1/* html.c: helper functions for html output
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10
 11char *fmt(const char *format, ...)
 12{
 13	static char buf[8][1024];
 14	static int bufidx;
 15	int len;
 16	va_list args;
 17
 18	bufidx++;
 19	bufidx &= 7;
 20
 21	va_start(args, format);
 22	len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
 23	va_end(args);
 24	if (len>sizeof(buf[bufidx]))
 25		die("[html.c] string truncated: %s", format);
 26	return buf[bufidx];
 27}
 28
 29void html(const char *txt)
 30{
 31	write(htmlfd, txt, strlen(txt));
 32}
 33
 34void htmlf(const char *format, ...)
 35{
 36	static char buf[65536];
 37	va_list args;
 38
 39	va_start(args, format);
 40	vsnprintf(buf, sizeof(buf), format, args);
 41	va_end(args);
 42	html(buf);
 43}
 44
 45void html_txt(char *txt)
 46{
 47	char *t = txt;
 48	while(*t){
 49		int c = *t;
 50		if (c=='<' || c=='>' || c=='&') {
 51			*t = '\0';
 52			html(txt);
 53			*t = c;
 54			if (c=='>')
 55				html("&gt;");
 56			else if (c=='<')
 57				html("&lt;");
 58			else if (c=='&')
 59				html("&amp;");
 60			txt = t+1;
 61		}
 62		t++;
 63	}
 64	if (t!=txt)
 65		html(txt);
 66}
 67
 68void html_ntxt(int len, char *txt)
 69{
 70	char *t = txt;
 71	while(*t && len--){
 72		int c = *t;
 73		if (c=='<' || c=='>' || c=='&') {
 74			*t = '\0';
 75			html(txt);
 76			*t = c;
 77			if (c=='>')
 78				html("&gt;");
 79			else if (c=='<')
 80				html("&lt;");
 81			else if (c=='&')
 82				html("&amp;");
 83			txt = t+1;
 84		}
 85		t++;
 86	}
 87	if (t!=txt) {
 88		char c = *t;
 89		*t = '\0';
 90		html(txt);
 91		*t = c;
 92	}
 93	if (len<0)
 94		html("...");
 95}
 96
 97void html_attr(char *txt)
 98{
 99	char *t = txt;
100	while(*t){
101		int c = *t;
102		if (c=='<' || c=='>' || c=='\'') {
103			*t = '\0';
104			html(txt);
105			*t = c;
106			if (c=='>')
107				html("&gt;");
108			else if (c=='<')
109				html("&lt;");
110			else if (c=='\'')
111				html("&quote;");
112			txt = t+1;
113		}
114		t++;
115	}
116	if (t!=txt)
117		html(txt);
118}
119
120void html_link_open(char *url, char *title, char *class)
121{
122	html("<a href='");
123	html_attr(url);
124	if (title) {
125		html("' title='");
126		html_attr(title);
127	}
128	if (class) {
129		html("' class='");
130		html_attr(class);
131	}
132	html("'>");
133}
134
135void html_link_close(void)
136{
137	html("</a>");
138}
139
140void html_fileperm(unsigned short mode)
141{
142	htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), 
143	      (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-'));
144}
145
146void html_filemode(unsigned short mode)
147{
148	if (S_ISDIR(mode))
149		html("d");
150	else if (S_ISLNK(mode))
151		html("l");
152	else
153		html("-");
154	html_fileperm(mode >> 6);
155	html_fileperm(mode >> 3);
156	html_fileperm(mode);
157}
158