Gopher Proxy
gopher.conman.org:70 gopher.conman.org:70/0Boston:Src:src/callbacks.c
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/***********************************************
*
* Copyright 2001 by Sean Conner. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Comments, questions and criticisms can be sent to: sean@conman.org
*
************************************************/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <syslog.h>
#include <cgilib8/conf.h>
#include <cgilib8/htmltok.h>
#include <cgilib8/chunk.h>
#include <cgilib8/util.h>
#include "backend.h"
#include "blogutil.h"
#include "conversion.h"
/*****************************************************************/
static void tm_init(struct tm *ptm)
{
assert(ptm != NULL);
memset(ptm,0,sizeof(struct tm));
ptm->tm_isdst = -1;
}
/*********************************************************************/
static void print_nav_name(FILE *out,struct btm const *date,unit__e unit,char sep)
{
assert(out != NULL);
assert(date != NULL);
assert(sep >= ' ');
assert(sep <= '~');
switch(unit)
{
case UNIT_YEAR:
fprintf(out,"%04d",date->year);
break;
case UNIT_MONTH:
fprintf(out,"%04d%c%02d",date->year,sep,date->month);
break;
case UNIT_DAY:
fprintf(out,"%04d%c%02d%c%02d",date->year,sep,date->month,sep,date->day);
break;
case UNIT_PART:
fprintf(out,"%04d%c%02d%c%02d.%d",date->year,sep,date->month,sep,date->day,date->part);
break;
}
}
/********************************************************************/
static void print_nav_url(FILE *out,struct btm const *date,unit__e unit,char const *baseurl)
{
assert(out != NULL);
assert(date != NULL);
fprintf(out,"%s",baseurl);
print_nav_name(out,date,unit,'/');
}
/*******************************************************************/
static void print_nav_title(FILE *out,Blog *blog,struct btm const *date,unit__e unit)
{
BlogEntry *entry;
struct tm stm;
char buffer[BUFSIZ];
assert(out != NULL);
assert(date != NULL);
switch(unit)
{
case UNIT_YEAR:
fprintf(out,"%04d",date->year);
break;
case UNIT_MONTH:
tm_init(&stm);
stm.tm_year = date->year - 1900;
stm.tm_mon = date->month;
mktime(&stm);
strftime(buffer,sizeof(buffer),"%B %Y",&stm);
fputs(buffer,out);
break;
case UNIT_DAY:
tm_init(&stm);
stm.tm_year = date->year - 1900;
stm.tm_mon = date->month - 1;
stm.tm_mday = date->day;
mktime(&stm);
strftime(buffer,sizeof(buffer),"%A, %B %d, %Y",&stm);
fputs(buffer,out);
break;
case UNIT_PART:
entry = BlogEntryRead(blog,date);
if (entry)
{
assert(entry->valid);
fputs(entry->title,out);
BlogEntryFree(entry);
}
break;
default:
assert(0);
break;
}
}
/**********************************************************************/
static void handle_aflinks(HtmlToken token,char const *attrib,Blog *blog)
{
assert(token != NULL);
assert(attrib != NULL);
struct pair *src = HtmlParseGetPair(token,attrib);
if (src != NULL)
{
for (size_t i = 0 ; i < blog->config.affiliatenum ; i++)
{
if (strncmp(src->value,blog->config.affiliates[i].proto,blog->config.affiliates[i].psize) == 0)
{
char buffer[BUFSIZ];
struct pair *np;
snprintf(
buffer,
sizeof(buffer),
blog->config.affiliates[i].format,
&src->value[blog->config.affiliates[i].psize + 1]
);
np = PairCreate(attrib,buffer);
NodeInsert(&src->node,&np->node);
NodeRemove(&src->node);
PairFree(src);
return;
}
}
}
}
/*************************************************************************/
static bool uri_scheme(char const *s)
{
if (!isalpha(*s++)) return false;
while(*s)
{
if (*s == ':')
return true;
if (isalpha(*s) || isdigit(*s) || (*s == '+') || (*s == '-') || (*s == '.'))
s++;
else
return false;
}
return false;
}
/*************************************************************************/
static void fixup_uri(BlogEntry *entry,HtmlToken token,char const *attrib,Blog *blog,Request const *request)
{
struct pair *src;
struct pair *np;
assert(entry != NULL);
assert(entry->valid);
assert(token != NULL);
assert(attrib != NULL);
handle_aflinks(token,attrib,blog);
src = HtmlParseGetPair(token,attrib);
if ((src != NULL) && !uri_scheme(src->value))
{
char buffer[BUFSIZ];
char const *baseurl;
/*---------------------------------------------------------------
; If pointing to an anchor point, no further processing required
;----------------------------------------------------------------*/
if (src->value[0] == '#')
return;
/*-----------------------------------------------------
; Which URL to use? Full or partial?
;-----------------------------------------------------*/
if (request->f.fullurl)
baseurl = blog->config.url;
else
baseurl = blog->config.baseurl;
/*-----------------------------------------------------------------------
; all this to reassign the value, without ''knowing'' how the pair stuff
; actually works. Perhaps add a PairReValue() call or something?
;
; Anyway, check to see if baseurl ends in a '/', and if not, we then add
; one, otherwise, don't.
;
; If baseurl ends in a '/', and src->value does not start with a '/', we
; end up with a double '//'. We need to make sure we canonicalize all
; partial urls to either end in a '/', or not end in a '/'.
;------------------------------------------------------------------------*/
if (src->value[0] == '/')
snprintf(buffer,sizeof(buffer),"%s%s",baseurl,&src->value[1]);
else if (isdigit(src->value[0]))
snprintf(buffer,sizeof(buffer),"%s%s",baseurl,src->value);
else
snprintf(
buffer,
sizeof(buffer),
"%s%04d/%02d/%02d/%s",
baseurl,
entry->when.year,
entry->when.month,
entry->when.day,
src->value
);
np = PairCreate(attrib,buffer);
NodeInsert(&src->node,&np->node);
NodeRemove(&src->node);
PairFree(src);
}
}
/*************************************************************************/
static void output_entify(char const *msg,FILE *out)
{
assert(msg != NULL);
assert(out != NULL);
FILE *tmp = fentity_encode_onwrite(out);
fputs(msg,tmp);
fclose(tmp);
}
/***************************************************************
* TEMPLATE CALL BACK FUNCTIONS
****************************************************************/
static void cb_ad(FILE *out,void *data)
{
struct callback_data *cbd = data;
char fname[FILENAME_MAX];
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
snprintf(
fname,
sizeof(fname),
"%04d/%02d/%02d/%d.ad",
cbd->entry->when.year,
cbd->entry->when.month,
cbd->entry->when.day,
cbd->entry->when.part
);
cbd->ad = fopen(fname,"r");
if (cbd->ad == NULL) return;
generic_cb("ad",out,data);
fclose(cbd->ad);
cbd->ad = NULL;
}
/**********************************************************************/
static void cb_ad_content(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
/*-------------------------------------
; we might also do a generic_cb() here
;--------------------------------------*/
fcopy(out,cbd->ad);
}
/*********************************************************************/
static void cb_atom_categories(FILE *out,void *data)
{
struct callback_data *cbd = data;
String *cats;
size_t num;
assert(out != NULL);
assert(data != NULL);
cats = tag_split(&num,cbd->entry->class);
for (size_t i = 0 ; i < num ; i++)
{
cbd->adcat = fromstring(cats[i]);
generic_cb("categories",out,cbd);
free(cbd->adcat);
cbd->adcat = NULL;
}
free(cats);
}
/************************************************************************/
static void cb_atom_category(FILE *out,void *data)
{
struct callback_data *cbd = data;
FILE *eout;
assert(out != NULL);
assert(data != NULL);
eout = fentity_encode_onwrite(out);
if (eout == NULL) return;
fputs(cbd->adcat,eout);
fclose(eout);
}
/****************************************************************/
static void cb_atom_entry(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
/*----------------------------------------------------------------------
; XXX---this code is identical to cb_rss_item(), except for which template
; is being used. Could possibly use some refactoring here ...
;-----------------------------------------------------------------------*/
for
(
entry = (BlogEntry *)ListRemHead(&cbd->list);
NodeValid(&entry->node);
entry = (BlogEntry *)ListRemHead(&cbd->list)
)
{
assert(entry->valid);
cbd->entry = entry;
generic_cb("entry",out,data);
cbd->last = entry->when;
BlogEntryFree(entry);
}
cbd->entry = NULL;
}
/************************************************************************/
static void cb_begin_year(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fprintf(out,"%04d",cbd->blog->first.year);
}
/*******************************************************************/
static void cb_blog_adtag(FILE *out,void *data)
{
struct callback_data *cbd = data;
char *tag;
assert(out != NULL);
assert(data != NULL);
if (cbd->adtag == NULL)
tag = UrlEncodeString(cbd->blog->config.adtag);
else
tag = UrlEncodeString(cbd->adtag);
fputs(tag,out);
free(tag);
}
/*********************************************************************/
static void cb_blog_adtag_entity(FILE *out,void *data)
{
struct callback_data *cbd = data;
FILE *entityout;
char const *tag;
assert(out != NULL);
assert(data != NULL);
if (cbd->adtag == NULL)
tag = cbd->blog->config.adtag;
else
tag = cbd->adtag;
entityout = fentity_encode_onwrite(out);
if (entityout == NULL) return;
fputs(tag,entityout);
fclose(entityout);
}
/********************************************************************/
static void cb_blog_author(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.author.name,out);
}
/********************************************************************/
static void cb_blog_author_email(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.author.email,out);
}
/**********************************************************************/
static void cb_blog_class(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.class,out);
}
/**********************************************************************/
static void cb_blog_description(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.description,out);
}
/*********************************************************************/
static void cb_blog_name(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.name,out);
}
/*********************************************************************/
static void cb_blog_script(FILE *out,void *data)
{
char *script;
assert(out != NULL);
(void)data;
script = getenv("SCRIPT_NAME");
if (script)
fputs(script,out);
}
/**********************************************************************/
static void cb_blog_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->navunit == UNIT_PART)
{
BlogEntry *entry = (BlogEntry *)ListGetHead(&cbd->list);
if (NodeValid(&entry->node) && entry->valid)
fprintf(out,"%s - ",entry->title);
}
fputs(cbd->blog->config.name,out);
}
/*********************************************************************/
static void cb_blog_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_url(out,&cbd->entry->when,UNIT_DAY,cbd->blog->config.baseurl);
}
/*************************************************************************/
static void cb_blog_url_base(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.baseurl,out);
}
/*********************************************************************/
static void cb_blog_url_home(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->blog->config.url,out);
}
/**********************************************************************/
static void cb_comments(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->navunit != UNIT_PART)
return;
generic_cb("comments",out,data);
}
/*******************************************************************/
static void cb_comments_body(FILE *out,void *data)
{
struct callback_data *cbd = data;
FILE *in;
char fname[FILENAME_MAX];
assert(out != NULL);
assert(data != NULL);
snprintf(
fname,
sizeof(fname),
"%04d/%02d/%02d/%d.comments",
cbd->entry->when.year,
cbd->entry->when.month,
cbd->entry->when.day,
cbd->entry->when.part
);
in = fopen(fname,"r");
if (in == NULL) return;
fcopy(out,in);
fclose(in);
}
/*******************************************************************/
static void cb_comments_check(FILE *out,void *data)
{
struct callback_data *cbd = data;
char fname[BUFSIZ];
assert(out != NULL);
assert(data != NULL);
snprintf(
fname,
sizeof(fname),
"%04d/%02d/%02d/%d.comments",
cbd->entry->when.year,
cbd->entry->when.month,
cbd->entry->when.day,
cbd->entry->when.part
);
if (access(fname,R_OK) < 0)
fputs("No ",out);
fputs("Comments",out);
}
/********************************************************************/
static void cb_comments_filename(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fprintf(
out,
"%04d/%02d/%02d/%d.comments",
cbd->entry->when.year,
cbd->entry->when.month,
cbd->entry->when.day,
cbd->entry->when.part
);
}
/*******************************************************************/
static void cb_cond_hr(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation && (cbd->navunit == UNIT_PART))
return;
entry = cbd->entry;
assert(entry->valid);
if (btm_cmp_date(&entry->when,&cbd->last) == 0)
{
if (entry->when.part != cbd->last.part)
generic_cb("cond.hr",out,data);
}
}
/*********************************************************************/
static void cb_date_day(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_DAY,'-');
}
/*************************************************************************/
static void cb_date_day_normal(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
struct tm day;
char buffer[BUFSIZ];
assert(out != NULL);
assert(data != NULL);
tm_init(&day);
entry = cbd->entry;
assert(entry->valid);
day.tm_year = entry->when.year - 1900;
day.tm_mon = entry->when.month - 1;
day.tm_mday = entry->when.day;
mktime(&day);
strftime(buffer,sizeof(buffer),"%A, %B %d, %Y",&day);
fputs(buffer,out);
}
/**********************************************************************/
static void cb_date_day_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_url(out,&entry->when,UNIT_DAY,cbd->blog->config.baseurl);
}
/********************************************************************/
static void cb_edit(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.edit == false) return;
generic_cb("edit",out,data);
}
/*********************************************************************/
static void cb_edit_adtag(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->adtag != NULL)
output_entify(cbd->request->adtag,out);
}
/*********************************************************************/
static void cb_edit_author(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->origauthor != NULL)
output_entify(cbd->request->origauthor,out);
else
{
char const *name = get_remote_user();
output_entify(name,out);
}
}
/********************************************************************/
static void cb_edit_body(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->origbody)
output_entify(cbd->request->origbody,out);
}
/********************************************************************/
static void cb_edit_class(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->class)
output_entify(cbd->request->class,out);
}
/********************************************************************/
static void cb_edit_date(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->date != NULL)
output_entify(cbd->request->date,out);
else
{
char buffer[BUFSIZ];
time_t now = time(NULL);
struct tm *ptm = localtime(&now);
strftime(buffer,sizeof(buffer),"%Y/%m/%d",ptm);
output_entify(buffer,out);
}
}
/********************************************************************/
static void cb_edit_status(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->status != NULL)
output_entify(cbd->request->status,out);
}
/**********************************************************************/
static void cb_edit_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->title != NULL)
output_entify(cbd->request->title,out);
}
/********************************************************************/
static void cb_entry(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.htmldump)
{
fcopy(out,stdin);
return;
}
for
(
entry = (BlogEntry *)ListRemHead(&cbd->list);
NodeValid(&entry->node);
entry = (BlogEntry *)ListRemHead(&cbd->list)
)
{
assert(entry->valid);
cbd->entry = entry;
generic_cb("entry",out,data);
cbd->last = entry->when;
BlogEntryFree(entry);
}
cbd->entry = NULL;
}
/**********************************************************************/
static void cb_entry_author(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
fputs(cbd->entry->author,out);
}
/*************************************************************************/
static void cb_entry_body(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
FILE *in;
HtmlToken token;
int t;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
in = fmemopen(entry->body,strlen(entry->body),"r");
if (in == NULL) return;
token = HtmlParseNew(in);
if (token == NULL)
{
fclose(in);
return;
}
while((t = HtmlParseNext(token)) != T_EOF)
{
if (t == T_TAG)
{
/*---------------------------------------------
; checked in order of *my* usage.
;----------------------------------------------*/
if (strcmp(HtmlParseValue(token),"A") == 0)
fixup_uri(entry,token,"HREF",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"BLOCKQUOTE") == 0)
fixup_uri(entry,token,"CITE",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"IMG") == 0)
{
fixup_uri(entry,token,"SRC",cbd->blog,cbd->request);
fixup_uri(entry,token,"LONGDESC",cbd->blog,cbd->request);
fixup_uri(entry,token,"USEMAP",cbd->blog,cbd->request);
}
else if (strcmp(HtmlParseValue(token),"Q") == 0)
fixup_uri(entry,token,"CITE",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"INS") == 0)
fixup_uri(entry,token,"CITE",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"DEL") == 0)
fixup_uri(entry,token,"CITE",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"FORM") == 0)
fixup_uri(entry,token,"ACTION",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"INPUT") == 0)
{
fixup_uri(entry,token,"SRC",cbd->blog,cbd->request);
fixup_uri(entry,token,"USEMAP",cbd->blog,cbd->request);
}
else if (strcmp(HtmlParseValue(token),"AREA") == 0)
fixup_uri(entry,token,"HREF",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"OBJECT") == 0)
{
fixup_uri(entry,token,"CLASSID",cbd->blog,cbd->request);
fixup_uri(entry,token,"CODEBASE",cbd->blog,cbd->request);
fixup_uri(entry,token,"DATA",cbd->blog,cbd->request);
fixup_uri(entry,token,"ARCHIVE",cbd->blog,cbd->request);
fixup_uri(entry,token,"USEMAP",cbd->blog,cbd->request);
}
/*-----------------------------------------------------
; elements that can only appear in the <HEAD> section
; so commented out for now but here for reference
;------------------------------------------------------*/
#if 0
else if (strcmp(HtmlParseValue(token),"LINK") == 0)
fixup_uri(entry,token,"HREF",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"BASE") == 0)
fixup_uri(entry,token,"HREF",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"HEAD") == 0)
fixup_uri(entry,token,"PROFILE",cbd->blog,cbd->request);
else if (strcmp(HtmlParseValue(token),"SCRIPT") == 0)
{
fixup_uri(entry,token,"SRC",cbd->blog,cbd->request);
fixup_uri(entry,token,"FOR",cbd->blog,cbd->request);
}
#endif
HtmlParsePrintTag(token,out);
}
else if (t == T_STRING)
fputs(HtmlParseValue(token),out);
else if (t == T_COMMENT)
fprintf(out,"<!%s>",HtmlParseValue(token));
}
HtmlParseFree(token);
fclose(in);
}
/**********************************************************************/
static void cb_entry_body_entified(FILE *out,void *data)
{
assert(out != NULL);
assert(data != NULL);
FILE *eout = fentity_encode_onwrite(out);
if (eout == NULL) return;
cb_entry_body(eout,data);
fclose(eout);
}
/*********************************************************************/
static void cb_entry_body_jsonified(FILE *out,void *data)
{
assert(out != NULL);
assert(data != NULL);
FILE *jout = fjson_encode_onwrite(out);
if (jout == NULL) return;
cb_entry_body(jout,data);
fclose(jout);
}
/**********************************************************************/
static void cb_entry_class(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
char const *msg = cbd->blog->config.class;
if (cbd->entry != NULL)
msg = cbd->entry->class;
else
{
if (cbd->navunit == UNIT_PART)
{
BlogEntry *entry = (BlogEntry *)ListGetHead(&cbd->list);
if (NodeValid(&entry->node) && entry->valid)
if (!empty_string(entry->class))
msg = entry->class;
}
}
fputs(msg,out);
}
/***********************************************************************/
static void cb_entry_class_jsonified(FILE *out,void *data)
{
struct callback_data *cbd = data;
String *cats;
size_t num;
assert(out != NULL);
assert(data != NULL);
cats = tag_split(&num,cbd->entry->class);
for (size_t i = 0 ; i < num ; i++)
{
fputc('"',out);
FILE *jout = fjson_encode_onwrite(out);
if (jout)
{
fwrite(cats[i].d,cats[i].s,1,jout);
fclose(jout);
}
fputc('"',out);
if (i < num - 1)
fputc(',',out);
}
free(cats);
}
/***********************************************************************/
static void cb_entry_cond_author(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
if (strcmp(cbd->blog->config.author.name,cbd->entry->author) != 0)
generic_cb("entry.cond.author",out,data);
}
/*********************************************************************/
static void cb_entry_cond_date(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
if (btm_cmp_date(&entry->when,&cbd->last) != 0)
generic_cb("entry.cond.date",out,data);
}
/**********************************************************************/
static void cb_entry_date(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_url(out,&cbd->entry->when,UNIT_DAY,cbd->blog->config.baseurl);
}
/*********************************************************************/
static void cb_entry_description(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
char const *msg = cbd->blog->config.description;
if (cbd->navunit == UNIT_PART)
{
BlogEntry *entry = (BlogEntry *)ListGetHead(&cbd->list);
if (NodeValid(&entry->node) && entry->valid)
{
if (!empty_string(entry->status))
msg = entry->status;
else if (!empty_string(entry->title))
msg = entry->title;
}
}
fputs(msg,out);
}
/*********************************************************************/
static void cb_entry_id(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_DAY,'-');
}
/**********************************************************************/
static void cb_entry_linkdate(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_PART,'/');
}
/**********************************************************************/
static void cb_entry_linkdated(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_DAY,'-');
}
/**********************************************************************/
static void cb_entry_name(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_PART,'-');
}
/***********************************************************************/
static void cb_entry_path(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_name(out,&entry->when,UNIT_PART,'/');
}
/**********************************************************************/
static void cb_entry_pubdate(FILE *out,void *data)
{
struct callback_data *cbd = data;
char buffer[12];
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
strftime(buffer,sizeof(buffer),"%F",localtime(&cbd->entry->timestamp));
fputs(buffer,out);
}
/*********************************************************************/
static void cb_entry_pubdatetime(FILE *out,void *data)
{
struct callback_data *cbd = data;
char buffer[24];
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
strftime(buffer,sizeof(buffer),"%FT%TZ",gmtime(&cbd->entry->timestamp));
fputs(buffer,out);
}
/********************************************************************/
static void cb_entry_status(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->entry->status,out);
}
/************************************************************************/
static void cb_entry_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
fputs(cbd->entry->title,out);
}
/***********************************************************************/
static void cb_entry_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
BlogEntry *entry;
assert(out != NULL);
assert(data != NULL);
entry = cbd->entry;
assert(entry->valid);
print_nav_url(out,&entry->when,UNIT_PART,cbd->blog->config.baseurl);
}
/**********************************************************************/
static void cb_generator(FILE *out,void *data)
{
assert(out != NULL);
(void)data;
fprintf(
out,
"mod_blog %s, %s, %s"
"",
PROG_VERSION,
cgilib_version,
LUA_RELEASE
);
}
/*********************************************************************/
static void cb_json_item(FILE *out,void *data)
{
struct callback_data *cbd = data;
char const *sep = "";
assert(out != NULL);
assert(data != NULL);
for
(
BlogEntry *entry = (BlogEntry *)ListRemHead(&cbd->list);
NodeValid(&entry->node);
entry = (BlogEntry *)ListRemHead(&cbd->list)
)
{
assert(entry->valid);
cbd->entry = entry;
fputs(sep,out);
generic_cb("item",out,data);
cbd->last = entry->when;
BlogEntryFree(entry);
sep = ",";
}
cbd->entry = NULL;
}
/*********************************************************************/
static void cb_navigation_bar(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false) return;
generic_cb("navigation.bar",out,data);
}
/*******************************************************************/
static void cb_navigation_bar_next(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navnext == false) return;
generic_cb("navigation.bar.next",out,data);
}
/*******************************************************************/
static void cb_navigation_bar_prev(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navprev == false) return;
generic_cb("navigation.bar.prev",out,data);
}
/*******************************************************************/
static void cb_navigation_current(FILE *out,void *data)
{
assert(out != NULL);
generic_cb("navigation.current",out,data);
}
/********************************************************************/
static void cb_navigation_current_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_url(out,&cbd->blog->last,UNIT_MONTH,cbd->blog->config.baseurl);
}
/*********************************************************************/
static void cb_navigation_first_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false)
print_nav_title(out,cbd->blog,&cbd->blog->first,UNIT_PART);
else
print_nav_title(out,cbd->blog,&cbd->blog->first,cbd->navunit);
}
/*******************************************************************/
static void cb_navigation_first_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false)
print_nav_url(out,&cbd->blog->first,UNIT_PART,cbd->blog->config.baseurl);
else
print_nav_url(out,&cbd->blog->first,cbd->navunit,cbd->blog->config.baseurl);
}
/********************************************************************/
static void cb_navigation_last_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false)
print_nav_title(out,cbd->blog,&cbd->blog->last,UNIT_PART);
else
print_nav_title(out,cbd->blog,&cbd->blog->last,cbd->navunit);
}
/*****************************************************************/
static void cb_navigation_last_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false)
print_nav_url(out,&cbd->blog->last,UNIT_PART,cbd->blog->config.baseurl);
else
print_nav_url(out,&cbd->blog->last,cbd->navunit,cbd->blog->config.baseurl);
}
/******************************************************************/
static void cb_navigation_link(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navigation == false) return;
generic_cb("navigation.link",out,data);
}
/********************************************************************/
static void cb_navigation_link_next(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navnext == false) return;
generic_cb("navigation.link.next",out,data);
}
/*******************************************************************/
static void cb_navigation_link_prev(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->request->f.navprev == false) return;
generic_cb("navigation.link.prev",out,data);
}
/*******************************************************************/
static void cb_navigation_next_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_title(out,cbd->blog,&cbd->next,cbd->navunit);
}
/********************************************************************/
static void cb_navigation_next_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_url(out,&cbd->next,cbd->navunit,cbd->blog->config.baseurl);
}
/*******************************************************************/
static void cb_navigation_prev_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_title(out,cbd->blog,&cbd->previous,cbd->navunit);
}
/*******************************************************************/
static void cb_navigation_prev_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
print_nav_url(out,&cbd->previous,cbd->navunit,cbd->blog->config.baseurl);
}
/********************************************************************/
static void cb_now_year(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fprintf(out,"%04d",cbd->blog->now.year);
}
/*******************************************************************/
static void cb_request_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
char *tum;
assert(out != NULL);
assert(data != NULL);
tum = tumbler_canonical(&cbd->request->tumbler);
fprintf(out,"%s%s",cbd->blog->config.url,tum);
free(tum);
}
/***********************************************************************/
static void cb_robots_index(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
if (cbd->navunit == UNIT_PART)
fputs("index",out);
else
fputs("noindex",out);
}
/********************************************************************/
static void cb_rss_item(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
for
(
BlogEntry *entry = (BlogEntry *)ListRemHead(&cbd->list);
NodeValid(&entry->node);
entry = (BlogEntry *)ListRemHead(&cbd->list)
)
{
assert(entry->valid);
cbd->entry = entry;
generic_cb("item",out,data);
cbd->last = entry->when;
BlogEntryFree(entry);
}
cbd->entry = NULL;
}
/******************************************************************/
static void cb_rss_item_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
assert(cbd->entry->valid);
fprintf(out,"%s",cbd->blog->config.url);
print_nav_name(out,&cbd->entry->when,UNIT_PART,'/');
}
/********************************************************************/
static void cb_rss_pubdate(FILE *out,void *data)
{
struct callback_data *cbd = data;
struct tm *ptm;
char buffer[BUFSIZ];
assert(out != NULL);
assert(data != NULL);
ptm = gmtime(&cbd->blog->tnow);
strftime(buffer,sizeof(buffer),"%a, %d %b %Y %H:%M:%S GMT",ptm);
fputs(buffer,out);
}
/********************************************************************/
static void cb_rss_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fprintf(out,"%s",cbd->blog->config.url);
}
/*******************************************************************/
static void cb_update_time(FILE *out,void *data)
{
struct callback_data *cbd = data;
char tmpbuf[24];
assert(out != NULL);
assert(data != NULL);
strftime(tmpbuf,sizeof(tmpbuf),"%FT%TZ",gmtime(&cbd->blog->tnow));
fputs(tmpbuf,out);
}
/*******************************************************************/
static void cb_webmention(FILE *out,void *data)
{
struct callback_data *cbd = data;
char fname[FILENAME_MAX];
int rc;
assert(out != NULL);
assert(data != NULL);
snprintf(
fname,
sizeof(fname),
"%04d/%02d/%02d/%d.webmention",
cbd->entry->when.year,
cbd->entry->when.month,
cbd->entry->when.day,
cbd->entry->when.part
);
cbd->wm = fopen(fname,"r");
if (cbd->wm == NULL) return;
rc = fcntl(
fileno(cbd->wm),
F_SETLKW,
&(struct flock){
.l_type = F_RDLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 0,
}
);
if (rc < 0)
{
syslog(LOG_ERR,"fcntl('%s',F_SETLKW) = %s",fname,strerror(errno));
fclose(cbd->wm);
return;
}
generic_cb("webmention",out,data);
rc = fcntl(
fileno(cbd->wm),
F_SETLKW,
&(struct flock){
.l_type = F_UNLCK,
.l_start = 0,
.l_whence = SEEK_SET,
.l_len = 0,
}
);
if (rc < 0)
syslog(LOG_ERR,"fcntl('%s',F_UNLCK) = %s",fname,strerror(errno));
fclose(cbd->wm);
cbd->wm = NULL;
}
/*******************************************************************/
static void cb_webmention_item(FILE *out,void *data)
{
struct callback_data *cbd = data;
size_t buflen = 0;
ssize_t len;
assert(out != NULL);
assert(data != NULL);
while((len = getline(&cbd->wmurl,&buflen,cbd->wm)) != -1)
{
char *p = strchr(cbd->wmurl,'\t');
if (p == NULL)
cbd->wmtitle = cbd->wmurl;
else
{
*p++ = '\0';
cbd->wmtitle = p;
}
cbd->wmurl[len - 1] = '\0'; /* remove trailing '\n' */
generic_cb("webmention.item",out,data);
free(cbd->wmurl);
cbd->wmurl = NULL;
cbd->wmtitle = NULL;
buflen = 0;
}
free(cbd->wmurl);
}
/*******************************************************************/
static void cb_webmention_title(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->wmtitle,out);
}
/*******************************************************************/
static void cb_webmention_url(FILE *out,void *data)
{
struct callback_data *cbd = data;
assert(out != NULL);
assert(data != NULL);
fputs(cbd->wmurl,out);
}
/*******************************************************************/
static void cb_xyzzy(FILE *out,void *data)
{
assert(out != NULL);
(void)data;
fputs("Nothing happens.",out);
}
/********************************************************************/
void generic_cb(char const *which,FILE *out,void *data)
{
/*-----------------------------------------------------
; the following table needs to be in alphabetical order
;------------------------------------------------------*/
static struct chunk_callback const callbacks[] =
{
{ "ad" , cb_ad } , /* template "ad" */
{ "ad.content" , cb_ad_content } ,
{ "atom.categories" , cb_atom_categories } , /* template "categories" */
{ "atom.category" , cb_atom_category } ,
{ "atom.entry" , cb_atom_entry } , /* template "entry" */
{ "begin.year" , cb_begin_year } ,
{ "blog.adtag" , cb_blog_adtag } ,
{ "blog.adtag.entity" , cb_blog_adtag_entity } ,
{ "blog.author" , cb_blog_author } ,
{ "blog.author.email" , cb_blog_author_email } ,
{ "blog.class" , cb_blog_class } ,
{ "blog.description" , cb_blog_description } ,
{ "blog.name" , cb_blog_name } ,
{ "blog.script" , cb_blog_script } ,
{ "blog.title" , cb_blog_title } ,
{ "blog.url" , cb_blog_url } ,
{ "blog.url.base" , cb_blog_url_base } ,
{ "blog.url.home" , cb_blog_url_home } ,
{ "comments" , cb_comments } , /* template "comments" */
{ "comments.body" , cb_comments_body } ,
{ "comments.check" , cb_comments_check } ,
{ "comments.filename" , cb_comments_filename } ,
{ "cond.hr" , cb_cond_hr } , /* template "cond.hr" */
{ "date.day" , cb_date_day } ,
{ "date.day.normal" , cb_date_day_normal } ,
{ "date.day.url" , cb_date_day_url } ,
{ "edit" , cb_edit } , /* template "edit" */
{ "edit.adtag" , cb_edit_adtag } ,
{ "edit.author" , cb_edit_author } ,
{ "edit.body" , cb_edit_body } ,
{ "edit.class" , cb_edit_class } ,
{ "edit.date" , cb_edit_date } ,
{ "edit.status" , cb_edit_status } ,
{ "edit.title" , cb_edit_title } ,
{ "entry" , cb_entry } , /* template "entry" */
{ "entry.author" , cb_entry_author } ,
{ "entry.body" , cb_entry_body } ,
{ "entry.body.entified" , cb_entry_body_entified } ,
{ "entry.body.jsonified" , cb_entry_body_jsonified } ,
{ "entry.class" , cb_entry_class } ,
{ "entry.class.jsonified" , cb_entry_class_jsonified } ,
{ "entry.cond.author" , cb_entry_cond_author } , /* template "entry.cond.author" */
{ "entry.cond.date" , cb_entry_cond_date } , /* template "entry.cond.date" */
{ "entry.date" , cb_entry_date } ,
{ "entry.description" , cb_entry_description } ,
{ "entry.id" , cb_entry_id } ,
{ "entry.linkdate" , cb_entry_linkdate } ,
{ "entry.linkdated" , cb_entry_linkdated } ,
{ "entry.name" , cb_entry_name } ,
{ "entry.path" , cb_entry_path } ,
{ "entry.pubdate" , cb_entry_pubdate } ,
{ "entry.pubdatetime" , cb_entry_pubdatetime } ,
{ "entry.status" , cb_entry_status } ,
{ "entry.title" , cb_entry_title } ,
{ "entry.url" , cb_entry_url } ,
{ "generator" , cb_generator } ,
{ "json.item" , cb_json_item } , /* template "item" */
{ "navigation.bar" , cb_navigation_bar } , /* template "navigation.bar" */
{ "navigation.bar.next" , cb_navigation_bar_next } , /* template "navigation.bar.next" */
{ "navigation.bar.prev" , cb_navigation_bar_prev } , /* template "navigation.bar.prev" */
{ "navigation.current" , cb_navigation_current } , /* template "navigation.current" */
{ "navigation.current.url" , cb_navigation_current_url } ,
{ "navigation.first.title" , cb_navigation_first_title } ,
{ "navigation.first.url" , cb_navigation_first_url } ,
{ "navigation.last.title" , cb_navigation_last_title } ,
{ "navigation.last.url" , cb_navigation_last_url } ,
{ "navigation.link" , cb_navigation_link } , /* template "navigation.link" */
{ "navigation.link.next" , cb_navigation_link_next } , /* template "navigation.link.next" */
{ "navigation.link.prev" , cb_navigation_link_prev } , /* template "navigation.link.prev" */
{ "navigation.next.title" , cb_navigation_next_title } ,
{ "navigation.next.url" , cb_navigation_next_url } ,
{ "navigation.prev.title" , cb_navigation_prev_title } ,
{ "navigation.prev.url" , cb_navigation_prev_url } ,
{ "now.year" , cb_now_year } ,
{ "request.url" , cb_request_url } ,
{ "robots.index" , cb_robots_index } ,
{ "rss.item" , cb_rss_item } , /* template "item" */
{ "rss.item.url" , cb_rss_item_url } ,
{ "rss.pubdate" , cb_rss_pubdate } ,
{ "rss.url" , cb_rss_url } ,
{ "update.time" , cb_update_time } ,
{ "webmention" , cb_webmention } , /* template "webmention" */
{ "webmention.item" , cb_webmention_item } , /* template "webmention.item" */
{ "webmention.title" , cb_webmention_title } ,
{ "webmention.url" , cb_webmention_url } ,
{ "xyzzy" , cb_xyzzy } ,
};
assert(which != NULL);
assert(out != NULL);
assert(data != NULL);
struct callback_data *cbd = data;
Chunk templates = ChunkNew(cbd->template->template,callbacks,sizeof(callbacks) / sizeof(callbacks[0]));
ChunkProcess(templates,which,out,data);
ChunkFree(templates);
fflush(out);
}
/*********************************************************************/
void generic_main(FILE *out,struct callback_data *cbd)
{
char buf[64];
assert(out != NULL);
assert(cbd != NULL);
if (cbd->request->f.cgiget)
{
if ((cbd->status == HTTP_OKAY) && HttpNotModified(cbd->blog->lastmod))
{
fprintf(
out,
"Status: %d\r\n"
"Content-Length: 0\r\n"
"Last-Modified: %s\r\n"
"\r\n",
HTTP_NOTMODIFIED,
HttpTimeStamp(buf,64,cbd->blog->lastmod)
);
return;
}
fprintf(
out,
"Status: %d\r\n"
"Content-Type: text/html\r\n"
"Last-Modified: %s\r\n"
"\r\n",
cbd->status,
HttpTimeStamp(buf,64,cbd->blog->lastmod)
);
}
generic_cb("main",out,cbd);
}
/*********************************************************************/
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