1 | // Copyright (c) Microsoft. All rights reserved.
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2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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3 |
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4 | #include <stdlib.h>
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5 | #include <stdint.h>
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6 | #include <stdbool.h>
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7 | #include "azure_c_shared_utility/gballoc.h"
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8 | #include "azure_c_shared_utility/platform.h"
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9 | #include "azure_c_shared_utility/xlogging.h"
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10 | #include "azure_c_shared_utility/crt_abstractions.h"
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11 | #include "azure_c_shared_utility/tlsio.h"
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12 | #include "azure_c_shared_utility/shared_util_options.h"
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13 | #include "azure_c_shared_utility/http_proxy_io.h"
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14 | #include "azure_c_shared_utility/urlencode.h"
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15 | #include "azure_c_shared_utility/azure_base64.h"
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16 |
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17 | #include "azure_prov_client/prov_transport_http_client.h"
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18 | #include "azure_prov_client/internal/prov_transport_private.h"
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19 | #include "azure_prov_client/prov_client_const.h"
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20 |
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21 | #include "azure_uhttp_c/uhttp.h"
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22 | #include "parson.h"
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23 |
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24 | #define HTTP_PORT_NUM 443
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25 | #define HTTP_STATUS_CODE_OK 200
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26 | #define HTTP_STATUS_CODE_OK_MAX 226
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27 | #define HTTP_STATUS_CODE_UNAUTHORIZED 401
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28 |
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29 | static const char* const PROV_REGISTRATION_URI_FMT = "/%s/registrations/%s/register?api-version=%s";
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30 | static const char* const PROV_OP_STATUS_URI_FMT = "/%s/registrations/%s/operations/%s?api-version=%s";
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31 | static const char* const HEADER_KEY_AUTHORIZATION = "Authorization";
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32 | static const char* const HEADER_USER_AGENT = "UserAgent";
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33 | static const char* const HEADER_ACCEPT = "Accept";
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34 | static const char* const HEADER_CONTENT_TYPE = "Content-Type";
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35 | static const char* const HEADER_CONNECTION = "Connection";
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36 | static const char* const USER_AGENT_VALUE = "prov_device_client/1.0";
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37 | static const char* const ACCEPT_VALUE = "application/json";
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38 | static const char* const CONTENT_TYPE_VALUE = "application/json; charset=utf-8";
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39 | static const char* const KEEP_ALIVE_VALUE = "keep-alive";
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40 | static const char* const KEY_NAME_VALUE = "registration";
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41 |
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42 | MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(HTTP_CALLBACK_REASON, HTTP_CALLBACK_REASON_VALUES);
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43 |
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44 | typedef enum PROV_TRANSPORT_STATE_TAG
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45 | {
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46 | TRANSPORT_CLIENT_STATE_IDLE,
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47 |
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48 | TRANSPORT_CLIENT_STATE_REG_SEND,
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49 | TRANSPORT_CLIENT_STATE_REG_SENT,
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50 | TRANSPORT_CLIENT_STATE_REG_RECV,
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51 |
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52 | TRANSPORT_CLIENT_STATE_STATUS_SENT,
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53 | TRANSPORT_CLIENT_STATE_STATUS_RECV,
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54 |
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55 | TRANSPORT_CLIENT_STATE_TRANSIENT,
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56 |
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57 | TRANSPORT_CLIENT_STATE_ERROR
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58 | } PROV_TRANSPORT_STATE;
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59 |
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60 | typedef struct PROV_TRANSPORT_HTTP_INFO_TAG
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61 | {
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62 | PROV_DEVICE_TRANSPORT_REGISTER_CALLBACK register_data_cb;
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63 | void* user_ctx;
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64 | PROV_DEVICE_TRANSPORT_STATUS_CALLBACK status_cb;
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65 | void* status_ctx;
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66 | PROV_TRANSPORT_CHALLENGE_CALLBACK challenge_cb;
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67 | void* challenge_ctx;
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68 | PROV_TRANSPORT_CREATE_JSON_PAYLOAD json_create_cb;
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69 | PROV_TRANSPORT_JSON_PARSE json_parse_cb;
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70 | void* json_ctx;
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71 |
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72 | char* hostname;
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73 | char* proxy_host;
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74 | int proxy_port;
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75 | char* username;
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76 | char* password;
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77 |
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78 | char* x509_cert;
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79 | char* private_key;
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80 |
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81 | char* certificate;
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82 |
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83 | BUFFER_HANDLE ek;
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84 | BUFFER_HANDLE srk;
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85 | char* registration_id;
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86 | char* scope_id;
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87 | char* sas_token;
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88 |
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89 | BUFFER_HANDLE nonce;
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90 |
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91 | char* operation_id;
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92 |
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93 | char* api_version;
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94 |
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95 | char* payload_data;
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96 | unsigned int http_status_code;
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97 |
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98 | bool http_connected;
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99 | bool log_trace;
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100 | PROV_TRANSPORT_STATE transport_state;
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101 | TRANSPORT_HSM_TYPE hsm_type;
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102 |
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103 | HTTP_CLIENT_HANDLE http_client;
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104 | uint32_t retry_after_value;
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105 |
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106 | PROV_TRANSPORT_ERROR_CALLBACK error_cb;
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107 | void* error_ctx;
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108 | } PROV_TRANSPORT_HTTP_INFO;
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109 |
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110 | static void on_http_error(void* callback_ctx, HTTP_CALLBACK_REASON error_result)
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111 | {
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112 | (void)error_result;
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113 | if (callback_ctx != NULL)
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114 | {
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115 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)callback_ctx;
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116 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
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117 | LogError("http error encountered: %s", MU_ENUM_TO_STRING(HTTP_CALLBACK_REASON, error_result));
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118 | }
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119 | else
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120 | {
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121 | LogError("callback_ctx NULL. http error encountered: %s", MU_ENUM_TO_STRING(HTTP_CALLBACK_REASON, error_result));
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122 | }
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123 | }
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124 |
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125 | static void on_http_reply_recv(void* callback_ctx, HTTP_CALLBACK_REASON request_result, const unsigned char* content, size_t content_len, unsigned int status_code, HTTP_HEADERS_HANDLE responseHeadersHandle)
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126 | {
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127 | (void)responseHeadersHandle;
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128 | if (callback_ctx != NULL)
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129 | {
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130 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)callback_ctx;
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131 | http_info->http_status_code = status_code;
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132 | if (request_result != HTTP_CALLBACK_REASON_OK)
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133 | {
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134 | LogError("Failure http reply %s", MU_ENUM_TO_STRING(HTTP_CALLBACK_REASON, request_result));
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135 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
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136 | }
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137 | else if ((status_code >= HTTP_STATUS_CODE_OK && status_code <= HTTP_STATUS_CODE_OK_MAX) || status_code == HTTP_STATUS_CODE_UNAUTHORIZED)
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138 | {
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139 | if (content != NULL && content_len > 0)
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140 | {
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141 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_038: [ prov_transport_http_dowork shall free the payload_data ] */
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142 | if (http_info->payload_data != NULL)
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143 | {
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144 | free(http_info->payload_data);
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145 | }
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146 | http_info->payload_data = malloc(content_len + 1);
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147 | if (http_info->payload_data == NULL)
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148 | {
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149 | LogError("Failure sending http request");
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150 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
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151 | }
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152 | else
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153 | {
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154 | memset(http_info->payload_data, 0, content_len + 1);
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155 | memcpy(http_info->payload_data, content, content_len);
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156 | if (http_info->transport_state == TRANSPORT_CLIENT_STATE_REG_SENT)
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157 | {
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158 | http_info->transport_state = TRANSPORT_CLIENT_STATE_REG_RECV;
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159 | }
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160 | else
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161 | {
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162 | http_info->transport_state = TRANSPORT_CLIENT_STATE_STATUS_RECV;
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163 | }
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164 | }
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165 | }
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166 | else
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167 | {
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168 | if (http_info->transport_state == TRANSPORT_CLIENT_STATE_REG_SENT)
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169 | {
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170 | http_info->transport_state = TRANSPORT_CLIENT_STATE_REG_RECV;
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171 | }
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172 | else
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173 | {
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174 | http_info->transport_state = TRANSPORT_CLIENT_STATE_STATUS_RECV;
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175 | }
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176 | }
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177 | }
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178 | else if (status_code >= PROV_STATUS_CODE_TRANSIENT_ERROR)
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179 | {
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180 | // On transient error reset the transport to send state
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181 | http_info->transport_state = TRANSPORT_CLIENT_STATE_TRANSIENT;
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182 | }
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183 | else
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184 | {
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185 | LogError("Failure status code sent from the server: %u", status_code);
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186 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
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187 | }
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188 | // The call to parse_retry_after_value can not fail
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189 | http_info->retry_after_value = parse_retry_after_value(HTTPHeaders_FindHeaderValue(responseHeadersHandle, RETRY_AFTER_KEY_VALUE));
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190 | }
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191 | else
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192 | {
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193 | LogError("Null callback_ctx specified");
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194 | }
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195 | }
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196 |
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197 | static void on_http_connected(void* callback_ctx, HTTP_CALLBACK_REASON open_result)
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198 | {
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199 | if (callback_ctx != NULL)
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200 | {
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201 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)callback_ctx;
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202 | if (open_result == HTTP_CALLBACK_REASON_OK)
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203 | {
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204 | if (http_info->status_cb != NULL)
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205 | {
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206 | http_info->status_cb(PROV_DEVICE_TRANSPORT_STATUS_CONNECTED, http_info->retry_after_value, http_info->status_ctx);
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207 | }
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208 | http_info->http_connected = true;
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209 | }
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210 | else
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211 | {
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212 | LogError("Http connection failed to connect");
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213 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
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214 | http_info->http_connected = false;
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215 | }
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216 | }
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217 | else
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218 | {
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219 | LogError("Null callback_ctx specified");
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220 | }
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221 | }
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222 |
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223 | static HTTP_HEADERS_HANDLE construct_http_headers(const char* sas_token)
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224 | {
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225 | HTTP_HEADERS_HANDLE result;
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226 | if ((result = HTTPHeaders_Alloc()) == NULL)
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227 | {
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228 | LogError("failure sending request");
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229 | }
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230 | else
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231 | {
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232 | if ((HTTPHeaders_AddHeaderNameValuePair(result, HEADER_USER_AGENT, USER_AGENT_VALUE) != HTTP_HEADERS_OK) ||
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233 | (HTTPHeaders_AddHeaderNameValuePair(result, HEADER_ACCEPT, ACCEPT_VALUE) != HTTP_HEADERS_OK) ||
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234 | (HTTPHeaders_AddHeaderNameValuePair(result, HEADER_CONNECTION, KEEP_ALIVE_VALUE) != HTTP_HEADERS_OK) ||
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235 | (HTTPHeaders_AddHeaderNameValuePair(result, HEADER_CONTENT_TYPE, CONTENT_TYPE_VALUE) != HTTP_HEADERS_OK))
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236 | {
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237 | LogError("failure adding header value");
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238 | HTTPHeaders_Free(result);
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239 | result = NULL;
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240 | }
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241 | else
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242 | {
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243 | if (sas_token != NULL)
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244 | {
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245 | if (HTTPHeaders_AddHeaderNameValuePair(result, HEADER_KEY_AUTHORIZATION, sas_token) != HTTP_HEADERS_OK)
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246 | {
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247 | LogError("failure adding sas_token header value");
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248 | HTTPHeaders_Free(result);
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249 | result = NULL;
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250 | }
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251 | }
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252 | }
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253 | }
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254 | return result;
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255 | }
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256 |
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257 | static char* construct_json_data(PROV_TRANSPORT_HTTP_INFO* http_info)
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258 | {
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259 | char* result;
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260 | bool data_success = true;
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261 | STRING_HANDLE encoded_srk = NULL;
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262 | STRING_HANDLE encoded_ek = NULL;
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263 | const char* ek_value = NULL;
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264 | const char* srk_value = NULL;
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265 |
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266 | // For TPM we need to add tpm encoded values
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267 | if (http_info->hsm_type == TRANSPORT_HSM_TYPE_TPM)
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268 | {
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269 | if ((encoded_ek = Azure_Base64_Encode(http_info->ek)) == NULL)
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270 | {
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271 | LogError("Failure encoding ek");
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272 | data_success = false;
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273 | }
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274 | else if ((encoded_srk = Azure_Base64_Encode(http_info->srk)) == NULL)
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275 | {
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276 | LogError("Failure encoding srk");
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277 | data_success = false;
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278 | }
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279 | else
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280 | {
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281 | ek_value = STRING_c_str(encoded_ek);
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282 | srk_value = STRING_c_str(encoded_srk);
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283 | }
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284 | }
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285 |
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286 | if (data_success)
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287 | {
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288 | result = http_info->json_create_cb(ek_value, srk_value, http_info->json_ctx);
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289 | }
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290 | else
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291 | {
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292 | result = NULL;
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293 | }
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294 |
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295 | if (encoded_srk != NULL)
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296 | {
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297 | STRING_delete(encoded_srk);
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298 | }
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299 | if (encoded_ek != NULL)
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300 | {
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301 | STRING_delete(encoded_ek);
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302 | }
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303 | return result;
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304 | }
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305 |
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306 | static char* construct_url_path(PROV_TRANSPORT_HTTP_INFO* http_info)
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307 | {
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308 | char* result;
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309 | size_t path_len;
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310 | STRING_HANDLE encoded_scope;
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311 |
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312 | STRING_HANDLE encoded_reg_id = URL_EncodeString(http_info->registration_id);
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313 | if (encoded_reg_id == NULL)
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314 | {
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315 | LogError("Failure encoding reg id");
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316 | result = NULL;
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317 | }
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318 | else if ((encoded_scope = URL_EncodeString(http_info->scope_id)) == NULL)
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319 | {
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320 | LogError("Failure encoding string value");
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321 | STRING_delete(encoded_reg_id);
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322 | result = NULL;
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323 | }
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324 | else
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325 | {
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326 | if (http_info->operation_id == NULL)
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327 | {
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328 | path_len = strlen(PROV_REGISTRATION_URI_FMT) + STRING_length(encoded_scope) + STRING_length(encoded_reg_id) + strlen(http_info->api_version);
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329 | if ((result = malloc(path_len + 1)) == NULL)
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330 | {
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331 | LogError("Failure allocating url path");
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332 | }
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333 | else
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334 | {
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335 | if (sprintf(result, PROV_REGISTRATION_URI_FMT, STRING_c_str(encoded_scope), STRING_c_str(encoded_reg_id), http_info->api_version) == 0)
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336 | {
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337 | LogError("Failure constructing url path");
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338 | free(result);
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339 | result = NULL;
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340 | }
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341 | }
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342 | }
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343 | else
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344 | {
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345 | STRING_HANDLE encoded_op_id = URL_EncodeString(http_info->operation_id);
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346 | if (encoded_op_id == NULL)
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347 | {
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348 | LogError("Failure encoding operation id");
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349 | result = NULL;
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350 | }
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351 | else
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352 | {
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353 | path_len = strlen(PROV_OP_STATUS_URI_FMT) + STRING_length(encoded_scope) + STRING_length(encoded_reg_id) + STRING_length(encoded_op_id) + strlen(http_info->api_version);
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354 | if ((result = malloc(path_len + 1)) == NULL)
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355 | {
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356 | LogError("failure allocating retrieval path");
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357 | }
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358 | else
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359 | {
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360 | if (sprintf(result, PROV_OP_STATUS_URI_FMT, STRING_c_str(encoded_scope), STRING_c_str(encoded_reg_id), STRING_c_str(encoded_op_id), http_info->api_version) == 0)
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361 | {
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362 | LogError("failure allocating retrieval path");
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363 | free(result);
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364 | result = NULL;
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365 | }
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366 | }
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367 | STRING_delete(encoded_op_id);
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368 | }
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369 | }
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370 | STRING_delete(encoded_scope);
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371 | STRING_delete(encoded_reg_id);
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372 | }
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373 | return result;
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374 | }
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375 |
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376 | static int send_registration_info(PROV_TRANSPORT_HTTP_INFO* http_info)
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377 | {
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378 | int result;
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379 | char* uri_path;
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380 | char* json_data;
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381 | HTTP_HEADERS_HANDLE http_headers;
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382 |
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383 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_018: [ prov_transport_http_register_device shall construct the http headers for anonymous communication to the service. ] */
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384 | if ((http_headers = construct_http_headers(http_info->sas_token)) == NULL)
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385 | {
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386 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_021: [ If any error is encountered prov_transport_http_register_device shall return a non-zero value. ] */
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387 | LogError("failure constructing http headers");
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388 | result = MU_FAILURE;
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389 | }
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390 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_019: [ prov_transport_http_register_device shall construct the path to the service in the following format: /<scope_id>/registrations/<url_encoded_registration_id>/register-me?api-version=<api_version> ] */
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391 | else if ((uri_path = construct_url_path(http_info)) == NULL)
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392 | {
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393 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_021: [ If any error is encountered prov_transport_http_register_device shall return a non-zero value. ] */
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394 | LogError("Failure constructing uri path");
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395 | HTTPHeaders_Free(http_headers);
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396 | result = MU_FAILURE;
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397 | }
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398 | else if ((json_data = construct_json_data(http_info)) == NULL)
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399 | {
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400 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_021: [ If any error is encountered prov_transport_http_register_device shall return a non-zero value. ] */
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401 | LogError("Failure constructing json payload");
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402 | HTTPHeaders_Free(http_headers);
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403 | free(uri_path);
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404 | result = MU_FAILURE;
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405 | }
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406 | else
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407 | {
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408 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_020: [ prov_transport_http_register_device shall send the request using the http client. ] */
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409 | if (uhttp_client_execute_request(http_info->http_client, HTTP_CLIENT_REQUEST_PUT, uri_path, http_headers, (const unsigned char*)json_data, strlen(json_data), on_http_reply_recv, http_info) != HTTP_CLIENT_OK)
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410 | {
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411 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_021: [ If any error is encountered prov_transport_http_register_device shall return a non-zero value. ] */
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412 | LogError("Failure sending http request");
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413 | result = MU_FAILURE;
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414 | }
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415 | else
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416 | {
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417 | result = 0;
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418 | }
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419 | free(uri_path);
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420 | free(json_data);
|
---|
421 | HTTPHeaders_Free(http_headers);
|
---|
422 | }
|
---|
423 | return result;
|
---|
424 | }
|
---|
425 |
|
---|
426 | static int send_challenge_response(PROV_TRANSPORT_HTTP_INFO* http_info)
|
---|
427 | {
|
---|
428 | int result;
|
---|
429 | HTTP_HEADERS_HANDLE http_headers;
|
---|
430 | char* uri_path;
|
---|
431 | char* json_data;
|
---|
432 |
|
---|
433 | if ((http_headers = construct_http_headers(http_info->sas_token)) == NULL)
|
---|
434 | {
|
---|
435 | LogError("failure constructing http headers");
|
---|
436 | result = MU_FAILURE;
|
---|
437 | }
|
---|
438 | else if ((uri_path = construct_url_path(http_info)) == NULL)
|
---|
439 | {
|
---|
440 | LogError("Failure constructing uri path");
|
---|
441 | HTTPHeaders_Free(http_headers);
|
---|
442 | result = MU_FAILURE;
|
---|
443 | }
|
---|
444 | else if ((json_data = construct_json_data(http_info)) == NULL)
|
---|
445 | {
|
---|
446 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_021: [ If any error is encountered prov_transport_http_register_device shall return a non-zero value. ] */
|
---|
447 | LogError("Failure constructing uri path");
|
---|
448 | HTTPHeaders_Free(http_headers);
|
---|
449 | free(uri_path);
|
---|
450 | result = MU_FAILURE;
|
---|
451 | }
|
---|
452 | else
|
---|
453 | {
|
---|
454 | if (uhttp_client_execute_request(http_info->http_client, HTTP_CLIENT_REQUEST_PUT, uri_path, http_headers, (const unsigned char*)json_data, strlen(json_data), on_http_reply_recv, http_info) != HTTP_CLIENT_OK)
|
---|
455 | {
|
---|
456 | LogError("Failure sending http request");
|
---|
457 | result = MU_FAILURE;
|
---|
458 | }
|
---|
459 | else
|
---|
460 | {
|
---|
461 | result = 0;
|
---|
462 | }
|
---|
463 | free(json_data);
|
---|
464 | free(uri_path);
|
---|
465 | HTTPHeaders_Free(http_headers);
|
---|
466 | }
|
---|
467 | return result;
|
---|
468 | }
|
---|
469 |
|
---|
470 | static void free_json_parse_info(PROV_JSON_INFO* parse_info)
|
---|
471 | {
|
---|
472 | switch (parse_info->prov_status)
|
---|
473 | {
|
---|
474 | case PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED:
|
---|
475 | BUFFER_delete(parse_info->authorization_key);
|
---|
476 | free(parse_info->key_name);
|
---|
477 | break;
|
---|
478 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNED:
|
---|
479 | BUFFER_delete(parse_info->authorization_key);
|
---|
480 | free(parse_info->iothub_uri);
|
---|
481 | free(parse_info->device_id);
|
---|
482 | break;
|
---|
483 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING:
|
---|
484 | free(parse_info->operation_id);
|
---|
485 | break;
|
---|
486 | default:
|
---|
487 | break;
|
---|
488 | }
|
---|
489 | free(parse_info);
|
---|
490 | }
|
---|
491 |
|
---|
492 | static void free_allocated_data(PROV_TRANSPORT_HTTP_INFO* http_info)
|
---|
493 | {
|
---|
494 | free(http_info->hostname);
|
---|
495 | free(http_info->registration_id);
|
---|
496 | free(http_info->api_version);
|
---|
497 | free(http_info->scope_id);
|
---|
498 | free(http_info->certificate);
|
---|
499 | free(http_info->proxy_host);
|
---|
500 | free(http_info->x509_cert);
|
---|
501 | free(http_info->private_key);
|
---|
502 | free(http_info->username);
|
---|
503 | free(http_info->password);
|
---|
504 | free(http_info->payload_data);
|
---|
505 | free(http_info->sas_token);
|
---|
506 | free(http_info->operation_id);
|
---|
507 | BUFFER_delete(http_info->ek);
|
---|
508 | BUFFER_delete(http_info->srk);
|
---|
509 | BUFFER_delete(http_info->nonce);
|
---|
510 | if (http_info->http_client != NULL)
|
---|
511 | {
|
---|
512 | uhttp_client_destroy(http_info->http_client);
|
---|
513 | }
|
---|
514 | free(http_info);
|
---|
515 | }
|
---|
516 |
|
---|
517 | static int create_transport_io_object(PROV_TRANSPORT_HTTP_INFO* http_info)
|
---|
518 | {
|
---|
519 | int result;
|
---|
520 | if (http_info->http_client == NULL)
|
---|
521 | {
|
---|
522 | TLSIO_CONFIG tls_io_config;
|
---|
523 | HTTP_PROXY_IO_CONFIG http_proxy;
|
---|
524 | memset(&tls_io_config, 0, sizeof(TLSIO_CONFIG));
|
---|
525 | tls_io_config.hostname = http_info->hostname;
|
---|
526 | tls_io_config.port = HTTP_PORT_NUM;
|
---|
527 |
|
---|
528 | // Setup proxy
|
---|
529 | if (http_info->proxy_host != NULL)
|
---|
530 | {
|
---|
531 | memset(&http_proxy, 0, sizeof(HTTP_PROXY_IO_CONFIG));
|
---|
532 | http_proxy.hostname = http_info->hostname;
|
---|
533 | http_proxy.port = HTTP_PORT_NUM;
|
---|
534 | http_proxy.proxy_hostname = http_info->proxy_host;
|
---|
535 | http_proxy.proxy_port = http_info->proxy_port;
|
---|
536 | http_proxy.username = http_info->username;
|
---|
537 | http_proxy.password = http_info->password;
|
---|
538 |
|
---|
539 | tls_io_config.underlying_io_interface = http_proxy_io_get_interface_description();
|
---|
540 | tls_io_config.underlying_io_parameters = &http_proxy;
|
---|
541 | }
|
---|
542 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_009: [ prov_transport_http_open shall create the http client adding any proxy and certificate information that is presented. ] */
|
---|
543 | const IO_INTERFACE_DESCRIPTION* interface_desc;
|
---|
544 |
|
---|
545 | if ((interface_desc = platform_get_default_tlsio()) == NULL)
|
---|
546 | {
|
---|
547 | LogError("failgetting tls interface description");
|
---|
548 | result = MU_FAILURE;
|
---|
549 | }
|
---|
550 | else if ((http_info->http_client = uhttp_client_create(interface_desc, &tls_io_config, on_http_error, http_info)) == NULL)
|
---|
551 | {
|
---|
552 | LogError("failed to create http client");
|
---|
553 | result = MU_FAILURE;
|
---|
554 | }
|
---|
555 | else
|
---|
556 | {
|
---|
557 | result = 0;
|
---|
558 | }
|
---|
559 | }
|
---|
560 | else
|
---|
561 | {
|
---|
562 | result = 0;
|
---|
563 | }
|
---|
564 | return result;
|
---|
565 | }
|
---|
566 |
|
---|
567 | static int create_connection(PROV_TRANSPORT_HTTP_INFO* http_info)
|
---|
568 | {
|
---|
569 | int result;
|
---|
570 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_009: [ prov_transport_http_open shall create the http client adding any proxy and certificate information that is presented. ] */
|
---|
571 | if (create_transport_io_object(http_info) != 0)
|
---|
572 | {
|
---|
573 | LogError("Failure setting transport object");
|
---|
574 | result = MU_FAILURE;
|
---|
575 | }
|
---|
576 | else
|
---|
577 | {
|
---|
578 | (void)uhttp_client_set_trace(http_info->http_client, http_info->log_trace, true);
|
---|
579 |
|
---|
580 | if (http_info->certificate != NULL && uhttp_client_set_trusted_cert(http_info->http_client, http_info->certificate) != HTTP_CLIENT_OK)
|
---|
581 | {
|
---|
582 | LogError("fail to set the trusted certificate in the http client");
|
---|
583 | uhttp_client_destroy(http_info->http_client);
|
---|
584 | http_info->http_client = NULL;
|
---|
585 | result = MU_FAILURE;
|
---|
586 | }
|
---|
587 | else
|
---|
588 | {
|
---|
589 | if (http_info->hsm_type == TRANSPORT_HSM_TYPE_X509)
|
---|
590 | {
|
---|
591 | if (http_info->x509_cert == NULL || http_info->private_key == NULL)
|
---|
592 | {
|
---|
593 | LogError("x509 certificate information was not properly set");
|
---|
594 | result = MU_FAILURE;
|
---|
595 | }
|
---|
596 | else if (uhttp_client_set_X509_cert(http_info->http_client, true, http_info->x509_cert, http_info->private_key) != HTTP_CLIENT_OK)
|
---|
597 | {
|
---|
598 | LogError("failed to set x509 certificate information");
|
---|
599 | result = MU_FAILURE;
|
---|
600 | }
|
---|
601 | else
|
---|
602 | {
|
---|
603 | result = 0;
|
---|
604 | }
|
---|
605 | }
|
---|
606 | else
|
---|
607 | {
|
---|
608 | result = 0;
|
---|
609 | }
|
---|
610 | }
|
---|
611 | }
|
---|
612 | if (result == 0 && !http_info->http_connected)
|
---|
613 | {
|
---|
614 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_010: [ prov_transport_http_open shall opening the http communications with the service. ] */
|
---|
615 | if (uhttp_client_open(http_info->http_client, http_info->hostname, HTTP_PORT_NUM, on_http_connected, http_info) != HTTP_CLIENT_OK)
|
---|
616 | {
|
---|
617 | LogError("failed to open http client");
|
---|
618 | if (http_info->error_cb != NULL)
|
---|
619 | {
|
---|
620 | http_info->error_cb(PROV_DEVICE_ERROR_KEY_FAIL, http_info->error_ctx);
|
---|
621 | }
|
---|
622 | uhttp_client_destroy(http_info->http_client);
|
---|
623 | http_info->http_client = NULL;
|
---|
624 | result = MU_FAILURE;
|
---|
625 | }
|
---|
626 | else
|
---|
627 | {
|
---|
628 | result = 0;
|
---|
629 | }
|
---|
630 | }
|
---|
631 | return result;
|
---|
632 | }
|
---|
633 |
|
---|
634 | PROV_DEVICE_TRANSPORT_HANDLE prov_transport_http_create(const char* uri, TRANSPORT_HSM_TYPE type, const char* scope_id, const char* api_version, PROV_TRANSPORT_ERROR_CALLBACK error_cb, void* error_ctx)
|
---|
635 | {
|
---|
636 | PROV_TRANSPORT_HTTP_INFO* result;
|
---|
637 | if (uri == NULL || scope_id == NULL || api_version == NULL)
|
---|
638 | {
|
---|
639 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_001: [ If uri, scope_id, registration_id or api_version are NULL prov_transport_http_create shall return NULL. ] */
|
---|
640 | LogError("Invalid parameter specified uri: %p, scope_id: %p, api_version: %p", uri, scope_id, api_version);
|
---|
641 | result = NULL;
|
---|
642 | }
|
---|
643 | else
|
---|
644 | {
|
---|
645 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_002: [ prov_transport_http_create shall allocate the memory for the PROV_DEVICE_TRANSPORT_HANDLE variables. ] */
|
---|
646 | result = malloc(sizeof(PROV_TRANSPORT_HTTP_INFO));
|
---|
647 | if (result == NULL)
|
---|
648 | {
|
---|
649 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_003: [ If any error is encountered prov_transport_http_create shall return NULL. ] */
|
---|
650 | LogError("Unable to allocate PROV_TRANSPORT_HTTP_INFO");
|
---|
651 | }
|
---|
652 | else
|
---|
653 | {
|
---|
654 | memset(result, 0, sizeof(PROV_TRANSPORT_HTTP_INFO));
|
---|
655 | if (mallocAndStrcpy_s(&result->hostname, uri) != 0)
|
---|
656 | {
|
---|
657 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_003: [ If any error is encountered prov_transport_http_create shall return NULL. ] */
|
---|
658 | LogError("Failure allocating hostname");
|
---|
659 | free(result);
|
---|
660 | result = NULL;
|
---|
661 | }
|
---|
662 | else if (mallocAndStrcpy_s(&result->api_version, api_version) != 0)
|
---|
663 | {
|
---|
664 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_003: [ If any error is encountered prov_transport_http_create shall return NULL. ] */
|
---|
665 | LogError("Failure allocating api_version");
|
---|
666 | free_allocated_data(result);
|
---|
667 | result = NULL;
|
---|
668 | }
|
---|
669 | else if (mallocAndStrcpy_s(&result->scope_id, scope_id) != 0)
|
---|
670 | {
|
---|
671 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_003: [ If any error is encountered prov_transport_http_create shall return NULL. ] */
|
---|
672 | LogError("Failure allocating scope Id");
|
---|
673 | free_allocated_data(result);
|
---|
674 | result = NULL;
|
---|
675 | }
|
---|
676 | else
|
---|
677 | {
|
---|
678 | result->retry_after_value = PROV_GET_THROTTLE_TIME;
|
---|
679 | result->hsm_type = type;
|
---|
680 | result->error_cb = error_cb;
|
---|
681 | result->error_ctx = error_ctx;
|
---|
682 | }
|
---|
683 | }
|
---|
684 | }
|
---|
685 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_004: [ On success prov_transport_http_create shall return a PROV_DEVICE_TRANSPORT_HANDLE. ] */
|
---|
686 | return result;
|
---|
687 | }
|
---|
688 |
|
---|
689 | void prov_transport_http_destroy(PROV_DEVICE_TRANSPORT_HANDLE handle)
|
---|
690 | {
|
---|
691 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_007: [ If the argument handle is NULL, prov_transport_http_destroy shall do nothing ] */
|
---|
692 | if (handle != NULL)
|
---|
693 | {
|
---|
694 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_005: [ prov_transport_http_destroy shall free all resources associated with the PROV_DEVICE_TRANSPORT_HANDLE handle ] */
|
---|
695 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
696 | free_allocated_data(http_info);
|
---|
697 | }
|
---|
698 | }
|
---|
699 |
|
---|
700 | int prov_transport_http_open(PROV_DEVICE_TRANSPORT_HANDLE handle, const char* registration_id, BUFFER_HANDLE ek, BUFFER_HANDLE srk, PROV_DEVICE_TRANSPORT_REGISTER_CALLBACK data_callback, void* user_ctx, PROV_DEVICE_TRANSPORT_STATUS_CALLBACK status_cb, void* status_ctx, PROV_TRANSPORT_CHALLENGE_CALLBACK reg_challenge_cb, void* challenge_ctx)
|
---|
701 | {
|
---|
702 | int result;
|
---|
703 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
704 | if (http_info == NULL || data_callback == NULL || status_cb == NULL || registration_id == NULL)
|
---|
705 | {
|
---|
706 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_008: [ If the argument handle, data_callback, or status_cb are NULL, prov_transport_http_open shall return a non-zero value. ] */
|
---|
707 | LogError("Invalid parameter specified handle: %p, data_callback: %p, status_cb: %p, registration_id: %p", handle, data_callback, status_cb, registration_id);
|
---|
708 | result = MU_FAILURE;
|
---|
709 | }
|
---|
710 | else if ((http_info->hsm_type == TRANSPORT_HSM_TYPE_TPM || http_info->hsm_type == TRANSPORT_HSM_TYPE_SYMM_KEY) && reg_challenge_cb == NULL)
|
---|
711 | {
|
---|
712 | LogError("registration challenge callback must be set");
|
---|
713 | result = MU_FAILURE;
|
---|
714 | }
|
---|
715 | else if (http_info->hsm_type == TRANSPORT_HSM_TYPE_TPM && (ek == NULL || srk == NULL))
|
---|
716 | {
|
---|
717 | LogError("Invalid parameter specified ek: %p, srk: %p", ek, srk);
|
---|
718 | result = MU_FAILURE;
|
---|
719 | }
|
---|
720 | else if (ek != NULL && (http_info->ek = BUFFER_clone(ek)) == NULL)
|
---|
721 | {
|
---|
722 | LogError("Unable to allocate endorsement key");
|
---|
723 | result = MU_FAILURE;
|
---|
724 | }
|
---|
725 | else if (srk != NULL && (http_info->srk = BUFFER_clone(srk)) == NULL)
|
---|
726 | {
|
---|
727 | LogError("Unable to allocate storage root key");
|
---|
728 | BUFFER_delete(http_info->ek);
|
---|
729 | http_info->ek = NULL;
|
---|
730 | result = MU_FAILURE;
|
---|
731 | }
|
---|
732 | else if (mallocAndStrcpy_s(&http_info->registration_id, registration_id) != 0)
|
---|
733 | {
|
---|
734 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_003: [ If any error is encountered prov_transport_http_create shall return NULL. ] */
|
---|
735 | LogError("failure constructing registration Id");
|
---|
736 | BUFFER_delete(http_info->ek);
|
---|
737 | http_info->ek = NULL;
|
---|
738 | BUFFER_delete(http_info->srk);
|
---|
739 | http_info->srk = NULL;
|
---|
740 | result = MU_FAILURE;
|
---|
741 | }
|
---|
742 | else if ((http_info->hsm_type == TRANSPORT_HSM_TYPE_SYMM_KEY) && (http_info->sas_token = reg_challenge_cb(NULL, 0, KEY_NAME_VALUE, challenge_ctx)) == NULL)
|
---|
743 | {
|
---|
744 | LogError("failure constructing challenge value");
|
---|
745 | BUFFER_delete(http_info->ek);
|
---|
746 | http_info->ek = NULL;
|
---|
747 | BUFFER_delete(http_info->srk);
|
---|
748 | http_info->srk = NULL;
|
---|
749 | result = MU_FAILURE;
|
---|
750 | }
|
---|
751 | else
|
---|
752 | {
|
---|
753 | http_info->register_data_cb = data_callback;
|
---|
754 | http_info->user_ctx = user_ctx;
|
---|
755 | http_info->status_cb = status_cb;
|
---|
756 | http_info->status_ctx = status_ctx;
|
---|
757 | http_info->challenge_cb = reg_challenge_cb;
|
---|
758 | http_info->challenge_ctx = challenge_ctx;
|
---|
759 |
|
---|
760 | if (create_connection(http_info) != 0)
|
---|
761 | {
|
---|
762 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_013: [ If an error is encountered prov_transport_http_open shall return a non-zero value. ] */
|
---|
763 | LogError("Failure creating http connection");
|
---|
764 | if (http_info->ek != NULL)
|
---|
765 | {
|
---|
766 | BUFFER_delete(http_info->ek);
|
---|
767 | http_info->ek = NULL;
|
---|
768 | }
|
---|
769 | if (http_info->srk != NULL)
|
---|
770 | {
|
---|
771 | BUFFER_delete(http_info->srk);
|
---|
772 | http_info->srk = NULL;
|
---|
773 | }
|
---|
774 | http_info->register_data_cb = NULL;
|
---|
775 | http_info->user_ctx = NULL;
|
---|
776 | http_info->status_cb = NULL;
|
---|
777 | http_info->status_ctx = NULL;
|
---|
778 | free(http_info->registration_id);
|
---|
779 | http_info->registration_id = NULL;
|
---|
780 | result = MU_FAILURE;
|
---|
781 | }
|
---|
782 | else
|
---|
783 | {
|
---|
784 | result = 0;
|
---|
785 | }
|
---|
786 | }
|
---|
787 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_012: [ If successful prov_transport_http_open shall return 0. ] */
|
---|
788 | return result;
|
---|
789 | }
|
---|
790 |
|
---|
791 | int prov_transport_http_close(PROV_DEVICE_TRANSPORT_HANDLE handle)
|
---|
792 | {
|
---|
793 | int result;
|
---|
794 | if (handle == NULL)
|
---|
795 | {
|
---|
796 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_014: [ If the argument handle is NULL, prov_transport_http_close shall return a non-zero value. ] */
|
---|
797 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
798 | result = MU_FAILURE;
|
---|
799 | }
|
---|
800 | else
|
---|
801 | {
|
---|
802 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_015: [ prov_transport_http_close shall attempt to close the http communication with the service. ] */
|
---|
803 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
804 | if (http_info->http_client != NULL)
|
---|
805 | {
|
---|
806 | BUFFER_delete(http_info->ek);
|
---|
807 | http_info->ek = NULL;
|
---|
808 | BUFFER_delete(http_info->srk);
|
---|
809 | http_info->srk = NULL;
|
---|
810 | free(http_info->registration_id);
|
---|
811 | http_info->registration_id = NULL;
|
---|
812 |
|
---|
813 | uhttp_client_close(http_info->http_client, NULL, NULL);
|
---|
814 | uhttp_client_dowork(http_info->http_client);
|
---|
815 |
|
---|
816 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_006: [ prov_transport_http_close shall call the uhttp_client_destroy function function associated with the http_client ] */
|
---|
817 | uhttp_client_destroy(http_info->http_client);
|
---|
818 | http_info->http_client = NULL;
|
---|
819 | }
|
---|
820 | http_info->http_connected = false;
|
---|
821 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_016: [ On success prov_transport_http_close shall return 0. ] */
|
---|
822 | result = 0;
|
---|
823 | }
|
---|
824 | return result;
|
---|
825 | }
|
---|
826 |
|
---|
827 | int prov_transport_http_register_device(PROV_DEVICE_TRANSPORT_HANDLE handle, PROV_TRANSPORT_JSON_PARSE json_parse_cb, PROV_TRANSPORT_CREATE_JSON_PAYLOAD json_create_cb, void* json_ctx)
|
---|
828 | {
|
---|
829 | int result;
|
---|
830 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
831 | if (http_info == NULL || json_parse_cb == NULL || json_create_cb == NULL)
|
---|
832 | {
|
---|
833 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_017: [ If the argument handle or json_data is NULL, prov_transport_http_register_device shall return a non-zero value. ] */
|
---|
834 | LogError("Invalid parameter specified handle: %p, json_parse_cb: %p", handle, json_parse_cb);
|
---|
835 | result = MU_FAILURE;
|
---|
836 | }
|
---|
837 | else if (http_info->transport_state == TRANSPORT_CLIENT_STATE_ERROR)
|
---|
838 | {
|
---|
839 | LogError("Provisioning is in an error state, close the connection and try again.");
|
---|
840 | result = MU_FAILURE;
|
---|
841 | }
|
---|
842 | else
|
---|
843 | {
|
---|
844 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_022: [ On success prov_transport_http_register_device shall return 0. ] */
|
---|
845 | http_info->transport_state = TRANSPORT_CLIENT_STATE_REG_SEND;
|
---|
846 | http_info->json_parse_cb = json_parse_cb;
|
---|
847 | http_info->json_create_cb = json_create_cb;
|
---|
848 | http_info->json_ctx = json_ctx;
|
---|
849 |
|
---|
850 | result = 0;
|
---|
851 | }
|
---|
852 | return result;
|
---|
853 | }
|
---|
854 |
|
---|
855 | int prov_transport_http_get_operation_status(PROV_DEVICE_TRANSPORT_HANDLE handle)
|
---|
856 | {
|
---|
857 | int result;
|
---|
858 | if (handle == NULL)
|
---|
859 | {
|
---|
860 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_029: [ If the argument handle, or operation_id is NULL, prov_transport_http_get_operation_status shall return a non-zero value. ] */
|
---|
861 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
862 | result = MU_FAILURE;
|
---|
863 | }
|
---|
864 | else
|
---|
865 | {
|
---|
866 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
867 | HTTP_HEADERS_HANDLE http_headers;
|
---|
868 | char* uri_path;
|
---|
869 |
|
---|
870 | if (http_info->operation_id == NULL)
|
---|
871 | {
|
---|
872 | LogError("operation_id was not previously set in the challenge method");
|
---|
873 | result = MU_FAILURE;
|
---|
874 | }
|
---|
875 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_030: [ prov_transport_http_get_operation_status shall construct the http headers with SAS_TOKEN as Authorization header. ] */
|
---|
876 | else if ((http_headers = construct_http_headers(http_info->sas_token)) == NULL)
|
---|
877 | {
|
---|
878 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_033: [ If any error is encountered prov_transport_http_get_operation_status shall return a non-zero value. ] */
|
---|
879 | LogError("failure constructing http headers");
|
---|
880 | result = MU_FAILURE;
|
---|
881 | }
|
---|
882 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_031: [ prov_transport_http_get_operation_status shall construct the path to the service in the following format: /<scope_id>/registrations/<url_encoded_registration_id>/operations<url_encoded_operation_id>?api-version=<api_version> ] */
|
---|
883 | else if ((uri_path = construct_url_path(http_info)) == NULL)
|
---|
884 | {
|
---|
885 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_033: [ If any error is encountered prov_transport_http_get_operation_status shall return a non-zero value. ] */
|
---|
886 | LogError("Failure constructing uri path");
|
---|
887 | result = MU_FAILURE;
|
---|
888 | }
|
---|
889 | else
|
---|
890 | {
|
---|
891 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_032: [ prov_transport_http_get_operation_status shall send the request using the http client. ] */
|
---|
892 | if (uhttp_client_execute_request(http_info->http_client, HTTP_CLIENT_REQUEST_GET, uri_path, http_headers, NULL, 0, on_http_reply_recv, http_info) != HTTP_CLIENT_OK)
|
---|
893 | {
|
---|
894 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_033: [ If any error is encountered prov_transport_http_get_operation_status shall return a non-zero value. ] */
|
---|
895 | LogError("Failure sending data to server");
|
---|
896 | result = MU_FAILURE;
|
---|
897 | }
|
---|
898 | else
|
---|
899 | {
|
---|
900 | http_info->transport_state = TRANSPORT_CLIENT_STATE_STATUS_SENT;
|
---|
901 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_034: [ On success prov_transport_http_get_operation_status shall return 0. ] */
|
---|
902 | result = 0;
|
---|
903 | }
|
---|
904 | HTTPHeaders_Free(http_headers);
|
---|
905 | free(uri_path);
|
---|
906 | }
|
---|
907 | }
|
---|
908 | return result;
|
---|
909 | }
|
---|
910 |
|
---|
911 | void prov_transport_http_dowork(PROV_DEVICE_TRANSPORT_HANDLE handle)
|
---|
912 | {
|
---|
913 | if (handle != NULL)
|
---|
914 | {
|
---|
915 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
916 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_036: [ prov_transport_http_dowork shall call the underlying http client do work method. ] */
|
---|
917 | uhttp_client_dowork(http_info->http_client);
|
---|
918 |
|
---|
919 | if (http_info->http_connected || http_info->transport_state == TRANSPORT_CLIENT_STATE_ERROR)
|
---|
920 | {
|
---|
921 | switch (http_info->transport_state)
|
---|
922 | {
|
---|
923 | case TRANSPORT_CLIENT_STATE_REG_SEND:
|
---|
924 | if (send_registration_info(http_info) != 0)
|
---|
925 | {
|
---|
926 | LogError("NULL sas_token provided in challenge callback.");
|
---|
927 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
928 | }
|
---|
929 | else
|
---|
930 | {
|
---|
931 | http_info->transport_state = TRANSPORT_CLIENT_STATE_REG_SENT;
|
---|
932 | }
|
---|
933 | break;
|
---|
934 | case TRANSPORT_CLIENT_STATE_STATUS_RECV:
|
---|
935 | case TRANSPORT_CLIENT_STATE_REG_RECV:
|
---|
936 | {
|
---|
937 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_037: [ If the prov_transport_http_dowork state is Message received prov_transport_http_dowork shall call the calling process registration_data callback ] */
|
---|
938 | PROV_JSON_INFO* parse_info = http_info->json_parse_cb(http_info->payload_data, http_info->json_ctx);
|
---|
939 | if (parse_info == NULL)
|
---|
940 | {
|
---|
941 | LogError("Unable to process registration reply.");
|
---|
942 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
943 | }
|
---|
944 | else
|
---|
945 | {
|
---|
946 | switch (parse_info->prov_status)
|
---|
947 | {
|
---|
948 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNED:
|
---|
949 | http_info->register_data_cb(PROV_DEVICE_TRANSPORT_RESULT_OK, parse_info->authorization_key, parse_info->iothub_uri, parse_info->device_id, http_info->user_ctx);
|
---|
950 | http_info->transport_state = TRANSPORT_CLIENT_STATE_IDLE;
|
---|
951 | break;
|
---|
952 |
|
---|
953 | case PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED:
|
---|
954 | {
|
---|
955 | const unsigned char* nonce = BUFFER_u_char(parse_info->authorization_key);
|
---|
956 | size_t nonce_len = BUFFER_length(parse_info->authorization_key);
|
---|
957 |
|
---|
958 | http_info->sas_token = http_info->challenge_cb(nonce, nonce_len, parse_info->key_name, http_info->user_ctx);
|
---|
959 | if (http_info->sas_token == NULL)
|
---|
960 | {
|
---|
961 | LogError("NULL sas_token provided in challenge callback.");
|
---|
962 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
963 | }
|
---|
964 | else
|
---|
965 | {
|
---|
966 | send_challenge_response(http_info);
|
---|
967 | http_info->transport_state = TRANSPORT_CLIENT_STATE_REG_SENT;
|
---|
968 | }
|
---|
969 | break;
|
---|
970 | }
|
---|
971 |
|
---|
972 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING:
|
---|
973 | if (parse_info->operation_id == NULL)
|
---|
974 | {
|
---|
975 | LogError("Failure operation Id invalid");
|
---|
976 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
977 | }
|
---|
978 | else if (http_info->operation_id == NULL && mallocAndStrcpy_s(&http_info->operation_id, parse_info->operation_id) != 0)
|
---|
979 | {
|
---|
980 | LogError("Failure copying operation Id");
|
---|
981 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
982 | }
|
---|
983 | else
|
---|
984 | {
|
---|
985 | if (http_info->status_cb != NULL)
|
---|
986 | {
|
---|
987 | http_info->status_cb(parse_info->prov_status, http_info->retry_after_value, http_info->status_ctx);
|
---|
988 | }
|
---|
989 | http_info->transport_state = TRANSPORT_CLIENT_STATE_IDLE;
|
---|
990 | }
|
---|
991 | break;
|
---|
992 |
|
---|
993 | default:
|
---|
994 | case PROV_DEVICE_TRANSPORT_STATUS_ERROR:
|
---|
995 | LogError("Unable to process status reply");
|
---|
996 | http_info->transport_state = TRANSPORT_CLIENT_STATE_ERROR;
|
---|
997 | break;
|
---|
998 | }
|
---|
999 | free_json_parse_info(parse_info);
|
---|
1000 | }
|
---|
1001 | break;
|
---|
1002 | }
|
---|
1003 |
|
---|
1004 | case TRANSPORT_CLIENT_STATE_TRANSIENT:
|
---|
1005 | if (http_info->status_cb != NULL)
|
---|
1006 | {
|
---|
1007 | http_info->status_cb(PROV_DEVICE_TRANSPORT_STATUS_TRANSIENT, http_info->retry_after_value, http_info->status_ctx);
|
---|
1008 | }
|
---|
1009 | http_info->transport_state = TRANSPORT_CLIENT_STATE_IDLE;
|
---|
1010 | break;
|
---|
1011 |
|
---|
1012 | case TRANSPORT_CLIENT_STATE_ERROR:
|
---|
1013 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_039: [ If the state is Error, prov_transport_http_dowork shall call the registration_data callback with PROV_DEVICE_TRANSPORT_RESULT_ERROR and NULL payload_data. ] */
|
---|
1014 | http_info->register_data_cb(PROV_DEVICE_TRANSPORT_RESULT_ERROR, NULL, NULL, NULL, http_info->user_ctx);
|
---|
1015 | http_info->transport_state = TRANSPORT_CLIENT_STATE_IDLE;
|
---|
1016 | break;
|
---|
1017 |
|
---|
1018 | case TRANSPORT_CLIENT_STATE_REG_SENT:
|
---|
1019 | case TRANSPORT_CLIENT_STATE_STATUS_SENT:
|
---|
1020 | case TRANSPORT_CLIENT_STATE_IDLE:
|
---|
1021 | default:
|
---|
1022 | break;
|
---|
1023 | }
|
---|
1024 | }
|
---|
1025 | }
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 | int prov_transport_http_set_trace(PROV_DEVICE_TRANSPORT_HANDLE handle, bool trace_on)
|
---|
1029 | {
|
---|
1030 | int result;
|
---|
1031 | if (handle == NULL)
|
---|
1032 | {
|
---|
1033 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_040: [ If the argument handle, is NULL, prov_transport_http_set_trace shall return a non-zero value. ] */
|
---|
1034 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
1035 | result = MU_FAILURE;
|
---|
1036 | }
|
---|
1037 | else
|
---|
1038 | {
|
---|
1039 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
1040 | if (http_info->hsm_type == TRANSPORT_HSM_TYPE_X509)
|
---|
1041 | {
|
---|
1042 | http_info->log_trace = trace_on;
|
---|
1043 | if (http_info->http_client != NULL)
|
---|
1044 | {
|
---|
1045 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_041: [ If the http client is not NULL, prov_transport_http_set_trace shall set the http client log trace function with the specified trace_on flag. ] */
|
---|
1046 | (void)uhttp_client_set_trace(http_info->http_client, http_info->log_trace, http_info->log_trace);
|
---|
1047 | }
|
---|
1048 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_042: [ On success prov_transport_http_set_trace shall return zero. ] */
|
---|
1049 | result = 0;
|
---|
1050 | }
|
---|
1051 | else
|
---|
1052 | {
|
---|
1053 | LogError("Unable to enable logging when not using x509 certificates");
|
---|
1054 | result = MU_FAILURE;
|
---|
1055 | }
|
---|
1056 | }
|
---|
1057 | return result;
|
---|
1058 | }
|
---|
1059 |
|
---|
1060 | static int prov_transport_http_x509_cert(PROV_DEVICE_TRANSPORT_HANDLE handle, const char* certificate, const char* private_key)
|
---|
1061 | {
|
---|
1062 | int result;
|
---|
1063 | if (handle == NULL || certificate == NULL || private_key == NULL)
|
---|
1064 | {
|
---|
1065 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_043: [ If the argument handle, private_key or certificate is NULL, prov_transport_http_x509_cert shall return a non-zero value. ] */
|
---|
1066 | LogError("Invalid parameter specified handle: %p, certificate: %p, private_key: %p", handle, certificate, private_key);
|
---|
1067 | result = MU_FAILURE;
|
---|
1068 | }
|
---|
1069 | else
|
---|
1070 | {
|
---|
1071 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
1072 | if (http_info->x509_cert != NULL)
|
---|
1073 | {
|
---|
1074 | free(http_info->x509_cert);
|
---|
1075 | }
|
---|
1076 | if (http_info->private_key != NULL)
|
---|
1077 | {
|
---|
1078 | free(http_info->private_key);
|
---|
1079 | }
|
---|
1080 |
|
---|
1081 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_045: [ prov_transport_http_x509_cert shall store the certificate and private_key for use when the http client connects. ] */
|
---|
1082 | if (mallocAndStrcpy_s(&http_info->x509_cert, certificate) != 0)
|
---|
1083 | {
|
---|
1084 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_044: [ If any error is encountered prov_transport_http_x509_cert shall return a non-zero value. ] */
|
---|
1085 | result = MU_FAILURE;
|
---|
1086 | LogError("failure allocating certificate");
|
---|
1087 | }
|
---|
1088 | else if (mallocAndStrcpy_s(&http_info->private_key, private_key) != 0)
|
---|
1089 | {
|
---|
1090 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_044: [ If any error is encountered prov_transport_http_x509_cert shall return a non-zero value. ] */
|
---|
1091 | free(http_info->x509_cert);
|
---|
1092 | http_info->x509_cert = NULL;
|
---|
1093 | result = MU_FAILURE;
|
---|
1094 | LogError("failure allocating certificate");
|
---|
1095 | }
|
---|
1096 | else
|
---|
1097 | {
|
---|
1098 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_046: [ On success prov_transport_http_set_trace shall return zero. ] */
|
---|
1099 | result = 0;
|
---|
1100 | }
|
---|
1101 | }
|
---|
1102 | return result;
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 | static int prov_transport_http_set_trusted_cert(PROV_DEVICE_TRANSPORT_HANDLE handle, const char* certificate)
|
---|
1106 | {
|
---|
1107 | int result;
|
---|
1108 | if (handle == NULL || certificate == NULL)
|
---|
1109 | {
|
---|
1110 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_047: [ If the argument handle, certificate is NULL, prov_transport_http_set_trusted_cert shall return a non-zero value. ] */
|
---|
1111 | LogError("Invalid parameter specified handle: %p, certificate: %p", handle, certificate);
|
---|
1112 | result = MU_FAILURE;
|
---|
1113 | }
|
---|
1114 | else
|
---|
1115 | {
|
---|
1116 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
1117 | if (http_info->certificate != NULL)
|
---|
1118 | {
|
---|
1119 | free(http_info->certificate);
|
---|
1120 | }
|
---|
1121 |
|
---|
1122 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_049: [ prov_transport_http_set_trusted_cert shall store the certificate for use when the http client connects. ] */
|
---|
1123 | if (mallocAndStrcpy_s(&http_info->certificate, certificate) != 0)
|
---|
1124 | {
|
---|
1125 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_048: [ If any error is encountered prov_transport_http_set_trusted_cert shall return a non-zero value. ] */
|
---|
1126 | result = MU_FAILURE;
|
---|
1127 | LogError("failure allocating certificate");
|
---|
1128 | }
|
---|
1129 | else
|
---|
1130 | {
|
---|
1131 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_050: [ On success prov_transport_http_set_trusted_cert shall return zero. ] */
|
---|
1132 | result = 0;
|
---|
1133 | }
|
---|
1134 | }
|
---|
1135 | return result;
|
---|
1136 | }
|
---|
1137 |
|
---|
1138 | static int prov_transport_http_set_proxy(PROV_DEVICE_TRANSPORT_HANDLE handle, const HTTP_PROXY_OPTIONS* proxy_options)
|
---|
1139 | {
|
---|
1140 | int result;
|
---|
1141 | if (handle == NULL || proxy_options == NULL)
|
---|
1142 | {
|
---|
1143 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_051: [ If the argument handle or proxy_options is NULL, prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1144 | LogError("Invalid parameter specified handle: %p, proxy_options: %p", handle, proxy_options);
|
---|
1145 | result = MU_FAILURE;
|
---|
1146 | }
|
---|
1147 | else
|
---|
1148 | {
|
---|
1149 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
1150 | if (proxy_options->host_address == NULL)
|
---|
1151 | {
|
---|
1152 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_055: [ If proxy_options host_name is NULL prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1153 | LogError("NULL host_address in proxy options");
|
---|
1154 | result = MU_FAILURE;
|
---|
1155 | }
|
---|
1156 | else if (((proxy_options->username == NULL) || (proxy_options->password == NULL)) &&
|
---|
1157 | (proxy_options->username != proxy_options->password))
|
---|
1158 | {
|
---|
1159 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_053: [ If proxy_options username is NULL and proxy_options::password is not NULL prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1160 | LogError("Only one of username and password for proxy settings was NULL");
|
---|
1161 | result = MU_FAILURE;
|
---|
1162 | }
|
---|
1163 | else
|
---|
1164 | {
|
---|
1165 | if (http_info->proxy_host != NULL)
|
---|
1166 | {
|
---|
1167 | free(http_info->proxy_host);
|
---|
1168 | }
|
---|
1169 | if (http_info->username != NULL)
|
---|
1170 | {
|
---|
1171 | free(http_info->username);
|
---|
1172 | http_info->username = NULL;
|
---|
1173 | }
|
---|
1174 | if (http_info->password != NULL)
|
---|
1175 | {
|
---|
1176 | free(http_info->password);
|
---|
1177 | http_info->password = NULL;
|
---|
1178 | }
|
---|
1179 |
|
---|
1180 | http_info->proxy_port = proxy_options->port;
|
---|
1181 | if (mallocAndStrcpy_s(&http_info->proxy_host, proxy_options->host_address) != 0)
|
---|
1182 | {
|
---|
1183 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_052: [ If any error is encountered prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1184 | LogError("Failure setting proxy_host name");
|
---|
1185 | result = MU_FAILURE;
|
---|
1186 | }
|
---|
1187 | else if (proxy_options->username != NULL && mallocAndStrcpy_s(&http_info->username, proxy_options->username) != 0)
|
---|
1188 | {
|
---|
1189 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_052: [ If any error is encountered prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1190 | free(http_info->proxy_host);
|
---|
1191 | http_info->proxy_host = NULL;
|
---|
1192 | LogError("Failure setting proxy username");
|
---|
1193 | result = MU_FAILURE;
|
---|
1194 | }
|
---|
1195 | else if (proxy_options->password != NULL && mallocAndStrcpy_s(&http_info->password, proxy_options->password) != 0)
|
---|
1196 | {
|
---|
1197 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_052: [ If any error is encountered prov_transport_http_set_proxy shall return a non-zero value. ] */
|
---|
1198 | LogError("Failure setting proxy password");
|
---|
1199 | free(http_info->proxy_host);
|
---|
1200 | http_info->proxy_host = NULL;
|
---|
1201 | free(http_info->username);
|
---|
1202 | http_info->username = NULL;
|
---|
1203 | result = MU_FAILURE;
|
---|
1204 | }
|
---|
1205 | else
|
---|
1206 | {
|
---|
1207 | /* Codes_PROV_TRANSPORT_HTTP_CLIENT_07_054: [ On success prov_transport_http_set_proxy shall return zero. ] */
|
---|
1208 | result = 0;
|
---|
1209 | }
|
---|
1210 | }
|
---|
1211 | }
|
---|
1212 | return result;
|
---|
1213 | }
|
---|
1214 |
|
---|
1215 | static int prov_transport_http_set_option(PROV_DEVICE_TRANSPORT_HANDLE handle, const char* option, const void* value)
|
---|
1216 | {
|
---|
1217 | int result;
|
---|
1218 | // needs to invoke correct behavior
|
---|
1219 | if (handle == NULL || option == NULL)
|
---|
1220 | {
|
---|
1221 | LogError("Invalid parameter specified handle: %p, option: %p", handle, option);
|
---|
1222 | result = MU_FAILURE;
|
---|
1223 | }
|
---|
1224 | else
|
---|
1225 | {
|
---|
1226 | PROV_TRANSPORT_HTTP_INFO* http_info = (PROV_TRANSPORT_HTTP_INFO*)handle;
|
---|
1227 | if (http_info->http_client == NULL && create_transport_io_object(http_info) != 0)
|
---|
1228 | {
|
---|
1229 | LogError("Failure creating transport io object");
|
---|
1230 | result = MU_FAILURE;
|
---|
1231 | }
|
---|
1232 | else
|
---|
1233 | {
|
---|
1234 | result = uhttp_client_set_option(http_info->http_client, option, value);
|
---|
1235 | }
|
---|
1236 | }
|
---|
1237 | return result;
|
---|
1238 | }
|
---|
1239 |
|
---|
1240 | static PROV_DEVICE_TRANSPORT_PROVIDER prov_http_func =
|
---|
1241 | {
|
---|
1242 | prov_transport_http_create,
|
---|
1243 | prov_transport_http_destroy,
|
---|
1244 | prov_transport_http_open,
|
---|
1245 | prov_transport_http_close,
|
---|
1246 | prov_transport_http_register_device,
|
---|
1247 | prov_transport_http_get_operation_status,
|
---|
1248 | prov_transport_http_dowork,
|
---|
1249 | prov_transport_http_set_trace,
|
---|
1250 | prov_transport_http_x509_cert,
|
---|
1251 | prov_transport_http_set_trusted_cert,
|
---|
1252 | prov_transport_http_set_proxy,
|
---|
1253 | prov_transport_http_set_option
|
---|
1254 | };
|
---|
1255 |
|
---|
1256 | const PROV_DEVICE_TRANSPORT_PROVIDER* Prov_Device_HTTP_Protocol(void)
|
---|
1257 | {
|
---|
1258 | return &prov_http_func;
|
---|
1259 | }
|
---|