add logio support

1 files changed, 134 insertions, 0 deletions

diff --git a/mod_log_sql_logio.c b/mod_log_sql_logio.c
new file mode 100644
index 0000000..5de477f
--- /dev/null
+++ b/mod_log_sql_logio.c
@@ -0,0 +1,134 @@
+/* $Id: mod_log_sql_ssl.c 140 2004-05-14 03:50:47Z urkle@drip.ws $ */
+
+#if defined(WITH_APACHE20)
+#       include "apache20.h"
+#else
+#       error Unsupported Apache version
+#endif
+
+#ifdef HAVE_CONFIG_H
+/* Undefine these to prevent conflicts between Apache ap_config_auto.h and
+ * my config.h. Only really needed for Apache < 2.0.48, but it can't hurt.
+ */
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+
+#include "config.h"
+#endif
+
+#include "mod_log_sql.h"
+
+module AP_MODULE_DECLARE_DATA log_sql_logio_module;
+
+// From apachge 2.2's mod_logio.c to provide logging ACTUAL incoming and outgoing bytes
+static const char logio_filter_name[] = "LOG_SQL_INPUT_OUTPUT";
+
+typedef struct {
+    apr_off_t bytes_in;
+    apr_off_t bytes_out;
+} logio_config_t;
+
+static void ap_logio_add_bytes_out(conn_rec *c, apr_off_t bytes){
+    logio_config_t *cf = ap_get_module_config(c->conn_config, &log_sql_logio_module);
+
+    cf->bytes_out += bytes;
+}
+
+static const char *log_bytes_in(request_rec *r, char *a)
+{
+    logio_config_t *cf = ap_get_module_config(r->connection->conn_config,
+                                              &log_sql_logio_module);
+
+    return apr_off_t_toa(r->pool, cf->bytes_in);
+}
+
+static const char *log_bytes_out(request_rec *r, char *a)
+{
+    logio_config_t *cf = ap_get_module_config(r->connection->conn_config,
+                                              &log_sql_logio_module);
+
+    return apr_off_t_toa(r->pool, cf->bytes_out);
+}
+
+static int logio_transaction(request_rec *r)
+{
+    logio_config_t *cf = ap_get_module_config(r->connection->conn_config,
+                                              &log_sql_logio_module);
+
+    cf->bytes_in = cf->bytes_out = 0;
+
+    return OK;
+}
+
+static apr_status_t logio_in_filter(ap_filter_t *f,
+                                    apr_bucket_brigade *bb,
+                                    ap_input_mode_t mode,
+                                    apr_read_type_e block,
+                                    apr_off_t readbytes) {
+    apr_off_t length;
+    apr_status_t status;
+    logio_config_t *cf = ap_get_module_config(f->c->conn_config, &log_sql_logio_module);
+
+    status = ap_get_brigade(f->next, bb, mode, block, readbytes);
+
+    apr_brigade_length (bb, 0, &length);
+
+    if (length > 0)
+        cf->bytes_in += length;
+
+    return status;
+}
+
+static apr_status_t logio_out_filter(ap_filter_t *f,
+                                     apr_bucket_brigade *bb) {
+    apr_bucket *b = APR_BRIGADE_LAST(bb);
+
+    /* End of data, make sure we flush */
+    if (APR_BUCKET_IS_EOS(b)) {
+        APR_BUCKET_INSERT_BEFORE(b,
+                                 apr_bucket_flush_create(f->c->bucket_alloc));
+    }
+
+    return ap_pass_brigade(f->next, bb);
+}
+
+static int logio_pre_conn(conn_rec *c, void *csd) {
+    logio_config_t *cf = apr_pcalloc(c->pool, sizeof(*cf));
+
+    ap_set_module_config(c->conn_config, &log_sql_logio_module, cf);
+
+    ap_add_input_filter(logio_filter_name, NULL, NULL, c);
+    ap_add_output_filter(logio_filter_name, NULL, NULL, c);
+
+    return OK;
+}
+
+static int post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s);
+static void register_hooks(apr_pool_t *p) {
+    static const char *pre[] = { "mod_log_sql.c", NULL };
+
+    ap_hook_pre_connection(logio_pre_conn, NULL, NULL, APR_HOOK_MIDDLE);
+    ap_hook_log_transaction(logio_transaction, pre, NULL, APR_HOOK_MIDDLE);
+    ap_hook_post_config(post_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
+
+    ap_register_input_filter(logio_filter_name, logio_in_filter, NULL,
+                             AP_FTYPE_NETWORK - 1);
+    ap_register_output_filter(logio_filter_name, logio_out_filter, NULL,
+                              AP_FTYPE_NETWORK - 1);
+
+    APR_REGISTER_OPTIONAL_FN(ap_logio_add_bytes_out);
+}
+
+module AP_MODULE_DECLARE_DATA log_sql_logio_module = {
+    STANDARD20_MODULE_STUFF,
+    NULL, NULL,  NULL, NULL,  NULL, register_hooks
+};
+static int post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
+{
+        log_sql_register_item(s,p,'i', log_bytes_in,   "bytes_in",    0, 0);
+        log_sql_register_item(s,p,'o', log_bytes_out,  "bytes_out",   0, 0);
+    return OK;
+}