2 ashd - A Sane HTTP Daemon
3 Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
32 char *htmlquote(char *text)
37 for(; *text; text++) {
39 bufcatstr(buf, "<");
41 bufcatstr(buf, ">");
43 bufcatstr(buf, "&");
51 void simpleerror(int fd, int code, char *msg, char *fmt, ...)
59 tmp1 = vsprintf2(fmt, args);
61 tmp2 = htmlquote(tmp1);
64 bufcatstr(buf, "<?xml version=\"1.0\" encoding=\"US-ASCII\"?>\r\n");
65 bufcatstr(buf, "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\r\n");
66 bufcatstr(buf, "<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"en-US\" xml:lang=\"en-US\">\r\n");
67 bufcatstr(buf, "<head>\r\n");
68 bprintf(&buf, "<title>%s</title>\r\n", msg);
69 bufcatstr(buf, "</head>\r\n");
70 bufcatstr(buf, "<body>\r\n");
71 bprintf(&buf, "<h1>%s</h1>\r\n", msg);
72 bprintf(&buf, "<p>%s</p>\r\n", tmp2);
73 bufcatstr(buf, "</body>\r\n");
74 bufcatstr(buf, "</html>\r\n");
76 out = fdopen(fd, "w");
77 fprintf(out, "HTTP/1.1 %i %s\n", code, msg);
78 fprintf(out, "Content-Type: text/html\n");
79 fprintf(out, "Content-Length: %zi\n", buf.d);
81 fwrite(buf.b, 1, buf.d, out);
86 char *fmthttpdate(time_t time)
88 /* I avoid using strftime, since it depends on locale settings. */
89 static char *days[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
90 static char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
91 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
95 return(sprintf3("%s, %i %s %i %02i:%02i:%02i GMT", days[(tm->tm_wday + 6) % 7], tm->tm_mday, months[tm->tm_mon], tm->tm_year + 1900, tm->tm_hour, tm->tm_min, tm->tm_sec));
98 time_t parsehttpdate(char *date)
100 static regex_t *spec = NULL;
101 static char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
102 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
108 int gtoi(regmatch_t g)
112 for(i = g.rm_so, n = 0; i < g.rm_eo; i++)
113 n = (n * 10) + (date[i] - '0');
117 int gstrcmp(regmatch_t g, char *str) {
118 if(g.rm_eo - g.rm_so != strlen(str))
120 return(strncasecmp(date + g.rm_so, str, g.rm_eo - g.rm_so));
125 if(regcomp(spec, "^[A-Z]{3}, +([0-9]+) +([A-Z]{3}) +([0-9]+) +([0-9]{2}):([0-9]{2}):([0-9]{2}) +(([A-Z]+)|[+-]([0-9]{2})([0-9]{2}))$", REG_EXTENDED | REG_ICASE)) {
131 if(regexec(spec, date, 11, g, 0))
133 tm.tm_mday = gtoi(g[1]);
134 tm.tm_year = gtoi(g[3]) - 1900;
135 tm.tm_hour = gtoi(g[4]);
136 tm.tm_min = gtoi(g[5]);
137 tm.tm_sec = gtoi(g[6]);
140 for(i = 0; i < 12; i++) {
141 if(!gstrcmp(g[2], months[i])) {
150 if(!gstrcmp(g[8], "GMT"))
154 } else if((g[9].rm_so > 0) && (g[10].rm_so > 0)) {
155 tz = gtoi(g[9]) * 3600 + gtoi(g[10]) * 60;
156 if(date[g[7].rm_so] == '-')
162 return(timegm(&tm) - tz);