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#include <stdio.h>
#include <string.h>
#include <time.h>
#include "util.h"
static struct tm tmnow;
static time_t now;
static char *line;
static size_t linesize;
static void
printcontent(const char *s)
{
for (; *s; ++s) {
switch (*s) {
case '<': fputs("<", stdout); break;
case '>': fputs(">", stdout); break;
case '\'': fputs("'", stdout); break;
case '&': fputs("&", stdout); break;
case '"': fputs(""", stdout); break;
case '\\':
if (*(s + 1) == '\0')
break;
s++;
switch (*s) {
case 'n': putchar('\n'); break;
case '\\': putchar('\\'); break;
case 't': putchar('\t'); break;
}
break;
default: putchar(*s);
}
}
}
static void
printfeed(FILE *fp, const char *feedname)
{
char *fields[FieldLast], *p, *tmp;
struct tm parsedtm, *tm;
time_t parsedtime;
ssize_t linelen;
int c;
while ((linelen = getline(&line, &linesize, fp)) > 0 &&
!ferror(stdout)) {
if (line[linelen - 1] == '\n')
line[--linelen] = '\0';
parseline(line, fields);
fputs("<entry>\n\t<title>", stdout);
if (feedname[0]) {
fputs("[", stdout);
xmlencode(feedname, stdout);
fputs("] ", stdout);
}
xmlencode(fields[FieldTitle], stdout);
fputs("</title>\n", stdout);
if (fields[FieldLink][0]) {
fputs("\t<link rel=\"alternate\" href=\"", stdout);
xmlencode(fields[FieldLink], stdout);
fputs("\" />\n", stdout);
}
/* prefer link over id for Atom <id>. */
fputs("\t<id>", stdout);
if (fields[FieldLink][0])
xmlencode(fields[FieldLink], stdout);
else if (fields[FieldId][0])
xmlencode(fields[FieldId], stdout);
fputs("</id>\n", stdout);
if (fields[FieldEnclosure][0]) {
fputs("\t<link rel=\"enclosure\" href=\"", stdout);
xmlencode(fields[FieldEnclosure], stdout);
fputs("\" />\n", stdout);
}
parsedtime = 0;
if (strtotime(fields[FieldUnixTimestamp], &parsedtime) ||
!(tm = gmtime_r(&parsedtime, &parsedtm)))
tm = &tmnow;
fprintf(stdout, "\t<updated>%04d-%02d-%02dT%02d:%02d:%02dZ</updated>\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
if (fields[FieldAuthor][0]) {
fputs("\t<author><name>", stdout);
xmlencode(fields[FieldAuthor], stdout);
fputs("</name></author>\n", stdout);
}
if (fields[FieldContent][0]) {
if (!strcmp(fields[FieldContentType], "html")) {
fputs("\t<content type=\"html\">", stdout);
} else {
/* NOTE: an RSS/Atom viewer may or may not format
whitespace such as newlines.
Workaround: type="html" and <![CDATA[<pre></pre>]]> */
fputs("\t<content>", stdout);
}
printcontent(fields[FieldContent]);
fputs("</content>\n", stdout);
}
for (p = fields[FieldCategory]; (tmp = strchr(p, '|')); p = tmp + 1) {
c = *tmp;
*tmp = '\0'; /* temporary NUL-terminate */
if (*p) {
fputs("\t<category term=\"", stdout);
xmlencode(p, stdout);
fputs("\" />\n", stdout);
}
*tmp = c; /* restore */
}
fputs("</entry>\n", stdout);
}
}
int
main(int argc, char *argv[])
{
struct tm *tm;
FILE *fp;
char *name;
int i;
if (pledge(argc == 1 ? "stdio" : "stdio rpath", NULL) == -1)
err(1, "pledge");
if ((now = time(NULL)) == (time_t)-1)
errx(1, "time");
if (!(tm = gmtime_r(&now, &tmnow)))
err(1, "gmtime_r: can't get current time");
fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<feed xmlns=\"http://www.w3.org/2005/Atom\">\n"
"\t<title>Newsfeed</title>\n", stdout);
printf("\t<id>urn:newsfeed:%lld</id>\n"
"\t<updated>%04d-%02d-%02dT%02d:%02d:%02dZ</updated>\n",
(long long)now,
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
if (argc == 1) {
printfeed(stdin, "");
checkfileerror(stdin, "<stdin>", 'r');
} else {
for (i = 1; i < argc; i++) {
if (!(fp = fopen(argv[i], "r")))
err(1, "fopen: %s", argv[i]);
name = ((name = strrchr(argv[i], '/'))) ? name + 1 : argv[i];
printfeed(fp, name);
checkfileerror(fp, argv[i], 'r');
checkfileerror(stdout, "<stdout>", 'w');
fclose(fp);
}
}
fputs("</feed>\n", stdout);
checkfileerror(stdout, "<stdout>", 'w');
return 0;
}
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