Compiles
authorbdemsky <bdemsky@uci.edu>
Fri, 2 Mar 2018 08:32:08 +0000 (00:32 -0800)
committerbdemsky <bdemsky@uci.edu>
Fri, 2 Mar 2018 08:32:08 +0000 (00:32 -0800)
version2/src/C/CloudComm.cc
version2/src/C/CloudComm.h
version2/src/C/Error.h
version2/src/C/Table.cc
version2/src/C/array.h

index 06d6a89..4e4000f 100644 (file)
@@ -6,8 +6,11 @@
 #include "URL.h"
 #include "Mac.h"
 #include "Table.h"
+#include "Slot.h"
 #include "Crypto.h"
 #include "ByteBuffer.h"
+#include <sys/socket.h>
+#include <unistd.h>
 
 /**
  * Empty Constructor needed for child class.
@@ -23,7 +26,9 @@ CloudComm::CloudComm() :
        listeningPort(-1),
        localServerThread(NULL),
        doEnd(false),
-       timer(TimingSingleton_getInstance())
+       timer(TimingSingleton_getInstance()),
+       getslot(new Array<char>("getslot", 7)),
+       putslot(new Array<char>("putslot", 7))
 {
 }
 
@@ -118,6 +123,26 @@ int openURL(IoTString *url, bool isPost) {
        return 0;
 }
 
+int createSocket(IoTString *host, int port) {
+       return 0;
+}
+
+int createSocket(int port) {
+       return 0;
+}
+
+int acceptSocket(int socket) {
+       return 0;
+}
+
+void writeSocketData(int fd, Array<char> *data) {}
+
+void writeSocketInt(int fd, int value) {}
+
+int readSocketInt(int fd) {return 0;}
+
+void readSocketData(int fd, Array<char> *data) {}
+
 void writeURLData(int fd, Array<char> *data) {
 }
 
@@ -198,17 +223,12 @@ bool CloudComm::getSalt() {
                if (responsecode != HttpURLConnection_HTTP_OK) {
                        throw new Error("Invalid response");
                }
-               if (is->available() > 0) {
-                       int salt_length = readURLInt(fd);
-                       Array<char> *tmp = new Array<char>(salt_length);
-                       readURLData(fd, tmp);
-                       salt = tmp;
-                       timer->endTime();
-                       return true;
-               } else {
-                       timer->endTime();
-                       return false;
-               }
+               int salt_length = readURLInt(fd);
+               Array<char> *tmp = new Array<char>(salt_length);
+               readURLData(fd, tmp);
+               salt = tmp;
+               timer->endTime();
+               return true;
        } catch (SocketTimeoutException *e) {
                timer->endTime();
                throw new ServerException("getSalt failed", ServerException_TypeInputTimeout);
@@ -225,12 +245,17 @@ Array<char> *CloudComm::createIV(int64_t machineId, int64_t localSequenceNumber)
        return buffer->array();
 }
 
+Array<char> *AESEncrypt(Array<char> * ivBytes, AESKey * key, Array<char> * data) {
+       return NULL;
+}
+
+Array<char> *AESDecrypt(Array<char> * ivBytes, AESKey * key, Array<char> * data) {
+       return NULL;
+}
+
 Array<char> *CloudComm::encryptSlotAndPrependIV(Array<char> *rawData, Array<char> *ivBytes) {
        try {
-               IvParameterSpec *ivSpec = new IvParameterSpec(ivBytes);
-               Cipher *cipher = Cipher_getInstance("AES/CTR/NoPadding");
-               cipher->init(Cipher_ENCRYPT_MODE, key, ivSpec);
-               Array<char> *encryptedBytes = cipher->doFinal(rawData);
+               Array<char> *encryptedBytes = AESEncrypt(ivBytes, key, rawData);
                Array<char> *chars = new Array<char>(encryptedBytes->length() + CloudComm_IV_SIZE);
                System_arraycopy(ivBytes, 0, chars, 0, ivBytes->length());
                System_arraycopy(encryptedBytes, 0, chars, CloudComm_IV_SIZE, encryptedBytes->length());
@@ -247,10 +272,7 @@ Array<char> *CloudComm::stripIVAndDecryptSlot(Array<char> *rawData) {
                Array<char> *encryptedBytes = new Array<char>(rawData->length() - CloudComm_IV_SIZE);
                System_arraycopy(rawData, 0, ivBytes, 0, CloudComm_IV_SIZE);
                System_arraycopy(rawData, CloudComm_IV_SIZE, encryptedBytes, 0, encryptedBytes->length());
-               IvParameterSpec *ivSpec = new IvParameterSpec(ivBytes);
-               Cipher *cipher = Cipher_getInstance("AES/CTR/NoPadding");
-               cipher->init(Cipher_DECRYPT_MODE, key, ivSpec);
-               return cipher->doFinal(encryptedBytes);
+               return AESDecrypt(ivBytes, key, encryptedBytes);
        } catch (Exception *e) {
                throw new Error("Failed To Decrypt");
        }
@@ -295,15 +317,15 @@ Array<Slot *> *CloudComm::putSlot(Slot *slot, int max) {
                readURLData(fd, resptype);
                timer->endTime();
 
-               if (resptype->equals("getslot"->getBytes())) {
+               if (resptype->equals(getslot)) {
                        return processSlots(fd);
-               } else if (resptype->equals("putslot"->getBytes())) {
+               } else if (resptype->equals(putslot)) {
                        return NULL;
                } else
                        throw new Error("Bad response to putslot");
        } catch (SocketTimeoutException *e) {
                timer->endTime();
-               throw new ServerException("putSlot failed", ServerException->TypeInputTimeout);
+               throw new ServerException("putSlot failed", ServerException_TypeInputTimeout);
        } catch (Exception *e) {
                throw new Error("putSlot failed");
        }
@@ -314,6 +336,7 @@ Array<Slot *> *CloudComm::putSlot(Slot *slot, int max) {
  * sequencenumber or newer->
  */
 Array<Slot *> *CloudComm::getSlots(int64_t sequencenumber) {
+       int fd = -1;
        try {
                if (salt == NULL) {
                        if (!getSalt()) {
@@ -324,12 +347,7 @@ Array<Slot *> *CloudComm::getSlots(int64_t sequencenumber) {
 
                IoTString *url = buildRequest(false, sequencenumber, 0);
                timer->startTime();
-               URLConnection *con = url->openConnection();
-               HttpURLConnection *http = (HttpURLConnection *) con;
-               http->setRequestMethod("POST");
-               http->setConnectTimeout(CloudComm_TIMEOUT_MILLIS);
-               http->setReadTimeout(CloudComm_TIMEOUT_MILLIS);
-               http->connect();
+               fd = openURL(url, true);
                timer->endTime();
        } catch (SocketTimeoutException *e) {
                timer->endTime();
@@ -347,10 +365,10 @@ Array<Slot *> *CloudComm::getSlots(int64_t sequencenumber) {
                Array<char> *resptype = new Array<char>(7);
                readURLData(fd, resptype);
                timer->endTime();
-               if (!resptype->equals("getslot"->getBytes()))
-                       throw new Error("Bad Response: " + new String(resptype));
+               if (!resptype->equals(getslot))
+                       throw new Error("Bad Response: ");
 
-               return processSlots(dis);
+               return processSlots(fd);
        } catch (SocketTimeoutException *e) {
                timer->endTime();
                throw new ServerException("getSlots failed", ServerException_TypeInputTimeout);
@@ -372,14 +390,14 @@ Array<Slot *> *CloudComm::processSlots(int fd) {
                sizesofslots->set(i, readURLInt(fd));
        for (int i = 0; i < numberofslots; i++) {
                Array<char> *rawData = new Array<char>(sizesofslots->get(i));
-               readURLData(rawData);
+               readURLData(fd, rawData);
                Array<char> *data = stripIVAndDecryptSlot(rawData);
                slots->set(i, Slot_decode(table, data, mac));
        }
        return slots;
 }
 
-Array<char> *CloudComm::sendLocalData(Array<char> *sendData, int64_t localSequenceNumber, String host, int port) {
+Array<char> *CloudComm::sendLocalData(Array<char> *sendData, int64_t localSequenceNumber, IoTString * host, int port) {
        if (salt == NULL)
                return NULL;
        try {
@@ -395,25 +413,21 @@ Array<char> *CloudComm::sendLocalData(Array<char> *sendData, int64_t localSequen
                Array<char> *encryptedData = encryptSlotAndPrependIV(totalData, iv);
 
                // Open a TCP socket connection to a local device
-               Socket *socket = new Socket(host, port);
-               socket->setReuseAddress(true);
-               DataOutputStream *output = new DataOutputStream(socket->getOutputStream());
-               DataInputStream *input = new DataInputStream(socket->getInputStream());
+               int socket = createSocket(host, port);
 
                timer->startTime();
                // Send data to output (length of data, the data)
-               output->writeInt(encryptedData->length());
-               output->write(encryptedData, 0, encryptedData->length());
-               output->flush();
+               writeSocketInt(socket, encryptedData->length());
+               writeSocketData(socket, encryptedData);
 
-               int lengthOfReturnData = input->readInt();
+               int lengthOfReturnData = readSocketInt(socket);
                Array<char> *returnData = new Array<char>(lengthOfReturnData);
-               input->readFully(returnData);
+               readSocketData(socket, returnData);
                timer->endTime();
                returnData = stripIVAndDecryptSlot(returnData);
 
                // We are done with this socket
-               socket->close();
+               close(socket);
                mac->update(returnData, 0, returnData->length() - CloudComm_HMAC_SIZE);
                Array<char> *realmac = mac->doFinal();
                Array<char> *recmac = new Array<char>(CloudComm_HMAC_SIZE);
@@ -434,13 +448,11 @@ Array<char> *CloudComm::sendLocalData(Array<char> *sendData, int64_t localSequen
 }
 
 void CloudComm::localServerWorkerFunction() {
-       ServerSocket *inputSocket = NULL;
+       int inputSocket = -1;
 
        try {
                // Local server socket
-               inputSocket = new ServerSocket(listeningPort);
-               inputSocket->setReuseAddress(true);
-               inputSocket->setSoTimeout(CloudComm_TIMEOUT_MILLIS);
+               inputSocket = createSocket(listeningPort);
        } catch (Exception *e) {
                throw new Error("Local server setup failure...");
        }
@@ -448,14 +460,12 @@ void CloudComm::localServerWorkerFunction() {
        while (!doEnd) {
                try {
                        // Accept incoming socket
-                       Socket *socket = inputSocket->accept();
-                       DataInputStream *input = new DataInputStream(socket->getInputStream());
-                       DataOutputStream *output = new DataOutputStream(socket->getOutputStream());
+                       int socket = acceptSocket(inputSocket);
 
                        // Get the encrypted data from the server
-                       int dataSize = input->readInt();
+                       int dataSize = readSocketInt(socket);
                        Array<char> *readData = new Array<char>(dataSize);
-                       input->readFully(readData);
+                       readSocketData(socket, readData);
                        timer->endTime();
 
                        // Decrypt the data
@@ -485,26 +495,23 @@ void CloudComm::localServerWorkerFunction() {
 
                        timer->startTime();
                        // Send data to output (length of data, the data)
-                       output->writeInt(encryptedData->length());
-                       output->write(encryptedData, 0, encryptedData->length());
-                       output->flush();
-
-                       // close the socket
-                       socket->close();
+                       writeSocketInt(socket, encryptedData->length());
+                       writeSocketData(socket, encryptedData);
+                       close(socket);
                } catch (Exception *e) {
                }
        }
 
-       if (inputSocket != NULL) {
+       if (inputSocket != -1) {
                try {
-                       inputSocket->close();
+                       close(inputSocket);
                } catch (Exception *e) {
                        throw new Error("Local server close failure...");
                }
        }
 }
 
-void CloudComm::close() {
+void CloudComm::closeCloud() {
        doEnd = true;
 
        if (localServerThread != NULL) {
index 2f82508..08fba52 100644 (file)
@@ -32,7 +32,9 @@ private:
        pthread_t localServerThread;
        bool doEnd;
        TimingSingleton *timer;
-
+       Array<char> *getslot;
+       Array<char> *putslot;
+       
        /**
         * Generates Key from password.
         */
@@ -91,7 +93,7 @@ public:
         */
 
        Array<char> *sendLocalData(Array<char> *sendData, int64_t localSequenceNumber, IoTString *host, int port);
-       void close();
+       void closeCloud();
        void localServerWorkerFunction();
 };
 #endif
index 61f1b6e..4d12c16 100644 (file)
@@ -5,6 +5,11 @@ public:
        Error(const char *msg) {}
 };
 
+class SocketTimeoutException {
+ public:
+ private:
+};
+
 class Exception {
 public:
        Exception(const char *msg) {}
@@ -12,6 +17,7 @@ public:
 
 #define ServerException_TypeInputTimeout 1
 #define ServerException_TypeConnectTimeout 2
+#define ServerException_TypeSalt 3
 
 class ServerException {
 public:
index b43c93d..d3b7e53 100644 (file)
@@ -246,7 +246,7 @@ int64_t Table::getArbitrator(IoTString *key) {
 }
 
 void Table::close() {
-       cloud->close();
+       cloud->closeCloud();
 }
 
 IoTString *Table::getCommitted(IoTString *key)  {
index e2e2a67..996a912 100644 (file)
@@ -19,7 +19,7 @@ public:
        {
        }
 
-       Array(type *_array, uint _size) :
+       Array(const type *_array, uint _size) :
                array((type *) ourmalloc(sizeof(type) * _size)),
                size(_size) {
                memcpy(array, _array, _size * sizeof(type));