]> granicus.if.org Git - apache/blobdiff - modules/http/http_core.c
Remove MPM-private stuff from conn_state_t
[apache] / modules / http / http_core.c
index e6d75aecf00158902f54a54ff1c694aa21f709b1..8421f42b973419eff82b164791dfc3002fb742a8 100644 (file)
@@ -1,9 +1,9 @@
-/* Copyright 1999-2005 The Apache Software Foundation or its licensors, as
- * applicable.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
 #define APR_WANT_STRFUNC
 #include "apr_want.h"
 
-#define CORE_PRIVATE
 #include "httpd.h"
 #include "http_config.h"
 #include "http_connection.h"
 #include "http_core.h"
-#include "http_protocol.h"     /* For index_of_response().  Grump. */
+#include "http_protocol.h"   /* For index_of_response().  Grump. */
 #include "http_request.h"
 
 #include "util_filter.h"
 AP_DECLARE_DATA ap_filter_rec_t *ap_http_input_filter_handle;
 AP_DECLARE_DATA ap_filter_rec_t *ap_http_header_filter_handle;
 AP_DECLARE_DATA ap_filter_rec_t *ap_chunk_filter_handle;
+AP_DECLARE_DATA ap_filter_rec_t *ap_http_outerror_filter_handle;
 AP_DECLARE_DATA ap_filter_rec_t *ap_byterange_filter_handle;
 
+AP_DECLARE_DATA const char *ap_multipart_boundary;
+
+/* If we are using an MPM That Supports Async Connections,
+ * use a different processing function
+ */
+static int async_mpm = 0;
+
 static const char *set_keep_alive_timeout(cmd_parms *cmd, void *dummy,
                                           const char *arg)
 {
-    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
+    apr_interval_time_t timeout;
+    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
     if (err != NULL) {
         return err;
     }
 
-    cmd->server->keep_alive_timeout = apr_time_from_sec(atoi(arg));
+    /* Stolen from mod_proxy.c */
+    if (ap_timeout_parameter_parse(arg, &timeout, "s") != APR_SUCCESS)
+        return "KeepAliveTimeout has wrong format";
+    cmd->server->keep_alive_timeout = timeout;
     return NULL;
 }
 
 static const char *set_keep_alive(cmd_parms *cmd, void *dummy,
-                                  const char *arg)
+                                  int arg)
 {
-    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
+    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
     if (err != NULL) {
         return err;
     }
 
-    /* We've changed it to On/Off, but used to use numbers
-     * so we accept anything but "Off" or "0" as "On"
-     */
-    if (!strcasecmp(arg, "off") || !strcmp(arg, "0")) {
-        cmd->server->keep_alive = 0;
-    }
-    else {
-        cmd->server->keep_alive = 1;
-    }
+    cmd->server->keep_alive = arg;
     return NULL;
 }
 
 static const char *set_keep_alive_max(cmd_parms *cmd, void *dummy,
                                       const char *arg)
 {
-    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
+    const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
     if (err != NULL) {
         return err;
     }
@@ -91,18 +94,30 @@ static const command_rec http_cmds[] = {
     AP_INIT_TAKE1("MaxKeepAliveRequests", set_keep_alive_max, NULL, RSRC_CONF,
                   "Maximum number of Keep-Alive requests per connection, "
                   "or 0 for infinite"),
-    AP_INIT_TAKE1("KeepAlive", set_keep_alive, NULL, RSRC_CONF,
+    AP_INIT_FLAG("KeepAlive", set_keep_alive, NULL, RSRC_CONF,
                   "Whether persistent connections should be On or Off"),
     { NULL }
 };
 
 static const char *http_scheme(const request_rec *r)
 {
+    /*
+     * The http module shouldn't return anything other than
+     * "http" (the default) or "https".
+     */
+    if (r->server->server_scheme &&
+        (strcmp(r->server->server_scheme, "https") == 0))
+        return "https";
+
     return "http";
 }
 
 static apr_port_t http_port(const request_rec *r)
 {
+    if (r->server->server_scheme &&
+        (strcmp(r->server->server_scheme, "https") == 0))
+        return DEFAULT_HTTPS_PORT;
+
     return DEFAULT_HTTP_PORT;
 }
 
@@ -111,10 +126,11 @@ static int ap_process_http_async_connection(conn_rec *c)
     request_rec *r;
     conn_state_t *cs = c->cs;
 
+    AP_DEBUG_ASSERT(cs != NULL);
     AP_DEBUG_ASSERT(cs->state == CONN_STATE_READ_REQUEST_LINE);
 
     while (cs->state == CONN_STATE_READ_REQUEST_LINE) {
-        ap_update_child_status(c->sbh, SERVER_BUSY_READ, NULL);
+        ap_update_child_status_from_conn(c->sbh, SERVER_BUSY_READ, c);
 
         if ((r = ap_read_request(c))) {
 
@@ -135,7 +151,8 @@ static int ap_process_http_async_connection(conn_rec *c)
                 r = NULL;
             }
 
-            if (cs->state != CONN_STATE_WRITE_COMPLETION) {
+            if (cs->state != CONN_STATE_WRITE_COMPLETION &&
+                cs->state != CONN_STATE_SUSPENDED) {
                 /* Something went wrong; close the connection */
                 cs->state = CONN_STATE_LINGER;
             }
@@ -148,18 +165,19 @@ static int ap_process_http_async_connection(conn_rec *c)
     return OK;
 }
 
-static int ap_process_http_connection(conn_rec *c)
+static int ap_process_http_sync_connection(conn_rec *c)
 {
     request_rec *r;
     conn_state_t *cs = c->cs;
     apr_socket_t *csd = NULL;
+    int mpm_state = 0;
 
     /*
      * Read and process each request found on our connection
      * until no requests are left or we decide to close.
      */
 
-    ap_update_child_status(c->sbh, SERVER_BUSY_READ, NULL);
+    ap_update_child_status_from_conn(c->sbh, SERVER_BUSY_READ, c);
     while ((r = ap_read_request(c)) != NULL) {
 
         c->keepalive = AP_CONN_UNKNOWN;
@@ -184,11 +202,16 @@ static int ap_process_http_connection(conn_rec *c)
 
         ap_update_child_status(c->sbh, SERVER_BUSY_KEEPALIVE, NULL);
 
-        if (ap_graceful_stop_signalled())
+        if (ap_mpm_query(AP_MPMQ_MPM_STATE, &mpm_state)) {
             break;
+        }
+
+        if (mpm_state == AP_MPMQ_STOPPING) {
+          break;
+        }
 
         if (!csd) {
-            csd = ap_get_module_config(c->conn_config, &core_module);
+            csd = ap_get_conn_socket(c);
         }
         apr_socket_opt_set(csd, APR_INCOMPLETE_READ, 1);
         apr_socket_timeout_set(csd, c->base_server->keep_alive_timeout);
@@ -198,6 +221,16 @@ static int ap_process_http_connection(conn_rec *c)
     return OK;
 }
 
+static int ap_process_http_connection(conn_rec *c)
+{
+    if (async_mpm && !c->clogging_input_filters) {
+        return ap_process_http_async_connection(c);
+    }
+    else {
+        return ap_process_http_sync_connection(c);
+    }
+}
+
 static int http_create_request(request_rec *r)
 {
     if (!r->main && !r->prev) {
@@ -207,29 +240,41 @@ static int http_create_request(request_rec *r)
                                     NULL, r, r->connection);
         ap_add_output_filter_handle(ap_http_header_filter_handle,
                                     NULL, r, r->connection);
+        ap_add_output_filter_handle(ap_http_outerror_filter_handle,
+                                    NULL, r, r->connection);
     }
 
     return OK;
 }
 
-static void register_hooks(apr_pool_t *p)
+static int http_send_options(request_rec *r)
 {
-    /**
-     * If we ae using an MPM That Supports Async Connections,
-     * use a different processing function
-     */
-    int async_mpm = 0;
-    if (ap_mpm_query(AP_MPMQ_IS_ASYNC, &async_mpm) == APR_SUCCESS
-        && async_mpm == 1) {
-        ap_hook_process_connection(ap_process_http_async_connection, NULL,
-                                   NULL, APR_HOOK_REALLY_LAST);
+    if ((r->method_number == M_OPTIONS) && r->uri && (r->uri[0] == '*') &&
+         (r->uri[1] == '\0')) {
+        return DONE;           /* Send HTTP pong, without Allow header */
     }
-    else {
-        ap_hook_process_connection(ap_process_http_connection, NULL, NULL,
-                                   APR_HOOK_REALLY_LAST);
+    return DECLINED;
+}
+
+static int http_post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
+{
+    apr_uint64_t val;
+    if (ap_mpm_query(AP_MPMQ_IS_ASYNC, &async_mpm) != APR_SUCCESS) {
+        async_mpm = 0;
     }
+    ap_random_insecure_bytes(&val, sizeof(val));
+    ap_multipart_boundary = apr_psprintf(p, "%0" APR_UINT64_T_HEX_FMT, val);
 
+    return OK;
+}
+
+static void register_hooks(apr_pool_t *p)
+{
+    ap_hook_post_config(http_post_config, NULL, NULL, APR_HOOK_MIDDLE);
+    ap_hook_process_connection(ap_process_http_connection, NULL, NULL,
+                               APR_HOOK_REALLY_LAST);
     ap_hook_map_to_storage(ap_send_http_trace,NULL,NULL,APR_HOOK_MIDDLE);
+    ap_hook_map_to_storage(http_send_options,NULL,NULL,APR_HOOK_MIDDLE);
     ap_hook_http_scheme(http_scheme,NULL,NULL,APR_HOOK_REALLY_LAST);
     ap_hook_default_port(http_port,NULL,NULL,APR_HOOK_REALLY_LAST);
     ap_hook_create_request(http_create_request, NULL, NULL, APR_HOOK_REALLY_LAST);
@@ -242,18 +287,21 @@ static void register_hooks(apr_pool_t *p)
     ap_chunk_filter_handle =
         ap_register_output_filter("CHUNK", ap_http_chunk_filter,
                                   NULL, AP_FTYPE_TRANSCODE);
+    ap_http_outerror_filter_handle =
+        ap_register_output_filter("HTTP_OUTERROR", ap_http_outerror_filter,
+                                  NULL, AP_FTYPE_PROTOCOL);
     ap_byterange_filter_handle =
         ap_register_output_filter("BYTERANGE", ap_byterange_filter,
                                   NULL, AP_FTYPE_PROTOCOL);
     ap_method_registry_init(p);
 }
 
-module AP_MODULE_DECLARE_DATA http_module = {
+AP_DECLARE_MODULE(http) = {
     STANDARD20_MODULE_STUFF,
-    NULL,                      /* create per-directory config structure */
-    NULL,                      /* merge per-directory config structures */
-    NULL,                      /* create per-server config structure */
-    NULL,                      /* merge per-server config structures */
-    http_cmds,                 /* command apr_table_t */
-    register_hooks             /* register hooks */
+    NULL,              /* create per-directory config structure */
+    NULL,              /* merge per-directory config structures */
+    NULL,              /* create per-server config structure */
+    NULL,              /* merge per-server config structures */
+    http_cmds,         /* command apr_table_t */
+    register_hooks     /* register hooks */
 };