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mod_virgule.c
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mod_virgule.c
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/*
* mod_virgule.c -- Apache module for building community sites
*
* Copyright 1999 Raph Levien <raph@acm.org>
*
* Released under GPL v2.
*/
#define VIRGULE_VERSION "mod_virgule-rsr/1.41-20070308"
#include <string.h>
/* gnome-xml includes */
#include <libxml/parser.h>
#include <libxml/tree.h>
/* Apache includes */
#include <apr.h>
#include <apr_strings.h>
#include <httpd.h>
#include <http_log.h>
#include <http_core.h>
#include <http_config.h>
#include <http_request.h>
#include <http_protocol.h>
#include <ap_config.h>
/* mod_virgule includes */
#include "private.h"
#include "buffer.h"
#include "db.h"
#include "req.h"
#include "certs.h"
#include "site.h"
#include "apache_util.h"
#include "acct_maint.h"
#include "aggregator.h"
#include "hashtable.h"
#include "eigen.h"
#include "diary.h"
#include "article.h"
#include "proj.h"
#include "rss_export.h"
#include "style.h"
#include "tmetric.h"
#include "auth.h"
#include "db_ops.h"
#include "util.h"
#include "xmlrpc.h"
#include "db_xml.h"
#include "xml_util.h"
#include "rating.h"
/* Process specific pool */
static apr_pool_t *ppool = NULL;
/* Thread private key */
static apr_threadkey_t *tkey;
/* Per-directory configuration record structure. */
typedef struct {
char *dir;
char *db;
apr_array_header_t *pass_dirs;
} virgule_dir_conf;
/* Declare the module name so configuration routines can find it.
Module structure is filled in at the end of this file */
module AP_MODULE_DECLARE_DATA virgule_module;
/**
* Per-directory initialization function. This creates the per-directory
* configuration structure and initializes the contents. The structure
* will be filled in by the per-directory command handlers
**/
static void *
virgule_create_dir_config (apr_pool_t *p, char *dir)
{
virgule_dir_conf *result = (virgule_dir_conf *)apr_palloc (p, sizeof (virgule_dir_conf));
result->dir = apr_pstrdup (p, dir);
result->db = NULL;
result->pass_dirs = apr_array_make(p, 16, sizeof(char *));
return result;
}
/**
* Apache config file option handler (called by Apache).
* Sets the Virgule database from the httpd.conf option
**/
static const char *
set_virgule_db (cmd_parms *parms, void *mconfig, const char *db)
{
apr_finfo_t finfo;
virgule_dir_conf *cfg = (virgule_dir_conf *)mconfig;
/* temp!!! used by ad function in site.c */
srand((unsigned int) time(NULL));
if( apr_stat(&finfo,db,APR_FINFO_TYPE,parms->pool) != APR_SUCCESS ||
finfo.filetype != APR_DIR )
return apr_pstrcat(parms->pool,"Invalid VirguleDB path: ",db,NULL);
cfg->db = (char *)apr_pstrdup (parms->pool, db);
return NULL;
}
/**
* set_virgule_pass: An Apache config file option handler (called by Apache
* once for each directory name supplied after the VirgulePass directive in
* the httpd.conf file). The directories are added to a passthrough list
* used by xlat_handler to accept or decline requests.
**/
static const char *
set_virgule_pass (cmd_parms *parms, void *mconfig, const char *dir)
{
virgule_dir_conf *cfg = (virgule_dir_conf *)mconfig;
*(char **)apr_array_push(cfg->pass_dirs) = (char *)apr_pstrdup(parms->pool, dir);
return NULL;
}
/* Prints header data. Used only in info_page() */
static int header_trace (void *data, const char *key, const char *val)
{
Buffer *b = (Buffer *)data;
virgule_buffer_printf (b, "%s: <b>%s</b><br />\n", key, val);
return 1;
}
/* Displays a useful diagnostic page if /admin/info.html is requested */
static int
info_page (VirguleReq *vr)
{
request_rec *r = vr->r;
virgule_dir_conf *cfg = (virgule_dir_conf *)ap_get_module_config (r->per_dir_config, &virgule_module);
Buffer *b = vr->b;
int i;
char tm[APR_CTIME_LEN];
char *args;
r->content_type = "text/html; charset=UTF-8";
virgule_buffer_puts(b, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n"
"<html>\n<head><title>mod_virgule diagnostics page</title>\n"
"<style type=\"text/css\">\n"
" #diag td { border: 1px solid black; background: #ddeeff; }\n"
" #diag td+td { background: #ffffff; }\n"
"</style>\n</head>\n<body bgcolor=white>");
virgule_buffer_puts (b, "<h1>mod_virgule diagnostics</h1>\n<table id=\"diag\">\n");
apr_ctime(tm,vr->priv->mtime);
virgule_buffer_printf (b, "<tr><td>mod_virgule version</td><td>%s</td></tr>", VIRGULE_VERSION);
virgule_buffer_printf (b, "<tr><td>Timestamp of loaded configuration</td><td>%s</td></tr>\n", tm);
virgule_buffer_printf (b, "<tr><td>Site name (vr->priv->site_name)</td><td>%s</td></tr>\n", vr->priv->site_name);
virgule_buffer_printf (b, "<tr><td>Admin email</td><td>%s</td></tr>\n", vr->priv->admin_email);
virgule_buffer_printf (b, "<tr><td>Google Analytics ID</td><td>%s</td></tr>\n", vr->priv->google_analytics);
virgule_buffer_printf (b, "<tr><td>FOAF SHA-1 Test</td><td>Input [mailto:%s] Output [%s]</td></tr>\n",
vr->priv->admin_email,
virgule_sha1 (vr->r->pool, apr_psprintf (vr->r->pool, "mailto:%s", vr->priv->admin_email)));
virgule_buffer_printf (b, "<tr><td>Unparsed uri (r->unparse_uri)</td><td>%s</td></tr>\n", r->unparsed_uri);
virgule_buffer_printf (b, "<tr><td>uri (r->uri)</td><td>%s</td></tr>\n", r->uri);
virgule_buffer_printf (b, "<tr><td>adjusted uri (vr->uri)</td><td>%s</td></tr>\n",vr->uri);
virgule_buffer_printf (b, "<tr><td>base_uri (vr->priv->base_uri)</td><td>%s</td></tr>\n",vr->priv->base_uri);
virgule_buffer_printf (b, "<tr><td>base_path (vr->priv->base_path)</td><td>%s</td></tr>\n",vr->priv->base_path);
virgule_buffer_printf (b, "<tr><td>path prefix (vr->prefix)</td><td>%s</td></tr>", vr->prefix);
virgule_buffer_printf (b, "<tr><td>filename (r->filename)</td><td>%s</td></tr>\n", r->filename);
virgule_buffer_printf (b, "<tr><td>path_info (r->path_info)</td><td>%s</td></tr>\n", r->path_info);
virgule_buffer_printf (b, "<tr><td>document root (ap_document_root())</td><td>%s</td></tr>\n", ap_document_root (r));
virgule_buffer_printf (b, "<tr><td>Request protocol (r->protocol)</td><td>%s</td></tr>\n", r->protocol);
virgule_buffer_printf (b, "<tr><td>Request hostname (r->hostname)</td><td>%s</td></tr>\n", r->hostname);
virgule_buffer_printf (b, "<tr><td>Request handler (r->handler)</td><td>%s</td></tr>\n", r->handler);
virgule_buffer_printf (b, "<tr><td>Apache thread ID (apr_os_thread_current())</td><td>%lu</td></tr>\n", apr_os_thread_current());
if (cfg)
virgule_buffer_printf (b, "<tr><td>Configured virgule DB</td><td>"
"[cfg->db=\"%s\"] [cfg->dir=\"%s\"]</td></tr>\n",
cfg->db, cfg->dir);
/* Dump pass-through directory names read from httpd.conf */
virgule_buffer_puts (b, "<tr><td>Configured Pass-through Directories:</td><td><ul>");
if (cfg->pass_dirs)
{
for ( i = 0; i < cfg->pass_dirs->nelts; i++ )
virgule_buffer_printf (b, "<li><b>%s</b></li>", ((char **)cfg->pass_dirs->elts)[i]);
virgule_buffer_puts (b, "</ul></td></tr>\n");
}
else
{
virgule_buffer_puts (b, "<li><b>None</b></li></ul></td></tr>");
}
args = vr->args;
if (args)
virgule_buffer_printf (b, "<tr><td>URL args</td><td>%s</td></tr>\n", args);
virgule_auth_user (vr);
if (vr->u)
virgule_buffer_printf (b, "<tr><td>Authenticated user</td><td>[%s]</td></tr>\n", vr->u);
virgule_buffer_puts (b, "<tr><td>Headers in</td><td>");
apr_table_do (header_trace, b, r->headers_in, NULL);
virgule_buffer_puts (b, "</td></tr>\n<tr><td>Headers out</td><td>");
apr_table_do (header_trace, b, r->headers_out, NULL);
virgule_buffer_puts (b, "</td></tr>");
if (vr->priv->cert_level_names)
{
const char **l;
virgule_buffer_puts (b, "<tr><td>Certification levels</td><td><ol>");
for (l = vr->priv->cert_level_names; *l; l++)
virgule_buffer_printf (b, "<li>%s</li>\n", *l);
virgule_buffer_puts (b, "</ol></td></tr>\n");
}
if (vr->priv->editors)
{
const char **s;
virgule_buffer_puts (b, "<tr><td>Editors</td><td><ul>");
for (s = vr->priv->editors; *s; s++)
virgule_buffer_printf (b, "<li>%s</li>\n", *s);
virgule_buffer_puts (b, "</ul></td></tr>\n");
}
if (vr->priv->article_post_by_editors_only)
virgule_buffer_puts (b, "<tr><td>Article posts by editors only</td><td>On</td></tr>\n");
else
virgule_buffer_puts (b, "<tr><td>Article posts by editors only</td><td>Off</td></tr>\n");
if (vr->priv->seeds)
{
const char **s;
virgule_buffer_puts (b, "<tr><td>Trust metric seeds</td><td><ul>");
for (s = vr->priv->seeds; *s; s++)
virgule_buffer_printf (b, "<li>%s</li>\n", *s);
virgule_buffer_puts (b, "</ul></td></tr>\n");
}
if (vr->priv->caps)
{
const int *c;
virgule_buffer_puts (b, "<tr><td>Trust flow capacities</td><td><ol>");
for (c = vr->priv->caps; *c; c++)
virgule_buffer_printf (b, "<li>%d</li>\n", *c);
virgule_buffer_puts (b, "</ol></td></tr>\n");
}
if (vr->priv->special_users)
{
const char **u;
virgule_buffer_puts (b, "<tr><td>Special (admin) users</td><td><ul>");
for (u = vr->priv->special_users; *u; u++)
virgule_buffer_printf (b, "<li>%s</li>\n", *u);
virgule_buffer_puts (b, "</ul></td></tr>\n");
}
if (vr->priv->render_diaryratings)
virgule_buffer_puts (b, "<tr><td>Diary rating</td><td>On</td></tr>\n");
else
virgule_buffer_puts (b, "<tr><td>Diary rating</td><td>Off</td></tr>\n");
virgule_buffer_printf (b, "<tr><td>Recentlog style</td><td>%s</td></tr>\n",
vr->priv->recentlog_as_posted ? "As Posted" : "Unique");
virgule_buffer_printf (b, "<tr><td>Account creation</td><td>%s</td></tr>\n",
vr->priv->allow_account_creation ? "allowed" : "not allowed");
virgule_buffer_printf (b, "<tr><td>Account spam threshold</td><td>%i points</td></tr>\n",
vr->priv->acct_spam_threshold);
virgule_buffer_printf (b, "<tr><td>Article Topics (categories)</td><td>%s</td></tr>\n",
vr->priv->use_article_topics ? "on" : "off");
virgule_buffer_printf (b, "<tr><td>Article title links</td><td>%s</td></tr>\n",
vr->priv->use_article_title_links ? "on" : "off");
virgule_buffer_printf (b, "<tr><td>Article title maximum length</td><td>%i chars</td></tr>\n",
vr->priv->article_title_maxsize);
virgule_buffer_printf (b, "<tr><td>Article editable period</td><td>%i days</td></tr>\n",
vr->priv->article_days_to_edit);
virgule_buffer_puts (b, "</table></body></html>\n");
return virgule_send_response (vr);
}
/**
* private_destroy: Destroys the virgule thread specific pool
**/
static void private_destroy(void *data)
{
apr_pool_destroy(((virgule_private_t *)data)->pool);
}
/**
* virgule_child_init: Called for each child process immediately after
* start up.
**/
static void virgule_child_init(apr_pool_t *p, server_rec *s)
{
ppool = s->process->pool;
apr_status_t status;
/* Create a thread private key for later use */
if((status = apr_threadkey_private_create(&tkey, private_destroy, ppool))
!= APR_SUCCESS)
ap_log_error(APLOG_MARK,APLOG_CRIT,status,s,"mod_virgule: Unable to create thread private key");
xmlInitParser();
}
/**
* virgule_init_handler: Module Initialization Handler. This function is
* called once during server initialization. The module version number and
* name is passed back to Apache at this point.
**/
static int virgule_init_handler(apr_pool_t *pconf, apr_pool_t *plog,
apr_pool_t *ptemp, server_rec *s)
{
ap_add_version_component(pconf, VIRGULE_VERSION);
return OK;
}
static const AllowedTag *
read_allowed_tag (VirguleReq *vr, xmlNode *node)
{
xmlNode *node_attributes, *child;
char *name, *text;
char **p;
int empty;
apr_array_header_t *stack;
name = virgule_xml_find_child_string (node, "name", NULL);
if (!name)
{
virgule_send_error_page (vr, vERROR, "Config error",
"Allowed tag name not defined.");
return NULL;
}
text = virgule_xml_find_child_string (node, "canbeempty", NULL);
empty = text && !strcmp (text, "yes");
stack = apr_array_make (vr->priv->pool, 8, sizeof (char *));
node_attributes = virgule_xml_find_child (node, "allowedattributes");
if (node_attributes)
{
for (child = node_attributes->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE)
continue;
if (xmlStrcmp (child->name, (xmlChar *)"attribute"))
{
virgule_send_error_page (vr, vERROR, "Config error",
"Unknown element <tt>%s</tt> in allowed attributes.",
child->name);
return NULL;
}
text = virgule_xml_get_string_contents (child);
p = (char **)apr_array_push (stack);
*p = apr_pstrdup (vr->priv->pool, virgule_xml_get_string_contents (child));
}
}
p = (char **)apr_array_push (stack);
*p = NULL;
return virgule_add_allowed_tag (vr, name, empty, (char **)stack->elts);
}
/* make sure this doesn't clash with any HTTP status codes */
#define CONFIG_READ 1000
/**
* read_site_config - Reads the config.xml file containing the site
* configuration data. The temporary request pool is used during the read
* but the actual config data is moved to the thread private pool so it
* will be available for later requests.
**/
static int
read_site_config (VirguleReq *vr)
{
xmlDoc *doc;
xmlNode *node;
apr_array_header_t *stack;
xmlNode *child;
char *uri;
const char *text, *url;
const char **c_item;
int *i_item;
const AllowedTag **t_item;
const NavOption **n_item;
const Topic **at_item;
apr_pool_t *privpool = NULL;
time_t now;
struct tm tm;
/* Allocate thread private data struct and memory pool */
if (apr_pool_create(&privpool,ppool) != APR_SUCCESS)
return virgule_send_error_page (vr, vERROR, "config",
"Unable to create thread private memory pool");
if (!(vr->priv = apr_pcalloc(privpool,sizeof(virgule_private_t))))
return virgule_send_error_page (vr, vERROR, "config",
"Unable to allocate virgule_private_t");
vr->priv->pool = privpool;
/* Don't bother reading in the tmetric data until we need it */
vr->priv->tmetric = NULL;
vr->priv->tm_pool = NULL;
vr->priv->tm_mtime = 0L;
/* Figure out the local time zone offset using thread-safe POSIX func */
now = time(NULL);
localtime_r(&now, &tm);
vr->priv->utc_offset = tm.tm_gmtoff;
/* Load and parse the site configuration */
doc = virgule_db_xml_get (vr->r->pool, vr->db, "config.xml");
if (doc == NULL)
return virgule_send_error_page (vr, vERROR, "config",
"Unable to read the site config.");
/* read the site name */
vr->priv->site_name = apr_pstrdup(vr->priv->pool, virgule_xml_find_child_string (doc->xmlRootNode, "name", ""));
if (vr->priv->site_name != NULL && !strlen (vr->priv->site_name))
return virgule_send_error_page (vr, vERROR, "config", "No name found in site config.");
/* read the admin email */
vr->priv->admin_email = apr_pstrdup(vr->priv->pool, virgule_xml_find_child_string (doc->xmlRootNode, "adminemail", ""));
if (vr->priv->admin_email != NULL && !strlen (vr->priv->admin_email))
return virgule_send_error_page (vr, vERROR, "config", "No admin email found in site config.");
/* read the google analytics ID */
vr->priv->google_analytics = apr_pstrdup(vr->priv->pool, virgule_xml_find_child_string (doc->xmlRootNode, "googleanalytics", ""));
if (vr->priv->google_analytics != NULL && !strlen (vr->priv->google_analytics))
vr->priv->google_analytics = NULL;
/* read the site's base uri, and trim any trailing slashes */
uri = virgule_xml_find_child_string (doc->xmlRootNode, "baseuri", "");
if (uri == NULL)
return virgule_send_error_page (vr, vERROR, "config", "No base URI found in site config.");
do
{
int len = strlen (uri);
if (!len)
return virgule_send_error_page (vr, vERROR, "config",
"No base URI found in site config.");
if (uri[len - 1] != '/')
break;
uri[len - 1] = 0;
}
while (1);
vr->priv->base_uri = apr_pstrdup(vr->priv->pool, uri);
/* read the project style */
text = virgule_xml_find_child_string (doc->xmlRootNode, "projstyle", "raph");
if (!strcasecmp (text, "Raph"))
vr->priv->projstyle = PROJSTYLE_RAPH;
else if (!strcasecmp (text, "Nick"))
vr->priv->projstyle = PROJSTYLE_NICK;
else if (!strcasecmp (text, "Steve"))
vr->priv->projstyle = PROJSTYLE_STEVE;
else
return virgule_send_error_page (vr, vERROR, "config",
"Unknown project style found in site config.");
/* read the recentlog style */
text = virgule_xml_find_child_string (doc->xmlRootNode, "recentlogstyle", "Unique");
if (!strcasecmp (text, "Unique"))
vr->priv->recentlog_as_posted = 0;
else if (!strcasecmp (text, "As posted"))
vr->priv->recentlog_as_posted = 1;
else
return virgule_send_error_page (vr, vERROR, "config",
"Unknown recentlog style found in site config.");
/* read the cert levels */
/* cert levels must be processed before processing action levels */
stack = apr_array_make (vr->priv->pool, 10, sizeof (char *));
node = virgule_xml_find_child (doc->xmlRootNode, "levels");
if (node == NULL)
return virgule_send_error_page (vr, vERROR, "config",
"No cert levels found in site config.");
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"level"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in cert levels.",
child->name);
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in cert levels.");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
}
if (stack->nelts < 2)
return virgule_send_error_page (vr, vERROR, "config",
"There must be at least two cert levels.");
c_item = (const char **)apr_array_push (stack);
*c_item = NULL;
vr->priv->cert_level_names = (const char **)stack->elts;
/* read the action levels (the cert level at which users can perform
specific actions such as creating projects, posting articles, etc.
Action levels cannot be processed *before* the cert levels */
/* read the article post action level */
vr->priv->level_articlepost = 0;
text = virgule_xml_find_child_string (doc->xmlRootNode, "articlepost", NULL);
if(text)
vr->priv->level_articlepost = virgule_cert_level_from_name(vr, text);
/* read the article reply action level */
vr->priv->level_articlereply = 0;
text = virgule_xml_find_child_string (doc->xmlRootNode, "articlereply", NULL);
if(text)
vr->priv->level_articlereply = virgule_cert_level_from_name(vr, text);
/* read the project create action level */
vr->priv->level_projectcreate = 0;
text = virgule_xml_find_child_string (doc->xmlRootNode, "projectcreate", NULL);
if(text)
vr->priv->level_projectcreate = virgule_cert_level_from_name(vr, text);
/* read the blog syndication action level */
vr->priv->level_blogsyndicate = 0;
text = virgule_xml_find_child_string (doc->xmlRootNode, "blogsyndicate", NULL);
if(text)
vr->priv->level_blogsyndicate = virgule_cert_level_from_name(vr, text);
/* read the optional list of editors */
vr->priv->editors = NULL;
stack = apr_array_make (vr->priv->pool, 10, sizeof (char *));
node = virgule_xml_find_child (doc->xmlRootNode, "editors");
if (node != NULL)
{
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"editor"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in editors.",
child->name);
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in seeds.");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
}
if (stack->nelts > 0)
{
c_item = (const char **)apr_array_push (stack);
*c_item = NULL;
vr->priv->editors = (const char **)stack->elts;
}
}
/* read the trust metric seeds */
stack = apr_array_make (vr->priv->pool, 10, sizeof (char *));
node = virgule_xml_find_child (doc->xmlRootNode, "seeds");
if (node == NULL)
return virgule_send_error_page (vr, vERROR, "config",
"No seeds found in site config.");
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"seed"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in seeds.",
child->name);
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in seeds.");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
}
if (stack->nelts < 1)
return virgule_send_error_page (vr, vERROR, "config",
"There must be at least one seed.");
c_item = (const char **)apr_array_push (stack);
*c_item = NULL;
vr->priv->seeds = (const char **)stack->elts;
/* read the capacities */
stack = apr_array_make (vr->priv->pool, 10, sizeof (int));
node = virgule_xml_find_child (doc->xmlRootNode, "caps");
if (node == NULL)
return virgule_send_error_page (vr, vERROR, "config",
"No capacities found in site config.");
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"cap"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in capacities.",
child->name);
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in capacities.");
i_item = (int *)apr_array_push (stack);
*i_item = atoi (text);
}
if (stack->nelts < 1)
return virgule_send_error_page (vr, vERROR, "config",
"There must be at least one capacity.");
i_item = (int *)apr_array_push (stack);
*i_item = 0;
vr->priv->caps = (const int *)stack->elts;
/* read the special users */
stack = apr_array_make (vr->priv->pool, 10, sizeof (char *));
node = virgule_xml_find_child (doc->xmlRootNode, "specialusers");
if (node)
{
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"specialuser"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in special users.",
child->name);
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in special users.");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
}
}
c_item = (const char **)apr_array_push (stack);
*c_item = NULL;
vr->priv->special_users = (const char **)stack->elts;
/* read the translations */
stack = apr_array_make (vr->priv->pool, 10, sizeof (char *));
node = virgule_xml_find_child (doc->xmlRootNode, "translations");
if (node)
{
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"translate"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in translations.",
child->name);
text = virgule_xml_get_prop (vr->r->pool, child, (xmlChar *)"from");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
text = virgule_xml_get_prop (vr->r->pool, child, (xmlChar *)"to");
c_item = (const char **)apr_array_push (stack);
*c_item = apr_pstrdup(vr->priv->pool, text);
}
}
c_item = (const char **)apr_array_push (stack);
*c_item = NULL;
vr->priv->trans = (const char **)stack->elts;
/* read the diary rating selection */
text = virgule_xml_find_child_string (doc->xmlRootNode, "diaryrating", "");
if (!strcasecmp (text, "on"))
vr->priv->render_diaryratings = 1;
else
vr->priv->render_diaryratings = 0;
/* read the new accounts allowed selection */
text = virgule_xml_find_child_string (doc->xmlRootNode, "accountcreation", "");
if (!strcasecmp (text, "off"))
vr->priv->allow_account_creation = 0;
else
vr->priv->allow_account_creation = 1;
/* read the new accounts charset allowed style */
text = virgule_xml_find_child_string (doc->xmlRootNode, "accountextendedcharset", "");
if (!strcasecmp (text, "off"))
vr->priv->allow_account_extendedcharset = 0;
else
vr->priv->allow_account_extendedcharset = 1;
/* read the article title links setting */
text = virgule_xml_find_child_string (doc->xmlRootNode, "articletitlelinks", "");
if (!strcasecmp (text, "off"))
vr->priv->use_article_title_links = 0;
else
vr->priv->use_article_title_links = 1;
/* read the article posts by editors only setting */
text = virgule_xml_find_child_string (doc->xmlRootNode, "articlepostbyeditorsonly", "");
if (!strcasecmp (text, "on"))
vr->priv->article_post_by_editors_only = 1;
else
vr->priv->article_post_by_editors_only = 0;
/* read the max article title size setting */
text = virgule_xml_find_child_string (doc->xmlRootNode, "articletitlesize", "");
vr->priv->article_title_maxsize = atoi (text);
if(vr->priv->article_title_maxsize == 0)
vr->priv->article_title_maxsize = 80;
/* read the number of days after posting to allow article editing */
text = virgule_xml_find_child_string (doc->xmlRootNode, "articledays2edit", "");
vr->priv->article_days_to_edit = atoi (text);
if(vr->priv->article_days_to_edit == 0)
vr->priv->article_days_to_edit = 0;
/* read the article topic setting */
text = virgule_xml_find_child_string (doc->xmlRootNode, "articletopics", "");
if (!strcasecmp (text, "off"))
vr->priv->use_article_topics = 0;
else
vr->priv->use_article_topics = 1;
/* read the article topics */
stack = apr_array_make (vr->priv->pool, 10, sizeof (Topic *));
node = virgule_xml_find_child (doc->xmlRootNode, "topics");
if (node)
{
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"topic"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in article topic.",
child->name);
url = virgule_xml_get_prop (vr->r->pool, child, (xmlChar *)"url");
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in article topic.");
at_item = (const Topic **)apr_array_push (stack);
*at_item = virgule_add_topic (vr, text, url);
}
}
at_item = (const Topic **)apr_array_push (stack);
*at_item = NULL;
vr->priv->topics = (const Topic **)stack->elts;
/* read the account spam score threshold setting */
text = virgule_xml_find_child_string (doc->xmlRootNode, "accountspamthreshold", "");
vr->priv->acct_spam_threshold = atoi (text);
if(vr->priv->acct_spam_threshold == 0)
vr->priv->acct_spam_threshold = 15;
/* read the sitemap navigation options */
stack = apr_array_make (vr->priv->pool, 10, sizeof (NavOption *));
node = virgule_xml_find_child (doc->xmlRootNode, "sitemap");
if (node)
{
for (child = node->children; child; child = child->next)
{
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"option"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in sitemap options.",
child->name);
url = virgule_xml_get_prop (vr->r->pool, child, (xmlChar *)"url");
text = virgule_xml_get_string_contents (child);
if (!text)
return virgule_send_error_page (vr, vERROR, "config",
"Empty element in allowed sitemap options.");
n_item = (const NavOption **)apr_array_push (stack);
*n_item = virgule_add_nav_option (vr, text, url);
}
}
n_item = (const NavOption **)apr_array_push (stack);
*n_item = NULL;
vr->priv->nav_options = (const NavOption **)stack->elts;
/* read the allowed tags */
stack = apr_array_make (vr->priv->pool, 10, sizeof (AllowedTag *));
node = virgule_xml_find_child (doc->xmlRootNode, "allowedtags");
if (node)
{
for (child = node->children; child; child = child->next)
{
const AllowedTag *allowed_tag;
if (child->type != XML_ELEMENT_NODE) {
continue;
}
if (xmlStrcmp (child->name, (xmlChar *)"tag"))
return virgule_send_error_page (vr, vERROR, "config",
"Unknown element <em>%s</em> in allowed tags.",
child->name);
allowed_tag = read_allowed_tag (vr, child);
if (!allowed_tag)
return !CONFIG_READ;
t_item = (const AllowedTag **)apr_array_push (stack);
*t_item = allowed_tag;
}
}
t_item = (const AllowedTag **)apr_array_push (stack);
*t_item = NULL;
vr->priv->allowed_tags = (const AllowedTag **)stack->elts;
/* debug
ap_log_rerror(APLOG_MARK, APLOG_CRIT, APR_SUCCESS, vr->r,"Debug: read config.xml");
*/
return CONFIG_READ;
}
/**
* virgule_handler: Generates the content to fill a request
*/
static int virgule_handler(request_rec *r)
{
virgule_dir_conf *cfg;
int status;
apr_finfo_t finfo;
apr_status_t ap_status = APR_SUCCESS;
VirguleReq *vr;
if(strcmp(r->handler, "virgule")) {
return DECLINED;
}
cfg = (virgule_dir_conf *)ap_get_module_config (r->per_dir_config, &virgule_module);
/* Set libxml2 to old-style, incorrect handling of whitespace. This can
be removed once all existing xml code is updated to handle blank nodes */
xmlKeepBlanksDefault(0);
vr = (VirguleReq *)apr_pcalloc (r->pool, sizeof (VirguleReq));
vr->r = r;
vr->b = virgule_buffer_new (r->pool);
vr->hb = virgule_buffer_new (r->pool);
vr->tb = NULL;
vr->db = virgule_db_new_filesystem (r->pool, cfg->db); /* hack */
if (cfg->dir && !strncmp (r->uri, cfg->dir, strlen (cfg->dir)))
{
vr->prefix = cfg->dir;
vr->uri = r->uri + strlen (cfg->dir);
}
else
{
vr->prefix = "";
vr->uri = r->uri;
}
vr->u = NULL;
vr->args = virgule_get_args (r);
vr->priv = NULL;
vr->render_data = apr_table_make (r->pool, 4);
/* Get our thread private data, if any */
if((ap_status = apr_threadkey_private_get((void *)(&vr->priv),tkey))
!= APR_SUCCESS)
{
ap_log_rerror(APLOG_MARK, APLOG_CRIT, ap_status, r,
"mod_virgule: Cannot get thread private data");
return HTTP_INTERNAL_SERVER_ERROR;
}
/* Stat the site config file in case it got updated */
apr_stat(&finfo, ap_make_full_path (r->pool, cfg->db, "config.xml"),
APR_FINFO_MIN, r->pool);
/* If config file was updated, dump and reload private data */
if(vr->priv && (finfo.mtime != vr->priv->mtime))
{
if(vr->priv->tm_pool != NULL)
apr_pool_destroy(vr->priv->tm_pool);
apr_pool_destroy(vr->priv->pool);
vr->priv = NULL;
}
if(!vr->priv)
{
/* read and parse config.xml */
if(read_site_config (vr) != CONFIG_READ)
{
ap_log_rerror(APLOG_MARK, APLOG_CRIT, ap_status, r,
"mod_virgule: Cannot load site config file");
return HTTP_INTERNAL_SERVER_ERROR;
}
/* Save config to thread private data area */
if(apr_threadkey_private_set(vr->priv, tkey) != APR_SUCCESS)
{
apr_pool_destroy(vr->priv->pool);
ap_log_rerror(APLOG_MARK, APLOG_CRIT, ap_status, r,
"mod_virgule: Cannot set thread private data");
return HTTP_INTERNAL_SERVER_ERROR;
}
/* set mtime for config file */
vr->priv->mtime = finfo.mtime;
/* remember the base path */
vr->priv->base_path = apr_pstrdup(vr->priv->pool, cfg->db);
}
/* set buffer translations */
virgule_buffer_set_translations (vr->b, vr->priv->trans);
status = virgule_rss_serve (vr);
if (status != DECLINED)
return status;
status = virgule_site_serve (vr);
if (status != DECLINED)
return status;
status = virgule_acct_maint_serve (vr);
if (status != DECLINED)
return status;
status = virgule_diary_serve (vr);
if (status != DECLINED)
return status;
status = virgule_article_serve (vr);
if (status != DECLINED)
return status;
status = virgule_proj_serve (vr);
if (status != DECLINED)
return status;
status = virgule_xmlrpc_serve (vr);
if (status != DECLINED)
return status;
if (vr->priv->render_diaryratings)
{
status = virgule_rating_serve (vr);
if (status != DECLINED)
return status;
}