summaryrefslogtreecommitdiff
path: root/sapi/apache2filter/apache_config.c
blob: 2b0ce50c7e071d626b52a16f11523acf5703beb2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
   +----------------------------------------------------------------------+
   | PHP version 4.0                                                      |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2001 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.02 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available at through the world-wide-web at                           |
   | http://www.php.net/license/2_02.txt.                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Sascha Schumann <sascha@schumann.cx>                        |
   +----------------------------------------------------------------------+
 */

#include "php.h"
#include "php_ini.h"

#include "apr_strings.h"
#include "ap_config.h"
#include "util_filter.h"
#include "httpd.h"
#include "http_config.h"
#include "http_request.h"
#include "http_core.h"
#include "http_protocol.h"
#include "http_log.h"
#include "http_main.h"
#include "util_script.h"
#include "http_core.h"                         

#ifdef PHP_AP_DEBUG
#define phpapdebug(a) fprintf a
#else
#define phpapdebug(a)
#endif

typedef struct {
	HashTable config;
} php_conf_rec;

typedef struct {
	char *value;
	size_t value_len;
	char status;
} php_dir_entry;

static const char *real_value_hnd(cmd_parms *cmd, void *dummy, const char *name, const char *value, int status)
{
	php_conf_rec *d = dummy;
	php_dir_entry e;
	php_dir_entry *pe;
	size_t str_len;

	phpapdebug((stderr, "Getting %s=%s for %p (%d)\n", name, value, dummy, zend_hash_num_elements(&d->config)));
	e.value = apr_pstrdup(cmd->pool, value);
	e.value_len = strlen(value);
	e.status = status;
	
	str_len = strlen(name);
	
	if (zend_hash_find(&d->config, (char *) name, str_len + 1, (void **) &pe) == SUCCESS) {
		if (pe->status > status)
			return NULL;
	}
	
	zend_hash_update(&d->config, (char *) name, strlen(name) + 1, &e, sizeof(e),
			NULL);
	return NULL;
}

static const char *php_apache_value_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
{
	return real_value_hnd(cmd, dummy, name, value, PHP_INI_USER);
}

static const char *php_apache_admin_value_handler(cmd_parms *cmd, void *dummy, const char *name, const char *value)
{
	return real_value_hnd(cmd, dummy, name, value, PHP_INI_SYSTEM);
}

void *merge_php_config(apr_pool_t *p, void *base_conf, void *new_conf)
{
	php_conf_rec *d = base_conf, *e = new_conf;
	php_dir_entry *pe;
	php_dir_entry *data;
	char *str;
	ulong str_len;
	ulong num_index;

	phpapdebug((stderr, "Merge dir (%p) (%p)\n", base_conf, new_conf));
	for (zend_hash_internal_pointer_reset(&d->config);
			zend_hash_get_current_key_ex(&d->config, &str, &str_len, &num_index, 0, NULL) == HASH_KEY_IS_STRING;
			zend_hash_move_forward(&d->config)) {
		pe = NULL;
		zend_hash_get_current_data(&d->config, (void **) &data);
		if (zend_hash_find(&e->config, str, str_len, (void **) &pe) == SUCCESS) {
			if (pe->status >= data->status) continue;
		}
		zend_hash_update(&e->config, str, str_len, data, sizeof(*data), NULL);
		phpapdebug((stderr, "ADDING/OVERWRITING %s (%d vs. %d)\n", str, data->status, pe?pe->status:-1));
	}
	return new_conf;
}

void apply_config(void *dummy)
{
	php_conf_rec *d = dummy;
	char *str;
	ulong str_len;
	php_dir_entry *data;
	
	for (zend_hash_internal_pointer_reset(&d->config);
			zend_hash_get_current_key_ex(&d->config, &str, &str_len, NULL, 0, NULL) == HASH_KEY_IS_STRING;
			zend_hash_move_forward(&d->config)) {
		zend_hash_get_current_data(&d->config, (void **) &data);
		phpapdebug((stderr, "APPLYING (%s)(%s)\n", str, data->value));
		if (zend_alter_ini_entry(str, str_len, data->value, data->value_len + 1, 
				data->status, PHP_INI_STAGE_RUNTIME) == FAILURE)
			phpapdebug((stderr, "..FAILED\n"));
	}
}

const command_rec php_dir_cmds[] =
{
	AP_INIT_TAKE2("php_value", php_apache_value_handler, NULL, OR_OPTIONS,
                  "PHP Value Modifier"),
	AP_INIT_TAKE2("php_admin_value", php_apache_admin_value_handler, NULL, OR_NONE,
                  "PHP Value Modifier"),
   {NULL}
};

static apr_status_t destroy_php_config(void *data)
{
	php_conf_rec *d = data;

	phpapdebug((stderr, "Destroying config %p\n", data));	
	zend_hash_destroy(&d->config);

	return APR_SUCCESS;
}

void *create_php_config(apr_pool_t *p, char *dummy)
{
    php_conf_rec *newx =
    (php_conf_rec *) apr_pcalloc(p, sizeof(*newx));

	phpapdebug((stderr, "Creating new config (%p) for %s\n", newx, dummy));
	zend_hash_init(&newx->config, 0, NULL, NULL, 1);
	apr_pool_cleanup_register(p, newx, destroy_php_config, NULL);
	return (void *) newx;
}