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#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include "queue.h"
#include "util.h"
static int showsidebar = 1; /* show sidebar ? */
static FILE *fpindex = NULL, *fpitems = NULL, *fpmenu = NULL;
static FILE *fpcontent = NULL;
static char *line = NULL;
static SLIST_HEAD(fhead, feed) fhead = SLIST_HEAD_INITIALIZER(fhead);
static struct utimbuf contenttime;
static void
cleanup(void)
{
if(fpmenu)
fclose(fpmenu);
if(fpitems)
fclose(fpitems);
if(fpindex)
fclose(fpindex);
if(fpcontent)
fclose(fpcontent);
fpmenu = NULL;
fpitems = NULL;
fpindex = NULL;
fpcontent = NULL;
}
/* same as errx() but first call cleanup() function */
static void
xerrx(int eval, const char *fmt, ...)
{
va_list ap;
cleanup();
va_start(ap, fmt);
verrx(eval, fmt, ap);
va_end(ap);
}
/* same as err() but first call cleanup() function */
static void
xerr(int eval, const char *fmt, ...)
{
int saved_errno = errno;
va_list ap;
cleanup();
errno = saved_errno;
va_start(ap, fmt);
verr(eval, fmt, ap);
va_end(ap);
}
static int
esnprintf(char *str, size_t size, const char *fmt, ...)
{
va_list ap;
int r;
va_start(ap, fmt);
r = vsnprintf(str, size, fmt, ap);
va_end(ap);
if(r == -1 || (size_t)r >= size)
xerrx(1, "snprintf");
return r;
}
/* print text, ignore tabs, newline and carriage return etc
* print some HTML 2.0 / XML 1.0 as normal text */
static void
printcontent(const char *s, FILE *fp)
{
const char *p;
for(p = s; *p; p++) {
if(*p == '\\') {
p++;
if(*p == '\\')
fputc('\\', fp);
else if(*p == 't')
fputc('\t', fp);
else if(*p == 'n')
fputc('\n', fp);
else
fputc(*p, fp); /* unknown */
} else {
fputc(*p, fp);
}
}
}
/* normalize path names, transform to lower-case and replace non-alpha and
* non-digit with '-' */
static size_t
normalizepath(const char *path, char *buf, size_t bufsiz)
{
size_t i = 0, r = 0;
for(; *path && i < bufsiz; path++) {
if(isalpha((int)*path) || isdigit((int)*path)) {
buf[i++] = tolower((int)*path);
r = 0;
} else {
/* don't repeat '-'. */
if(!r)
buf[i++] = '-';
r++;
}
}
/* remove trailing '-' */
for(; i > 0 && (buf[i - 1] == '-'); i--)
;
if(bufsiz > 0)
buf[i] = '\0';
return i;
}
int
main(int argc, char *argv[])
{
struct feed *f, *fcur = NULL;
char *fields[FieldLast];
char name[256]; /* buffer for feedname */
char dirpath[PATH_MAX], filepath[PATH_MAX];
char reldirpath[PATH_MAX], relfilepath[PATH_MAX];
char *feedname = "", *basepath = ".";
unsigned long totalfeeds = 0, totalnew = 0;
unsigned int isnew;
time_t parsedtime, comparetime;
size_t linesize = 0, namelen, basepathlen;
struct stat st;
int r;
if(argc > 1 && argv[1][0] != '\0')
basepath = argv[1];
/* 1 day is old news */
comparetime = time(NULL) - 86400;
basepathlen = strlen(basepath);
if(basepathlen > 0) {
mkdir(basepath, S_IRWXU);
xerr(1, "mkdir: %s", basepath);
}
/* write main index page */
esnprintf(dirpath, sizeof(dirpath), "%s/index.html", basepath);
if(!(fpindex = fopen(dirpath, "w+b")))
xerr(1, "fopen: %s", dirpath);
esnprintf(dirpath, sizeof(dirpath), "%s/menu.html", basepath);
if(!(fpmenu = fopen(dirpath, "w+b")))
xerr(1, "fopen: %s", dirpath);
esnprintf(dirpath, sizeof(dirpath), "%s/items.html", basepath);
if(!(fpitems = fopen(dirpath, "w+b")))
xerr(1, "fopen: %s", dirpath);
fputs("<html><head><link rel=\"stylesheet\" type=\"text/css\" href=\"../style.css\" />"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" /></head>"
"<body class=\"frame\"><div id=\"items\">", fpitems);
if(!(fcur = calloc(1, sizeof(struct feed))))
xerr(1, "calloc");
SLIST_INSERT_HEAD(&fhead, fcur, entry);
while(parseline(&line, &linesize, fields, FieldLast, '\t', stdin) > 0) {
feedname = fields[FieldFeedName];
if(feedname[0] == '\0') {
feedname = "unknown";
/* assume single feed (hide sidebar) */
if(!totalfeeds)
showsidebar = 0;
}
/* first of feed section or new feed section (differ from previous). */
if(!totalfeeds || strcmp(fcur->name, feedname)) {
/* make directory for feedname */
if(!(namelen = normalizepath(feedname, name, sizeof(name))))
continue;
esnprintf(dirpath, sizeof(dirpath), "%s/%s", basepath, name);
/* directory doesn't exist: try to create it. */
if(stat(dirpath, &st) == -1 && mkdir(dirpath, S_IRWXU) == -1)
xerr(1, "mkdir: %s", dirpath);
if(strlcpy(reldirpath, name, sizeof(reldirpath)) >= sizeof(reldirpath))
xerrx(1, "strlcpy: truncation");
if(!(f = calloc(1, sizeof(struct feed))))
xerr(1, "calloc");
if(!(f->name = strdup(feedname)))
xerr(1, "strdup");
SLIST_INSERT_AFTER(fcur, f, entry);
fcur = f;
/* end previous feed section. */
if(totalfeeds)
fputs("</table>\n", fpitems);
/* write menu link if new. */
if(fields[FieldFeedName][0] != '\0') {
fputs("<h2 id=\"", fpitems);
printfeednameid(fcur->name, fpitems);
fputs("\"><a href=\"#", fpitems);
printfeednameid(fcur->name, fpitems);
fputs("\">", fpitems);
fputs(fcur->name, fpitems);
fputs("</a></h2>\n", fpitems);
}
fputs("<table cellpadding=\"0\" cellspacing=\"0\">\n", fpitems);
totalfeeds++;
}
/* write content */
if(!(namelen = normalizepath(fields[FieldTitle], name, sizeof(name))))
continue;
esnprintf(filepath, sizeof(filepath), "%s/%s.html", dirpath, name);
esnprintf(relfilepath, sizeof(relfilepath), "%s/%s.html", reldirpath, name);
/* file doesn't exist yet and has write access */
if(access(filepath, F_OK) != 0) {
if(!(fpcontent = fopen(filepath, "w+b")))
xerr(1, "fopen: %s", filepath);
fputs("<html><head><link rel=\"stylesheet\" type=\"text/css\" href=\"../../style.css\" />"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" /></head>\n"
"<body class=\"frame\"><div class=\"content\">"
"<h2><a href=\"", fpcontent);
if(fields[FieldBaseSiteUrl][0] != '\0')
printlink(fields[FieldLink], fields[FieldBaseSiteUrl], fpcontent);
else
printlink(fields[FieldLink], fields[FieldFeedUrl], fpcontent);
fputs("\">", fpcontent);
printhtmlencoded(fields[FieldTitle], fpcontent);
fputs("</a></h2>", fpcontent);
printcontent(fields[FieldContent], fpcontent);
fputs("</div></body></html>", fpcontent);
fclose(fpcontent);
fpcontent = NULL;
}
/* write item. */
r = strtotime(fields[FieldUnixTimestamp], &parsedtime);
/* set modified and access time of file to time of item. */
if(r != -1) {
contenttime.actime = parsedtime;
contenttime.modtime = parsedtime;
utime(filepath, &contenttime);
}
isnew = (r != -1 && parsedtime >= comparetime) ? 1 : 0;
totalnew += isnew;
fcur->totalnew += isnew;
fcur->total++;
if(isnew)
fputs("<tr class=\"n\">", fpitems);
else
fputs("<tr>", fpitems);
fputs("<td nowrap valign=\"top\">", fpitems);
fputs(fields[FieldTimeFormatted], fpitems);
fputs("</td><td nowrap valign=\"top\">", fpitems);
if(isnew)
fputs("<b><u>", fpitems);
fputs("<a href=\"", fpitems);
fputs(relfilepath, fpitems);
fputs("\" target=\"content\">", fpitems);
printhtmlencoded(fields[FieldTitle], fpitems);
fputs("</a>", fpitems);
if(isnew)
fputs("</u></b>", fpitems);
fputs("</td></tr>\n", fpitems);
}
if(totalfeeds) {
fputs("</table>\n", fpitems);
}
fputs("\n</div></body>\n</html>", fpitems); /* div items */
if(showsidebar) {
fputs("<html><head>"
"<link rel=\"stylesheet\" type=\"text/css\" href=\"../style.css\" />\n"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
"</head><body class=\"frame\"><div id=\"sidebar\">", fpmenu);
SLIST_FOREACH(f, &fhead, entry) {
if(!f->name || f->name[0] == '\0')
continue;
if(f->totalnew)
fputs("<a class=\"n\" href=\"items.html#", fpmenu);
else
fputs("<a href=\"items.html#", fpmenu);
printfeednameid(f->name, fpmenu);
fputs("\" target=\"items\">", fpmenu);
if(f->totalnew > 0)
fputs("<b><u>", fpmenu);
fprintf(fpmenu, "%s (%lu)", f->name, f->totalnew);
if(f->totalnew > 0)
fputs("</u></b>", fpmenu);
fputs("</a><br/>\n", fpmenu);
}
fputs("</div></body></html>", fpmenu);
}
fputs("<!DOCTYPE html><html><head>\n\t<title>Newsfeed (", fpindex);
fprintf(fpindex, "%lu", totalnew);
fputs(")</title>\n\t<link rel=\"stylesheet\" type=\"text/css\" href=\"../style.css\" />\n"
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
"</head>\n", fpindex);
if(showsidebar) {
fputs("<frameset framespacing=\"0\" cols=\"200,*\" frameborder=\"1\">\n"
" <frame name=\"menu\" src=\"menu.html\" target=\"menu\">\n", fpindex);
} else {
fputs("<frameset framespacing=\"0\" cols=\"*\" frameborder=\"1\">\n", fpindex);
}
fputs("\t<frameset id=\"frameset\" framespacing=\"0\" cols=\"50%,50%\" frameborder=\"1\">\n"
"\t\t<frame name=\"items\" src=\"items.html\" target=\"items\">\n"
"\t\t<frame name=\"content\" target=\"content\">\n"
"\t</frameset>\n"
"</frameset>\n"
"</html>", fpindex);
cleanup();
return 0;
}
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