';
        }
        char *delim;
        delim = repolink(title, class, "commit", head, NULL);
        if (rev && strcmp(rev, ctx.qry.head)) {
                html(delim);
                html("id=");
                html_url_arg(rev);
                delim = "&amp;";
        }
        if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
                html(delim);
                html("ss=1");
        }
        html("'>");
        html_txt(name);
        html("</a>");
 }
 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,
                    int toggle_ssdiff)
 {
        char *delim;
        delim = repolink(title, class, "diff", head, path);
-        if (new_rev && strcmp(new_rev, ctx.qry.head)) {
+        if (new_rev && ctx.qry.head != NULL && strcmp(new_rev, ctx.qry.head)) {
                html(delim);
                html("id=");
                html_url_arg(new_rev);
                delim = "&amp;";
        }
        if (old_rev) {
                html(delim);
                html("id2=");
                html_url_arg(old_rev);
                delim = "&amp;";
        }
        if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
                html(delim);
                html("ss=1");
        }
        html("'>");
        html_txt(name);
        html("</a>");
 }
 void cgit_patch_link(char *name, char *title, char *class, char *head,
                     char *rev)
 {
        reporevlink("patch", name, title, class, head, rev, NULL);
 }
 void cgit_stats_link(char *name, char *title, char *class, char *head,
                     char *path)
 {
        reporevlink("stats", name, title, class, head, NULL, path);
 }
 void cgit_object_link(struct object *obj)
 {
        char *page, *shortrev, *fullrev, *name;
        fullrev = sha1_to_hex(obj->sha1);
        shortrev = xstrdup(fullrev);
        shortrev[10] = '\0';
        if (obj->type == OBJ_COMMIT) {
                cgit_commit_link(fmt("commit %s...", shortrev), NULL, NULL,
                                 ctx.qry.head, fullrev, 0);
                return;
        } else if (obj->type == OBJ_TREE)
                page = "tree";
        else if (obj->type == OBJ_TAG)
                page = "tag";
        else
                page = "blob";
        name = fmt("%s %s...", typename(obj->type), shortrev);
        reporevlink(page, name, NULL, NULL, ctx.qry.head, fullrev, NULL);
 }
 void cgit_print_date(time_t secs, char *format, int local_time)
 {
        char buf[64];
        struct tm *time;
        if (!secs)
                return;
        if(local_time)
                time = localtime(&secs);
        else
                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, ctx.cfg.local_time);
                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_http_headers(struct cgit_context *ctx)
 {
        if (ctx->env.no_http && !strcmp(ctx->env.no_http, "1"))
                return;
        if (ctx->page.status)
                htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
        if (ctx->page.mimetype && ctx->page.charset)
                htmlf("Content-Type: %s; charset=%s\n", ctx->page.mimetype,
                      ctx->page.charset);
        else if (ctx->page.mimetype)
                htmlf("Content-Type: %s\n", ctx->page.mimetype);
        if (ctx->page.size)
                htmlf("Content-Length: %ld\n", ctx->page.size);
        if (ctx->page.filename)
                htmlf("Content-Disposition: inline; filename=\"%s\"\n",
                      ctx->page.filename);
        htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
        htmlf("Expires: %s\n", http_date(ctx->page.expires));
        if (ctx->page.etag)
                htmlf("ETag: \"%s\"\n", ctx->page.etag);
        html("\n");
        if (ctx->env.request_method && !strcmp(ctx->env.request_method, "HEAD"))
                exit(0);
 }
 void cgit_print_docstart(struct cgit_context *ctx)
 {
        if (ctx->cfg.embedded) {
                if (ctx->cfg.header)
                        html_include(ctx->cfg.header);
                return;
        }
        char *host = cgit_hosturl();
        html(cgit_doctype);
        html("<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'>\n");
        html("<head>\n");
        html("<title>");
        html_txt(ctx->page.title);
        html("</title>\n");
        htmlf("<meta name='generator' content='cgit %s'/>\n", cgit_version);
        if (ctx->cfg.robots && *ctx->cfg.robots)
                htmlf("<meta name='robots' content='%s'/>\n", ctx->cfg.robots);
        html("<link rel='stylesheet' type='text/css' href='");
        html_attr(ctx->cfg.css);
        html("'/>\n");
        if (ctx->cfg.favicon) {
                html("<link rel='shortcut icon' href='");
                html_attr(ctx->cfg.favicon);
                html("'/>\n");
        }
        if (host && ctx->repo) {
                html("<link rel='alternate' title='Atom feed' href='");
                html(cgit_httpscheme());
                html_attr(cgit_hosturl());
                html_attr(cgit_fileurl(ctx->repo->url, "atom", ctx->qry.path,
                                       fmt("h=%s", ctx->qry.head)));
                html("' type='application/atom+xml'/>\n");
        }
        if (ctx->cfg.head_include)
                html_include(ctx->cfg.head_include);
        html("</head>\n");
        html("<body>\n");
        if (ctx->cfg.header)
                html_include(ctx->cfg.header);
 }
 void cgit_print_docend()
 {
        html("</div> <!-- class=content -->\n");
        if (ctx.cfg.embedded) {
                html("</div> <!-- id=cgit -->\n");
                if (ctx.cfg.footer)
                        html_include(ctx.cfg.footer);
                return;
        }
        if (ctx.cfg.footer)
                html_include(ctx.cfg.footer);
        else {
                htmlf("<div class='footer'>generated  by cgit %s at ",
                        cgit_version);
                cgit_print_date(time(NULL), FMT_LONGDATE, ctx.cfg.local_time);
                html("</div>\n");
        }
        html("</div> <!-- id=cgit -->\n");
        html("</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, ctx.qry.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("<h1>download</h1>\n");
                *header = 1;
        }
        url = cgit_pageurl(ctx.qry.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 cgit_add_hidden_formfields(int incl_head, int incl_search, char *page)
 {
        char *url;
        if (!ctx.cfg.virtual_root) {
                url = fmt("%s/%s", ctx.qry.repo, page);
                if (ctx.qry.path)
                        url = fmt("%s/%s", url, ctx.qry.path);
                html_hidden("url", url);
        }
        if (incl_head && ctx.qry.head && ctx.repo->defbranch &&
            strcmp(ctx.qry.head, ctx.repo->defbranch))
                html_hidden("h", ctx.qry.head);
        if (ctx.qry.sha1)
                html_hidden("id", ctx.qry.sha1);
        if (ctx.qry.sha2)
                html_hidden("id2", ctx.qry.sha2);
        if (ctx.qry.showmsg)
                html_hidden("showmsg", "1");
        if (incl_search) {
                if (ctx.qry.grep)
                        html_hidden("qt", ctx.qry.grep);
                if (ctx.qry.search)
                        html_hidden("q", ctx.qry.search);
        }
 }
 const char *fallback_cmd = "repolist";
 char *hc(struct cgit_cmd *cmd, const char *page)
 {
        return (strcmp(cmd ? cmd->name : fallback_cmd, page) ? NULL : "active");
 }
 static void print_header(struct cgit_context *ctx)
 {
        html("<table id='header'>\n");
        html("<tr>\n");
        if (ctx->cfg.logo && ctx->cfg.logo[0] != 0) {
                html("<td class='logo' rowspan='2'><a href='");
                if (ctx->cfg.logo_link)
                        html_attr(ctx->cfg.logo_link);
                else
                        html_attr(cgit_rooturl());
                html("'><img src='");
                html_attr(ctx->cfg.logo);
                html("' alt='cgit logo'/></a></td>\n");
        }
        html("<td class='main'>");
        if (ctx->repo) {
                cgit_index_link("index", NULL, NULL, NULL, 0);
                html(" : ");
                cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
                html("</td><td class='form'>");
                html("<form method='get' action=''>\n");
                cgit_add_hidden_formfields(0, 1, ctx->qry.page);
                html("<select name='h' onchange='this.form.submit();'>\n");
                for_each_branch_ref(print_branch_option, ctx->qry.head);
                html("</select> ");
                html("<input type='submit' name='' value='switch'/>");
                html("</form>");
        } else
                html_txt(ctx->cfg.root_title);
        html("</td></tr>\n");
        html("<tr><td class='sub'>");
        if (ctx->repo) {
                html_txt(ctx->repo->desc);
                html("</td><td class='sub right'>");
                html_txt(ctx->repo->owner);
        } else {
                if (ctx->cfg.root_desc)
                        html_txt(ctx->cfg.root_desc);
                else if (ctx->cfg.index_info)
                        html_include(ctx->cfg.index_info);
        }
        html("</td></tr></table>\n");
 }
 void cgit_print_pageheader(struct cgit_context *ctx)
 {
        struct cgit_cmd *cmd = cgit_get_cmd(ctx);
        if (!cmd && ctx->repo)
                fallback_cmd = "summary";
        html("<div id='cgit'>");
        if (!ctx->cfg.noheader)
                print_header(ctx);
        html("<table class='tabs'><tr><td>\n");
        if (ctx->repo) {
                cgit_summary_link("summary", NULL, hc(cmd, "summary"),
                                  ctx->qry.head);
                cgit_refs_link("refs", NULL, hc(cmd, "refs"), ctx->qry.head,
                               ctx->qry.sha1, NULL);
                cgit_log_link("log", NULL, hc(cmd, "log"), ctx->qry.head,
                              NULL, NULL, 0, NULL, NULL, ctx->qry.showmsg);
                cgit_tree_link("tree", NULL, hc(cmd, "tree"), ctx->qry.head,
                               ctx->qry.sha1, NULL);
                cgit_commit_link("commit", NULL, hc(cmd, "commit"),
                                 ctx->qry.head, ctx->qry.sha1, 0);
                cgit_diff_link("diff", NULL, hc(cmd, "diff"), ctx->qry.head,
                               ctx->qry.sha1, ctx->qry.sha2, NULL, 0);
                if (ctx->repo->max_stats)
                        cgit_stats_link("stats", NULL, hc(cmd, "stats"),
                                        ctx->qry.head, NULL);
                if (ctx->repo->readme)
                        reporevlink("about", "about", NULL,
                                    hc(cmd, "about"), ctx->qry.head, NULL,
                                    NULL);
                html("</td><td class='form'>");
                html("<form class='right' method='get' action='");
                if (ctx->cfg.virtual_root)
                        html_url_path(cgit_fileurl(ctx->qry.repo, "log",
                                                   ctx->qry.path, NULL));
                html("'>\n");
                cgit_add_hidden_formfields(1, 0, "log");
                html("<select name='qt'>\n");
                html_option("grep", "log msg", ctx->qry.grep);
                html_option("author", "author", ctx->qry.grep);
                html_option("committer", "committer", ctx->qry.grep);
                html("</select>\n");
                html("<input class='txt' type='text' size='10' name='q' value='");
                html_attr(ctx->qry.search);
                html("'/>\n");
                html("<input type='submit' value='search'/>\n");
                html("</form>\n");
        } else {
                site_link(NULL, "index", NULL, hc(cmd, "repolist"), NULL, 0);
                if (ctx->cfg.root_readme)
                        site_link("about", "about", NULL, hc(cmd, "about"),