Moved api examples to "ext" dir and hooked them into autotools for building with "--enable-extentions".

Upgraded to autoconf 2.65.
2025-09-29 11:16:33 +03:00 · 2010-05-05 23:00:48 +00:00
parent cea87f4085
commit 8553cab4a7
17 changed files with 244 additions and 156 deletions
--- a/ext/mod_var_remote_addr_port.c
+++ b/ext/mod_var_remote_addr_port.c
@@ -0,0 +1,102 @@
+
+#include "httpd.h"
+#include "http_core.h"
+#include "http_config.h"
+#include "http_log.h"
+#include "http_protocol.h"
+#include "ap_config.h"
+#include "apr_optional.h"
+
+#include "modsecurity.h"
+
+/* -- Generic generators/validators from re_variables.c -- */
+
+/**
+ * Generates a variable from a string and a length.
+ */
+static int var_simple_generate_ex(msre_var *var, apr_table_t *vartab, apr_pool_t *mptmp,
+    const char *value, int value_len)
+{
+    msre_var *rvar = NULL;
+
+    if (value == NULL) return 0;
+
+    rvar = apr_pmemdup(mptmp, var, sizeof(msre_var));
+    rvar->value = value;
+    rvar->value_len = value_len;
+    apr_table_addn(vartab, rvar->name, (void *)rvar);
+
+    return 1;
+}
+
+/**
+ * Generates a variable from a NULL-terminated string.
+ */
+static int var_simple_generate(msre_var *var, apr_table_t *vartab, apr_pool_t *mptmp,
+    const char *value)
+{
+    if (value == NULL) return 0;
+    return var_simple_generate_ex(var, vartab, mptmp, value, strlen(value));
+}
+
+
+/* -- Module specific code -- */
+
+/**
+ * Create a silly variable with value = a.b.c.d:port
+ */
+static int var_remote_addr_port_generate(modsec_rec *msr, msre_var *var, msre_rule *rule,
+    apr_table_t *vartab, apr_pool_t *mptmp)
+{
+    const char *value = apr_psprintf(mptmp, "%s:%d", msr->remote_addr, msr->remote_port);
+
+    return var_simple_generate(var, vartab, mptmp, value);
+}
+
+static int hook_pre_config(apr_pool_t *mp, apr_pool_t *mp_log, apr_pool_t *mp_temp) {
+    void (*register_fn)(const char *name, unsigned int type,
+                        unsigned int argc_min, unsigned int argc_max,
+                        void *fn_validate, void *fn_generate,
+                        unsigned int is_cacheable, unsigned int availability);
+
+    /* Look for the registration function
+     * exported by ModSecurity.
+     */
+    register_fn = APR_RETRIEVE_OPTIONAL_FN(modsec_register_variable);
+    if (register_fn) {
+        /* Use it to register our new
+         * variable under the
+         * name "REMOTE_ADDR_PORT".
+         */
+        register_fn(
+            "REMOTE_ADDR_PORT",
+            VAR_SIMPLE,
+            0, 0,
+            NULL,
+            var_remote_addr_port_generate,
+            VAR_DONT_CACHE,
+            PHASE_REQUEST_HEADERS
+        );
+    }  else {
+        ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_NOERRNO, 0, NULL,
+            "mod_var_remote_addr_port: Unable to find modsec_register_variable.");
+    }
+
+    return OK;
+}
+
+static void register_hooks(apr_pool_t *p) {
+    ap_hook_pre_config(hook_pre_config, NULL, NULL, APR_HOOK_LAST);
+}
+
+/* Dispatch list for API hooks */
+module AP_MODULE_DECLARE_DATA var_remote_addr_port_module = {
+    STANDARD20_MODULE_STUFF, 
+    NULL,                  /* create per-dir    config structures */
+    NULL,                  /* merge  per-dir    config structures */
+    NULL,                  /* create per-server config structures */
+    NULL,                  /* merge  per-server config structures */
+    NULL,                  /* table of config file commands       */
+    register_hooks         /* register hooks                      */
+};
+