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source: trunk/server/common/oursrc/httpdmods/mod_vhost_ldap.c @ 1576

Last change on this file since 1576 was 1463, checked in by andersk, 16 years ago
mod_vhost_ldap: Copy the server_rec instead of corrupting it in place.
Property svn:eol-style set to `native`
File size: 23.9 KB

Line
1	/* ============================================================
2	* Copyright (c) 2003-2004, Ondrej Sury
3	* All rights reserved.
4	*
5	* Licensed under the Apache License, Version 2.0 (the "License");
6	* you may not use this file except in compliance with the License.
7	* You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*
17	*/
18
19	/*
20	* mod_vhost_ldap.c --- read virtual host config from LDAP directory
21	*/
22
23	#define CORE_PRIVATE
24
25	#include <unistd.h>
26
27	#include "httpd.h"
28	#include "http_config.h"
29	#include "http_core.h"
30	#include "http_log.h"
31	#include "http_request.h"
32	#include "apr_version.h"
33	#include "apr_ldap.h"
34	#include "apr_strings.h"
35	#include "apr_reslist.h"
36	#include "util_ldap.h"
37
38	#if !defined(APU_HAS_LDAP) && !defined(APR_HAS_LDAP)
39	#error mod_vhost_ldap requires APR-util to have LDAP support built in
40	#endif
41
42	#if !defined(WIN32) && !defined(OS2) && !defined(BEOS) && !defined(NETWARE)
43	#define HAVE_UNIX_SUEXEC
44	#endif
45
46	#ifdef HAVE_UNIX_SUEXEC
47	#include "unixd.h" /* Contains the suexec_identity hook used on Unix */
48	#endif
49
50	#define MIN_UID 100
51	#define MIN_GID 100
52	const char USERDIR[] = "web_scripts";
53
54	module AP_MODULE_DECLARE_DATA vhost_ldap_module;
55
56	typedef enum {
57	MVL_UNSET, MVL_DISABLED, MVL_ENABLED
58	} mod_vhost_ldap_status_e;
59
60	typedef struct mod_vhost_ldap_config_t {
61	mod_vhost_ldap_status_e enabled; /* Is vhost_ldap enabled? */
62
63	/* These parameters are all derived from the VhostLDAPURL directive */
64	char url; / String representation of LDAP URL */
65
66	char host; / Name of the LDAP server (or space separated list) */
67	int port; /* Port of the LDAP server */
68	char basedn; / Base DN to do all searches from */
69	int scope; /* Scope of the search */
70	char filter; / Filter to further limit the search */
71	deref_options deref; /* how to handle alias dereferening */
72
73	char binddn; / DN to bind to server (can be NULL) */
74	char bindpw; / Password to bind to server (can be NULL) */
75
76	int have_deref; /* Set if we have found an Deref option */
77	int have_ldap_url; /* Set if we have found an LDAP url */
78
79	int secure; /* True if SSL connections are requested */
80
81	char fallback; / Fallback virtual host */
82
83	} mod_vhost_ldap_config_t;
84
85	typedef struct mod_vhost_ldap_request_t {
86	char dn; / The saved dn from a successful search */
87	char name; / ServerName */
88	char admin; / ServerAdmin */
89	char docroot; / DocumentRoot */
90	char cgiroot; / ScriptAlias */
91	char uid; / Suexec Uid */
92	char gid; / Suexec Gid */
93	} mod_vhost_ldap_request_t;
94
95	char *attributes[] =
96	{ "apacheServerName", "apacheDocumentRoot", "apacheScriptAlias", "apacheSuexecUid", "apacheSuexecGid", "apacheServerAdmin", 0 };
97
98	static int total_modules;
99
100	#if (APR_MAJOR_VERSION >= 1)
101	static APR_OPTIONAL_FN_TYPE(uldap_connection_close) *util_ldap_connection_close;
102	static APR_OPTIONAL_FN_TYPE(uldap_connection_find) *util_ldap_connection_find;
103	static APR_OPTIONAL_FN_TYPE(uldap_cache_comparedn) *util_ldap_cache_comparedn;
104	static APR_OPTIONAL_FN_TYPE(uldap_cache_compare) *util_ldap_cache_compare;
105	static APR_OPTIONAL_FN_TYPE(uldap_cache_checkuserid) *util_ldap_cache_checkuserid;
106	static APR_OPTIONAL_FN_TYPE(uldap_cache_getuserdn) *util_ldap_cache_getuserdn;
107	static APR_OPTIONAL_FN_TYPE(uldap_ssl_supported) *util_ldap_ssl_supported;
108
109	static void ImportULDAPOptFn(void)
110	{
111	util_ldap_connection_close = APR_RETRIEVE_OPTIONAL_FN(uldap_connection_close);
112	util_ldap_connection_find = APR_RETRIEVE_OPTIONAL_FN(uldap_connection_find);
113	util_ldap_cache_comparedn = APR_RETRIEVE_OPTIONAL_FN(uldap_cache_comparedn);
114	util_ldap_cache_compare = APR_RETRIEVE_OPTIONAL_FN(uldap_cache_compare);
115	util_ldap_cache_checkuserid = APR_RETRIEVE_OPTIONAL_FN(uldap_cache_checkuserid);
116	util_ldap_cache_getuserdn = APR_RETRIEVE_OPTIONAL_FN(uldap_cache_getuserdn);
117	util_ldap_ssl_supported = APR_RETRIEVE_OPTIONAL_FN(uldap_ssl_supported);
118	}
119	#endif
120
121	static int mod_vhost_ldap_post_config(apr_pool_t p, apr_pool_t plog, apr_pool_t ptemp, server_rec s)
122	{
123	module **m;
124
125	/* Stolen from modules/generators/mod_cgid.c */
126	total_modules = 0;
127	for (m = ap_preloaded_modules; *m != NULL; m++)
128	total_modules++;
129
130	/* make sure that mod_ldap (util_ldap) is loaded */
131	if (ap_find_linked_module("util_ldap.c") == NULL) {
132	ap_log_error(APLOG_MARK, APLOG_ERR\|APLOG_NOERRNO, 0, s,
133	"Module mod_ldap missing. Mod_ldap (aka. util_ldap) "
134	"must be loaded in order for mod_vhost_ldap to function properly");
135	return HTTP_INTERNAL_SERVER_ERROR;
136
137	}
138
139	ap_add_version_component(p, MOD_VHOST_LDAP_VERSION);
140
141	return OK;
142	}
143
144	static void *
145	mod_vhost_ldap_create_server_config (apr_pool_t p, server_rec s)
146	{
147	mod_vhost_ldap_config_t *conf =
148	(mod_vhost_ldap_config_t *)apr_pcalloc(p, sizeof (mod_vhost_ldap_config_t));
149
150	conf->enabled = MVL_UNSET;
151	conf->have_ldap_url = 0;
152	conf->have_deref = 0;
153	conf->binddn = NULL;
154	conf->bindpw = NULL;
155	conf->deref = always;
156	conf->fallback = NULL;
157
158	return conf;
159	}
160
161	static void *
162	mod_vhost_ldap_merge_server_config(apr_pool_t p, void parentv, void *childv)
163	{
164	mod_vhost_ldap_config_t parent = (mod_vhost_ldap_config_t ) parentv;
165	mod_vhost_ldap_config_t child = (mod_vhost_ldap_config_t ) childv;
166	mod_vhost_ldap_config_t *conf =
167	(mod_vhost_ldap_config_t *)apr_pcalloc(p, sizeof(mod_vhost_ldap_config_t));
168
169	if (child->enabled == MVL_UNSET) {
170	conf->enabled = parent->enabled;
171	} else {
172	conf->enabled = child->enabled;
173	}
174
175	if (child->have_ldap_url) {
176	conf->have_ldap_url = child->have_ldap_url;
177	conf->url = child->url;
178	conf->host = child->host;
179	conf->port = child->port;
180	conf->basedn = child->basedn;
181	conf->scope = child->scope;
182	conf->filter = child->filter;
183	conf->secure = child->secure;
184	} else {
185	conf->have_ldap_url = parent->have_ldap_url;
186	conf->url = parent->url;
187	conf->host = parent->host;
188	conf->port = parent->port;
189	conf->basedn = parent->basedn;
190	conf->scope = parent->scope;
191	conf->filter = parent->filter;
192	conf->secure = parent->secure;
193	}
194	if (child->have_deref) {
195	conf->have_deref = child->have_deref;
196	conf->deref = child->deref;
197	} else {
198	conf->have_deref = parent->have_deref;
199	conf->deref = parent->deref;
200	}
201
202	conf->binddn = (child->binddn ? child->binddn : parent->binddn);
203	conf->bindpw = (child->bindpw ? child->bindpw : parent->bindpw);
204
205	conf->fallback = (child->fallback ? child->fallback : parent->fallback);
206
207	return conf;
208	}
209
210	/*
211	* Use the ldap url parsing routines to break up the ldap url into
212	* host and port.
213	*/
214	static const char mod_vhost_ldap_parse_url(cmd_parms cmd,
215	void *dummy,
216	const char *url)
217	{
218	int result;
219	apr_ldap_url_desc_t *urld;
220	#if (APR_MAJOR_VERSION >= 1)
221	apr_ldap_err_t *result_err;
222	#endif
223
224	mod_vhost_ldap_config_t *conf =
225	(mod_vhost_ldap_config_t *)ap_get_module_config(cmd->server->module_config,
226	&vhost_ldap_module);
227
228	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
229	cmd->server, "[mod_vhost_ldap.c] url parse: `%s'",
230	url);
231
232	#if (APR_MAJOR_VERSION >= 1) /* for apache >= 2.2 */
233	result = apr_ldap_url_parse(cmd->pool, url, &(urld), &(result_err));
234	if (result != LDAP_SUCCESS) {
235	return result_err->reason;
236	}
237	#else
238	result = apr_ldap_url_parse(url, &(urld));
239	if (result != LDAP_SUCCESS) {
240	switch (result) {
241	case LDAP_URL_ERR_NOTLDAP:
242	return "LDAP URL does not begin with ldap://";
243	case LDAP_URL_ERR_NODN:
244	return "LDAP URL does not have a DN";
245	case LDAP_URL_ERR_BADSCOPE:
246	return "LDAP URL has an invalid scope";
247	case LDAP_URL_ERR_MEM:
248	return "Out of memory parsing LDAP URL";
249	default:
250	return "Could not parse LDAP URL";
251	}
252	}
253	#endif
254	conf->url = apr_pstrdup(cmd->pool, url);
255
256	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
257	cmd->server, "[mod_vhost_ldap.c] url parse: Host: %s", urld->lud_host);
258	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
259	cmd->server, "[mod_vhost_ldap.c] url parse: Port: %d", urld->lud_port);
260	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
261	cmd->server, "[mod_vhost_ldap.c] url parse: DN: %s", urld->lud_dn);
262	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
263	cmd->server, "[mod_vhost_ldap.c] url parse: attrib: %s", urld->lud_attrs? urld->lud_attrs[0] : "(null)");
264	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
265	cmd->server, "[mod_vhost_ldap.c] url parse: scope: %s",
266	(urld->lud_scope == LDAP_SCOPE_SUBTREE? "subtree" :
267	urld->lud_scope == LDAP_SCOPE_BASE? "base" :
268	urld->lud_scope == LDAP_SCOPE_ONELEVEL? "onelevel" : "unknown"));
269	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0,
270	cmd->server, "[mod_vhost_ldap.c] url parse: filter: %s", urld->lud_filter);
271
272	/* Set all the values, or at least some sane defaults */
273	if (conf->host) {
274	char *p = apr_palloc(cmd->pool, strlen(conf->host) + strlen(urld->lud_host) + 2);
275	strcpy(p, urld->lud_host);
276	strcat(p, " ");
277	strcat(p, conf->host);
278	conf->host = p;
279	}
280	else {
281	conf->host = urld->lud_host? apr_pstrdup(cmd->pool, urld->lud_host) : "localhost";
282	}
283	conf->basedn = urld->lud_dn? apr_pstrdup(cmd->pool, urld->lud_dn) : "";
284
285	conf->scope = urld->lud_scope == LDAP_SCOPE_ONELEVEL ?
286	LDAP_SCOPE_ONELEVEL : LDAP_SCOPE_SUBTREE;
287
288	if (urld->lud_filter) {
289	if (urld->lud_filter[0] == '(') {
290	/*
291	* Get rid of the surrounding parens; later on when generating the
292	* filter, they'll be put back.
293	*/
294	conf->filter = apr_pstrdup(cmd->pool, urld->lud_filter+1);
295	conf->filter[strlen(conf->filter)-1] = '\0';
296	}
297	else {
298	conf->filter = apr_pstrdup(cmd->pool, urld->lud_filter);
299	}
300	}
301	else {
302	conf->filter = "objectClass=apacheConfig";
303	}
304
305	/* "ldaps" indicates secure ldap connections desired
306	*/
307	if (strncasecmp(url, "ldaps", 5) == 0)
308	{
309	conf->secure = 1;
310	conf->port = urld->lud_port? urld->lud_port : LDAPS_PORT;
311	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0, cmd->server,
312	"LDAP: vhost_ldap using SSL connections");
313	}
314	else
315	{
316	conf->secure = 0;
317	conf->port = urld->lud_port? urld->lud_port : LDAP_PORT;
318	ap_log_error(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0, cmd->server,
319	"LDAP: vhost_ldap not using SSL connections");
320	}
321
322	conf->have_ldap_url = 1;
323	#if (APR_MAJOR_VERSION < 1) /* free only required for older apr */
324	apr_ldap_free_urldesc(urld);
325	#endif
326	return NULL;
327	}
328
329	static const char mod_vhost_ldap_set_enabled(cmd_parms cmd, void *dummy, int enabled)
330	{
331	mod_vhost_ldap_config_t *conf =
332	(mod_vhost_ldap_config_t *)ap_get_module_config(cmd->server->module_config,
333	&vhost_ldap_module);
334
335	conf->enabled = (enabled) ? MVL_ENABLED : MVL_DISABLED;
336
337	return NULL;
338	}
339
340	static const char mod_vhost_ldap_set_binddn(cmd_parms cmd, void dummy, const char binddn)
341	{
342	mod_vhost_ldap_config_t *conf =
343	(mod_vhost_ldap_config_t *)ap_get_module_config(cmd->server->module_config,
344	&vhost_ldap_module);
345
346	conf->binddn = apr_pstrdup(cmd->pool, binddn);
347	return NULL;
348	}
349
350	static const char mod_vhost_ldap_set_bindpw(cmd_parms cmd, void dummy, const char bindpw)
351	{
352	mod_vhost_ldap_config_t *conf =
353	(mod_vhost_ldap_config_t *)ap_get_module_config(cmd->server->module_config,
354	&vhost_ldap_module);
355
356	conf->bindpw = apr_pstrdup(cmd->pool, bindpw);
357	return NULL;
358	}
359
360	static const char mod_vhost_ldap_set_deref(cmd_parms cmd, void dummy, const char deref)
361	{
362	mod_vhost_ldap_config_t *conf =
363	(mod_vhost_ldap_config_t *)ap_get_module_config (cmd->server->module_config,
364	&vhost_ldap_module);
365
366	if (strcmp(deref, "never") == 0 \|\| strcasecmp(deref, "off") == 0) {
367	conf->deref = never;
368	conf->have_deref = 1;
369	}
370	else if (strcmp(deref, "searching") == 0) {
371	conf->deref = searching;
372	conf->have_deref = 1;
373	}
374	else if (strcmp(deref, "finding") == 0) {
375	conf->deref = finding;
376	conf->have_deref = 1;
377	}
378	else if (strcmp(deref, "always") == 0 \|\| strcasecmp(deref, "on") == 0) {
379	conf->deref = always;
380	conf->have_deref = 1;
381	}
382	else {
383	return "Unrecognized value for VhostLDAPAliasDereference directive";
384	}
385	return NULL;
386	}
387
388	static const char mod_vhost_ldap_set_fallback(cmd_parms cmd, void dummy, const char fallback)
389	{
390	mod_vhost_ldap_config_t *conf =
391	(mod_vhost_ldap_config_t *)ap_get_module_config(cmd->server->module_config,
392	&vhost_ldap_module);
393
394	conf->fallback = apr_pstrdup(cmd->pool, fallback);
395	return NULL;
396	}
397
398	command_rec mod_vhost_ldap_cmds[] = {
399	AP_INIT_TAKE1("VhostLDAPURL", mod_vhost_ldap_parse_url, NULL, RSRC_CONF,
400	"URL to define LDAP connection. This should be an RFC 2255 compliant\n"
401	"URL of the form ldap://host[:port]/basedn[?attrib[?scope[?filter]]].\n"
402	"<ul>\n"
403	"<li>Host is the name of the LDAP server. Use a space separated list of hosts \n"
404	"to specify redundant servers.\n"
405	"<li>Port is optional, and specifies the port to connect to.\n"
406	"<li>basedn specifies the base DN to start searches from\n"
407	"</ul>\n"),
408
409	AP_INIT_TAKE1 ("VhostLDAPBindDN", mod_vhost_ldap_set_binddn, NULL, RSRC_CONF,
410	"DN to use to bind to LDAP server. If not provided, will do an anonymous bind."),
411
412	AP_INIT_TAKE1("VhostLDAPBindPassword", mod_vhost_ldap_set_bindpw, NULL, RSRC_CONF,
413	"Password to use to bind to LDAP server. If not provided, will do an anonymous bind."),
414
415	AP_INIT_FLAG("VhostLDAPEnabled", mod_vhost_ldap_set_enabled, NULL, RSRC_CONF,
416	"Set to off to disable vhost_ldap, even if it's been enabled in a higher tree"),
417
418	AP_INIT_TAKE1("VhostLDAPDereferenceAliases", mod_vhost_ldap_set_deref, NULL, RSRC_CONF,
419	"Determines how aliases are handled during a search. Can be one of the"
420	"values \"never\", \"searching\", \"finding\", or \"always\". "
421	"Defaults to always."),
422
423	AP_INIT_TAKE1("VhostLDAPFallback", mod_vhost_ldap_set_fallback, NULL, RSRC_CONF,
424	"Set default virtual host which will be used when requested hostname"
425	"is not found in LDAP database. This option can be used to display"
426	"\"virtual host not found\" type of page."),
427
428	{NULL}
429	};
430
431	#define FILTER_LENGTH MAX_STRING_LEN
432	static int mod_vhost_ldap_translate_name(request_rec *r)
433	{
434	mod_vhost_ldap_request_t *reqc;
435	apr_table_t *e;
436	int failures = 0;
437	const char **vals = NULL;
438	char filtbuf[FILTER_LENGTH];
439	mod_vhost_ldap_config_t *conf =
440	(mod_vhost_ldap_config_t *)ap_get_module_config(r->server->module_config, &vhost_ldap_module);
441	core_server_config * core =
442	(core_server_config *) ap_get_module_config(r->server->module_config, &core_module);
443	util_ldap_connection_t *ldc = NULL;
444	int result = 0;
445	const char *dn = NULL;
446	char *cgi;
447	const char *hostname = NULL;
448	int is_fallback = 0;
449
450	reqc =
451	(mod_vhost_ldap_request_t *)apr_pcalloc(r->pool, sizeof(mod_vhost_ldap_request_t));
452	memset(reqc, 0, sizeof(mod_vhost_ldap_request_t));
453
454	ap_set_module_config(r->request_config, &vhost_ldap_module, reqc);
455
456	// mod_vhost_ldap is disabled or we don't have LDAP Url
457	if ((conf->enabled != MVL_ENABLED)\|\|(!conf->have_ldap_url)) {
458	return DECLINED;
459	}
460
461	start_over:
462
463	if (conf->host) {
464	ldc = util_ldap_connection_find(r, conf->host, conf->port,
465	conf->binddn, conf->bindpw, conf->deref,
466	conf->secure);
467	}
468	else {
469	ap_log_rerror(APLOG_MARK, APLOG_WARNING\|APLOG_NOERRNO, 0, r,
470	"[mod_vhost_ldap.c] translate: no conf->host - weird...?");
471	return DECLINED;
472	}
473
474	hostname = r->hostname;
475	if (hostname == NULL \|\| hostname[0] == '\0')
476	goto null;
477
478	fallback:
479
480	ap_log_rerror(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0, r,
481	"[mod_vhost_ldap.c]: translating %s", r->uri);
482
483	struct berval hostnamebv, shostnamebv;
484	ber_str2bv(hostname, 0, 0, &hostnamebv);
485	if (ldap_bv2escaped_filter_value(&hostnamebv, &shostnamebv) != 0)
486	goto null;
487	apr_snprintf(filtbuf, FILTER_LENGTH, "(&(%s)(\|(apacheServerName=%s)(apacheServerAlias=%s)))", conf->filter, shostnamebv.bv_val, shostnamebv.bv_val);
488	ber_memfree(shostnamebv.bv_val);
489
490	result = util_ldap_cache_getuserdn(r, ldc, conf->url, conf->basedn, conf->scope,
491	attributes, filtbuf, &dn, &vals);
492
493	util_ldap_connection_close(ldc);
494
495	/* sanity check - if server is down, retry it up to 5 times */
496	if (result == LDAP_SERVER_DOWN) {
497	if (failures++ <= 5) {
498	goto start_over;
499	}
500	}
501
502	if ((result == LDAP_NO_SUCH_OBJECT)) {
503	if (strcmp(hostname, "*") != 0) {
504	if (strncmp(hostname, "*.", 2) == 0)
505	hostname += 2;
506	hostname += strcspn(hostname, ".");
507	hostname = apr_pstrcat(r->pool, "*", hostname, NULL);
508	ap_log_rerror(APLOG_MARK, APLOG_NOTICE\|APLOG_NOERRNO, 0, r,
509	"[mod_vhost_ldap.c] translate: "
510	"virtual host not found, trying wildcard %s",
511	hostname);
512	goto fallback;
513	}
514
515	null:
516	if (conf->fallback && (is_fallback++ <= 0)) {
517	ap_log_rerror(APLOG_MARK, APLOG_NOTICE\|APLOG_NOERRNO, 0, r,
518	"[mod_vhost_ldap.c] translate: "
519	"virtual host %s not found, trying fallback %s",
520	hostname, conf->fallback);
521	hostname = conf->fallback;
522	goto fallback;
523	}
524
525	ap_log_rerror(APLOG_MARK, APLOG_WARNING\|APLOG_NOERRNO, 0, r,
526	"[mod_vhost_ldap.c] translate: "
527	"virtual host %s not found",
528	hostname);
529
530	return DECLINED;
531	}
532
533	/* handle bind failure */
534	if (result != LDAP_SUCCESS) {
535	ap_log_rerror(APLOG_MARK, APLOG_WARNING\|APLOG_NOERRNO, 0, r,
536	"[mod_vhost_ldap.c] translate: "
537	"translate failed; virtual host %s; URI %s [%s]",
538	hostname, r->uri, ldap_err2string(result));
539	return DECLINED;
540	}
541
542	/* mark the user and DN */
543	reqc->dn = apr_pstrdup(r->pool, dn);
544
545	/* Optimize */
546	if (vals) {
547	int i = 0;
548	while (attributes[i]) {
549
550	if (strcasecmp (attributes[i], "apacheServerName") == 0) {
551	reqc->name = apr_pstrdup (r->pool, vals[i]);
552	}
553	else if (strcasecmp (attributes[i], "apacheServerAdmin") == 0) {
554	reqc->admin = apr_pstrdup (r->pool, vals[i]);
555	}
556	else if (strcasecmp (attributes[i], "apacheDocumentRoot") == 0) {
557	reqc->docroot = apr_pstrdup (r->pool, vals[i]);
558	}
559	else if (strcasecmp (attributes[i], "apacheScriptAlias") == 0) {
560	reqc->cgiroot = apr_pstrdup (r->pool, vals[i]);
561	}
562	else if (strcasecmp (attributes[i], "apacheSuexecUid") == 0) {
563	reqc->uid = apr_pstrdup(r->pool, vals[i]);
564	}
565	else if (strcasecmp (attributes[i], "apacheSuexecGid") == 0) {
566	reqc->gid = apr_pstrdup(r->pool, vals[i]);
567	}
568	i++;
569	}
570	}
571
572	ap_log_rerror(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0, r,
573	"[mod_vhost_ldap.c]: loaded from ldap: "
574	"apacheServerName: %s, "
575	"apacheServerAdmin: %s, "
576	"apacheDocumentRoot: %s, "
577	"apacheScriptAlias: %s, "
578	"apacheSuexecUid: %s, "
579	"apacheSuexecGid: %s",
580	reqc->name, reqc->admin, reqc->docroot, reqc->cgiroot, reqc->uid, reqc->gid);
581
582	if ((reqc->name == NULL)\|\|(reqc->docroot == NULL)) {
583	ap_log_rerror(APLOG_MARK, APLOG_ERR\|APLOG_NOERRNO, 0, r,
584	"[mod_vhost_ldap.c] translate: "
585	"translate failed; ServerName or DocumentRoot not defined");
586	return DECLINED;
587	}
588
589	cgi = NULL;
590
591	#if 0
592	if (reqc->cgiroot) {
593	cgi = strstr(r->uri, "cgi-bin/");
594	if (cgi && (cgi != r->uri + strspn(r->uri, "/"))) {
595	cgi = NULL;
596	}
597	}
598	if (cgi) {
599	r->filename = apr_pstrcat (r->pool, reqc->cgiroot, cgi + strlen("cgi-bin"), NULL);
600	r->handler = "cgi-script";
601	apr_table_setn(r->notes, "alias-forced-type", r->handler);
602	#endif
603	/* This is a quick, dirty hack. I should be shot for taking 6.170
604	* this term and being willing to write a quick, dirty hack. */
605
606	if (strncmp(r->uri, "/~", 2) == 0) {
607	char *username;
608	uid_t uid = (uid_t)atoll(reqc->uid);
609	if (apr_uid_name_get(&username, uid, r->pool) != APR_SUCCESS) {
610	ap_log_rerror(APLOG_MARK, APLOG_ERR\|APLOG_NOERRNO, 0, r,
611	"could not get username for uid %d", uid);
612	return DECLINED;
613	}
614	if (strncmp(r->uri + 2, username, strlen(username)) == 0 &&
615	(r->uri[2 + strlen(username)] == '/' \|\|
616	r->uri[2 + strlen(username)] == '\0')) {
617	char *homedir;
618	if (apr_uid_homepath_get(&homedir, username, r->pool) != APR_SUCCESS) {
619	ap_log_rerror(APLOG_MARK, APLOG_ERR\|APLOG_NOERRNO, 0, r,
620	"could not get home directory for user %s", username);
621	return DECLINED;
622	}
623	r->filename = apr_pstrcat(r->pool, homedir, "/", USERDIR, r->uri + 2 + strlen(username), NULL);
624	}
625	} else if (r->uri[0] == '/') {
626	r->filename = apr_pstrcat (r->pool, reqc->docroot, r->uri, NULL);
627	} else {
628	return DECLINED;
629	}
630
631	if ((r->server = apr_pmemdup(r->pool, r->server,
632	sizeof(*r->server))) == NULL)
633	return HTTP_INTERNAL_SERVER_ERROR;
634
635	r->server->server_hostname = reqc->name;
636
637	if (reqc->admin) {
638	r->server->server_admin = reqc->admin;
639	}
640
641	// set environment variables
642	e = r->subprocess_env;
643	apr_table_addn (e, "SERVER_ROOT", reqc->docroot);
644
645	if ((r->server->module_config =
646	apr_pmemdup(r->pool, r->server->module_config,
647	sizeof(void )
648	(total_modules + DYNAMIC_MODULE_LIMIT))) == NULL)
649	return HTTP_INTERNAL_SERVER_ERROR;
650
651	if ((core = apr_pmemdup(r->pool, core, sizeof(*core))) == NULL)
652	return HTTP_INTERNAL_SERVER_ERROR;
653	ap_set_module_config(r->server->module_config, &core_module, core);
654
655	core->ap_document_root = reqc->docroot;
656
657	ap_log_rerror(APLOG_MARK, APLOG_DEBUG\|APLOG_NOERRNO, 0, r,
658	"[mod_vhost_ldap.c]: translated to %s", r->filename);
659
660	return OK;
661	}
662
663	#ifdef HAVE_UNIX_SUEXEC
664	static ap_unix_identity_t mod_vhost_ldap_get_suexec_id_doer(const request_rec r)
665	{
666	ap_unix_identity_t *ugid = NULL;
667	mod_vhost_ldap_config_t *conf =
668	(mod_vhost_ldap_config_t *)ap_get_module_config(r->server->module_config,
669	&vhost_ldap_module);
670	mod_vhost_ldap_request_t *req =
671	(mod_vhost_ldap_request_t *)ap_get_module_config(r->request_config,
672	&vhost_ldap_module);
673
674	uid_t uid = -1;
675	gid_t gid = -1;
676
677	// mod_vhost_ldap is disabled or we don't have LDAP Url
678	if ((conf->enabled != MVL_ENABLED)\|\|(!conf->have_ldap_url)) {
679	return NULL;
680	}
681
682	if ((req == NULL)\|\|(req->uid == NULL)\|\|(req->gid == NULL)) {
683	return NULL;
684	}
685
686	if ((ugid = apr_palloc(r->pool, sizeof(ap_unix_identity_t))) == NULL) {
687	return NULL;
688	}
689
690	uid = (uid_t)atoll(req->uid);
691	gid = (gid_t)atoll(req->gid);
692
693	if ((uid < MIN_UID)\|\|(gid < MIN_GID)) {
694	return NULL;
695	}
696
697	ugid->uid = uid;
698	ugid->gid = gid;
699	ugid->userdir = 0;
700
701	return ugid;
702	}
703	#endif
704
705	static void
706	mod_vhost_ldap_register_hooks (apr_pool_t * p)
707	{
708	ap_hook_post_config(mod_vhost_ldap_post_config, NULL, NULL, APR_HOOK_MIDDLE);
709	ap_hook_translate_name(mod_vhost_ldap_translate_name, NULL, NULL, APR_HOOK_MIDDLE);
710	#ifdef HAVE_UNIX_SUEXEC
711	ap_hook_get_suexec_identity(mod_vhost_ldap_get_suexec_id_doer, NULL, NULL, APR_HOOK_MIDDLE);
712	#endif
713	#if (APR_MAJOR_VERSION >= 1)
714	ap_hook_optional_fn_retrieve(ImportULDAPOptFn,NULL,NULL,APR_HOOK_MIDDLE);
715	#endif
716	}
717
718	module AP_MODULE_DECLARE_DATA vhost_ldap_module = {
719	STANDARD20_MODULE_STUFF,
720	NULL,
721	NULL,
722	mod_vhost_ldap_create_server_config,
723	mod_vhost_ldap_merge_server_config,
724	mod_vhost_ldap_cmds,
725	mod_vhost_ldap_register_hooks,
726	};

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