Donatien Garnier
NetServices Stack source
Dependents: HelloWorld ServoInterfaceBoardExample1 4180_Lab4
services/mysql/MySQLClient.cpp@0:632c9925f013, 2010-06-11 (annotated)
- Committer:
- donatien
- Date:
- Fri Jun 11 16:05:15 2010 +0000
- Revision:
- 0:632c9925f013
- Child:
- 4:fd826cad83c0
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| donatien | 0:632c9925f013 | 1 | |
| donatien | 0:632c9925f013 | 2 | /* |
| donatien | 0:632c9925f013 | 3 | Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) |
| donatien | 0:632c9925f013 | 4 | |
| donatien | 0:632c9925f013 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| donatien | 0:632c9925f013 | 6 | of this software and associated documentation files (the "Software"), to deal |
| donatien | 0:632c9925f013 | 7 | in the Software without restriction, including without limitation the rights |
| donatien | 0:632c9925f013 | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| donatien | 0:632c9925f013 | 9 | copies of the Software, and to permit persons to whom the Software is |
| donatien | 0:632c9925f013 | 10 | furnished to do so, subject to the following conditions: |
| donatien | 0:632c9925f013 | 11 | |
| donatien | 0:632c9925f013 | 12 | The above copyright notice and this permission notice shall be included in |
| donatien | 0:632c9925f013 | 13 | all copies or substantial portions of the Software. |
| donatien | 0:632c9925f013 | 14 | |
| donatien | 0:632c9925f013 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| donatien | 0:632c9925f013 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| donatien | 0:632c9925f013 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| donatien | 0:632c9925f013 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| donatien | 0:632c9925f013 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| donatien | 0:632c9925f013 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| donatien | 0:632c9925f013 | 21 | THE SOFTWARE. |
| donatien | 0:632c9925f013 | 22 | */ |
| donatien | 0:632c9925f013 | 23 | |
| donatien | 0:632c9925f013 | 24 | #include "MySQLClient.h" |
| donatien | 0:632c9925f013 | 25 | #include "sha1.h" //For 4.1+ passwords |
| donatien | 0:632c9925f013 | 26 | #include "mycrypt.h" //For 4.0- passwords |
| donatien | 0:632c9925f013 | 27 | |
| donatien | 0:632c9925f013 | 28 | #define __DEBUG |
| donatien | 0:632c9925f013 | 29 | #include "dbg/dbg.h" |
| donatien | 0:632c9925f013 | 30 | |
| donatien | 0:632c9925f013 | 31 | #define MYSQL_TIMEOUT_MS 15000 |
| donatien | 0:632c9925f013 | 32 | #define MYSQL_PORT 3306 |
| donatien | 0:632c9925f013 | 33 | |
| donatien | 0:632c9925f013 | 34 | #define BUF_SIZE 256 |
| donatien | 0:632c9925f013 | 35 | |
| donatien | 0:632c9925f013 | 36 | #define CLIENT_LONG_PASSWORD 1 |
| donatien | 0:632c9925f013 | 37 | #define CLIENT_CONNECT_WITH_DB 8 |
| donatien | 0:632c9925f013 | 38 | #define CLIENT_PROTOCOL_41 512 |
| donatien | 0:632c9925f013 | 39 | #define CLIENT_INTERACTIVE 1024 |
| donatien | 0:632c9925f013 | 40 | #define CLIENT_SECURE_CONNECTION 32768 |
| donatien | 0:632c9925f013 | 41 | |
| donatien | 0:632c9925f013 | 42 | #define MIN(a,b) ((a)<(b)?(a):(b)) |
| donatien | 0:632c9925f013 | 43 | #define ABS(a) (((a)>0)?(a):0) |
| donatien | 0:632c9925f013 | 44 | |
| donatien | 0:632c9925f013 | 45 | //MySQL commands |
| donatien | 0:632c9925f013 | 46 | #define COM_QUIT 0x01 //Exit |
| donatien | 0:632c9925f013 | 47 | #define COM_QUERY 0x03 //Execute an SQL query |
| donatien | 0:632c9925f013 | 48 | |
| donatien | 0:632c9925f013 | 49 | //#define htons( x ) ( (( x << 8 ) & 0xFF00) | (( x >> 8 ) & 0x00FF) ) |
| donatien | 0:632c9925f013 | 50 | #define ntohs( x ) (htons(x)) |
| donatien | 0:632c9925f013 | 51 | |
| donatien | 0:632c9925f013 | 52 | /*#define htonl( x ) ( (( x << 24 ) & 0xFF000000) \ |
| donatien | 0:632c9925f013 | 53 | | (( x << 8 ) & 0x00FF0000) \ |
| donatien | 0:632c9925f013 | 54 | | (( x >> 8 ) & 0x0000FF00) \ |
| donatien | 0:632c9925f013 | 55 | | (( x >> 24 ) & 0x000000FF) )*/ |
| donatien | 0:632c9925f013 | 56 | #define htonl( x ) (x) |
| donatien | 0:632c9925f013 | 57 | #define ntohl( x ) (htonl(x)) |
| donatien | 0:632c9925f013 | 58 | |
| donatien | 0:632c9925f013 | 59 | MySQLClient::MySQLClient() : NetService(false) /*Not owned by the pool*/, m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL), |
| donatien | 0:632c9925f013 | 60 | m_pTCPSocket(NULL), m_watchdog(), m_timeout(MYSQL_TIMEOUT_MS*1000), m_pDnsReq(NULL), m_closed(true), |
| donatien | 0:632c9925f013 | 61 | m_host(), m_user(), m_password(), m_db(), m_state(MYSQL_CLOSED) |
| donatien | 0:632c9925f013 | 62 | { |
| donatien | 0:632c9925f013 | 63 | m_buf = new byte[BUF_SIZE]; |
| donatien | 0:632c9925f013 | 64 | m_pPos = m_buf; |
| donatien | 0:632c9925f013 | 65 | m_len = 0; |
| donatien | 0:632c9925f013 | 66 | m_size = BUF_SIZE; |
| donatien | 0:632c9925f013 | 67 | } |
| donatien | 0:632c9925f013 | 68 | |
| donatien | 0:632c9925f013 | 69 | MySQLClient::~MySQLClient() |
| donatien | 0:632c9925f013 | 70 | { |
| donatien | 0:632c9925f013 | 71 | close(); |
| donatien | 0:632c9925f013 | 72 | delete[] m_buf; |
| donatien | 0:632c9925f013 | 73 | } |
| donatien | 0:632c9925f013 | 74 | |
| donatien | 0:632c9925f013 | 75 | //High Level setup functions |
| donatien | 0:632c9925f013 | 76 | MySQLResult MySQLClient::open(Host& host, const string& user, const string& password, const string& db, void (*pMethod)(MySQLResult)) //Non blocking |
| donatien | 0:632c9925f013 | 77 | { |
| donatien | 0:632c9925f013 | 78 | setOnResult(pMethod); |
| donatien | 0:632c9925f013 | 79 | setup(host, user, password, db); |
| donatien | 0:632c9925f013 | 80 | return MYSQL_PROCESSING; |
| donatien | 0:632c9925f013 | 81 | } |
| donatien | 0:632c9925f013 | 82 | |
| donatien | 0:632c9925f013 | 83 | #if 0 //Ref only |
| donatien | 0:632c9925f013 | 84 | template<class T> |
| donatien | 0:632c9925f013 | 85 | MySQLResult MySQLClient::open(Host& host, const string& user, const string& password, const string& db, T* pItem, void (T::*pMethod)(MySQLResult)) //Non blocking |
| donatien | 0:632c9925f013 | 86 | { |
| donatien | 0:632c9925f013 | 87 | setOnResult(pItem, pMethod); |
| donatien | 0:632c9925f013 | 88 | setup(host, user, password, db); |
| donatien | 0:632c9925f013 | 89 | return MYSQL_PROCESSING; |
| donatien | 0:632c9925f013 | 90 | } |
| donatien | 0:632c9925f013 | 91 | #endif |
| donatien | 0:632c9925f013 | 92 | |
| donatien | 0:632c9925f013 | 93 | MySQLResult MySQLClient::sql(string& sqlCommand) |
| donatien | 0:632c9925f013 | 94 | { |
| donatien | 0:632c9925f013 | 95 | if(m_state!=MYSQL_COMMANDS) |
| donatien | 0:632c9925f013 | 96 | return MYSQL_SETUP; |
| donatien | 0:632c9925f013 | 97 | sendCommand(COM_QUERY, (byte*)sqlCommand.data(), sqlCommand.length()); |
| donatien | 0:632c9925f013 | 98 | return MYSQL_PROCESSING; |
| donatien | 0:632c9925f013 | 99 | } |
| donatien | 0:632c9925f013 | 100 | |
| donatien | 0:632c9925f013 | 101 | MySQLResult MySQLClient::exit() |
| donatien | 0:632c9925f013 | 102 | { |
| donatien | 0:632c9925f013 | 103 | sendCommand(COM_QUIT, NULL, 0); |
| donatien | 0:632c9925f013 | 104 | close(); |
| donatien | 0:632c9925f013 | 105 | return MYSQL_OK; |
| donatien | 0:632c9925f013 | 106 | } |
| donatien | 0:632c9925f013 | 107 | |
| donatien | 0:632c9925f013 | 108 | void MySQLClient::setOnResult( void (*pMethod)(MySQLResult) ) |
| donatien | 0:632c9925f013 | 109 | { |
| donatien | 0:632c9925f013 | 110 | m_pCb = pMethod; |
| donatien | 0:632c9925f013 | 111 | m_pCbItem = NULL; |
| donatien | 0:632c9925f013 | 112 | m_pCbMeth = NULL; |
| donatien | 0:632c9925f013 | 113 | } |
| donatien | 0:632c9925f013 | 114 | |
| donatien | 0:632c9925f013 | 115 | #if 0 //Ref only |
| donatien | 0:632c9925f013 | 116 | template<class T> |
| donatien | 0:632c9925f013 | 117 | void MySQLClient::setOnResult( T* pItem, void (T::*pMethod)(MySQLResult) ) |
| donatien | 0:632c9925f013 | 118 | { |
| donatien | 0:632c9925f013 | 119 | m_pCb = NULL; |
| donatien | 0:632c9925f013 | 120 | m_pCbItem = (CDummy*) pItem; |
| donatien | 0:632c9925f013 | 121 | m_pCbMeth = (void (CDummy::*)(MySQLResult)) pMethod; |
| donatien | 0:632c9925f013 | 122 | } |
| donatien | 0:632c9925f013 | 123 | #endif |
| donatien | 0:632c9925f013 | 124 | |
| donatien | 0:632c9925f013 | 125 | void MySQLClient::setTimeout(int ms) |
| donatien | 0:632c9925f013 | 126 | { |
| donatien | 0:632c9925f013 | 127 | m_timeout = 1000*ms; |
| donatien | 0:632c9925f013 | 128 | } |
| donatien | 0:632c9925f013 | 129 | |
| donatien | 0:632c9925f013 | 130 | void MySQLClient::poll() //Called by NetServices |
| donatien | 0:632c9925f013 | 131 | { |
| donatien | 0:632c9925f013 | 132 | if(m_closed) |
| donatien | 0:632c9925f013 | 133 | { |
| donatien | 0:632c9925f013 | 134 | return; |
| donatien | 0:632c9925f013 | 135 | } |
| donatien | 0:632c9925f013 | 136 | if(m_watchdog.read_us()>m_timeout) |
| donatien | 0:632c9925f013 | 137 | { |
| donatien | 0:632c9925f013 | 138 | onTimeout(); |
| donatien | 0:632c9925f013 | 139 | } |
| donatien | 0:632c9925f013 | 140 | } |
| donatien | 0:632c9925f013 | 141 | |
| donatien | 0:632c9925f013 | 142 | void MySQLClient::resetTimeout() |
| donatien | 0:632c9925f013 | 143 | { |
| donatien | 0:632c9925f013 | 144 | m_watchdog.reset(); |
| donatien | 0:632c9925f013 | 145 | m_watchdog.start(); |
| donatien | 0:632c9925f013 | 146 | } |
| donatien | 0:632c9925f013 | 147 | |
| donatien | 0:632c9925f013 | 148 | void MySQLClient::init() |
| donatien | 0:632c9925f013 | 149 | { |
| donatien | 0:632c9925f013 | 150 | close(); //Remove previous elements |
| donatien | 0:632c9925f013 | 151 | if(!m_closed) //Already opened |
| donatien | 0:632c9925f013 | 152 | return; |
| donatien | 0:632c9925f013 | 153 | m_state = MYSQL_HANDSHAKE; |
| donatien | 0:632c9925f013 | 154 | m_pTCPSocket = new TCPSocket; |
| donatien | 0:632c9925f013 | 155 | m_pTCPSocket->setOnEvent(this, &MySQLClient::onTCPSocketEvent); |
| donatien | 0:632c9925f013 | 156 | m_closed = false; |
| donatien | 0:632c9925f013 | 157 | } |
| donatien | 0:632c9925f013 | 158 | |
| donatien | 0:632c9925f013 | 159 | void MySQLClient::close() |
| donatien | 0:632c9925f013 | 160 | { |
| donatien | 0:632c9925f013 | 161 | if(m_closed) |
| donatien | 0:632c9925f013 | 162 | return; |
| donatien | 0:632c9925f013 | 163 | m_state = MYSQL_CLOSED; |
| donatien | 0:632c9925f013 | 164 | m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else |
| donatien | 0:632c9925f013 | 165 | m_watchdog.stop(); //Stop timeout |
| donatien | 0:632c9925f013 | 166 | m_watchdog.reset(); |
| donatien | 0:632c9925f013 | 167 | m_pTCPSocket->resetOnEvent(); |
| donatien | 0:632c9925f013 | 168 | m_pTCPSocket->close(); |
| donatien | 0:632c9925f013 | 169 | delete m_pTCPSocket; |
| donatien | 0:632c9925f013 | 170 | m_pTCPSocket = NULL; |
| donatien | 0:632c9925f013 | 171 | if( m_pDnsReq ) |
| donatien | 0:632c9925f013 | 172 | { |
| donatien | 0:632c9925f013 | 173 | m_pDnsReq->close(); |
| donatien | 0:632c9925f013 | 174 | delete m_pDnsReq; |
| donatien | 0:632c9925f013 | 175 | m_pDnsReq = NULL; |
| donatien | 0:632c9925f013 | 176 | } |
| donatien | 0:632c9925f013 | 177 | } |
| donatien | 0:632c9925f013 | 178 | |
| donatien | 0:632c9925f013 | 179 | void MySQLClient::setup(Host& host, const string& user, const string& password, const string& db) //Setup connection, make DNS Req if necessary |
| donatien | 0:632c9925f013 | 180 | { |
| donatien | 0:632c9925f013 | 181 | init(); //Initialize client in known state, create socket |
| donatien | 0:632c9925f013 | 182 | resetTimeout(); |
| donatien | 0:632c9925f013 | 183 | m_host = host; |
| donatien | 0:632c9925f013 | 184 | if(!host.getPort()) |
| donatien | 0:632c9925f013 | 185 | host.setPort( MYSQL_PORT ); //Default port |
| donatien | 0:632c9925f013 | 186 | |
| donatien | 0:632c9925f013 | 187 | m_user = user; |
| donatien | 0:632c9925f013 | 188 | m_password = password; |
| donatien | 0:632c9925f013 | 189 | |
| donatien | 0:632c9925f013 | 190 | m_db = db; |
| donatien | 0:632c9925f013 | 191 | |
| donatien | 0:632c9925f013 | 192 | IpAddr ip; |
| donatien | 0:632c9925f013 | 193 | if( !host.getIp().isNull() ) |
| donatien | 0:632c9925f013 | 194 | { |
| donatien | 0:632c9925f013 | 195 | connect(); |
| donatien | 0:632c9925f013 | 196 | } |
| donatien | 0:632c9925f013 | 197 | else //Need to do a DNS Query... |
| donatien | 0:632c9925f013 | 198 | { |
| donatien | 0:632c9925f013 | 199 | DBG("\r\nDNS Query...\r\n"); |
| donatien | 0:632c9925f013 | 200 | m_pDnsReq = new DNSRequest(); |
| donatien | 0:632c9925f013 | 201 | m_pDnsReq->setOnReply(this, &MySQLClient::onDNSReply); |
| donatien | 0:632c9925f013 | 202 | m_pDnsReq->resolve(&m_host); |
| donatien | 0:632c9925f013 | 203 | DBG("\r\nMySQLClient : DNSRequest %p\r\n", m_pDnsReq); |
| donatien | 0:632c9925f013 | 204 | } |
| donatien | 0:632c9925f013 | 205 | } |
| donatien | 0:632c9925f013 | 206 | |
| donatien | 0:632c9925f013 | 207 | void MySQLClient::connect() //Start Connection |
| donatien | 0:632c9925f013 | 208 | { |
| donatien | 0:632c9925f013 | 209 | resetTimeout(); |
| donatien | 0:632c9925f013 | 210 | DBG("\r\nConnecting...\r\n"); |
| donatien | 0:632c9925f013 | 211 | m_pTCPSocket->connect(m_host); |
| donatien | 0:632c9925f013 | 212 | m_packetId = 0; |
| donatien | 0:632c9925f013 | 213 | } |
| donatien | 0:632c9925f013 | 214 | |
| donatien | 0:632c9925f013 | 215 | void MySQLClient::handleHandshake() |
| donatien | 0:632c9925f013 | 216 | { |
| donatien | 0:632c9925f013 | 217 | readData(); |
| donatien | 0:632c9925f013 | 218 | if( ! (( m_len > 1 ) && ( memchr( m_buf + 1, 0, m_len ) != NULL )) ) |
| donatien | 0:632c9925f013 | 219 | { |
| donatien | 0:632c9925f013 | 220 | DBG("Connected but could not find pcsz...\n"); |
| donatien | 0:632c9925f013 | 221 | onResult(MYSQL_PRTCL); |
| donatien | 0:632c9925f013 | 222 | return; |
| donatien | 0:632c9925f013 | 223 | } |
| donatien | 0:632c9925f013 | 224 | |
| donatien | 0:632c9925f013 | 225 | DBG("Connected to server: %d bytes read ; Protocol version %d, mysql-%s.\n", m_len, m_buf[0], &m_buf[1]); |
| donatien | 0:632c9925f013 | 226 | |
| donatien | 0:632c9925f013 | 227 | m_pPos = (byte*) memchr( (char*)(m_buf + 1), 0, m_len ) + 1; |
| donatien | 0:632c9925f013 | 228 | |
| donatien | 0:632c9925f013 | 229 | sendAuth(); |
| donatien | 0:632c9925f013 | 230 | } |
| donatien | 0:632c9925f013 | 231 | |
| donatien | 0:632c9925f013 | 232 | void MySQLClient::sendAuth() |
| donatien | 0:632c9925f013 | 233 | { |
| donatien | 0:632c9925f013 | 234 | if( m_len - (m_pPos - m_buf) != 44) |
| donatien | 0:632c9925f013 | 235 | { |
| donatien | 0:632c9925f013 | 236 | //We only support protocol >= mysql-4.1 |
| donatien | 0:632c9925f013 | 237 | DBG("Message after pcsz has wrong len (%d != 44)...\n", m_len - (m_pPos - m_buf)); |
| donatien | 0:632c9925f013 | 238 | onResult(MYSQL_PRTCL); |
| donatien | 0:632c9925f013 | 239 | return; |
| donatien | 0:632c9925f013 | 240 | } |
| donatien | 0:632c9925f013 | 241 | |
| donatien | 0:632c9925f013 | 242 | uint16_t serverFlags = *((uint16_t*)&m_pPos[13]); |
| donatien | 0:632c9925f013 | 243 | DBG("Server capabilities are %04X.\n", serverFlags); |
| donatien | 0:632c9925f013 | 244 | |
| donatien | 0:632c9925f013 | 245 | uint32_t clientFlags = CLIENT_CONNECT_WITH_DB | CLIENT_PROTOCOL_41 | CLIENT_SECURE_CONNECTION | CLIENT_INTERACTIVE;; |
| donatien | 0:632c9925f013 | 246 | |
| donatien | 0:632c9925f013 | 247 | //if(serverFlags & CLIENT_LONG_PASSWORD) |
| donatien | 0:632c9925f013 | 248 | |
| donatien | 0:632c9925f013 | 249 | DBG("Using auth 4.1+\n"); |
| donatien | 0:632c9925f013 | 250 | //Encrypt pw using scramble |
| donatien | 0:632c9925f013 | 251 | byte scramble[20+20]={0}; |
| donatien | 0:632c9925f013 | 252 | memcpy(scramble, m_pPos+4, 8); |
| donatien | 0:632c9925f013 | 253 | memcpy(scramble+8, m_pPos+31, 12); // *(m_pPos+43) == 0 (zero-terminated char*) |
| donatien | 0:632c9925f013 | 254 | |
| donatien | 0:632c9925f013 | 255 | byte stage1_hash[20] = {0}; |
| donatien | 0:632c9925f013 | 256 | sha1( (byte*)m_password.data(), m_password.length(), stage1_hash ); |
| donatien | 0:632c9925f013 | 257 | |
| donatien | 0:632c9925f013 | 258 | sha1( stage1_hash, 20, ((byte*)scramble + 20) ); |
| donatien | 0:632c9925f013 | 259 | |
| donatien | 0:632c9925f013 | 260 | byte token[20] = {0}; |
| donatien | 0:632c9925f013 | 261 | sha1( scramble, 40, token ); |
| donatien | 0:632c9925f013 | 262 | |
| donatien | 0:632c9925f013 | 263 | for(int i=0;i<20;i++) |
| donatien | 0:632c9925f013 | 264 | token[i] = token[i] ^ stage1_hash[i]; |
| donatien | 0:632c9925f013 | 265 | |
| donatien | 0:632c9925f013 | 266 | clientFlags |= CLIENT_LONG_PASSWORD; |
| donatien | 0:632c9925f013 | 267 | |
| donatien | 0:632c9925f013 | 268 | DBG("Building response\n"); |
| donatien | 0:632c9925f013 | 269 | //Build response |
| donatien | 0:632c9925f013 | 270 | |
| donatien | 0:632c9925f013 | 271 | //BE |
| donatien | 0:632c9925f013 | 272 | *((uint32_t*)&m_buf[0]) = htonl(clientFlags); |
| donatien | 0:632c9925f013 | 273 | *((uint32_t*)&m_buf[4]) = BUF_SIZE; //Max packets size |
| donatien | 0:632c9925f013 | 274 | m_buf[8] = 8; //latin1 charset |
| donatien | 0:632c9925f013 | 275 | memset((char*)(m_buf+9),0,23); |
| donatien | 0:632c9925f013 | 276 | strcpy((char*)(m_buf+32),m_user.c_str()); |
| donatien | 0:632c9925f013 | 277 | m_pPos = m_buf + 32 + m_user.length() + 1; |
| donatien | 0:632c9925f013 | 278 | m_pPos[0] = 20; |
| donatien | 0:632c9925f013 | 279 | memcpy((char*)&m_pPos[1],token,20); |
| donatien | 0:632c9925f013 | 280 | strcpy((char*)(m_pPos+21),m_db.c_str()); |
| donatien | 0:632c9925f013 | 281 | m_len = 32 + m_user.length() + 1 + 21 + m_db.length() + 1; |
| donatien | 0:632c9925f013 | 282 | |
| donatien | 0:632c9925f013 | 283 | //Save first part of scramble in case we need it again |
| donatien | 0:632c9925f013 | 284 | memcpy(&m_buf[BUF_SIZE-8], scramble, 8); |
| donatien | 0:632c9925f013 | 285 | |
| donatien | 0:632c9925f013 | 286 | m_state = MYSQL_AUTH; |
| donatien | 0:632c9925f013 | 287 | |
| donatien | 0:632c9925f013 | 288 | DBG("Writing data\n"); |
| donatien | 0:632c9925f013 | 289 | writeData(); |
| donatien | 0:632c9925f013 | 290 | } |
| donatien | 0:632c9925f013 | 291 | |
| donatien | 0:632c9925f013 | 292 | void MySQLClient::handleAuthResult() |
| donatien | 0:632c9925f013 | 293 | { |
| donatien | 0:632c9925f013 | 294 | readData(); |
| donatien | 0:632c9925f013 | 295 | if(m_len==1 && *m_buf==0xfe) |
| donatien | 0:632c9925f013 | 296 | { |
| donatien | 0:632c9925f013 | 297 | //Re-send auth using 4.0- auth |
| donatien | 0:632c9925f013 | 298 | sendAuth323(); |
| donatien | 0:632c9925f013 | 299 | return; |
| donatien | 0:632c9925f013 | 300 | } |
| donatien | 0:632c9925f013 | 301 | m_watchdog.stop(); //Stop timeout |
| donatien | 0:632c9925f013 | 302 | m_watchdog.reset(); |
| donatien | 0:632c9925f013 | 303 | if(m_len<2) |
| donatien | 0:632c9925f013 | 304 | { |
| donatien | 0:632c9925f013 | 305 | DBG("Response too short..\n"); |
| donatien | 0:632c9925f013 | 306 | onResult(MYSQL_PRTCL); |
| donatien | 0:632c9925f013 | 307 | return; |
| donatien | 0:632c9925f013 | 308 | } |
| donatien | 0:632c9925f013 | 309 | DBG("RC=%d ",m_buf[0]); |
| donatien | 0:632c9925f013 | 310 | if(m_buf[0]==0) |
| donatien | 0:632c9925f013 | 311 | { |
| donatien | 0:632c9925f013 | 312 | m_buf[m_len] = 0; |
| donatien | 0:632c9925f013 | 313 | m_pPos = m_buf + 1; |
| donatien | 0:632c9925f013 | 314 | m_pPos += m_buf[1] +1; |
| donatien | 0:632c9925f013 | 315 | m_pPos += m_pPos[0]; |
| donatien | 0:632c9925f013 | 316 | m_pPos += 1; |
| donatien | 0:632c9925f013 | 317 | DBG("(OK) : Server status %d, Message : %s\n", *((uint16_t*)&m_pPos[0]), m_pPos+4); |
| donatien | 0:632c9925f013 | 318 | onResult(MYSQL_OK); |
| donatien | 0:632c9925f013 | 319 | } |
| donatien | 0:632c9925f013 | 320 | else |
| donatien | 0:632c9925f013 | 321 | { |
| donatien | 0:632c9925f013 | 322 | m_buf[m_len] = 0; |
| donatien | 0:632c9925f013 | 323 | DBG("(Error %d) : %s\n", *((uint16_t*)&m_buf[1]), &m_buf[9]); //LE |
| donatien | 0:632c9925f013 | 324 | onResult(MYSQL_AUTHFAILED); |
| donatien | 0:632c9925f013 | 325 | return; |
| donatien | 0:632c9925f013 | 326 | } |
| donatien | 0:632c9925f013 | 327 | m_state = MYSQL_COMMANDS; |
| donatien | 0:632c9925f013 | 328 | } |
| donatien | 0:632c9925f013 | 329 | |
| donatien | 0:632c9925f013 | 330 | void MySQLClient::sendAuth323() |
| donatien | 0:632c9925f013 | 331 | { |
| donatien | 0:632c9925f013 | 332 | DBG("Using auth 4.0-\n"); |
| donatien | 0:632c9925f013 | 333 | byte scramble[8]={0}; |
| donatien | 0:632c9925f013 | 334 | |
| donatien | 0:632c9925f013 | 335 | memcpy(scramble, &m_buf[BUF_SIZE-8], 8); //Recover scramble |
| donatien | 0:632c9925f013 | 336 | |
| donatien | 0:632c9925f013 | 337 | //memcpy(scramble+8, m_pPos+31, 12); // *(m_pPos+43) == 0 (zero-terminated char*) |
| donatien | 0:632c9925f013 | 338 | |
| donatien | 0:632c9925f013 | 339 | byte token[9]={0}; |
| donatien | 0:632c9925f013 | 340 | |
| donatien | 0:632c9925f013 | 341 | scramble_323((char*)token, (const char*)scramble, m_password.c_str()); |
| donatien | 0:632c9925f013 | 342 | |
| donatien | 0:632c9925f013 | 343 | DBG("Building response\n"); |
| donatien | 0:632c9925f013 | 344 | //Build response |
| donatien | 0:632c9925f013 | 345 | |
| donatien | 0:632c9925f013 | 346 | memcpy((char*)m_buf,token,9); |
| donatien | 0:632c9925f013 | 347 | m_len = 9; |
| donatien | 0:632c9925f013 | 348 | |
| donatien | 0:632c9925f013 | 349 | #if 0 |
| donatien | 0:632c9925f013 | 350 | *((uint32_t*)&m_buf[0]) = htonl(clientFlags); |
| donatien | 0:632c9925f013 | 351 | *((uint32_t*)&m_buf[4]) = BUF_SIZE; //Max packets size |
| donatien | 0:632c9925f013 | 352 | m_buf[8] = 8; //latin1 charset |
| donatien | 0:632c9925f013 | 353 | memset((char*)(m_buf+9),0,23); |
| donatien | 0:632c9925f013 | 354 | strcpy((char*)(m_buf+32),m_user.c_str()); |
| donatien | 0:632c9925f013 | 355 | m_pPos = m_buf + 32 + m_user.length() + 1; |
| donatien | 0:632c9925f013 | 356 | m_pPos[0] = 8; |
| donatien | 0:632c9925f013 | 357 | memcpy((char*)&m_pPos[1],token+1,8); |
| donatien | 0:632c9925f013 | 358 | strcpy((char*)(m_pPos+9),m_db.c_str()); |
| donatien | 0:632c9925f013 | 359 | m_len = 32 + m_user.length() + 1 + 9 + m_db.length() + 1; |
| donatien | 0:632c9925f013 | 360 | #endif |
| donatien | 0:632c9925f013 | 361 | |
| donatien | 0:632c9925f013 | 362 | DBG("Writing data\n"); |
| donatien | 0:632c9925f013 | 363 | writeData(); |
| donatien | 0:632c9925f013 | 364 | } |
| donatien | 0:632c9925f013 | 365 | |
| donatien | 0:632c9925f013 | 366 | void MySQLClient::sendCommand(byte command, byte* arg, int len) |
| donatien | 0:632c9925f013 | 367 | { |
| donatien | 0:632c9925f013 | 368 | DBG("Sending command %d, payload of len %d\n", command, len); |
| donatien | 0:632c9925f013 | 369 | m_packetId=0;//Reset packet ID (New sequence) |
| donatien | 0:632c9925f013 | 370 | m_buf[0] = command; |
| donatien | 0:632c9925f013 | 371 | memcpy(&m_buf[1], arg, len); |
| donatien | 0:632c9925f013 | 372 | m_len = 1 + len; |
| donatien | 0:632c9925f013 | 373 | writeData(); |
| donatien | 0:632c9925f013 | 374 | m_watchdog.start(); |
| donatien | 0:632c9925f013 | 375 | } |
| donatien | 0:632c9925f013 | 376 | |
| donatien | 0:632c9925f013 | 377 | void MySQLClient::handleCommandResult() |
| donatien | 0:632c9925f013 | 378 | { |
| donatien | 0:632c9925f013 | 379 | readData(); |
| donatien | 0:632c9925f013 | 380 | m_watchdog.stop(); //Stop timeout |
| donatien | 0:632c9925f013 | 381 | m_watchdog.reset(); |
| donatien | 0:632c9925f013 | 382 | if(m_len<2) |
| donatien | 0:632c9925f013 | 383 | { |
| donatien | 0:632c9925f013 | 384 | DBG("Response too short..\n"); |
| donatien | 0:632c9925f013 | 385 | onResult(MYSQL_PRTCL); |
| donatien | 0:632c9925f013 | 386 | return; |
| donatien | 0:632c9925f013 | 387 | } |
| donatien | 0:632c9925f013 | 388 | DBG("RC=%d ",m_buf[0]); |
| donatien | 0:632c9925f013 | 389 | if(m_buf[0]==0) |
| donatien | 0:632c9925f013 | 390 | { |
| donatien | 0:632c9925f013 | 391 | DBG("(OK)\n"); |
| donatien | 0:632c9925f013 | 392 | onResult(MYSQL_OK); |
| donatien | 0:632c9925f013 | 393 | } |
| donatien | 0:632c9925f013 | 394 | else |
| donatien | 0:632c9925f013 | 395 | { |
| donatien | 0:632c9925f013 | 396 | m_buf[m_len] = 0; |
| donatien | 0:632c9925f013 | 397 | DBG("(SQL Error %d) : %s\n", *((uint16_t*)&m_buf[1]), &m_buf[9]); //LE |
| donatien | 0:632c9925f013 | 398 | onResult(MYSQL_SQL); |
| donatien | 0:632c9925f013 | 399 | return; |
| donatien | 0:632c9925f013 | 400 | } |
| donatien | 0:632c9925f013 | 401 | } |
| donatien | 0:632c9925f013 | 402 | |
| donatien | 0:632c9925f013 | 403 | void MySQLClient::readData() //Copy to buf |
| donatien | 0:632c9925f013 | 404 | { |
| donatien | 0:632c9925f013 | 405 | byte head[4]; |
| donatien | 0:632c9925f013 | 406 | int ret = m_pTCPSocket->recv((char*)head, 4); //Packet header |
| donatien | 0:632c9925f013 | 407 | m_len = *((uint16_t*)&head[0]); |
| donatien | 0:632c9925f013 | 408 | m_packetId = head[3]; |
| donatien | 0:632c9925f013 | 409 | DBG("Packet Id %d of length %d\n", head[3], m_len); |
| donatien | 0:632c9925f013 | 410 | m_packetId++; |
| donatien | 0:632c9925f013 | 411 | if(ret>0) |
| donatien | 0:632c9925f013 | 412 | ret = m_pTCPSocket->recv((char*)m_buf, m_len); |
| donatien | 0:632c9925f013 | 413 | if(ret < 0)//Error |
| donatien | 0:632c9925f013 | 414 | { |
| donatien | 0:632c9925f013 | 415 | onResult(MYSQL_CONN); |
| donatien | 0:632c9925f013 | 416 | return; |
| donatien | 0:632c9925f013 | 417 | } |
| donatien | 0:632c9925f013 | 418 | if(ret < m_len) |
| donatien | 0:632c9925f013 | 419 | { |
| donatien | 0:632c9925f013 | 420 | DBG("WARN: Incomplete packet\n"); |
| donatien | 0:632c9925f013 | 421 | } |
| donatien | 0:632c9925f013 | 422 | m_len = ret; |
| donatien | 0:632c9925f013 | 423 | } |
| donatien | 0:632c9925f013 | 424 | |
| donatien | 0:632c9925f013 | 425 | void MySQLClient::writeData() //Copy from buf |
| donatien | 0:632c9925f013 | 426 | { |
| donatien | 0:632c9925f013 | 427 | byte head[4] = { 0 }; |
| donatien | 0:632c9925f013 | 428 | *((uint16_t*)&head[0]) = m_len; |
| donatien | 0:632c9925f013 | 429 | head[3] = m_packetId; |
| donatien | 0:632c9925f013 | 430 | DBG("Packet Id %d\n", head[3]); |
| donatien | 0:632c9925f013 | 431 | m_packetId++; |
| donatien | 0:632c9925f013 | 432 | int ret = m_pTCPSocket->send((char*)head, 4); //Packet header |
| donatien | 0:632c9925f013 | 433 | if(ret>0) |
| donatien | 0:632c9925f013 | 434 | ret = m_pTCPSocket->send((char*)m_buf, m_len); |
| donatien | 0:632c9925f013 | 435 | if(ret < 0)//Error |
| donatien | 0:632c9925f013 | 436 | { |
| donatien | 0:632c9925f013 | 437 | onResult(MYSQL_CONN); |
| donatien | 0:632c9925f013 | 438 | return; |
| donatien | 0:632c9925f013 | 439 | } |
| donatien | 0:632c9925f013 | 440 | m_len = 0;//FIXME... incomplete packets handling |
| donatien | 0:632c9925f013 | 441 | } |
| donatien | 0:632c9925f013 | 442 | |
| donatien | 0:632c9925f013 | 443 | void MySQLClient::onTCPSocketEvent(TCPSocketEvent e) |
| donatien | 0:632c9925f013 | 444 | { |
| donatien | 0:632c9925f013 | 445 | DBG("\r\nEvent %d in MySQLClient::onTCPSocketEvent()\r\n", e); |
| donatien | 0:632c9925f013 | 446 | |
| donatien | 0:632c9925f013 | 447 | if(m_closed) |
| donatien | 0:632c9925f013 | 448 | { |
| donatien | 0:632c9925f013 | 449 | DBG("\r\nWARN: Discarded\r\n"); |
| donatien | 0:632c9925f013 | 450 | return; |
| donatien | 0:632c9925f013 | 451 | } |
| donatien | 0:632c9925f013 | 452 | |
| donatien | 0:632c9925f013 | 453 | switch(e) |
| donatien | 0:632c9925f013 | 454 | { |
| donatien | 0:632c9925f013 | 455 | case TCPSOCKET_READABLE: //Incoming data |
| donatien | 0:632c9925f013 | 456 | resetTimeout(); |
| donatien | 0:632c9925f013 | 457 | if(m_state == MYSQL_HANDSHAKE) |
| donatien | 0:632c9925f013 | 458 | handleHandshake(); |
| donatien | 0:632c9925f013 | 459 | else if(m_state == MYSQL_AUTH) |
| donatien | 0:632c9925f013 | 460 | handleAuthResult(); |
| donatien | 0:632c9925f013 | 461 | else if(m_state == MYSQL_COMMANDS) |
| donatien | 0:632c9925f013 | 462 | handleCommandResult(); |
| donatien | 0:632c9925f013 | 463 | break; |
| donatien | 0:632c9925f013 | 464 | case TCPSOCKET_WRITEABLE: //We can send data |
| donatien | 0:632c9925f013 | 465 | resetTimeout(); |
| donatien | 0:632c9925f013 | 466 | break; |
| donatien | 0:632c9925f013 | 467 | case TCPSOCKET_CONNECTED: //Connected, wait for handshake packet |
| donatien | 0:632c9925f013 | 468 | resetTimeout(); |
| donatien | 0:632c9925f013 | 469 | break; |
| donatien | 0:632c9925f013 | 470 | case TCPSOCKET_CONTIMEOUT: |
| donatien | 0:632c9925f013 | 471 | case TCPSOCKET_CONRST: |
| donatien | 0:632c9925f013 | 472 | case TCPSOCKET_CONABRT: |
| donatien | 0:632c9925f013 | 473 | case TCPSOCKET_ERROR: |
| donatien | 0:632c9925f013 | 474 | DBG("\r\nConnection error.\r\n"); |
| donatien | 0:632c9925f013 | 475 | onResult(MYSQL_CONN); |
| donatien | 0:632c9925f013 | 476 | case TCPSOCKET_DISCONNECTED: |
| donatien | 0:632c9925f013 | 477 | //There might still be some data available for reading |
| donatien | 0:632c9925f013 | 478 | //So if we are in a reading state, do not close the socket yet |
| donatien | 0:632c9925f013 | 479 | if(m_state != MYSQL_CLOSED) |
| donatien | 0:632c9925f013 | 480 | { |
| donatien | 0:632c9925f013 | 481 | onResult(MYSQL_CONN); |
| donatien | 0:632c9925f013 | 482 | } |
| donatien | 0:632c9925f013 | 483 | DBG("\r\nConnection closed by remote host.\r\n"); |
| donatien | 0:632c9925f013 | 484 | break; |
| donatien | 0:632c9925f013 | 485 | } |
| donatien | 0:632c9925f013 | 486 | } |
| donatien | 0:632c9925f013 | 487 | |
| donatien | 0:632c9925f013 | 488 | void MySQLClient::onDNSReply(DNSReply r) |
| donatien | 0:632c9925f013 | 489 | { |
| donatien | 0:632c9925f013 | 490 | if(m_closed) |
| donatien | 0:632c9925f013 | 491 | { |
| donatien | 0:632c9925f013 | 492 | DBG("\r\nWARN: Discarded\r\n"); |
| donatien | 0:632c9925f013 | 493 | return; |
| donatien | 0:632c9925f013 | 494 | } |
| donatien | 0:632c9925f013 | 495 | |
| donatien | 0:632c9925f013 | 496 | if( r != DNS_FOUND ) |
| donatien | 0:632c9925f013 | 497 | { |
| donatien | 0:632c9925f013 | 498 | DBG("\r\nCould not resolve hostname.\r\n"); |
| donatien | 0:632c9925f013 | 499 | onResult(MYSQL_DNS); |
| donatien | 0:632c9925f013 | 500 | return; |
| donatien | 0:632c9925f013 | 501 | } |
| donatien | 0:632c9925f013 | 502 | |
| donatien | 0:632c9925f013 | 503 | DBG("\r\nDNS Resolved to %d.%d.%d.%d.\r\n",m_host.getIp()[0],m_host.getIp()[1],m_host.getIp()[2],m_host.getIp()[3]); |
| donatien | 0:632c9925f013 | 504 | //If no error, m_host has been updated by m_pDnsReq so we're set to go ! |
| donatien | 0:632c9925f013 | 505 | m_pDnsReq->close(); |
| donatien | 0:632c9925f013 | 506 | delete m_pDnsReq; |
| donatien | 0:632c9925f013 | 507 | m_pDnsReq = NULL; |
| donatien | 0:632c9925f013 | 508 | connect(); |
| donatien | 0:632c9925f013 | 509 | } |
| donatien | 0:632c9925f013 | 510 | |
| donatien | 0:632c9925f013 | 511 | void MySQLClient::onResult(MySQLResult r) //Called when exchange completed or on failure |
| donatien | 0:632c9925f013 | 512 | { |
| donatien | 0:632c9925f013 | 513 | if(m_pCbItem && m_pCbMeth) |
| donatien | 0:632c9925f013 | 514 | (m_pCbItem->*m_pCbMeth)(r); |
| donatien | 0:632c9925f013 | 515 | else if(m_pCb) |
| donatien | 0:632c9925f013 | 516 | m_pCb(r); |
| donatien | 0:632c9925f013 | 517 | |
| donatien | 0:632c9925f013 | 518 | if( (r==MYSQL_DNS) || (r==MYSQL_PRTCL) || (r==MYSQL_AUTHFAILED) || (r==MYSQL_TIMEOUT) || (r==MYSQL_CONN) ) //Fatal error, close connection |
| donatien | 0:632c9925f013 | 519 | close(); |
| donatien | 0:632c9925f013 | 520 | } |
| donatien | 0:632c9925f013 | 521 | |
| donatien | 0:632c9925f013 | 522 | void MySQLClient::onTimeout() //Connection has timed out |
| donatien | 0:632c9925f013 | 523 | { |
| donatien | 0:632c9925f013 | 524 | DBG("\r\nTimed out.\n"); |
| donatien | 0:632c9925f013 | 525 | onResult(MYSQL_DNS); |
| donatien | 0:632c9925f013 | 526 | close(); |
| donatien | 0:632c9925f013 | 527 | } |