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#include <sys/stat.h>
#include <sys/types.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "util.h"
static struct feed f;
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 */
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:
fputc(*s, fp);
break;
}
}
}
static void
printfeed(FILE *fpitems, FILE *fpin, struct feed *f)
{
char *fields[FieldLast];
ssize_t linelen;
unsigned int isnew;
struct tm *tm;
time_t parsedtime;
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) {
if (line[linelen - 1] == '\n')
line[--linelen] = '\0';
if (!parseline(line, fields))
break;
parsedtime = 0;
if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
continue;
if (!(tm = localtime(&parsedtime)))
err(1, "localtime");
isnew = (parsedtime >= comparetime) ? 1 : 0;
f->totalnew += isnew;
f->total++;
if (fields[FieldLink][0]) {
fputs("h", fpitems);
fprintf(fpitems, "%c %04d-%02d-%02d %02d:%02d ",
isnew ? 'N' : ' ',
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min);
gophertext(fpitems, fields[FieldTitle]);
fputs("\tURL:", fpitems);
gophertext(fpitems, fields[FieldLink]);
} else {
fprintf(fpitems, "i%c %04d-%02d-%02d %02d:%02d ",
isnew ? 'N' : ' ',
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min);
gophertext(fpitems, fields[FieldTitle]);
fputs("\t", fpitems);
}
fprintf(fpitems, "\t%s\t%s\r\n", host, port);
}
fputs(".\r\n", fpitems);
}
int
main(int argc, char *argv[])
{
FILE *fpitems, *fpindex, *fp;
char *name, *p, path[PATH_MAX + 1];
int i, r;
if (pledge(argc == 1 ? "stdio" : "stdio rpath wpath cpath", NULL) == -1)
err(1, "pledge");
if ((comparetime = time(NULL)) == -1)
err(1, "time");
/* 1 day is old news */
comparetime -= 86400;
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);
} 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]);
r = snprintf(path, sizeof(path), "%s", name);
if (r < 0 || (size_t)r >= sizeof(path))
errx(1, "path truncation: %s", path);
if (!(fpitems = fopen(path, "wb")))
err(1, "fopen");
printfeed(fpitems, fp, &f);
if (ferror(fp))
err(1, "ferror: %s", argv[i]);
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, path);
fprintf(fpindex, "\t%s\t%s\r\n", host, port);
}
fputs(".\r\n", fpindex);
fclose(fpindex);
}
return 0;
}
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