1 9df487d7 2003-11-23 devnull #include <u.h>
 2 9df487d7 2003-11-23 devnull #include <libc.h>
 3 9df487d7 2003-11-23 devnull #include <bin.h>
 4 9df487d7 2003-11-23 devnull #include <httpd.h>
 5 9df487d7 2003-11-23 devnull 
 6 9df487d7 2003-11-23 devnull /*
 7 9df487d7 2003-11-23 devnull  *  go from http with latin1 escapes to utf,
 8 9df487d7 2003-11-23 devnull  *  we assume that anything >= Runeself is already in utf
 9 9df487d7 2003-11-23 devnull  */
10 9df487d7 2003-11-23 devnull char *
11 9df487d7 2003-11-23 devnull httpunesc(HConnect *cc, char *s)
12 9df487d7 2003-11-23 devnull {
13 9df487d7 2003-11-23 devnull 	char *t, *v;
14 9df487d7 2003-11-23 devnull 	int c;
15 9df487d7 2003-11-23 devnull 	Htmlesc *e;
16 9df487d7 2003-11-23 devnull 
17 9df487d7 2003-11-23 devnull 	v = halloc(cc, UTFmax*strlen(s) + 1);
18 9df487d7 2003-11-23 devnull 	for(t = v; c = *s;){
19 9df487d7 2003-11-23 devnull 		if(c == '&'){
20 9df487d7 2003-11-23 devnull 			if(s[1] == '#' && s[2] && s[3] && s[4] && s[5] == ';'){
21 9df487d7 2003-11-23 devnull 				c = atoi(s+2);
22 9df487d7 2003-11-23 devnull 				if(c < Runeself){
23 9df487d7 2003-11-23 devnull 					*t++ = c;
24 9df487d7 2003-11-23 devnull 					s += 6;
25 9df487d7 2003-11-23 devnull 					continue;
26 9df487d7 2003-11-23 devnull 				}
27 9df487d7 2003-11-23 devnull 				if(c < 256 && c >= 161){
28 9df487d7 2003-11-23 devnull 					e = &htmlesc[c-161];
29 9df487d7 2003-11-23 devnull 					t += runetochar(t, &e->value);
30 9df487d7 2003-11-23 devnull 					s += 6;
31 9df487d7 2003-11-23 devnull 					continue;
32 9df487d7 2003-11-23 devnull 				}
33 9df487d7 2003-11-23 devnull 			} else {
34 9df487d7 2003-11-23 devnull 				for(e = htmlesc; e->name != nil; e++)
35 9df487d7 2003-11-23 devnull 					if(strncmp(e->name, s, strlen(e->name)) == 0)
36 9df487d7 2003-11-23 devnull 						break;
37 9df487d7 2003-11-23 devnull 				if(e->name != nil){
38 9df487d7 2003-11-23 devnull 					t += runetochar(t, &e->value);
39 9df487d7 2003-11-23 devnull 					s += strlen(e->name);
40 9df487d7 2003-11-23 devnull 					continue;
41 9df487d7 2003-11-23 devnull 				}
42 9df487d7 2003-11-23 devnull 			}
43 9df487d7 2003-11-23 devnull 		}
44 9df487d7 2003-11-23 devnull 		*t++ = c;
45 9df487d7 2003-11-23 devnull 		s++;
46 9df487d7 2003-11-23 devnull 	}
47 9df487d7 2003-11-23 devnull 	*t = 0;
48 9df487d7 2003-11-23 devnull 	return v;
49 9df487d7 2003-11-23 devnull }