1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #include <grpc/support/port_platform.h> 20 21 #include "src/core/lib/http/format_request.h" 22 23 #include <stdarg.h> 24 #include <stdio.h> 25 #include <string.h> 26 27 #include <grpc/slice.h> 28 #include <grpc/support/alloc.h> 29 #include <grpc/support/string_util.h> 30 #include "src/core/lib/gpr/string.h" 31 32 static void fill_common_header(const grpc_httpcli_request* request, 33 gpr_strvec* buf, bool connection_close) { 34 size_t i; 35 gpr_strvec_add(buf, gpr_strdup(request->http.path)); 36 gpr_strvec_add(buf, gpr_strdup(" HTTP/1.0\r\n")); 37 /* just in case some crazy server really expects HTTP/1.1 */ 38 gpr_strvec_add(buf, gpr_strdup("Host: ")); 39 gpr_strvec_add(buf, gpr_strdup(request->host)); 40 gpr_strvec_add(buf, gpr_strdup("\r\n")); 41 if (connection_close) 42 gpr_strvec_add(buf, gpr_strdup("Connection: close\r\n")); 43 gpr_strvec_add(buf, 44 gpr_strdup("User-Agent: " GRPC_HTTPCLI_USER_AGENT "\r\n")); 45 /* user supplied headers */ 46 for (i = 0; i < request->http.hdr_count; i++) { 47 gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].key)); 48 gpr_strvec_add(buf, gpr_strdup(": ")); 49 gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].value)); 50 gpr_strvec_add(buf, gpr_strdup("\r\n")); 51 } 52 } 53 54 grpc_slice grpc_httpcli_format_get_request( 55 const grpc_httpcli_request* request) { 56 gpr_strvec out; 57 char* flat; 58 size_t flat_len; 59 60 gpr_strvec_init(&out); 61 gpr_strvec_add(&out, gpr_strdup("GET ")); 62 fill_common_header(request, &out, true); 63 gpr_strvec_add(&out, gpr_strdup("\r\n")); 64 65 flat = gpr_strvec_flatten(&out, &flat_len); 66 gpr_strvec_destroy(&out); 67 68 return grpc_slice_new(flat, flat_len, gpr_free); 69 } 70 71 grpc_slice grpc_httpcli_format_post_request(const grpc_httpcli_request* request, 72 const char* body_bytes, 73 size_t body_size) { 74 gpr_strvec out; 75 char* tmp; 76 size_t out_len; 77 size_t i; 78 79 gpr_strvec_init(&out); 80 81 gpr_strvec_add(&out, gpr_strdup("POST ")); 82 fill_common_header(request, &out, true); 83 if (body_bytes) { 84 uint8_t has_content_type = 0; 85 for (i = 0; i < request->http.hdr_count; i++) { 86 if (strcmp(request->http.hdrs[i].key, "Content-Type") == 0) { 87 has_content_type = 1; 88 break; 89 } 90 } 91 if (!has_content_type) { 92 gpr_strvec_add(&out, gpr_strdup("Content-Type: text/plain\r\n")); 93 } 94 gpr_asprintf(&tmp, "Content-Length: %lu\r\n", 95 static_cast<unsigned long>(body_size)); 96 gpr_strvec_add(&out, tmp); 97 } 98 gpr_strvec_add(&out, gpr_strdup("\r\n")); 99 tmp = gpr_strvec_flatten(&out, &out_len); 100 gpr_strvec_destroy(&out); 101 102 if (body_bytes) { 103 tmp = static_cast<char*>(gpr_realloc(tmp, out_len + body_size)); 104 memcpy(tmp + out_len, body_bytes, body_size); 105 out_len += body_size; 106 } 107 108 return grpc_slice_new(tmp, out_len, gpr_free); 109 } 110 111 grpc_slice grpc_httpcli_format_connect_request( 112 const grpc_httpcli_request* request) { 113 gpr_strvec out; 114 gpr_strvec_init(&out); 115 gpr_strvec_add(&out, gpr_strdup("CONNECT ")); 116 fill_common_header(request, &out, false); 117 gpr_strvec_add(&out, gpr_strdup("\r\n")); 118 size_t flat_len; 119 char* flat = gpr_strvec_flatten(&out, &flat_len); 120 gpr_strvec_destroy(&out); 121 return grpc_slice_new(flat, flat_len, gpr_free); 122 } 123
