Merge branch 'lh/escape-urls'

* lh/escape-urls:
  ui-shared.c: use html_url_arg()
  html.c: add html_url_arg

6 files changed, 53 insertions, 11 deletions

diff --git a/html.c b/html.c
index 36e9a2f..167127f 100644
--- a/html.c
+++ b/html.c
@@ -3,255 +3,271 @@
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
 #include <errno.h>
 
 int htmlfd = STDOUT_FILENO;
 
 char *fmt(const char *format, ...)
 {
         static char buf[8][1024];
         static int bufidx;
         int len;
         va_list args;
 
         bufidx++;
         bufidx &= 7;
 
         va_start(args, format);
         len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
         va_end(args);
         if (len>sizeof(buf[bufidx])) {
                 fprintf(stderr, "[html.c] string truncated: %s\n", format);
                 exit(1);
         }
         return buf[bufidx];
 }
 
 void html_raw(const char *data, size_t size)
 {
         write(htmlfd, data, size);
 }
 
 void html(const char *txt)
 {
         write(htmlfd, txt, strlen(txt));
 }
 
 void htmlf(const char *format, ...)
 {
         static char buf[65536];
         va_list args;
 
         va_start(args, format);
         vsnprintf(buf, sizeof(buf), format, args);
         va_end(args);
         html(buf);
 }
 
 void html_status(int code, const char *msg, int more_headers)
 {
         htmlf("Status: %d %s\n", code, msg);
         if (!more_headers)
                 html("\n");
 }
 
 void html_txt(char *txt)
 {
         char *t = txt;
         while(t && *t){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='&') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='&')
                                 html("&amp;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 html(txt);
 }
 
 void html_ntxt(int len, char *txt)
 {
         char *t = txt;
         while(t && *t && len--){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='&') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='&')
                                 html("&amp;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 write(htmlfd, txt, t - txt);
         if (len<0)
                 html("...");
 }
 
 void html_attr(char *txt)
 {
         char *t = txt;
         while(t && *t){
                 int c = *t;
                 if (c=='<' || c=='>' || c=='\'') {
                         write(htmlfd, txt, t - txt);
                         if (c=='>')
                                 html("&gt;");
                         else if (c=='<')
                                 html("&lt;");
                         else if (c=='\'')
                                 html("&quote;");
                         txt = t+1;
                 }
                 t++;
         }
         if (t!=txt)
                 html(txt);
 }
 
+void html_url_arg(char *txt)
+{
+        char *t = txt;
+        while(t && *t){
+                int c = *t;
+                if (c=='"' || c=='#' || c=='%' || c=='&' || c=='\'' || c=='+' || c=='?') {
+                        write(htmlfd, txt, t - txt);
+                        write(htmlfd, fmt("%%%2x", c), 3);
+                        txt = t+1;
+                }
+                t++;
+        }
+        if (t!=txt)
+                html(txt);
+}
+
 void html_hidden(char *name, char *value)
 {
         html("<input type='hidden' name='");
         html_attr(name);
         html("' value='");
         html_attr(value);
         html("'/>");
 }
 
 void html_option(char *value, char *text, char *selected_value)
 {
         html("<option value='");
         html_attr(value);
         html("'");
         if (selected_value && !strcmp(selected_value, value))
                 html(" selected='selected'");
         html(">");
         html_txt(text);
         html("</option>\n");
 }
 
 void html_link_open(char *url, char *title, char *class)
 {
         html("<a href='");
         html_attr(url);
         if (title) {
                 html("' title='");
                 html_attr(title);
         }
         if (class) {
                 html("' class='");
                 html_attr(class);
         }
         html("'>");
 }
 
 void html_link_close(void)
 {
         html("</a>");
 }
 
 void html_fileperm(unsigned short mode)
 {
         htmlf("%c%c%c", (mode & 4 ? 'r' : '-'),
               (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-'));
 }
 
 int html_include(const char *filename)
 {
         FILE *f;
         char buf[4096];
         size_t len;
 
         if (!(f = fopen(filename, "r"))) {
                 fprintf(stderr, "[cgit] Failed to include file %s: %s (%d).\n",
                         filename, strerror(errno), errno);
                 return -1;
         }
         while((len = fread(buf, 1, 4096, f)) > 0)
                 write(htmlfd, buf, len);
         fclose(f);
         return 0;
 }
 
 int hextoint(char c)
 {
         if (c >= 'a' && c <= 'f')
                 return 10 + c - 'a';
         else if (c >= 'A' && c <= 'F')
                 return 10 + c - 'A';
         else if (c >= '0' && c <= '9')
                 return c - '0';
         else
                 return -1;
 }
 
 char *convert_query_hexchar(char *txt)
 {
         int d1, d2;
         if (strlen(txt) < 3) {
                 *txt = '\0';
                 return txt-1;
         }
         d1 = hextoint(*(txt+1));
         d2 = hextoint(*(txt+2));
         if (d1<0 || d2<0) {
                 strcpy(txt, txt+3);
                 return txt-1;
         } else {
                 *txt = d1 * 16 + d2;
                 strcpy(txt+1, txt+3);
                 return txt;
         }
 }
 
 int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value))
 {
         char *t, *value = NULL, c;
 
         if (!txt)
                 return 0;
 
         t = txt = strdup(txt);
         if (t == NULL) {
                 printf("Out of memory\n");
                 exit(1);
         }
         while((c=*t) != '\0') {
                 if (c=='=') {
                         *t = '\0';
                         value = t+1;
                 } else if (c=='+') {
                         *t = ' ';
                 } else if (c=='%') {
                         t = convert_query_hexchar(t);
                 } else if (c=='&') {
                         *t = '\0';
                         (*fn)(txt, value);
                         txt = t+1;
                         value = NULL;
                 }
                 t++;
         }
         if (t!=txt)
                 (*fn)(txt, value);
         return 0;
 }
diff --git a/html.h b/html.h
index 3c32935..038cf60 100644
--- a/html.h
+++ b/html.h
@@ -1,22 +1,23 @@
 #ifndef HTML_H
 #define HTML_H
 
 extern int htmlfd;
 
 extern void html_raw(const char *txt, size_t size);
 extern void html(const char *txt);
 extern void htmlf(const char *format,...);
 extern void html_status(int code, const char *msg, int more_headers);
 extern void html_txt(char *txt);
 extern void html_ntxt(int len, char *txt);
 extern void html_attr(char *txt);
+extern void html_url_arg(char *txt);
 extern void html_hidden(char *name, char *value);
 extern void html_option(char *value, char *text, char *selected_value);
 extern void html_link_open(char *url, char *title, char *class);
 extern void html_link_close(void);
 extern void html_fileperm(unsigned short mode);
 extern int html_include(const char *filename);
 
 extern int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value));
 
 #endif /* HTML_H */
diff --git a/tests/setup.sh b/tests/setup.sh
index e37306e..1457dd5 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -1,116 +1,127 @@
 # This file should be sourced by all test-scripts
 #
 # Main functions:
 #   prepare_tests(description) - setup for testing, i.e. create repos+config
 #   run_test(description, script) - run one test, i.e. eval script
 #
 # Helper functions
 #   cgit_query(querystring) - call cgit with the specified querystring
 #   cgit_url(url) - call cgit with the specified virtual url
 #
 # Example script:
 #
 # . setup.sh
 # prepare_tests "html validation"
 # run_test 'repo index' 'cgit_url "/" | tidy -e'
 # run_test 'repo summary' 'cgit_url "/foo" | tidy -e'
 
 
 mkrepo() {
         name=$1
         count=$2
         dir=$PWD
         test -d $name && return
         printf "Creating testrepo %s\n" $name
         mkdir -p $name
         cd $name
         git init
         for ((n=1; n<=count; n++))
         do
                 echo $n >file-$n
                 git add file-$n
                 git commit -m "commit $n"
         done
+        if test "$3" = "testplus"
+        then
+                echo "hello" >a+b
+                git add a+b
+                git commit -m "add a+b"
+                git branch "1+2"
+        fi
         cd $dir
 }
 
 setup_repos()
 {
         rm -rf trash/cache
         mkdir -p trash/cache
         mkrepo trash/repos/foo 5 >/dev/null
         mkrepo trash/repos/bar 50 >/dev/null
+        mkrepo trash/repos/foo+bar 10 testplus >/dev/null
         cat >trash/cgitrc <<EOF
 virtual-root=/
 cache-root=$PWD/trash/cache
 
 cache-size=1021
 snapshots=tar.gz tar.bz zip
 enable-log-filecount=1
 enable-log-linecount=1
 summary-log=5
 summary-branches=5
 summary-tags=5
 
 repo.url=foo
 repo.path=$PWD/trash/repos/foo/.git
 # Do not specify a description for this repo, as it then will be assigned
 # the constant value "[no description]" (which actually used to cause a
 # segfault).
 
 repo.url=bar
 repo.path=$PWD/trash/repos/bar/.git
 repo.desc=the bar repo
+
+repo.url=foo+bar
+repo.path=$PWD/trash/repos/foo+bar/.git
+repo.desc=the foo+bar repo
 EOF
 }
 
 prepare_tests()
 {
         setup_repos
         rm -f test-output.log 2>/dev/null
         test_count=0
         test_failed=0
         echo "[$0]" "$@" >test-output.log
         echo "$@" "($0)"
 }
 
 tests_done()
 {
         printf "\n"
         if test $test_failed -gt 0
         then
                 printf "test: *** %s failure(s), logfile=%s\n" \
                         $test_failed "$(pwd)/test-output.log"
                 false
         fi
 }
 
 run_test()
 {
         desc=$1
         script=$2
         ((test_count++))
         printf "\ntest %d: name='%s'\n" $test_count "$desc" >>test-output.log
         printf "test %d: eval='%s'\n" $test_count "$2" >>test-output.log
         eval "$2" >>test-output.log 2>>test-output.log
         res=$?
         printf "test %d: exitcode=%d\n" $test_count $res >>test-output.log
         if test $res = 0
         then
                 printf " %2d) %-60s [ok]\n" $test_count "$desc"
         else
                 ((test_failed++))
                 printf " %2d) %-60s [failed]\n" $test_count "$desc"
         fi
 }
 
 cgit_query()
 {
         CGIT_CONFIG="$PWD/trash/cgitrc" QUERY_STRING="$1" "$PWD/../cgit"
 }
 
 cgit_url()
 {
         CGIT_CONFIG="$PWD/trash/cgitrc" QUERY_STRING="url=$1" "$PWD/../cgit"
 }
-
diff --git a/tests/t0101-index.sh b/tests/t0101-index.sh
index 445af6a..07e39f9 100755
--- a/tests/t0101-index.sh
+++ b/tests/t0101-index.sh
@@ -1,15 +1,17 @@
 #!/bin/sh
 
 . ./setup.sh
 
 prepare_tests "Check content on index page"
 
 run_test 'generate index page' 'cgit_url "" >trash/tmp'
 run_test 'find foo repo' 'grep -e "foo" trash/tmp'
 run_test 'find foo description' 'grep -e "\[no description\]" trash/tmp'
 run_test 'find bar repo' 'grep -e "bar" trash/tmp'
 run_test 'find bar description' 'grep -e "the bar repo" trash/tmp'
+run_test 'find foo+bar repo' 'grep -e ">foo+bar<" trash/tmp'
+run_test 'verify foo+bar link' 'grep -e "/foo+bar/" trash/tmp'
 run_test 'no tree-link' '! grep -e "foo/tree" trash/tmp'
 run_test 'no log-link' '! grep -e "foo/log" trash/tmp'
 
 tests_done
diff --git a/tests/t0104-tree.sh b/tests/t0104-tree.sh
index 2516c72..0d62cc8 100755
--- a/tests/t0104-tree.sh
+++ b/tests/t0104-tree.sh
@@ -1,21 +1,33 @@
 #!/bin/sh
 
 . ./setup.sh
 
 prepare_tests "Check content on tree page"
 
 run_test 'generate bar/tree' 'cgit_url "bar/tree" >trash/tmp'
 run_test 'find file-1' 'grep -e "file-1" trash/tmp'
 run_test 'find file-50' 'grep -e "file-50" trash/tmp'
 
 run_test 'generate bar/tree/file-50' 'cgit_url "bar/tree/file-50" >trash/tmp'
 
 run_test 'find line 1' '
         grep -e "<a id=.n1. name=.n1. href=.#n1.>1</a>" trash/tmp
 '
 
 run_test 'no line 2' '
         grep -e "<a id=.n2. name=.n2. href=.#n2.>2</a>" trash/tmp
 '
 
+run_test 'generate foo+bar/tree' 'cgit_url "foo%2bbar/tree" >trash/tmp'
+
+run_test 'verify a+b link' '
+        grep -e "/foo+bar/tree/a+b" trash/tmp
+'
+
+run_test 'generate foo+bar/tree?h=1+2' 'cgit_url "foo%2bbar/tree&h=1%2b2" >trash/tmp'
+
+run_test 'verify a+b?h=1+2 link' '
+        grep -e "/foo+bar/tree/a+b?h=1%2b2" trash/tmp
+'
+
 tests_done
diff --git a/ui-shared.c b/ui-shared.c
index c23bc75..a2f636c 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -96,375 +96,375 @@ char *cgit_pageurl(const char *reponame, const char *pagename,
 {
         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_attr(ctx.cfg.virtual_root);
                 if (ctx.cfg.virtual_root[strlen(ctx.cfg.virtual_root) - 1] != '/')
                         html("/");
                 html_attr(ctx.repo->url);
                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
                         html("/");
                 if (page) {
                         html(page);
                         html("/");
                         if (path)
                                 html_attr(path);
                 }
         } else {
                 html(ctx.cfg.script_name);
                 html("?url=");
-                html_attr(ctx.repo->url);
+                html_url_arg(ctx.repo->url);
                 if (ctx.repo->url[strlen(ctx.repo->url) - 1] != '/')
                         html("/");
                 if (page) {
-                        html(page);
+                        html_url_arg(page);
                         html("/");
                         if (path)
-                                html_attr(path);
+                                html_url_arg(path);
                 }
                 delim = "&amp;";
         }
         if (head && strcmp(head, ctx.repo->defbranch)) {
                 html(delim);
                 html("h=");
-                html_attr(head);
+                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)) {
                 html(delim);
                 html("id=");
-                html_attr(rev);
+                html_url_arg(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_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)
 {
         char *delim;
 
         delim = repolink(title, class, "log", head, path);
         if (rev && strcmp(rev, ctx.qry.head)) {
                 html(delim);
                 html("id=");
-                html_attr(rev);
+                html_url_arg(rev);
                 delim = "&";
         }
         if (grep && pattern) {
                 html(delim);
                 html("qt=");
-                html_attr(grep);
+                html_url_arg(grep);
                 delim = "&";
                 html(delim);
                 html("q=");
-                html_attr(pattern);
+                html_url_arg(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) > 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] = '.';
         }
         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, ctx.qry.head)) {
                 html(delim);
                 html("id=");
-                html_attr(new_rev);
+                html_url_arg(new_rev);
                 delim = "&amp;";
         }
         if (old_rev) {
                 html(delim);
                 html("id2=");
-                html_attr(old_rev);
+                html_url_arg(old_rev);
         }
         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_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,
                                  ctx.qry.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(ctx.qry.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, 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->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));
         html("\n");
 }
 
 void cgit_print_docstart(struct cgit_context *ctx)
 {
         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);