Sam Musso / BLE_API

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Fork of BLE_API by Bluetooth Low Energy

services/URIBeacon2Service.h@183:41d6ffadba96, 2014-11-28 (annotated)

Committer:
rgrover1
Date:
Fri Nov 28 14:11:23 2014 +0000
Revision:
183:41d6ffadba96
Parent:
182:d16f8c11816b
Child:
184:ec211f2288ef
Synchronized with git rev 09a38f1e

Author: Rohit Grover

comment headers and minor white space diffs.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 171:6092e61690dc 1 /* mbed Microcontroller Library
rgrover1 171:6092e61690dc 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 171:6092e61690dc 3 *
rgrover1 171:6092e61690dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 171:6092e61690dc 5 * you may not use this file except in compliance with the License.
rgrover1 171:6092e61690dc 6 * You may obtain a copy of the License at
rgrover1 171:6092e61690dc 7 *
rgrover1 171:6092e61690dc 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 171:6092e61690dc 9 *
rgrover1 171:6092e61690dc 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 171:6092e61690dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 171:6092e61690dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 171:6092e61690dc 13 * See the License for the specific language governing permissions and
rgrover1 171:6092e61690dc 14 * limitations under the License.
rgrover1 171:6092e61690dc 15 */
rgrover1 171:6092e61690dc 16
rgrover1 171:6092e61690dc 17 #ifndef __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 171:6092e61690dc 18 #define __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 171:6092e61690dc 19
rgrover1 171:6092e61690dc 20 #include "BLEDevice.h"
rgrover1 171:6092e61690dc 21
rgrover1 171:6092e61690dc 22 #define UUID_INITIALIZER_LIST(FIRST, SECOND) { \
rgrover1 171:6092e61690dc 23 0xee, 0x0c, FIRST, SECOND, 0x87, 0x86, 0x40, 0xba, \
rgrover1 171:6092e61690dc 24 0xab, 0x96, 0x99, 0xb9, 0x1a, 0xc9, 0x81, 0xd8, \
rgrover1 171:6092e61690dc 25 }
rgrover1 171:6092e61690dc 26 const uint8_t URIBeacon2ControlServiceUUID[] = UUID_INITIALIZER_LIST(0x20, 0x80);
rgrover1 171:6092e61690dc 27 const uint8_t lockedStateCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x81);
rgrover1 171:6092e61690dc 28 const uint8_t uriDataCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x84);
rgrover1 171:6092e61690dc 29 const uint8_t flagsCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x85);
rgrover1 178:b6d6a2a11e86 30 const uint8_t txPowerLevelsCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x86);
rgrover1 171:6092e61690dc 31 const uint8_t beaconPeriodCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x88);
rgrover1 171:6092e61690dc 32
rgrover1 171:6092e61690dc 33 class URIBeacon2Service {
rgrover1 180:afcd2f9c2ada 34 public:
rgrover1 175:4e85f7225f8f 35 enum TXPowerModes_t {
rgrover1 175:4e85f7225f8f 36 TX_POWER_MODE_LOWEST = 0,
rgrover1 175:4e85f7225f8f 37 TX_POWER_MODE_LOW = 1,
rgrover1 175:4e85f7225f8f 38 TX_POWER_MODE_MEDIUM = 2,
rgrover1 175:4e85f7225f8f 39 TX_POWER_MODE_HIGH = 3,
rgrover1 177:17f4b5924fe9 40 NUM_POWER_MODES
rgrover1 175:4e85f7225f8f 41 };
rgrover1 175:4e85f7225f8f 42
rgrover1 181:bbb6ce1082c3 43 /**
rgrover1 181:bbb6ce1082c3 44 * Singleton factory.
rgrover1 181:bbb6ce1082c3 45 *
rgrover1 181:bbb6ce1082c3 46 * @param[ref] ble
rgrover1 181:bbb6ce1082c3 47 * BLEDevice object for the underlying controller.
rgrover1 181:bbb6ce1082c3 48 * @param[in] urldata
rgrover1 181:bbb6ce1082c3 49 * URI as a null-terminated string.
rgrover1 181:bbb6ce1082c3 50 * @param[in] flagsIn
rgrover1 181:bbb6ce1082c3 51 * UriBeacon Flags.
rgrover1 181:bbb6ce1082c3 52 * @param[in] effectiveTxPowerIn
rgrover1 181:bbb6ce1082c3 53 * UriBeacon Tx Power Level in dBm.
rgrover1 181:bbb6ce1082c3 54 * @param[in] beaconPeriodIn
rgrover1 181:bbb6ce1082c3 55 * The period in milliseconds that a UriBeacon packet is
rgrover1 181:bbb6ce1082c3 56 * transmitted. A value of zero disables UriBeacon
rgrover1 181:bbb6ce1082c3 57 * transmissions.
rgrover1 181:bbb6ce1082c3 58 * @return
rgrover1 181:bbb6ce1082c3 59 * Pointer to the singleton uribeacon service if the initialization goes well; else NULL.
rgrover1 181:bbb6ce1082c3 60 */
rgrover1 180:afcd2f9c2ada 61 static URIBeacon2Service *setupService(BLEDevice &ble_, const char *urldata, uint8_t flagsIn = 0, int8_t effectiveTxPowerIn = 0, uint16_t beaconPeriodIn = 1000) {
rgrover1 180:afcd2f9c2ada 62 if ((urldata == NULL) || (strlen(urldata) == 0)) {
rgrover1 180:afcd2f9c2ada 63 return NULL;
rgrover1 171:6092e61690dc 64 }
rgrover1 171:6092e61690dc 65
rgrover1 180:afcd2f9c2ada 66 static URIBeacon2Service service(ble_, urldata, flagsIn, effectiveTxPowerIn, beaconPeriodIn);
rgrover1 182:d16f8c11816b 67 if (!service.failedToAccomodate) {
rgrover1 182:d16f8c11816b 68 return &service;
rgrover1 182:d16f8c11816b 69 }
rgrover1 182:d16f8c11816b 70
rgrover1 182:d16f8c11816b 71 return NULL; /* Oops. Failed to accommodate uridata within the advertising payload. */
rgrover1 171:6092e61690dc 72 }
rgrover1 171:6092e61690dc 73
rgrover1 173:05c4b1cea65f 74 /**
rgrover1 173:05c4b1cea65f 75 * Update flags of the URIBeacon dynamically.
rgrover1 173:05c4b1cea65f 76 *
rgrover1 173:05c4b1cea65f 77 * @param[in] flagsIn
rgrover1 173:05c4b1cea65f 78 *
rgrover1 173:05c4b1cea65f 79 * ### UriBeacon Flags
rgrover1 173:05c4b1cea65f 80 * Bit | Description
rgrover1 173:05c4b1cea65f 81 * :---- | :----------
rgrover1 173:05c4b1cea65f 82 * 0 | Invisible Hint
rgrover1 173:05c4b1cea65f 83 * 1..7 | Reserved for future use. Must be zero.
rgrover1 173:05c4b1cea65f 84 *
rgrover1 173:05c4b1cea65f 85 * The `Invisible Hint` flag is a command for the user-agent that tells
rgrover1 173:05c4b1cea65f 86 * it not to access or display the UriBeacon. This is a guideline only,
rgrover1 173:05c4b1cea65f 87 * and is not a blocking method. User agents may, with user approval,
rgrover1 173:05c4b1cea65f 88 * display invisible beacons.
rgrover1 173:05c4b1cea65f 89 */
rgrover1 171:6092e61690dc 90 void setFlags(uint8_t flagsIn) {
rgrover1 171:6092e61690dc 91 flags = flagsIn;
rgrover1 171:6092e61690dc 92 setup();
rgrover1 171:6092e61690dc 93 }
rgrover1 171:6092e61690dc 94
rgrover1 177:17f4b5924fe9 95 /**
rgrover1 183:41d6ffadba96 96 * Please note that the following public APIs are offered to allow modifying
rgrover1 183:41d6ffadba96 97 * the service programmatically. It is also possible to do so over BLE GATT
rgrover1 183:41d6ffadba96 98 * transactions.
rgrover1 183:41d6ffadba96 99 */
rgrover1 183:41d6ffadba96 100 public:
rgrover1 183:41d6ffadba96 101 /**
rgrover1 177:17f4b5924fe9 102 * Update the txPower for a particular mode in the powerLevels table.
rgrover1 177:17f4b5924fe9 103 */
rgrover1 177:17f4b5924fe9 104 void setTxPowerLevel(TXPowerModes_t mode, int8_t txPowerIn) {
rgrover1 177:17f4b5924fe9 105 powerLevels[mode] = txPowerIn;
rgrover1 177:17f4b5924fe9 106 }
rgrover1 177:17f4b5924fe9 107
rgrover1 177:17f4b5924fe9 108 /**
rgrover1 177:17f4b5924fe9 109 * Set the effective power mode from one of the values in the powerLevels tables.
rgrover1 177:17f4b5924fe9 110 */
rgrover1 177:17f4b5924fe9 111 void setPowerMode(TXPowerModes_t mode) {
rgrover1 177:17f4b5924fe9 112 effectivePower = powerLevels[mode];
rgrover1 171:6092e61690dc 113 setup();
rgrover1 171:6092e61690dc 114 }
rgrover1 171:6092e61690dc 115
rgrover1 183:41d6ffadba96 116 /**
rgrover1 183:41d6ffadba96 117 * The period in milliseconds that a UriBeacon packet is transmitted.
rgrover1 183:41d6ffadba96 118 *
rgrover1 183:41d6ffadba96 119 * @Note: A value of zero disables UriBeacon transmissions.
rgrover1 183:41d6ffadba96 120 */
rgrover1 171:6092e61690dc 121 void setBeaconPeriod(uint16_t beaconPeriodIn) {
rgrover1 171:6092e61690dc 122 beaconPeriod = beaconPeriodIn;
rgrover1 171:6092e61690dc 123 setup();
rgrover1 171:6092e61690dc 124 }
rgrover1 171:6092e61690dc 125
rgrover1 180:afcd2f9c2ada 126 private:
rgrover1 183:41d6ffadba96 127 /**
rgrover1 183:41d6ffadba96 128 * Private constructor. We want a singleton.
rgrover1 183:41d6ffadba96 129 */
rgrover1 180:afcd2f9c2ada 130 URIBeacon2Service(BLEDevice &ble_, const char *urldata, uint8_t flagsIn = 0, int8_t effectiveTxPowerIn = 0, uint16_t beaconPeriodIn = 1000) :
rgrover1 180:afcd2f9c2ada 131 ble(ble_),
rgrover1 180:afcd2f9c2ada 132 payloadIndex(0),
rgrover1 180:afcd2f9c2ada 133 serviceDataPayload(),
rgrover1 182:d16f8c11816b 134 failedToAccomodate(false),
rgrover1 180:afcd2f9c2ada 135 lockedState(false),
rgrover1 180:afcd2f9c2ada 136 uriDataLength(strlen(urldata)),
rgrover1 180:afcd2f9c2ada 137 uriDataValue(),
rgrover1 180:afcd2f9c2ada 138 flags(flagsIn),
rgrover1 180:afcd2f9c2ada 139 effectivePower(effectiveTxPowerIn),
rgrover1 180:afcd2f9c2ada 140 powerLevels(),
rgrover1 180:afcd2f9c2ada 141 beaconPeriod(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriodIn)),
rgrover1 180:afcd2f9c2ada 142 lockedStateChar(lockedStateCharUUID, reinterpret_cast<uint8_t *>(&lockedState), 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
rgrover1 180:afcd2f9c2ada 143 uriDataChar(uriDataCharUUID,
rgrover1 180:afcd2f9c2ada 144 uriDataValue,
rgrover1 180:afcd2f9c2ada 145 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 180:afcd2f9c2ada 146 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 180:afcd2f9c2ada 147 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE),
rgrover1 180:afcd2f9c2ada 148 flagsChar(flagsCharUUID, &flags, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 180:afcd2f9c2ada 149 txPowerLevelsChar(txPowerLevelsCharUUID,
rgrover1 180:afcd2f9c2ada 150 reinterpret_cast<uint8_t *>(powerLevels),
rgrover1 180:afcd2f9c2ada 151 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 180:afcd2f9c2ada 152 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 180:afcd2f9c2ada 153 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 180:afcd2f9c2ada 154 beaconPeriodChar(beaconPeriodCharUUID, reinterpret_cast<uint8_t *>(&beaconPeriod), 2, 2,
rgrover1 180:afcd2f9c2ada 155 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE)
rgrover1 180:afcd2f9c2ada 156 {
rgrover1 180:afcd2f9c2ada 157 strncpy(reinterpret_cast<char *>(uriDataValue), urldata, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 180:afcd2f9c2ada 158
rgrover1 180:afcd2f9c2ada 159 setup();
rgrover1 180:afcd2f9c2ada 160
rgrover1 180:afcd2f9c2ada 161 GattCharacteristic *charTable[] = {&lockedStateChar, &uriDataChar, &flagsChar, &txPowerLevelsChar, &beaconPeriodChar};
rgrover1 180:afcd2f9c2ada 162 GattService beaconControlService(URIBeacon2ControlServiceUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 180:afcd2f9c2ada 163
rgrover1 180:afcd2f9c2ada 164 ble.addService(beaconControlService);
rgrover1 180:afcd2f9c2ada 165 ble.onDataWritten(this, &URIBeacon2Service::onDataWritten);
rgrover1 180:afcd2f9c2ada 166 }
rgrover1 180:afcd2f9c2ada 167
rgrover1 171:6092e61690dc 168 protected:
rgrover1 171:6092e61690dc 169 /**
rgrover1 171:6092e61690dc 170 * This callback allows the DFU service to receive the initial trigger to
rgrover1 171:6092e61690dc 171 * handover control to the bootloader; but first the application is given a
rgrover1 171:6092e61690dc 172 * chance to clean up.
rgrover1 171:6092e61690dc 173 */
rgrover1 171:6092e61690dc 174 virtual void onDataWritten(const GattCharacteristicWriteCBParams *params) {
rgrover1 171:6092e61690dc 175 if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
rgrover1 171:6092e61690dc 176 if (lockedState) { /* When locked, the device isn't allowed to update the uriData characteristic. */
rgrover1 171:6092e61690dc 177 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 178 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriDataValue, uriDataLength);
rgrover1 171:6092e61690dc 179 return;
rgrover1 171:6092e61690dc 180 }
rgrover1 171:6092e61690dc 181
rgrover1 171:6092e61690dc 182 /* We don't handle very large writes at the moment. */
rgrover1 171:6092e61690dc 183 if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 171:6092e61690dc 184 return;
rgrover1 171:6092e61690dc 185 }
rgrover1 171:6092e61690dc 186
rgrover1 171:6092e61690dc 187 uriDataLength = params->len;
rgrover1 171:6092e61690dc 188 memcpy(uriDataValue, params->data, uriDataLength);
rgrover1 171:6092e61690dc 189 } else if (params->charHandle == flagsChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 190 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 171:6092e61690dc 191 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 192 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 171:6092e61690dc 193 return;
rgrover1 171:6092e61690dc 194 } else {
rgrover1 171:6092e61690dc 195 flags = *(params->data);
rgrover1 171:6092e61690dc 196 }
rgrover1 178:b6d6a2a11e86 197 } else if (params->charHandle == txPowerLevelsChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 198 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 178:b6d6a2a11e86 199 /* Restore GATT database with previous value. */
rgrover1 178:b6d6a2a11e86 200 ble.updateCharacteristicValue(txPowerLevelsChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(powerLevels), NUM_POWER_MODES * sizeof(int8_t));
rgrover1 178:b6d6a2a11e86 201 return;
rgrover1 178:b6d6a2a11e86 202 } else {
rgrover1 178:b6d6a2a11e86 203 memcpy(powerLevels, params->data, NUM_POWER_MODES * sizeof(int8_t));
rgrover1 178:b6d6a2a11e86 204 }
rgrover1 171:6092e61690dc 205 } else if (params->charHandle == beaconPeriodChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 206 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 171:6092e61690dc 207 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 208 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), (uint8_t *)&beaconPeriod, 2 /* size */);
rgrover1 171:6092e61690dc 209 return;
rgrover1 171:6092e61690dc 210 } else {
rgrover1 171:6092e61690dc 211 beaconPeriod = *((uint16_t *)(params->data));
rgrover1 171:6092e61690dc 212 }
rgrover1 171:6092e61690dc 213 }
rgrover1 171:6092e61690dc 214 setup();
rgrover1 171:6092e61690dc 215 ble.setAdvertisingPayload();
rgrover1 171:6092e61690dc 216 }
rgrover1 171:6092e61690dc 217
rgrover1 171:6092e61690dc 218 /**
rgrover1 171:6092e61690dc 219 * For debugging only.
rgrover1 171:6092e61690dc 220 */
rgrover1 171:6092e61690dc 221 void dumpEncodedSeviceData() const {
rgrover1 171:6092e61690dc 222 printf("encoded: '");
rgrover1 171:6092e61690dc 223 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 171:6092e61690dc 224 printf(" %02x", serviceDataPayload[i]);
rgrover1 171:6092e61690dc 225 }
rgrover1 171:6092e61690dc 226 printf("'\r\n");
rgrover1 171:6092e61690dc 227 }
rgrover1 171:6092e61690dc 228
rgrover1 171:6092e61690dc 229 private:
rgrover1 171:6092e61690dc 230 void setup(void) {
rgrover1 171:6092e61690dc 231 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 232
rgrover1 171:6092e61690dc 233 payloadIndex = 0;
rgrover1 171:6092e61690dc 234 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 171:6092e61690dc 235 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 171:6092e61690dc 236 serviceDataPayload[payloadIndex++] = flags;
rgrover1 174:5ae7781362b6 237 serviceDataPayload[payloadIndex++] = effectivePower;
rgrover1 171:6092e61690dc 238
rgrover1 183:41d6ffadba96 239 const char *urlData = reinterpret_cast<char *>(uriDataValue);
rgrover1 171:6092e61690dc 240 size_t sizeofURLData = uriDataLength;
rgrover1 183:41d6ffadba96 241 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 171:6092e61690dc 242
rgrover1 171:6092e61690dc 243 ble.clearAdvertisingPayload();
rgrover1 171:6092e61690dc 244 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 171:6092e61690dc 245 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 171:6092e61690dc 246
rgrover1 171:6092e61690dc 247 ble.setAdvertisingInterval(beaconPeriod);
rgrover1 174:5ae7781362b6 248 ble.setTxPower(effectivePower);
rgrover1 171:6092e61690dc 249 }
rgrover1 171:6092e61690dc 250
rgrover1 171:6092e61690dc 251 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 171:6092e61690dc 252 const char *prefixes[] = {
rgrover1 171:6092e61690dc 253 "http://www.",
rgrover1 171:6092e61690dc 254 "https://www.",
rgrover1 171:6092e61690dc 255 "http://",
rgrover1 171:6092e61690dc 256 "https://",
rgrover1 171:6092e61690dc 257 "urn:uuid:"
rgrover1 171:6092e61690dc 258 };
rgrover1 171:6092e61690dc 259
rgrover1 171:6092e61690dc 260 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 261 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 171:6092e61690dc 262 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 171:6092e61690dc 263 size_t prefixLen = strlen(prefixes[i]);
rgrover1 171:6092e61690dc 264 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 171:6092e61690dc 265 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 266 encodedBytes = 1;
rgrover1 171:6092e61690dc 267
rgrover1 171:6092e61690dc 268 urldata += prefixLen;
rgrover1 171:6092e61690dc 269 sizeofURLData -= prefixLen;
rgrover1 171:6092e61690dc 270 break;
rgrover1 171:6092e61690dc 271 }
rgrover1 171:6092e61690dc 272 }
rgrover1 171:6092e61690dc 273
rgrover1 171:6092e61690dc 274 return encodedBytes;
rgrover1 171:6092e61690dc 275 }
rgrover1 171:6092e61690dc 276
rgrover1 171:6092e61690dc 277 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 171:6092e61690dc 278 const char *suffixes[] = {
rgrover1 171:6092e61690dc 279 ".com/",
rgrover1 171:6092e61690dc 280 ".org/",
rgrover1 171:6092e61690dc 281 ".edu/",
rgrover1 171:6092e61690dc 282 ".net/",
rgrover1 171:6092e61690dc 283 ".info/",
rgrover1 171:6092e61690dc 284 ".biz/",
rgrover1 171:6092e61690dc 285 ".gov/",
rgrover1 171:6092e61690dc 286 ".com",
rgrover1 171:6092e61690dc 287 ".org",
rgrover1 171:6092e61690dc 288 ".edu",
rgrover1 171:6092e61690dc 289 ".net",
rgrover1 171:6092e61690dc 290 ".info",
rgrover1 171:6092e61690dc 291 ".biz",
rgrover1 171:6092e61690dc 292 ".gov"
rgrover1 171:6092e61690dc 293 };
rgrover1 171:6092e61690dc 294 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 171:6092e61690dc 295
rgrover1 171:6092e61690dc 296 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 297 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 171:6092e61690dc 298 /* check for suffix match */
rgrover1 171:6092e61690dc 299 unsigned i;
rgrover1 171:6092e61690dc 300 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 171:6092e61690dc 301 size_t suffixLen = strlen(suffixes[i]);
rgrover1 171:6092e61690dc 302 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 171:6092e61690dc 303 continue;
rgrover1 171:6092e61690dc 304 }
rgrover1 171:6092e61690dc 305
rgrover1 171:6092e61690dc 306 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 171:6092e61690dc 307 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 308 ++encodedBytes;
rgrover1 171:6092e61690dc 309 urldata += suffixLen;
rgrover1 171:6092e61690dc 310 sizeofURLData -= suffixLen;
rgrover1 171:6092e61690dc 311 break; /* from the for loop for checking against suffixes */
rgrover1 171:6092e61690dc 312 }
rgrover1 171:6092e61690dc 313 }
rgrover1 171:6092e61690dc 314 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 171:6092e61690dc 315 if (i == NUM_SUFFIXES) {
rgrover1 171:6092e61690dc 316 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 171:6092e61690dc 317 ++encodedBytes;
rgrover1 171:6092e61690dc 318 ++urldata;
rgrover1 171:6092e61690dc 319 --sizeofURLData;
rgrover1 171:6092e61690dc 320 }
rgrover1 171:6092e61690dc 321 }
rgrover1 182:d16f8c11816b 322 if ((payloadIndex == MAX_SIZEOF_SERVICE_DATA_PAYLOAD) && (sizeofURLData != 0)) {
rgrover1 182:d16f8c11816b 323 failedToAccomodate = true;
rgrover1 182:d16f8c11816b 324 }
rgrover1 171:6092e61690dc 325
rgrover1 171:6092e61690dc 326 return encodedBytes;
rgrover1 171:6092e61690dc 327 }
rgrover1 171:6092e61690dc 328
rgrover1 171:6092e61690dc 329 private:
rgrover1 171:6092e61690dc 330 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 27;
rgrover1 171:6092e61690dc 331 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48;
rgrover1 171:6092e61690dc 332
rgrover1 171:6092e61690dc 333 private:
rgrover1 171:6092e61690dc 334 BLEDevice &ble;
rgrover1 171:6092e61690dc 335
rgrover1 171:6092e61690dc 336 size_t payloadIndex;
rgrover1 171:6092e61690dc 337 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 182:d16f8c11816b 338 bool failedToAccomodate;
rgrover1 182:d16f8c11816b 339
rgrover1 171:6092e61690dc 340 bool lockedState;
rgrover1 171:6092e61690dc 341 uint16_t uriDataLength;
rgrover1 171:6092e61690dc 342 uint8_t uriDataValue[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 171:6092e61690dc 343 uint8_t flags;
rgrover1 174:5ae7781362b6 344 int8_t effectivePower;
rgrover1 177:17f4b5924fe9 345 int8_t powerLevels[NUM_POWER_MODES];
rgrover1 171:6092e61690dc 346 uint16_t beaconPeriod;
rgrover1 171:6092e61690dc 347
rgrover1 171:6092e61690dc 348 GattCharacteristic lockedStateChar;
rgrover1 171:6092e61690dc 349 GattCharacteristic uriDataChar;
rgrover1 171:6092e61690dc 350 GattCharacteristic flagsChar;
rgrover1 178:b6d6a2a11e86 351 GattCharacteristic txPowerLevelsChar;
rgrover1 171:6092e61690dc 352 GattCharacteristic beaconPeriodChar;
rgrover1 171:6092e61690dc 353 };
rgrover1 171:6092e61690dc 354
rgrover1 171:6092e61690dc 355 #endif /* #ifndef __BLE_URI_BEACON_2_SERVICE_H__*/