Adding upstream version 2.4.56.upstream/2.4.56upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 128 insertions, 0 deletions

diff --git a/modules/generators/mod_asis.c b/modules/generators/mod_asis.c
new file mode 100644
index 0000000..c2b651b
--- /dev/null
+++ b/modules/generators/mod_asis.c
@@ -0,0 +1,128 @@
+/* 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
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr_strings.h"
+#include "ap_config.h"
+#include "httpd.h"
+#include "http_config.h"
+#include "http_protocol.h"
+#include "http_log.h"
+#include "util_script.h"
+#include "http_main.h"
+#include "http_request.h"
+
+#include "mod_core.h"
+
+#define ASIS_MAGIC_TYPE "httpd/send-as-is"
+
+static int asis_handler(request_rec *r)
+{
+    apr_file_t *f;
+    apr_status_t rv;
+    const char *location;
+
+    if (strcmp(r->handler, ASIS_MAGIC_TYPE) && strcmp(r->handler, "send-as-is")) {
+        return DECLINED;
+    }
+
+    r->allowed |= (AP_METHOD_BIT << M_GET);
+    if (r->method_number != M_GET) {
+        return DECLINED;
+    }
+
+    if (r->finfo.filetype == APR_NOFILE) {
+        ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(01233)
+                    "File does not exist: %s", r->filename);
+        return HTTP_NOT_FOUND;
+    }
+
+    if ((rv = apr_file_open(&f, r->filename, APR_READ,
+                APR_OS_DEFAULT, r->pool)) != APR_SUCCESS) {
+        ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01234)
+                    "file permissions deny server access: %s", r->filename);
+        return HTTP_FORBIDDEN;
+    }
+
+    ap_scan_script_header_err_ex(r, f, NULL, APLOG_MODULE_INDEX);
+    location = apr_table_get(r->headers_out, "Location");
+
+    if (location && location[0] == '/' &&
+        ((r->status == HTTP_OK) || ap_is_HTTP_REDIRECT(r->status))) {
+
+        apr_file_close(f);
+
+        /* Internal redirect -- fake-up a pseudo-request */
+        r->status = HTTP_OK;
+
+        /* This redirect needs to be a GET no matter what the original
+         * method was.
+         */
+        r->method = "GET";
+        r->method_number = M_GET;
+
+        ap_internal_redirect_handler(location, r);
+        return OK;
+    }
+
+    if (!r->header_only) {
+        conn_rec *c = r->connection;
+        apr_bucket_brigade *bb;
+        apr_bucket *b;
+        apr_off_t pos = 0;
+
+        rv = apr_file_seek(f, APR_CUR, &pos);
+        if (rv != APR_SUCCESS) {
+            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01235)
+                          "mod_asis: failed to find end-of-headers position "
+                          "for %s", r->filename);
+            apr_file_close(f);
+            return HTTP_INTERNAL_SERVER_ERROR;
+        }
+
+        bb = apr_brigade_create(r->pool, c->bucket_alloc);
+        apr_brigade_insert_file(bb, f, pos, r->finfo.size - pos, r->pool);
+
+        b = apr_bucket_eos_create(c->bucket_alloc);
+        APR_BRIGADE_INSERT_TAIL(bb, b);
+        rv = ap_pass_brigade(r->output_filters, bb);
+        if (rv != APR_SUCCESS) {
+            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01236)
+                          "mod_asis: ap_pass_brigade failed for file %s", r->filename);
+            return AP_FILTER_ERROR;
+        }
+    }
+    else {
+        apr_file_close(f);
+    }
+
+    return OK;
+}
+
+static void register_hooks(apr_pool_t *p)
+{
+    ap_hook_handler(asis_handler,NULL,NULL,APR_HOOK_MIDDLE);
+}
+
+AP_DECLARE_MODULE(asis) =
+{
+    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 */
+    NULL,              /* command apr_table_t */
+    register_hooks     /* register hooks */
+};