1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2012 The PHP Group |
6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Author: Sascha Schumann <sascha@schumann.cx> |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: apache_config.c,v 1.1.1.2 2012/05/29 12:34:35 misho Exp $ */
20:
21: #define ZEND_INCLUDE_FULL_WINDOWS_HEADERS
22:
23: #include "php.h"
24: #include "php_ini.h"
25: #include "php_apache.h"
26:
27: #include "apr_strings.h"
28: #include "ap_config.h"
29: #include "util_filter.h"
30: #include "httpd.h"
31: #include "http_config.h"
32: #include "http_request.h"
33: #include "http_core.h"
34: #include "http_protocol.h"
35: #include "http_log.h"
36: #include "http_main.h"
37: #include "util_script.h"
38: #include "http_core.h"
39:
40: #ifdef PHP_AP_DEBUG
41: #define phpapdebug(a) fprintf a
42: #else
43: #define phpapdebug(a)
44: #endif
45:
46: typedef struct {
47: HashTable config;
48: } php_conf_rec;
49:
50: typedef struct {
51: char *value;
52: size_t value_len;
53: char status;
54: char htaccess;
55: } php_dir_entry;
56:
57: static const char *real_value_hnd(cmd_parms *cmd, void *dummy, const char *name, const char *value, int status)
58: {
59: php_conf_rec *d = dummy;
60: php_dir_entry e;
61:
62: phpapdebug((stderr, "Getting %s=%s for %p (%d)\n", name, value, dummy, zend_hash_num_elements(&d->config)));
63:
64: if (!strncasecmp(value, "none", sizeof("none"))) {
65: value = "";
66: }
67:
68: e.value = apr_pstrdup(cmd->pool, value);
69: e.value_len = strlen(value);
70: e.status = status;
71: e.htaccess = ((cmd->override & (RSRC_CONF|ACCESS_CONF)) == 0);
72:
73: zend_hash_update(&d->config, (char *) name, strlen(name) + 1, &e, sizeof(e), NULL);
74: return NULL;
75: }
76:
77: static const char *php_apache_value_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
78: {
79: return real_value_hnd(cmd, dummy, name, value, PHP_INI_PERDIR);
80: }
81:
82: static const char *php_apache_admin_value_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
83: {
84: return real_value_hnd(cmd, dummy, name, value, PHP_INI_SYSTEM);
85: }
86:
87: static const char *real_flag_hnd(cmd_parms *cmd, void *dummy, const char *arg1, const char *arg2, int status)
88: {
89: char bool_val[2];
90:
91: if (!strcasecmp(arg2, "On") || (arg2[0] == '1' && arg2[1] == '\0')) {
92: bool_val[0] = '1';
93: } else {
94: bool_val[0] = '0';
95: }
96: bool_val[1] = 0;
97:
98: return real_value_hnd(cmd, dummy, arg1, bool_val, status);
99: }
100:
101: static const char *php_apache_flag_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
102: {
103: return real_flag_hnd(cmd, dummy, name, value, PHP_INI_PERDIR);
104: }
105:
106: static const char *php_apache_admin_flag_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
107: {
108: return real_flag_hnd(cmd, dummy, name, value, PHP_INI_SYSTEM);
109: }
110:
111: static const char *php_apache_phpini_set(cmd_parms *cmd, void *mconfig, const char *arg)
112: {
113: if (apache2_php_ini_path_override) {
114: return "Only first PHPINIDir directive honored per configuration tree - subsequent ones ignored";
115: }
116: apache2_php_ini_path_override = ap_server_root_relative(cmd->pool, arg);
117: return NULL;
118: }
119:
120: static zend_bool should_overwrite_per_dir_entry(HashTable *target_ht, php_dir_entry *new_per_dir_entry, zend_hash_key *hash_key, void *pData)
121: {
122: php_dir_entry *orig_per_dir_entry;
123:
124: if (zend_hash_find(target_ht, hash_key->arKey, hash_key->nKeyLength, (void **) &orig_per_dir_entry)==FAILURE) {
125: return 1; /* does not exist in dest, copy from source */
126: }
127:
128: if (new_per_dir_entry->status >= orig_per_dir_entry->status) {
129: /* use new entry */
130: phpapdebug((stderr, "ADDING/OVERWRITING %s (%d vs. %d)\n", hash_key->arKey, new_per_dir_entry->status, orig_per_dir_entry->status));
131: return 1;
132: } else {
133: return 0;
134: }
135: }
136:
137:
138: void *merge_php_config(apr_pool_t *p, void *base_conf, void *new_conf)
139: {
140: php_conf_rec *d = base_conf, *e = new_conf, *n = NULL;
141: #if STAS_0
142: php_dir_entry *pe;
143: php_dir_entry *data;
144: char *str;
145: uint str_len;
146: ulong num_index;
147: #endif
148:
149: n = create_php_config(p, "merge_php_config");
150: /* copy old config */
151: zend_hash_copy(&n->config, &d->config, NULL, NULL, sizeof(php_dir_entry));
152: /* merge new config */
153: phpapdebug((stderr, "Merge dir (%p)+(%p)=(%p)\n", base_conf, new_conf, n));
154: zend_hash_merge_ex(&n->config, &e->config, NULL, sizeof(php_dir_entry), (merge_checker_func_t) should_overwrite_per_dir_entry, NULL);
155: #if STAS_0
156: for (zend_hash_internal_pointer_reset(&d->config);
157: zend_hash_get_current_key_ex(&d->config, &str, &str_len,
158: &num_index, 0, NULL) == HASH_KEY_IS_STRING;
159: zend_hash_move_forward(&d->config)) {
160: pe = NULL;
161: zend_hash_get_current_data(&d->config, (void **) &data);
162: if (zend_hash_find(&n->config, str, str_len, (void **) &pe) == SUCCESS) {
163: if (pe->status >= data->status) continue;
164: }
165: phpapdebug((stderr, "ADDING/OVERWRITING %s (%d vs. %d)\n", str, data->status, pe?pe->status:-1));
166: zend_hash_update(&n->config, str, str_len, data, sizeof(*data), NULL);
167: }
168: #endif
169: return n;
170: }
171:
172: char *get_php_config(void *conf, char *name, size_t name_len)
173: {
174: php_conf_rec *d = conf;
175: php_dir_entry *pe;
176:
177: if (zend_hash_find(&d->config, name, name_len, (void **) &pe) == SUCCESS) {
178: return pe->value;
179: }
180:
181: return "";
182: }
183:
184: void apply_config(void *dummy)
185: {
186: php_conf_rec *d = dummy;
187: char *str;
188: uint str_len;
189: php_dir_entry *data;
190:
191: for (zend_hash_internal_pointer_reset(&d->config);
192: zend_hash_get_current_key_ex(&d->config, &str, &str_len, NULL, 0,
193: NULL) == HASH_KEY_IS_STRING;
194: zend_hash_move_forward(&d->config)) {
195: if (zend_hash_get_current_data(&d->config, (void **) &data) == SUCCESS) {
196: phpapdebug((stderr, "APPLYING (%s)(%s)\n", str, data->value));
197: if (zend_alter_ini_entry(str, str_len, data->value, data->value_len, data->status, data->htaccess?PHP_INI_STAGE_HTACCESS:PHP_INI_STAGE_ACTIVATE) == FAILURE) {
198: phpapdebug((stderr, "..FAILED\n"));
199: }
200: }
201: }
202: }
203:
204: const command_rec php_dir_cmds[] =
205: {
206: AP_INIT_TAKE2("php_value", php_apache_value_handler, NULL, OR_OPTIONS, "PHP Value Modifier"),
207: AP_INIT_TAKE2("php_flag", php_apache_flag_handler, NULL, OR_OPTIONS, "PHP Flag Modifier"),
208: AP_INIT_TAKE2("php_admin_value", php_apache_admin_value_handler, NULL, ACCESS_CONF|RSRC_CONF, "PHP Value Modifier (Admin)"),
209: AP_INIT_TAKE2("php_admin_flag", php_apache_admin_flag_handler, NULL, ACCESS_CONF|RSRC_CONF, "PHP Flag Modifier (Admin)"),
210: AP_INIT_TAKE1("PHPINIDir", php_apache_phpini_set, NULL, RSRC_CONF, "Directory containing the php.ini file"),
211: {NULL}
212: };
213:
214: static apr_status_t destroy_php_config(void *data)
215: {
216: php_conf_rec *d = data;
217:
218: phpapdebug((stderr, "Destroying config %p\n", data));
219: zend_hash_destroy(&d->config);
220:
221: return APR_SUCCESS;
222: }
223:
224: void *create_php_config(apr_pool_t *p, char *dummy)
225: {
226: php_conf_rec *newx = (php_conf_rec *) apr_pcalloc(p, sizeof(*newx));
227:
228: phpapdebug((stderr, "Creating new config (%p) for %s\n", newx, dummy));
229: zend_hash_init(&newx->config, 0, NULL, NULL, 1);
230: apr_pool_cleanup_register(p, newx, destroy_php_config, apr_pool_cleanup_null);
231: return (void *) newx;
232: }
233:
234: /*
235: * Local variables:
236: * tab-width: 4
237: * c-basic-offset: 4
238: * End:
239: * vim600: sw=4 ts=4 fdm=marker
240: * vim<600: sw=4 ts=4
241: */
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