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@2:9ee673e0b86a, 2016-07-28 (annotated)

Committer:
Vincent Coubard
Date:
Thu Jul 28 23:27:37 2016 +0100
Revision:
2:9ee673e0b86a
Parent:
1:9db4d46bb63f
Child:
3:5120491ba317
Sync with mbed-os-5.1.0-rc3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Vincent Coubard 2:9ee673e0b86a 1 /* mbed Microcontroller Library
Vincent Coubard 2:9ee673e0b86a 2 * Copyright (c) 2006-2015 ARM Limited
Vincent Coubard 2:9ee673e0b86a 3 *
Vincent Coubard 2:9ee673e0b86a 4 * Licensed under the Apache License, Version 2.0 (the "License");
Vincent Coubard 2:9ee673e0b86a 5 * you may not use this file except in compliance with the License.
Vincent Coubard 2:9ee673e0b86a 6 * You may obtain a copy of the License at
Vincent Coubard 2:9ee673e0b86a 7 *
Vincent Coubard 2:9ee673e0b86a 8 * http://www.apache.org/licenses/LICENSE-2.0
Vincent Coubard 2:9ee673e0b86a 9 *
Vincent Coubard 2:9ee673e0b86a 10 * Unless required by applicable law or agreed to in writing, software
Vincent Coubard 2:9ee673e0b86a 11 * distributed under the License is distributed on an "AS IS" BASIS,
Vincent Coubard 2:9ee673e0b86a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Vincent Coubard 2:9ee673e0b86a 13 * See the License for the specific language governing permissions and
Vincent Coubard 2:9ee673e0b86a 14 * limitations under the License.
Vincent Coubard 2:9ee673e0b86a 15 */
Vincent Coubard 2:9ee673e0b86a 16
Vincent Coubard 2:9ee673e0b86a 17 #include "URLFrame.h"
Vincent Coubard 2:9ee673e0b86a 18
Vincent Coubard 2:9ee673e0b86a 19 URLFrame::URLFrame(void)
Vincent Coubard 2:9ee673e0b86a 20 {
Vincent Coubard 2:9ee673e0b86a 21 urlDataLength = 0;
Vincent Coubard 2:9ee673e0b86a 22 memset(urlData, 0, sizeof(UrlData_t));
Vincent Coubard 2:9ee673e0b86a 23 }
Vincent Coubard 2:9ee673e0b86a 24
Vincent Coubard 2:9ee673e0b86a 25 URLFrame::URLFrame(const char *urlDataIn)
Vincent Coubard 2:9ee673e0b86a 26 {
Vincent Coubard 2:9ee673e0b86a 27 encodeURL(urlDataIn);
Vincent Coubard 2:9ee673e0b86a 28 }
Vincent Coubard 2:9ee673e0b86a 29
Vincent Coubard 2:9ee673e0b86a 30 URLFrame::URLFrame(UrlData_t urlDataIn, uint8_t urlDataLengthIn)
Vincent Coubard 2:9ee673e0b86a 31 {
Vincent Coubard 2:9ee673e0b86a 32 urlDataLength = (urlDataLengthIn > URL_DATA_MAX) ? URL_DATA_MAX : urlDataLengthIn;
Vincent Coubard 2:9ee673e0b86a 33 memcpy(urlData, urlDataIn, urlDataLength);
Vincent Coubard 2:9ee673e0b86a 34 }
Vincent Coubard 2:9ee673e0b86a 35
Vincent Coubard 2:9ee673e0b86a 36 void URLFrame::constructURLFrame(uint8_t* rawFrame, int8_t advPowerLevel)
Vincent Coubard 2:9ee673e0b86a 37 {
Vincent Coubard 2:9ee673e0b86a 38 size_t index = 0;
Vincent Coubard 2:9ee673e0b86a 39 rawFrame[index++] = EDDYSTONE_UUID[0]; // 16-bit Eddystone UUID
Vincent Coubard 2:9ee673e0b86a 40 rawFrame[index++] = EDDYSTONE_UUID[1];
Vincent Coubard 2:9ee673e0b86a 41 rawFrame[index++] = FRAME_TYPE_URL; // 1B Type
Vincent Coubard 2:9ee673e0b86a 42 rawFrame[index++] = advPowerLevel; // 1B Power @ 0meter
Vincent Coubard 2:9ee673e0b86a 43 memcpy(rawFrame + index, urlData, urlDataLength); // Encoded URL
Vincent Coubard 2:9ee673e0b86a 44 }
Vincent Coubard 2:9ee673e0b86a 45
Vincent Coubard 2:9ee673e0b86a 46 size_t URLFrame::getRawFrameSize(void) const
Vincent Coubard 2:9ee673e0b86a 47 {
Vincent Coubard 2:9ee673e0b86a 48 return urlDataLength + FRAME_MIN_SIZE_URL + EDDYSTONE_UUID_SIZE;
Vincent Coubard 2:9ee673e0b86a 49 }
Vincent Coubard 2:9ee673e0b86a 50
Vincent Coubard 2:9ee673e0b86a 51 uint8_t* URLFrame::getEncodedURLData(void)
Vincent Coubard 2:9ee673e0b86a 52 {
Vincent Coubard 2:9ee673e0b86a 53 return urlData;
Vincent Coubard 2:9ee673e0b86a 54 }
Vincent Coubard 2:9ee673e0b86a 55
Vincent Coubard 2:9ee673e0b86a 56 uint8_t URLFrame::getEncodedURLDataLength(void) const
Vincent Coubard 2:9ee673e0b86a 57 {
Vincent Coubard 2:9ee673e0b86a 58 return urlDataLength;
Vincent Coubard 2:9ee673e0b86a 59 }
Vincent Coubard 2:9ee673e0b86a 60
Vincent Coubard 2:9ee673e0b86a 61 void URLFrame::setURLData(const char *urlDataIn)
Vincent Coubard 2:9ee673e0b86a 62 {
Vincent Coubard 2:9ee673e0b86a 63 encodeURL(urlDataIn);
Vincent Coubard 2:9ee673e0b86a 64 }
Vincent Coubard 2:9ee673e0b86a 65
Vincent Coubard 2:9ee673e0b86a 66 void URLFrame::setEncodedURLData(const uint8_t* urlEncodedDataIn, const uint8_t urlEncodedDataLengthIn)
Vincent Coubard 2:9ee673e0b86a 67 {
Vincent Coubard 2:9ee673e0b86a 68 urlDataLength = urlEncodedDataLengthIn;
Vincent Coubard 2:9ee673e0b86a 69 memcpy(urlData, urlEncodedDataIn, urlEncodedDataLengthIn);
Vincent Coubard 2:9ee673e0b86a 70 }
Vincent Coubard 2:9ee673e0b86a 71
Vincent Coubard 2:9ee673e0b86a 72 void URLFrame::encodeURL(const char *urlDataIn)
Vincent Coubard 2:9ee673e0b86a 73 {
Vincent Coubard 2:9ee673e0b86a 74 const char *prefixes[] = {
Vincent Coubard 2:9ee673e0b86a 75 "http://www.",
Vincent Coubard 2:9ee673e0b86a 76 "https://www.",
Vincent Coubard 2:9ee673e0b86a 77 "http://",
Vincent Coubard 2:9ee673e0b86a 78 "https://",
Vincent Coubard 2:9ee673e0b86a 79 };
Vincent Coubard 2:9ee673e0b86a 80 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
Vincent Coubard 2:9ee673e0b86a 81 const char *suffixes[] = {
Vincent Coubard 2:9ee673e0b86a 82 ".com/",
Vincent Coubard 2:9ee673e0b86a 83 ".org/",
Vincent Coubard 2:9ee673e0b86a 84 ".edu/",
Vincent Coubard 2:9ee673e0b86a 85 ".net/",
Vincent Coubard 2:9ee673e0b86a 86 ".info/",
Vincent Coubard 2:9ee673e0b86a 87 ".biz/",
Vincent Coubard 2:9ee673e0b86a 88 ".gov/",
Vincent Coubard 2:9ee673e0b86a 89 ".com",
Vincent Coubard 2:9ee673e0b86a 90 ".org",
Vincent Coubard 2:9ee673e0b86a 91 ".edu",
Vincent Coubard 2:9ee673e0b86a 92 ".net",
Vincent Coubard 2:9ee673e0b86a 93 ".info",
Vincent Coubard 2:9ee673e0b86a 94 ".biz",
Vincent Coubard 2:9ee673e0b86a 95 ".gov"
Vincent Coubard 2:9ee673e0b86a 96 };
Vincent Coubard 2:9ee673e0b86a 97 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
Vincent Coubard 2:9ee673e0b86a 98
Vincent Coubard 2:9ee673e0b86a 99 urlDataLength = 0;
Vincent Coubard 2:9ee673e0b86a 100 memset(urlData, 0, sizeof(UrlData_t));
Vincent Coubard 2:9ee673e0b86a 101
Vincent Coubard 2:9ee673e0b86a 102 if ((urlDataIn == NULL) || (strlen(urlDataIn) == 0)) {
Vincent Coubard 2:9ee673e0b86a 103 return;
Vincent Coubard 2:9ee673e0b86a 104 }
Vincent Coubard 2:9ee673e0b86a 105
Vincent Coubard 2:9ee673e0b86a 106 /*
Vincent Coubard 2:9ee673e0b86a 107 * handle prefix
Vincent Coubard 2:9ee673e0b86a 108 */
Vincent Coubard 2:9ee673e0b86a 109 for (size_t i = 0; i < NUM_PREFIXES; i++) {
Vincent Coubard 2:9ee673e0b86a 110 size_t prefixLen = strlen(prefixes[i]);
Vincent Coubard 2:9ee673e0b86a 111 if (strncmp(urlDataIn, prefixes[i], prefixLen) == 0) {
Vincent Coubard 2:9ee673e0b86a 112 urlData[urlDataLength++] = i;
Vincent Coubard 2:9ee673e0b86a 113 urlDataIn += prefixLen;
Vincent Coubard 2:9ee673e0b86a 114 break;
Vincent Coubard 2:9ee673e0b86a 115 }
Vincent Coubard 2:9ee673e0b86a 116 }
Vincent Coubard 2:9ee673e0b86a 117
Vincent Coubard 2:9ee673e0b86a 118 /*
Vincent Coubard 2:9ee673e0b86a 119 * handle suffixes
Vincent Coubard 2:9ee673e0b86a 120 */
Vincent Coubard 2:9ee673e0b86a 121 while (*urlDataIn && (urlDataLength < URL_DATA_MAX)) {
Vincent Coubard 2:9ee673e0b86a 122 /* check for suffix match */
Vincent Coubard 2:9ee673e0b86a 123 size_t i;
Vincent Coubard 2:9ee673e0b86a 124 for (i = 0; i < NUM_SUFFIXES; i++) {
Vincent Coubard 2:9ee673e0b86a 125 size_t suffixLen = strlen(suffixes[i]);
Vincent Coubard 2:9ee673e0b86a 126 if (strncmp(urlDataIn, suffixes[i], suffixLen) == 0) {
Vincent Coubard 2:9ee673e0b86a 127 urlData[urlDataLength++] = i;
Vincent Coubard 2:9ee673e0b86a 128 urlDataIn += suffixLen;
Vincent Coubard 2:9ee673e0b86a 129 break; /* from the for loop for checking against suffixes */
Vincent Coubard 2:9ee673e0b86a 130 }
Vincent Coubard 2:9ee673e0b86a 131 }
Vincent Coubard 2:9ee673e0b86a 132 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
Vincent Coubard 2:9ee673e0b86a 133 if (i == NUM_SUFFIXES) {
Vincent Coubard 2:9ee673e0b86a 134 urlData[urlDataLength++] = *urlDataIn;
Vincent Coubard 2:9ee673e0b86a 135 ++urlDataIn;
Vincent Coubard 2:9ee673e0b86a 136 }
Vincent Coubard 2:9ee673e0b86a 137 }
Vincent Coubard 2:9ee673e0b86a 138 }