1 files changed, 120 insertions, 0 deletions
diff --git a/src/core/lib/http/format_request.cc b/src/core/lib/http/format_request.cc
new file mode 100644
index 0000000000..88fb0ab0b6
--- /dev/null
+++ b/src/core/lib/http/format_request.cc
@@ -0,0 +1,120 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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 "src/core/lib/http/format_request.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <grpc/slice.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
+
+static void fill_common_header(const grpc_httpcli_request *request,
+                               gpr_strvec *buf, bool connection_close) {
+  size_t i;
+  gpr_strvec_add(buf, gpr_strdup(request->http.path));
+  gpr_strvec_add(buf, gpr_strdup(" HTTP/1.0\r\n"));
+  /* just in case some crazy server really expects HTTP/1.1 */
+  gpr_strvec_add(buf, gpr_strdup("Host: "));
+  gpr_strvec_add(buf, gpr_strdup(request->host));
+  gpr_strvec_add(buf, gpr_strdup("\r\n"));
+  if (connection_close)
+    gpr_strvec_add(buf, gpr_strdup("Connection: close\r\n"));
+  gpr_strvec_add(buf,
+                 gpr_strdup("User-Agent: " GRPC_HTTPCLI_USER_AGENT "\r\n"));
+  /* user supplied headers */
+  for (i = 0; i < request->http.hdr_count; i++) {
+    gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].key));
+    gpr_strvec_add(buf, gpr_strdup(": "));
+    gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].value));
+    gpr_strvec_add(buf, gpr_strdup("\r\n"));
+  }
+}
+
+grpc_slice grpc_httpcli_format_get_request(
+    const grpc_httpcli_request *request) {
+  gpr_strvec out;
+  char *flat;
+  size_t flat_len;
+
+  gpr_strvec_init(&out);
+  gpr_strvec_add(&out, gpr_strdup("GET "));
+  fill_common_header(request, &out, true);
+  gpr_strvec_add(&out, gpr_strdup("\r\n"));
+
+  flat = gpr_strvec_flatten(&out, &flat_len);
+  gpr_strvec_destroy(&out);
+
+  return grpc_slice_new(flat, flat_len, gpr_free);
+}
+
+grpc_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
+                                            const char *body_bytes,
+                                            size_t body_size) {
+  gpr_strvec out;
+  char *tmp;
+  size_t out_len;
+  size_t i;
+
+  gpr_strvec_init(&out);
+
+  gpr_strvec_add(&out, gpr_strdup("POST "));
+  fill_common_header(request, &out, true);
+  if (body_bytes) {
+    uint8_t has_content_type = 0;
+    for (i = 0; i < request->http.hdr_count; i++) {
+      if (strcmp(request->http.hdrs[i].key, "Content-Type") == 0) {
+        has_content_type = 1;
+        break;
+      }
+    }
+    if (!has_content_type) {
+      gpr_strvec_add(&out, gpr_strdup("Content-Type: text/plain\r\n"));
+    }
+    gpr_asprintf(&tmp, "Content-Length: %lu\r\n", (unsigned long)body_size);
+    gpr_strvec_add(&out, tmp);
+  }
+  gpr_strvec_add(&out, gpr_strdup("\r\n"));
+  tmp = gpr_strvec_flatten(&out, &out_len);
+  gpr_strvec_destroy(&out);
+
+  if (body_bytes) {
+    tmp = (char *)gpr_realloc(tmp, out_len + body_size);
+    memcpy(tmp + out_len, body_bytes, body_size);
+    out_len += body_size;
+  }
+
+  return grpc_slice_new(tmp, out_len, gpr_free);
+}
+
+grpc_slice grpc_httpcli_format_connect_request(
+    const grpc_httpcli_request *request) {
+  gpr_strvec out;
+  gpr_strvec_init(&out);
+  gpr_strvec_add(&out, gpr_strdup("CONNECT "));
+  fill_common_header(request, &out, false);
+  gpr_strvec_add(&out, gpr_strdup("\r\n"));
+  size_t flat_len;
+  char *flat = gpr_strvec_flatten(&out, &flat_len);
+  gpr_strvec_destroy(&out);
+  return grpc_slice_new(flat, flat_len, gpr_free);
+}