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/* HTDescript.c
* File Descriptions
*
* Authors:
* AL Ari Luotonen <luotonen@dxcern.cern.ch>
*
* History:
* 30 Mar 94 AL Written from scratch.
*
*
*/
#include "HTUtils.h"
#include "HTList.h"
#include "HTAAUtil.h"
#include "HTAccess.h"
#include "HTFile.h"
#define MAX_LINE_LEN 256
PUBLIC char * HTDescriptionFile = ".www_descript";
PUBLIC BOOL HTPeekTitles = YES;
/*
* Get the descriptions for files in the given directory.
* The return value is then later passed as an argument
* to HTGetDescription() which returns a description
* string for a single file.
*/
PUBLIC HTList * HTReadDescriptions ARGS1(char *, dirname)
{
char * name = NULL;
FILE * fp = NULL;
HTList * list = NULL;
char buf[MAX_LINE_LEN + 1];
if (!dirname) return NULL;
name = (char*)malloc(strlen(dirname) + strlen(HTDescriptionFile) + 2);
if (!name) outofmem(__FILE__, "HTReadDescriptions");
sprintf(name, "%s/%s", dirname, HTDescriptionFile);
fp = fopen(name, "r");
if (!fp) {
CTRACE(stderr, "DirBrowse... No description file %s\n", name);
FREE(name);
return NULL;
} else {
if (TRACE)
fprintf(stderr, "DirBrowse... Description file found %s\n", name);
}
list = HTList_new();
while (fgets(buf, MAX_LINE_LEN, fp)) {
char * s = buf;
char * t = NULL;
char * d = NULL;
while (*s && WHITE(*s)) s++; /* Skip initial whitespace */
if (*s!='d' && *s!='D') continue; /* Junk non-description lines*/
t = s+1;
while (*t && !WHITE(*t)) t++; /* Find the end of the keyword */
while (*t && WHITE(*t)) t++; /* Find the beginning of template */
if (*t) {
d = t+1;
while (*d && !WHITE(*d)) d++; /* Find end of template */
if (*d) {
*d++ = 0; /* Terminate template */
while (*d && WHITE(*d)) d++; /* Find start of description */
if (*d) {
char * p = d;
while (*p && *p!='\r' && *p!='\n') p++;
*p = 0; /* Terminate description */
}
}
}
if (t && d && *t && *d) {
char * stuff = malloc(strlen(t) + strlen(d) + 2);
if (!stuff) outofmem(__FILE__, "HTDirReadDescriptions");
sprintf(stuff, "%s %s", t, d);
HTList_addObject(list, (void*)stuff);
CTRACE(stderr, "Description. %s\n", stuff);
}
}
fclose(fp);
FREE(name);
return list;
}
PUBLIC void HTFreeDescriptions ARGS1(HTList *, descriptions)
{
HTList * cur = descriptions;
char * str;
if (descriptions) {
while ((str = (char*)HTList_nextObject(cur)))
free(str);
HTList_delete(descriptions);
}
}
PRIVATE char * HTPeekTitle ARGS2(char *, dirname,
char *, filename)
{
#define PEEK_BUF_SIZE 200
char * name;
FILE * fp;
char buf[PEEK_BUF_SIZE + 1];
int status;
char * cur;
char * end;
static char * ret = NULL;
char * p;
BOOL space = YES;
FREE(ret); /* From previous call */
CTRACE(stderr, "HTPeekTitle. called, dirname=%s filename=%s\n",
dirname ? dirname : "-null-",
filename ? filename : "-null-");
if (!dirname || !filename) return NULL;
name = (char*)malloc(strlen(dirname) + strlen(filename) + 2);
if (!name) outofmem(__FILE__, "HTPeekTitle");
sprintf(name, "%s/%s", dirname, filename);
fp = fopen(name, "r");
if (!fp) {
CTRACE(stderr, "HTPeekTitle. fopen failed\n");
goto cleanup;
}
status = fread(buf, 1, PEEK_BUF_SIZE, fp);
fclose(fp);
if (status <= 0) goto cleanup;
buf[status] = 0;
cur = buf;
while ((cur = strchr(cur,'<'))) {
if (!strncasecomp(cur+1,"TITLE>",6)) {
cur += 7;
end = strchr(cur,'<');
while (end && strncasecomp(end+1, "/TITLE>", 7))
end = strchr(end+1, '<');
if (end) *end = 0;
p = ret = (char*)malloc(strlen(cur) + 1);
if (!ret) outofmem(__FILE__, "HTPeekTitle");
while (*cur) {
if (WHITE(*cur)) {
if (!space) {
space = YES;
*p++ = ' ';
}
}
else {
if (space) space = NO;
*p++ = *cur;
}
cur++;
}
*p = 0;
goto cleanup;
}
cur++;
}
cleanup:
CTRACE(stderr, "HTPeekTitle. returning %c%s%c\n",
ret ? '"' : '-', ret ? ret : "null", ret ? '"' : '-');
FREE(name);
return ret;
}
/*
* Returns a description string (that must not be freed!)
* for a file with name name in directory dirname.
* Description file contents is in descriptions list.
*/
PUBLIC char * HTGetDescription ARGS4(HTList *, descriptions,
char *, dirname,
char *, filename,
HTFormat, format)
{
HTList * cur = descriptions;
char * t;
if (!dirname || !filename) return NULL;
/*
* descriptions may well be NULL in which case we may still
* want to peek the titles.
*/
while ((t = (char*)HTList_nextObject(cur))) {
char * d = strchr(t,' ');
if (!d) continue;
*d = 0;
if (HTAA_templateMatch(t,filename)) {
*d = ' ';
return d+1;
}
*d = ' ';
}
if (HTPeekTitles && format == WWW_HTML)
return HTPeekTitle(dirname, filename);
else
return NULL;
}
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