Bill Schilit / BLE_API

Improve readability with getHandle inline

Fork of BLE_API by Bluetooth Low Energy

services/URIBeacon2Service.h@158:08f609d8a6d4, 2014-11-28 (annotated)

Committer:
rgrover1
Date:
Fri Nov 28 14:11:20 2014 +0000
Revision:
158:08f609d8a6d4
Parent:
157:8bd620881bc9
Child:
159:e915a0cebcce
Synchronized with git rev 29a046fa

Author: Rohit Grover

extracted a setup().

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 147:f772d9b93808 1 /* mbed Microcontroller Library
rgrover1 147:f772d9b93808 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 147:f772d9b93808 3 *
rgrover1 147:f772d9b93808 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 147:f772d9b93808 5 * you may not use this file except in compliance with the License.
rgrover1 147:f772d9b93808 6 * You may obtain a copy of the License at
rgrover1 147:f772d9b93808 7 *
rgrover1 147:f772d9b93808 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 147:f772d9b93808 9 *
rgrover1 147:f772d9b93808 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 147:f772d9b93808 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 147:f772d9b93808 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 147:f772d9b93808 13 * See the License for the specific language governing permissions and
rgrover1 147:f772d9b93808 14 * limitations under the License.
rgrover1 147:f772d9b93808 15 */
rgrover1 147:f772d9b93808 16
rgrover1 147:f772d9b93808 17 #ifndef __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 147:f772d9b93808 18 #define __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 147:f772d9b93808 19
rgrover1 147:f772d9b93808 20 #include "BLEDevice.h"
rgrover1 147:f772d9b93808 21
rgrover1 147:f772d9b93808 22 class URIBeacon2Service {
rgrover1 147:f772d9b93808 23 public:
rgrover1 158:08f609d8a6d4 24 URIBeacon2Service(BLEDevice &ble_, const char *urldata, uint8_t flags_ = 0, uint8_t power_ = 0) :
rgrover1 158:08f609d8a6d4 25 ble(ble_), payloadIndex(0), serviceDataPayload(),
rgrover1 158:08f609d8a6d4 26 uriDataLength(0),
rgrover1 158:08f609d8a6d4 27 uriDataValue(),
rgrover1 158:08f609d8a6d4 28 flags(flags_),
rgrover1 158:08f609d8a6d4 29 power(power_)
rgrover1 158:08f609d8a6d4 30 {
rgrover1 158:08f609d8a6d4 31 if ((urldata == NULL) || ((uriDataLength = strlen(urldata)) == 0)) {
rgrover1 158:08f609d8a6d4 32 return;
rgrover1 158:08f609d8a6d4 33 }
rgrover1 158:08f609d8a6d4 34 strncpy(reinterpret_cast<char *>(uriDataValue), urldata, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 147:f772d9b93808 35
rgrover1 158:08f609d8a6d4 36 setup();
rgrover1 147:f772d9b93808 37 }
rgrover1 147:f772d9b93808 38
rgrover1 151:cb5df770f05b 39 void dumpEncodedSeviceData() const {
rgrover1 150:aa2d70369df0 40 printf("encoded: '");
rgrover1 150:aa2d70369df0 41 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 151:cb5df770f05b 42 printf(" %02x", serviceDataPayload[i]);
rgrover1 150:aa2d70369df0 43 }
rgrover1 150:aa2d70369df0 44 printf("'\r\n");
rgrover1 150:aa2d70369df0 45 }
rgrover1 150:aa2d70369df0 46
rgrover1 147:f772d9b93808 47 private:
rgrover1 158:08f609d8a6d4 48 void setup(void) {
rgrover1 158:08f609d8a6d4 49 payloadIndex = 0;
rgrover1 148:0072d73e966f 50
rgrover1 158:08f609d8a6d4 51 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 158:08f609d8a6d4 52 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 158:08f609d8a6d4 53 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 158:08f609d8a6d4 54 serviceDataPayload[payloadIndex++] = flags;
rgrover1 158:08f609d8a6d4 55 serviceDataPayload[payloadIndex++] = power;
rgrover1 158:08f609d8a6d4 56
rgrover1 158:08f609d8a6d4 57 const char *urlData = reinterpret_cast<char *>(uriDataValue);
rgrover1 158:08f609d8a6d4 58 size_t sizeofURLData = uriDataLength;
rgrover1 158:08f609d8a6d4 59 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 158:08f609d8a6d4 60
rgrover1 158:08f609d8a6d4 61 ble.setTxPower(power);
rgrover1 158:08f609d8a6d4 62 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 158:08f609d8a6d4 63 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 149:6a7666d72a83 64 }
rgrover1 149:6a7666d72a83 65
rgrover1 151:cb5df770f05b 66 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 148:0072d73e966f 67 const char *prefixes[] = {
rgrover1 148:0072d73e966f 68 "http://www.",
rgrover1 148:0072d73e966f 69 "https://www.",
rgrover1 148:0072d73e966f 70 "http://",
rgrover1 148:0072d73e966f 71 "https://",
rgrover1 148:0072d73e966f 72 "urn:uuid:"
rgrover1 148:0072d73e966f 73 };
rgrover1 149:6a7666d72a83 74
rgrover1 148:0072d73e966f 75 size_t encodedBytes = 0;
rgrover1 148:0072d73e966f 76 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 148:0072d73e966f 77 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 148:0072d73e966f 78 size_t prefixLen = strlen(prefixes[i]);
rgrover1 148:0072d73e966f 79 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 151:cb5df770f05b 80 serviceDataPayload[payloadIndex++] = i;
rgrover1 149:6a7666d72a83 81 encodedBytes = 1;
rgrover1 148:0072d73e966f 82
rgrover1 148:0072d73e966f 83 urldata += prefixLen;
rgrover1 148:0072d73e966f 84 sizeofURLData -= prefixLen;
rgrover1 148:0072d73e966f 85 break;
rgrover1 148:0072d73e966f 86 }
rgrover1 148:0072d73e966f 87 }
rgrover1 148:0072d73e966f 88
rgrover1 148:0072d73e966f 89 return encodedBytes;
rgrover1 147:f772d9b93808 90 }
rgrover1 147:f772d9b93808 91
rgrover1 151:cb5df770f05b 92 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 150:aa2d70369df0 93 const char *suffixes[] = {
rgrover1 150:aa2d70369df0 94 ".com/",
rgrover1 150:aa2d70369df0 95 ".org/",
rgrover1 150:aa2d70369df0 96 ".edu/",
rgrover1 150:aa2d70369df0 97 ".net/",
rgrover1 150:aa2d70369df0 98 ".info/",
rgrover1 150:aa2d70369df0 99 ".biz/",
rgrover1 150:aa2d70369df0 100 ".gov/",
rgrover1 150:aa2d70369df0 101 ".com",
rgrover1 150:aa2d70369df0 102 ".org",
rgrover1 150:aa2d70369df0 103 ".edu",
rgrover1 150:aa2d70369df0 104 ".net",
rgrover1 150:aa2d70369df0 105 ".info",
rgrover1 150:aa2d70369df0 106 ".biz",
rgrover1 150:aa2d70369df0 107 ".gov"
rgrover1 150:aa2d70369df0 108 };
rgrover1 150:aa2d70369df0 109 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 150:aa2d70369df0 110
rgrover1 150:aa2d70369df0 111 size_t encodedBytes = 0;
rgrover1 155:a3fafce0bc0b 112 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 150:aa2d70369df0 113 /* check for suffix match */
rgrover1 150:aa2d70369df0 114 unsigned i;
rgrover1 150:aa2d70369df0 115 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 150:aa2d70369df0 116 size_t suffixLen = strlen(suffixes[i]);
rgrover1 150:aa2d70369df0 117 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 150:aa2d70369df0 118 continue;
rgrover1 150:aa2d70369df0 119 }
rgrover1 150:aa2d70369df0 120
rgrover1 150:aa2d70369df0 121 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 151:cb5df770f05b 122 serviceDataPayload[payloadIndex++] = i;
rgrover1 150:aa2d70369df0 123 ++encodedBytes;
rgrover1 150:aa2d70369df0 124 urldata += suffixLen;
rgrover1 150:aa2d70369df0 125 sizeofURLData -= suffixLen;
rgrover1 150:aa2d70369df0 126 break; /* from the for loop for checking against suffixes */
rgrover1 150:aa2d70369df0 127 }
rgrover1 150:aa2d70369df0 128 }
rgrover1 150:aa2d70369df0 129 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 150:aa2d70369df0 130 if (i == NUM_SUFFIXES) {
rgrover1 151:cb5df770f05b 131 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 150:aa2d70369df0 132 ++encodedBytes;
rgrover1 150:aa2d70369df0 133 ++urldata;
rgrover1 150:aa2d70369df0 134 --sizeofURLData;
rgrover1 150:aa2d70369df0 135 }
rgrover1 150:aa2d70369df0 136 }
rgrover1 150:aa2d70369df0 137
rgrover1 150:aa2d70369df0 138 return encodedBytes;
rgrover1 150:aa2d70369df0 139 }
rgrover1 150:aa2d70369df0 140
rgrover1 147:f772d9b93808 141 private:
rgrover1 157:8bd620881bc9 142 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 27;
rgrover1 158:08f609d8a6d4 143 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48;
rgrover1 147:f772d9b93808 144
rgrover1 147:f772d9b93808 145 private:
rgrover1 147:f772d9b93808 146 BLEDevice &ble;
rgrover1 148:0072d73e966f 147
rgrover1 158:08f609d8a6d4 148 size_t payloadIndex;
rgrover1 158:08f609d8a6d4 149 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 158:08f609d8a6d4 150 uint16_t uriDataLength;
rgrover1 158:08f609d8a6d4 151 uint8_t uriDataValue[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 158:08f609d8a6d4 152 uint8_t flags;
rgrover1 158:08f609d8a6d4 153 uint8_t power;
rgrover1 147:f772d9b93808 154 };
rgrover1 147:f772d9b93808 155
rgrover1 147:f772d9b93808 156 #endif /* #ifndef __BLE_URI_BEACON_2_SERVICE_H__*/