1 files changed, 135 insertions, 0 deletions
diff --git a/buckets/response_body_buckets.c b/buckets/response_body_buckets.c
new file mode 100644
index 0000000000000..c9648a69f6dab
--- /dev/null
+++ b/buckets/response_body_buckets.c
@@ -0,0 +1,135 @@
+/* Copyright 2002-2004 Justin Erenkrantz and Greg Stein
+ *
+ * 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
+ *
+ *     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_pools.h>
+
+#include "serf.h"
+#include "serf_bucket_util.h"
+
+/* Older versions of APR do not have this macro.  */
+#ifdef APR_SIZE_MAX
+#define REQUESTED_MAX APR_SIZE_MAX
+#else
+#define REQUESTED_MAX (~((apr_size_t)0))
+#endif
+
+
+typedef struct {
+    serf_bucket_t *stream;
+    apr_uint64_t remaining;
+} body_context_t;
+
+serf_bucket_t *serf_bucket_response_body_create(
+    serf_bucket_t *stream, apr_uint64_t len, serf_bucket_alloc_t *allocator)
+{
+    body_context_t *ctx;
+
+    ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
+    ctx->stream = stream;
+    ctx->remaining = len;
+
+    return serf_bucket_create(&serf_bucket_type_response_body, allocator, ctx);
+}
+
+static apr_status_t serf_response_body_read(serf_bucket_t *bucket,
+                                            apr_size_t requested,
+                                            const char **data,
+                                            apr_size_t *len)
+{
+    body_context_t *ctx = bucket->data;
+    apr_status_t status;
+
+    if (!ctx->remaining) {
+        *len = 0;
+        return APR_EOF;
+    }
+
+    if (requested == SERF_READ_ALL_AVAIL || requested > ctx->remaining) {
+        if (ctx->remaining <= REQUESTED_MAX) {
+            requested = (apr_size_t) ctx->remaining;
+        } else {
+            requested = REQUESTED_MAX;
+        }
+    }
+
+    status = serf_bucket_read(ctx->stream, requested, data, len);
+
+    if (!SERF_BUCKET_READ_ERROR(status)) {
+        ctx->remaining -= *len;
+    }
+
+    if (APR_STATUS_IS_EOF(status) && ctx->remaining > 0) {
+        /* The server sent less data than expected. */
+        status = SERF_ERROR_TRUNCATED_HTTP_RESPONSE;
+    }
+
+    return status;
+}
+
+static apr_status_t serf_response_body_readline(serf_bucket_t *bucket,
+                                                int acceptable, int *found,
+                                                const char **data,
+                                                apr_size_t *len)
+{
+    body_context_t *ctx = bucket->data;
+    apr_status_t status;
+
+    if (!ctx->remaining) {
+        *len = 0;
+        return APR_EOF;
+    }
+
+    status = serf_bucket_readline(ctx->stream, acceptable, found, data, len);
+
+    if (!SERF_BUCKET_READ_ERROR(status)) {
+        ctx->remaining -= *len;
+    }
+
+    if (APR_STATUS_IS_EOF(status) && ctx->remaining > 0) {
+        /* The server sent less data than expected. */
+        status = SERF_ERROR_TRUNCATED_HTTP_RESPONSE;
+    }
+
+    return status;
+}
+
+static apr_status_t serf_response_body_peek(serf_bucket_t *bucket,
+                                            const char **data,
+                                            apr_size_t *len)
+{
+    body_context_t *ctx = bucket->data;
+
+    return serf_bucket_peek(ctx->stream, data, len);
+}
+
+static void serf_response_body_destroy(serf_bucket_t *bucket)
+{
+    body_context_t *ctx = bucket->data;
+
+    serf_bucket_destroy(ctx->stream);
+
+    serf_default_destroy_and_data(bucket);
+}
+
+const serf_bucket_type_t serf_bucket_type_response_body = {
+    "RESPONSE_BODY",
+    serf_response_body_read,
+    serf_response_body_readline,
+    serf_default_read_iovec,
+    serf_default_read_for_sendfile,
+    serf_default_read_bucket,
+    serf_response_body_peek,
+    serf_response_body_destroy,
+};