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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "util.h"
static char *prefixpath = "/", *host = "127.0.0.1", *port = "70"; /* default */
static char *line;
static size_t linesize;
static time_t comparetime;
/* Escape characters in gopher, CR and LF are ignored */
static void
gophertext(FILE *fp, const char *s)
{
for (; *s; s++) {
switch (*s) {
case '\r': /* ignore CR */
case '\n': /* ignore LF */
break;
case '\t':
fputs(" ", fp);
break;
default:
putc(*s, fp);
break;
}
}
}
static void
printfeed(FILE *fpitems, FILE *fpin, struct feed *f)
{
struct uri u;
char *fields[FieldLast];
char *itemhost, *itemport, *itempath, *itemquery, *itemfragment;
ssize_t linelen;
unsigned int isnew;
struct tm rtm, *tm;
time_t parsedtime;
int itemtype;
if (f->name[0]) {
fprintf(fpitems, "i%s\t\t%s\t%s\r\n", f->name, host, port);
fprintf(fpitems, "i\t\t%s\t%s\r\n", host, port);
}
while ((linelen = getline(&line, &linesize, fpin)) > 0 &&
!ferror(fpitems)) {
if (line[linelen - 1] == '\n')
line[--linelen] = '\0';
parseline(line, fields);
itemhost = host;
itemport = port;
itemtype = 'i';
itempath = fields[FieldLink];
itemquery = "";
itemfragment = "";
if (fields[FieldLink][0]) {
itemtype = 'h';
/* if it is a gopher URL then change it into a DirEntity */
if (!strncmp(fields[FieldLink], "gopher://", 9) &&
uri_parse(fields[FieldLink], &u) != -1) {
itemhost = u.host;
itemport = u.port[0] ? u.port : "70";
itemtype = '1';
itempath = u.path;
itemquery = u.query;
itemfragment = u.fragment;
if (itempath[0] == '/') {
itempath++;
if (*itempath) {
itemtype = *itempath;
itempath++;
}
}
}
}
parsedtime = 0;
if (!strtotime(fields[FieldUnixTimestamp], &parsedtime) &&
(tm = localtime_r(&parsedtime, &rtm))) {
isnew = (parsedtime >= comparetime) ? 1 : 0;
f->totalnew += isnew;
fprintf(fpitems, "%c%c %04d-%02d-%02d %02d:%02d ",
itemtype,
isnew ? 'N' : ' ',
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min);
} else {
fprintf(fpitems, "%c ", itemtype);
}
f->total++;
gophertext(fpitems, fields[FieldTitle]);
fputs("\t", fpitems);
if (itemtype == 'h' && fields[FieldLink] == itempath)
fputs("URL:", fpitems);
gophertext(fpitems, itempath);
if (itemquery[0]) {
fputs("?", fpitems);
gophertext(fpitems, itemquery);
}
if (itemfragment[0]) {
fputs("#", fpitems);
gophertext(fpitems, itemfragment);
}
fprintf(fpitems, "\t%s\t%s\r\n", itemhost, itemport);
}
fputs(".\r\n", fpitems);
}
int
main(int argc, char *argv[])
{
struct feed f = { 0 };
FILE *fpitems, *fpindex, *fp;
char *name, *p;
int i;
if (argc == 1) {
if (pledge("stdio", NULL) == -1)
err(1, "pledge");
} else {
if (unveil("/", "r") == -1)
err(1, "unveil: /");
if (unveil(".", "rwc") == -1)
err(1, "unveil: .");
if (pledge("stdio rpath wpath cpath", NULL) == -1)
err(1, "pledge");
}
if ((comparetime = getcomparetime()) == (time_t)-1)
errx(1, "getcomparetime");
if ((p = getenv("SFEED_GOPHER_HOST")))
host = p;
if ((p = getenv("SFEED_GOPHER_PORT")))
port = p;
if (argc == 1) {
f.name = "";
printfeed(stdout, stdin, &f);
checkfileerror(stdin, "<stdin>", 'r');
checkfileerror(stdout, "<stdout>", 'w');
} else {
if ((p = getenv("SFEED_GOPHER_PATH")))
prefixpath = p;
/* write main index page */
if (!(fpindex = fopen("index", "wb")))
err(1, "fopen: index");
for (i = 1; i < argc; i++) {
memset(&f, 0, sizeof(f));
name = ((name = strrchr(argv[i], '/'))) ? name + 1 : argv[i];
f.name = name;
if (!(fp = fopen(argv[i], "r")))
err(1, "fopen: %s", argv[i]);
if (!(fpitems = fopen(name, "wb")))
err(1, "fopen");
printfeed(fpitems, fp, &f);
checkfileerror(fp, argv[i], 'r');
checkfileerror(fpitems, name, 'w');
fclose(fp);
fclose(fpitems);
/* append directory item to index */
fputs("1", fpindex);
gophertext(fpindex, name);
fprintf(fpindex, " (%lu/%lu)\t", f.totalnew, f.total);
gophertext(fpindex, prefixpath);
gophertext(fpindex, name);
fprintf(fpindex, "\t%s\t%s\r\n", host, port);
}
fputs(".\r\n", fpindex);
checkfileerror(fpindex, "index", 'w');
fclose(fpindex);
}
return 0;
}
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