ST / Mbed OS mbed-os-example-ble-EddystoneService

BLE EddystoneService example

This example is a fork of the following mbed-os example:

https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-ble-EddystoneService/

Please read the documentation in this page.

source/URLFrame.cpp@0:4c8f8bf32a99, 2016-07-26 (annotated)

Committer:
Vincent Coubard
Date:
Tue Jul 26 14:40:25 2016 +0100
Revision:
0:4c8f8bf32a99
Child:
1:9db4d46bb63f
Update example at tag mbed-os-5.0.1-rc1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Vincent Coubard 0:4c8f8bf32a99 1 /* mbed Microcontroller Library
Vincent Coubard 0:4c8f8bf32a99 2 * Copyright (c) 2006-2015 ARM Limited
Vincent Coubard 0:4c8f8bf32a99 3 *
Vincent Coubard 0:4c8f8bf32a99 4 * Licensed under the Apache License, Version 2.0 (the "License");
Vincent Coubard 0:4c8f8bf32a99 5 * you may not use this file except in compliance with the License.
Vincent Coubard 0:4c8f8bf32a99 6 * You may obtain a copy of the License at
Vincent Coubard 0:4c8f8bf32a99 7 *
Vincent Coubard 0:4c8f8bf32a99 8 * http://www.apache.org/licenses/LICENSE-2.0
Vincent Coubard 0:4c8f8bf32a99 9 *
Vincent Coubard 0:4c8f8bf32a99 10 * Unless required by applicable law or agreed to in writing, software
Vincent Coubard 0:4c8f8bf32a99 11 * distributed under the License is distributed on an "AS IS" BASIS,
Vincent Coubard 0:4c8f8bf32a99 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Vincent Coubard 0:4c8f8bf32a99 13 * See the License for the specific language governing permissions and
Vincent Coubard 0:4c8f8bf32a99 14 * limitations under the License.
Vincent Coubard 0:4c8f8bf32a99 15 */
Vincent Coubard 0:4c8f8bf32a99 16
Vincent Coubard 0:4c8f8bf32a99 17 #include "URLFrame.h"
Vincent Coubard 0:4c8f8bf32a99 18
Vincent Coubard 0:4c8f8bf32a99 19 URLFrame::URLFrame(void)
Vincent Coubard 0:4c8f8bf32a99 20 {
Vincent Coubard 0:4c8f8bf32a99 21 urlDataLength = 0;
Vincent Coubard 0:4c8f8bf32a99 22 memset(urlData, 0, sizeof(UrlData_t));
Vincent Coubard 0:4c8f8bf32a99 23 }
Vincent Coubard 0:4c8f8bf32a99 24
Vincent Coubard 0:4c8f8bf32a99 25 URLFrame::URLFrame(const char *urlDataIn)
Vincent Coubard 0:4c8f8bf32a99 26 {
Vincent Coubard 0:4c8f8bf32a99 27 encodeURL(urlDataIn);
Vincent Coubard 0:4c8f8bf32a99 28 }
Vincent Coubard 0:4c8f8bf32a99 29
Vincent Coubard 0:4c8f8bf32a99 30 URLFrame::URLFrame(UrlData_t urlDataIn, uint8_t urlDataLengthIn)
Vincent Coubard 0:4c8f8bf32a99 31 {
Vincent Coubard 0:4c8f8bf32a99 32 urlDataLength = (urlDataLengthIn > URL_DATA_MAX) ? URL_DATA_MAX : urlDataLengthIn;
Vincent Coubard 0:4c8f8bf32a99 33 memcpy(urlData, urlDataIn, urlDataLength);
Vincent Coubard 0:4c8f8bf32a99 34 }
Vincent Coubard 0:4c8f8bf32a99 35
Vincent Coubard 0:4c8f8bf32a99 36 void URLFrame::constructURLFrame(uint8_t* rawFrame, int8_t advPowerLevel)
Vincent Coubard 0:4c8f8bf32a99 37 {
Vincent Coubard 0:4c8f8bf32a99 38 size_t index = 0;
Vincent Coubard 0:4c8f8bf32a99 39 rawFrame[index++] = EDDYSTONE_UUID[0]; // 16-bit Eddystone UUID
Vincent Coubard 0:4c8f8bf32a99 40 rawFrame[index++] = EDDYSTONE_UUID[1];
Vincent Coubard 0:4c8f8bf32a99 41 rawFrame[index++] = FRAME_TYPE_URL; // 1B Type
Vincent Coubard 0:4c8f8bf32a99 42 rawFrame[index++] = advPowerLevel; // 1B Power @ 0meter
Vincent Coubard 0:4c8f8bf32a99 43 memcpy(rawFrame + index, urlData, urlDataLength); // Encoded URL
Vincent Coubard 0:4c8f8bf32a99 44 }
Vincent Coubard 0:4c8f8bf32a99 45
Vincent Coubard 0:4c8f8bf32a99 46 size_t URLFrame::getRawFrameSize(void) const
Vincent Coubard 0:4c8f8bf32a99 47 {
Vincent Coubard 0:4c8f8bf32a99 48 return urlDataLength + FRAME_MIN_SIZE_URL + EDDYSTONE_UUID_SIZE;
Vincent Coubard 0:4c8f8bf32a99 49 }
Vincent Coubard 0:4c8f8bf32a99 50
Vincent Coubard 0:4c8f8bf32a99 51 uint8_t* URLFrame::getEncodedURLData(void)
Vincent Coubard 0:4c8f8bf32a99 52 {
Vincent Coubard 0:4c8f8bf32a99 53 return urlData;
Vincent Coubard 0:4c8f8bf32a99 54 }
Vincent Coubard 0:4c8f8bf32a99 55
Vincent Coubard 0:4c8f8bf32a99 56 uint8_t URLFrame::getEncodedURLDataLength(void) const
Vincent Coubard 0:4c8f8bf32a99 57 {
Vincent Coubard 0:4c8f8bf32a99 58 return urlDataLength;
Vincent Coubard 0:4c8f8bf32a99 59 }
Vincent Coubard 0:4c8f8bf32a99 60
Vincent Coubard 0:4c8f8bf32a99 61 void URLFrame::setURLData(const char *urlDataIn)
Vincent Coubard 0:4c8f8bf32a99 62 {
Vincent Coubard 0:4c8f8bf32a99 63 encodeURL(urlDataIn);
Vincent Coubard 0:4c8f8bf32a99 64 }
Vincent Coubard 0:4c8f8bf32a99 65
Vincent Coubard 0:4c8f8bf32a99 66 void URLFrame::setEncodedURLData(const uint8_t* urlEncodedDataIn, const uint8_t urlEncodedDataLengthIn)
Vincent Coubard 0:4c8f8bf32a99 67 {
Vincent Coubard 0:4c8f8bf32a99 68 urlDataLength = urlEncodedDataLengthIn;
Vincent Coubard 0:4c8f8bf32a99 69 memcpy(urlData, urlEncodedDataIn, urlEncodedDataLengthIn);
Vincent Coubard 0:4c8f8bf32a99 70 }
Vincent Coubard 0:4c8f8bf32a99 71
Vincent Coubard 0:4c8f8bf32a99 72 void URLFrame::encodeURL(const char *urlDataIn)
Vincent Coubard 0:4c8f8bf32a99 73 {
Vincent Coubard 0:4c8f8bf32a99 74 const char *prefixes[] = {
Vincent Coubard 0:4c8f8bf32a99 75 "http://www.",
Vincent Coubard 0:4c8f8bf32a99 76 "https://www.",
Vincent Coubard 0:4c8f8bf32a99 77 "http://",
Vincent Coubard 0:4c8f8bf32a99 78 "https://",
Vincent Coubard 0:4c8f8bf32a99 79 };
Vincent Coubard 0:4c8f8bf32a99 80 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
Vincent Coubard 0:4c8f8bf32a99 81 const char *suffixes[] = {
Vincent Coubard 0:4c8f8bf32a99 82 ".com/",
Vincent Coubard 0:4c8f8bf32a99 83 ".org/",
Vincent Coubard 0:4c8f8bf32a99 84 ".edu/",
Vincent Coubard 0:4c8f8bf32a99 85 ".net/",
Vincent Coubard 0:4c8f8bf32a99 86 ".info/",
Vincent Coubard 0:4c8f8bf32a99 87 ".biz/",
Vincent Coubard 0:4c8f8bf32a99 88 ".gov/",
Vincent Coubard 0:4c8f8bf32a99 89 ".com",
Vincent Coubard 0:4c8f8bf32a99 90 ".org",
Vincent Coubard 0:4c8f8bf32a99 91 ".edu",
Vincent Coubard 0:4c8f8bf32a99 92 ".net",
Vincent Coubard 0:4c8f8bf32a99 93 ".info",
Vincent Coubard 0:4c8f8bf32a99 94 ".biz",
Vincent Coubard 0:4c8f8bf32a99 95 ".gov"
Vincent Coubard 0:4c8f8bf32a99 96 };
Vincent Coubard 0:4c8f8bf32a99 97 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
Vincent Coubard 0:4c8f8bf32a99 98
Vincent Coubard 0:4c8f8bf32a99 99 urlDataLength = 0;
Vincent Coubard 0:4c8f8bf32a99 100 memset(urlData, 0, sizeof(UrlData_t));
Vincent Coubard 0:4c8f8bf32a99 101
Vincent Coubard 0:4c8f8bf32a99 102 if ((urlDataIn == NULL) || (strlen(urlDataIn) == 0)) {
Vincent Coubard 0:4c8f8bf32a99 103 return;
Vincent Coubard 0:4c8f8bf32a99 104 }
Vincent Coubard 0:4c8f8bf32a99 105
Vincent Coubard 0:4c8f8bf32a99 106 /*
Vincent Coubard 0:4c8f8bf32a99 107 * handle prefix
Vincent Coubard 0:4c8f8bf32a99 108 */
Vincent Coubard 0:4c8f8bf32a99 109 for (size_t i = 0; i < NUM_PREFIXES; i++) {
Vincent Coubard 0:4c8f8bf32a99 110 size_t prefixLen = strlen(prefixes[i]);
Vincent Coubard 0:4c8f8bf32a99 111 if (strncmp(urlDataIn, prefixes[i], prefixLen) == 0) {
Vincent Coubard 0:4c8f8bf32a99 112 urlData[urlDataLength++] = i;
Vincent Coubard 0:4c8f8bf32a99 113 urlDataIn += prefixLen;
Vincent Coubard 0:4c8f8bf32a99 114 break;
Vincent Coubard 0:4c8f8bf32a99 115 }
Vincent Coubard 0:4c8f8bf32a99 116 }
Vincent Coubard 0:4c8f8bf32a99 117
Vincent Coubard 0:4c8f8bf32a99 118 /*
Vincent Coubard 0:4c8f8bf32a99 119 * handle suffixes
Vincent Coubard 0:4c8f8bf32a99 120 */
Vincent Coubard 0:4c8f8bf32a99 121 while (*urlDataIn && (urlDataLength < URL_DATA_MAX)) {
Vincent Coubard 0:4c8f8bf32a99 122 /* check for suffix match */
Vincent Coubard 0:4c8f8bf32a99 123 size_t i;
Vincent Coubard 0:4c8f8bf32a99 124 for (i = 0; i < NUM_SUFFIXES; i++) {
Vincent Coubard 0:4c8f8bf32a99 125 size_t suffixLen = strlen(suffixes[i]);
Vincent Coubard 0:4c8f8bf32a99 126 if (strncmp(urlDataIn, suffixes[i], suffixLen) == 0) {
Vincent Coubard 0:4c8f8bf32a99 127 urlData[urlDataLength++] = i;
Vincent Coubard 0:4c8f8bf32a99 128 urlDataIn += suffixLen;
Vincent Coubard 0:4c8f8bf32a99 129 break; /* from the for loop for checking against suffixes */
Vincent Coubard 0:4c8f8bf32a99 130 }
Vincent Coubard 0:4c8f8bf32a99 131 }
Vincent Coubard 0:4c8f8bf32a99 132 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
Vincent Coubard 0:4c8f8bf32a99 133 if (i == NUM_SUFFIXES) {
Vincent Coubard 0:4c8f8bf32a99 134 urlData[urlDataLength++] = *urlDataIn;
Vincent Coubard 0:4c8f8bf32a99 135 ++urlDataIn;
Vincent Coubard 0:4c8f8bf32a99 136 }
Vincent Coubard 0:4c8f8bf32a99 137 }
Vincent Coubard 0:4c8f8bf32a99 138 }