Okundu Omeni / Mbed OS wifi-https-ble-sm-uart-atcmd-5-13-1

this is using the mbed os version 5-13-1

Dependencies:   mbed-http

source/main-https-chunked-request.cpp@73:6f5021cbe752, 2019-02-28 (annotated)

Committer:
ocomeni
Date:
Thu Feb 28 18:13:48 2019 +0000
Revision:
73:6f5021cbe752
commit current application code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ocomeni 73:6f5021cbe752 1 /**
ocomeni 73:6f5021cbe752 2 * This is an example of doing chunked requests, where you do not need to load the full request body
ocomeni 73:6f5021cbe752 3 * into memory. You do this by adding a callback to the `send` function of the HTTP/HTTPS request.
ocomeni 73:6f5021cbe752 4 */
ocomeni 73:6f5021cbe752 5
ocomeni 73:6f5021cbe752 6 #include "select-demo.h"
ocomeni 73:6f5021cbe752 7
ocomeni 73:6f5021cbe752 8 #if DEMO == DEMO_HTTPS_CHUNKED_REQUEST
ocomeni 73:6f5021cbe752 9
ocomeni 73:6f5021cbe752 10 #include "mbed.h"
ocomeni 73:6f5021cbe752 11 #include "mbed_trace.h"
ocomeni 73:6f5021cbe752 12 #include "https_request.h"
ocomeni 73:6f5021cbe752 13 #include "network-helper.h"
ocomeni 73:6f5021cbe752 14
ocomeni 73:6f5021cbe752 15 /* List of trusted root CA certificates
ocomeni 73:6f5021cbe752 16 * currently one: Comodo, the CA for reqres.in
ocomeni 73:6f5021cbe752 17 *
ocomeni 73:6f5021cbe752 18 * To add more root certificates, just concatenate them.
ocomeni 73:6f5021cbe752 19 */
ocomeni 73:6f5021cbe752 20 const char SSL_CA_PEM[] = "-----BEGIN CERTIFICATE-----\n"
ocomeni 73:6f5021cbe752 21 "MIICiTCCAg+gAwIBAgIQH0evqmIAcFBUTAGem2OZKjAKBggqhkjOPQQDAzCBhTEL\n"
ocomeni 73:6f5021cbe752 22 "MAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UE\n"
ocomeni 73:6f5021cbe752 23 "BxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxKzApBgNVBAMT\n"
ocomeni 73:6f5021cbe752 24 "IkNPTU9ETyBFQ0MgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDgwMzA2MDAw\n"
ocomeni 73:6f5021cbe752 25 "MDAwWhcNMzgwMTE4MjM1OTU5WjCBhTELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdy\n"
ocomeni 73:6f5021cbe752 26 "ZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09N\n"
ocomeni 73:6f5021cbe752 27 "T0RPIENBIExpbWl0ZWQxKzApBgNVBAMTIkNPTU9ETyBFQ0MgQ2VydGlmaWNhdGlv\n"
ocomeni 73:6f5021cbe752 28 "biBBdXRob3JpdHkwdjAQBgcqhkjOPQIBBgUrgQQAIgNiAAQDR3svdcmCFYX7deSR\n"
ocomeni 73:6f5021cbe752 29 "FtSrYpn1PlILBs5BAH+X4QokPB0BBO490o0JlwzgdeT6+3eKKvUDYEs2ixYjFq0J\n"
ocomeni 73:6f5021cbe752 30 "cfRK9ChQtP6IHG4/bC8vCVlbpVsLM5niwz2J+Wos77LTBumjQjBAMB0GA1UdDgQW\n"
ocomeni 73:6f5021cbe752 31 "BBR1cacZSBm8nZ3qQUfflMRId5nTeTAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/\n"
ocomeni 73:6f5021cbe752 32 "BAUwAwEB/zAKBggqhkjOPQQDAwNoADBlAjEA7wNbeqy3eApyt4jf/7VGFAkK+qDm\n"
ocomeni 73:6f5021cbe752 33 "fQjGGoe9GKhzvSbKYAydzpmfz1wPMOG+FDHqAjAU9JM8SaczepBGR7NjfRObTrdv\n"
ocomeni 73:6f5021cbe752 34 "GDeAU/7dIOA1mjbRxwG55tzd8/8dLDoWV9mSOdY=\n"
ocomeni 73:6f5021cbe752 35 "-----END CERTIFICATE-----\n";
ocomeni 73:6f5021cbe752 36
ocomeni 73:6f5021cbe752 37 void dump_response(HttpResponse* res) {
ocomeni 73:6f5021cbe752 38 printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
ocomeni 73:6f5021cbe752 39
ocomeni 73:6f5021cbe752 40 printf("Headers:\n");
ocomeni 73:6f5021cbe752 41 for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
ocomeni 73:6f5021cbe752 42 printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
ocomeni 73:6f5021cbe752 43 }
ocomeni 73:6f5021cbe752 44 printf("\nBody (%lu bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
ocomeni 73:6f5021cbe752 45 }
ocomeni 73:6f5021cbe752 46
ocomeni 73:6f5021cbe752 47 // Spread the message out over 3 different chunks
ocomeni 73:6f5021cbe752 48 const char * chunks[] = {
ocomeni 73:6f5021cbe752 49 "{\"message\":",
ocomeni 73:6f5021cbe752 50 "\"this is an example",
ocomeni 73:6f5021cbe752 51 " of chunked encoding\"}"
ocomeni 73:6f5021cbe752 52 };
ocomeni 73:6f5021cbe752 53
ocomeni 73:6f5021cbe752 54 int chunk_ix = 0;
ocomeni 73:6f5021cbe752 55
ocomeni 73:6f5021cbe752 56 // Callback function, grab the next chunk and return it
ocomeni 73:6f5021cbe752 57 const void * get_chunk(uint32_t* out_size) {
ocomeni 73:6f5021cbe752 58 // If you don't have any data left, set out_size to 0 and return a null pointer
ocomeni 73:6f5021cbe752 59 if (chunk_ix == (sizeof(chunks) / sizeof(chunks[0]))) {
ocomeni 73:6f5021cbe752 60 *out_size = 0;
ocomeni 73:6f5021cbe752 61 return NULL;
ocomeni 73:6f5021cbe752 62 }
ocomeni 73:6f5021cbe752 63 const char *chunk = chunks[chunk_ix];
ocomeni 73:6f5021cbe752 64 *out_size = strlen(chunk);
ocomeni 73:6f5021cbe752 65 chunk_ix++;
ocomeni 73:6f5021cbe752 66
ocomeni 73:6f5021cbe752 67 return chunk;
ocomeni 73:6f5021cbe752 68 }
ocomeni 73:6f5021cbe752 69
ocomeni 73:6f5021cbe752 70 int main() {
ocomeni 73:6f5021cbe752 71 NetworkInterface* network = connect_to_default_network_interface();
ocomeni 73:6f5021cbe752 72 if (!network) {
ocomeni 73:6f5021cbe752 73 printf("Cannot connect to the network, see serial output\n");
ocomeni 73:6f5021cbe752 74 return 1;
ocomeni 73:6f5021cbe752 75 }
ocomeni 73:6f5021cbe752 76
ocomeni 73:6f5021cbe752 77 mbed_trace_init();
ocomeni 73:6f5021cbe752 78
ocomeni 73:6f5021cbe752 79 // This example also logs the raw request, you can do this by calling 'set_request_log_buffer' on the request
ocomeni 73:6f5021cbe752 80 uint8_t *request_buffer = (uint8_t*)calloc(2048, 1);
ocomeni 73:6f5021cbe752 81
ocomeni 73:6f5021cbe752 82 // POST request to reqres.in
ocomeni 73:6f5021cbe752 83 {
ocomeni 73:6f5021cbe752 84 HttpsRequest* post_req = new HttpsRequest(network, SSL_CA_PEM, HTTP_POST, "https://reqres.in/api/users");
ocomeni 73:6f5021cbe752 85 post_req->set_header("Content-Type", "application/json");
ocomeni 73:6f5021cbe752 86 post_req->set_request_log_buffer(request_buffer, 2048);
ocomeni 73:6f5021cbe752 87
ocomeni 73:6f5021cbe752 88 // If you pass a callback here, the Transfer-Encoding header is automatically set to chunked
ocomeni 73:6f5021cbe752 89 HttpResponse* post_res = post_req->send(&get_chunk);
ocomeni 73:6f5021cbe752 90 if (!post_res) {
ocomeni 73:6f5021cbe752 91 printf("HttpsRequest failed (error code %d)\n", post_req->get_error());
ocomeni 73:6f5021cbe752 92 return 1;
ocomeni 73:6f5021cbe752 93 }
ocomeni 73:6f5021cbe752 94
ocomeni 73:6f5021cbe752 95 // Log the raw request that went over the line (if you decode the hex you can see the chunked parts)
ocomeni 73:6f5021cbe752 96 // e.g. in Node.js (take the output from below):
ocomeni 73:6f5021cbe752 97 // '50 4f 53 54 20'.split(' ').map(c=>parseInt(c,16)).map(c=>String.fromCharCode(c)).join('')
ocomeni 73:6f5021cbe752 98 printf("\n----- Request buffer -----\n");
ocomeni 73:6f5021cbe752 99 for (size_t ix = 0; ix < post_req->get_request_log_buffer_length(); ix++) {
ocomeni 73:6f5021cbe752 100 printf("%02x ", request_buffer[ix]);
ocomeni 73:6f5021cbe752 101 }
ocomeni 73:6f5021cbe752 102 printf("\n");
ocomeni 73:6f5021cbe752 103
ocomeni 73:6f5021cbe752 104 printf("\n----- HTTPS POST response -----\n");
ocomeni 73:6f5021cbe752 105 dump_response(post_res);
ocomeni 73:6f5021cbe752 106
ocomeni 73:6f5021cbe752 107 delete post_req;
ocomeni 73:6f5021cbe752 108 }
ocomeni 73:6f5021cbe752 109
ocomeni 73:6f5021cbe752 110 wait(osWaitForever);
ocomeni 73:6f5021cbe752 111 }
ocomeni 73:6f5021cbe752 112
ocomeni 73:6f5021cbe752 113 #endif