Update version

.gitignore

@@ -6,4 +6,5 @@ lib
 utils/acsmdownloader
 utils/adept_activate
 utils/adept_remove
-.adept
+utils/adept_loan_mgt
+.adept*

Makefile

@@ -36,7 +36,7 @@ TARGETDIR   := bin
 SRCEXT      := cpp
 OBJEXT      := o
 
-SOURCES      = src/libgourou.cpp src/user.cpp src/device.cpp src/fulfillment_item.cpp src/bytearray.cpp src/pugixml.cpp
+SOURCES      = src/libgourou.cpp src/user.cpp src/device.cpp src/fulfillment_item.cpp src/loan_token.cpp src/bytearray.cpp src/pugixml.cpp
 OBJECTS     := $(patsubst $(SRCDIR)/%,$(BUILDDIR)/%,$(SOURCES:.$(SRCEXT)=.$(OBJEXT)))
 
 all: lib obj $(TARGETS)

README.md

@@ -16,7 +16,7 @@ Main fucntions to use from gourou::DRMProcessor are :
   * Create a new device : _createDRMProcessor()_
   * Register a new device : _signIn()_ and _activateDevice()_
   * Remove DRM : _removeDRM()_
-
+  * Return loaned book : _returnLoan()_
 
 You can import configuration from (at least) :
 
@@ -39,8 +39,7 @@ For libgourou :
 
 For utils :
 
-  * QT5Core
+  * libcurl
-  * QT5Network
   * OpenSSL
   * libzip
 
@@ -92,6 +91,16 @@ To remove ADEPT DRM :
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
     ./utils/adept_remove -f <encryptedFile>
 
+To list loaned books :
+
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
+    ./utils/adept_loan_mgt [-l]
+
+To return a loaned book :
+
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
+    ./utils/adept_loan_mgt -r <id>
+
 You can get utils full options description with -h or --help switch
 
 

include/drmprocessorclient.h

@@ -98,10 +98,12 @@ namespace gourou
 	 * @param POSTData        POST data if needed, if not set, a GET request is done
 	 * @param contentType     Optional content type of POST Data
 	 * @param responseHeaders Optional Response headers of HTTP request
+	 * @param fd              Optional file descriptor to write request result
+	 * @param resume          false if target file should be truncated, true to try resume download (works only in combination with a valid fd)
 	 *
 	 * @return data of HTTP response
 	 */
-	virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0) = 0;
+	virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0, int fd=0, bool resume=false) = 0;
     };
 
     class RSAInterface

include/fulfillment_item.h

@@ -20,7 +20,7 @@
 #ifndef _FULFILLMENT_ITEM_H_
 #define _FULFILLMENT_ITEM_H_
 
-#include "bytearray.h"
+#include "loan_token.h"
 
 #include <pugixml.hpp>
 
@@ -42,6 +42,8 @@ namespace gourou
 	 */
 	FulfillmentItem(pugi::xml_document& doc, User* user);
 
+	~FulfillmentItem();
+
 	/**
 	 * @brief Return metadata value from ACSM metadata section
 	 *
@@ -64,12 +66,18 @@ namespace gourou
 	 */
 	std::string getResource();
 
+	/**
+	 * @brief Return loan token if there is one
+	 */
+	LoanToken* getLoanToken();
+
     private:
 	pugi::xml_document fulfillDoc;
 	pugi::xml_node metadatas;
 	pugi::xml_document rights;
 	std::string downloadURL;
 	std::string resource;
+	LoanToken* loanToken;
 	
 	void buildRights(const pugi::xml_node& licenseToken, User* user);
     };

include/libgourou.h

@@ -40,7 +40,7 @@
 #define ACS_SERVER              "http://adeactivate.adobe.com/adept"
 #endif
 
-#define LIBGOUROU_VERSION       "0.5.3"
+#define LIBGOUROU_VERSION       "0.7.1"
 
 namespace gourou
 {
@@ -81,10 +81,11 @@ namespace gourou
 	 *
 	 * @param item            Item from fulfill() method
 	 * @param path            Output file path 
+	 * @param resume          false if target file should be truncated, true to try resume download
 	 *
 	 * @return Type of downloaded item
 	 */
-	ITEM_TYPE download(FulfillmentItem* item, std::string path);
+	ITEM_TYPE download(FulfillmentItem* item, std::string path, bool resume=false);
 
 	/**
 	 * @brief SignIn into ACS Server (required to activate device)
@@ -99,6 +100,14 @@ namespace gourou
 	 */
 	void activateDevice();
 
+	/**
+	 * @brief Return loaned book to server
+	 *
+	 * @param loanID          Loan ID received during fulfill
+	 * @param operatorURL     URL of operator that loans this book
+	 */
+	void returnLoan(const std::string& loanID, const std::string& operatorURL);
+	
 	/**
 	 * @brief Create a new ADEPT environment (device.xml, devicesalt and activation.xml).
 	 *
@@ -130,14 +139,16 @@ namespace gourou
 	/**
 	 * @brief Send HTTP (GET or POST) request
 	 *
-	 * @param URL            HTTP URL
+	 * @param URL             HTTP URL
-	 * @param POSTData       POST data if needed, if not set, a GET request is done
+	 * @param POSTData        POST data if needed, if not set, a GET request is done
-	 * @param contentType    Optional content type of POST Data
+	 * @param contentType     Optional content type of POST Data
 	 * @param responseHeaders Optional Response headers of HTTP request
+	 * @param fd              Optional File descriptor to write received data
+	 * @param resume          false if target file should be truncated, true to try resume download (works only in combination of a valid fd)
 	 *
 	 * @return data of HTTP response
 	 */
-	ByteArray sendRequest(const std::string& URL, const std::string& POSTData=std::string(), const char* contentType=0, std::map<std::string, std::string>* responseHeaders=0);
+	ByteArray sendRequest(const std::string& URL, const std::string& POSTData=std::string(), const char* contentType=0, std::map<std::string, std::string>* responseHeaders=0, int fd=0, bool resume=false);
 
 	/**
 	 * @brief Send HTTP POST request to URL with document as POSTData
@@ -207,7 +218,7 @@ namespace gourou
 	void pushTag(void* sha_ctx, uint8_t tag);
 	void hashNode(const pugi::xml_node& root, void *sha_ctx, std::map<std::string,std::string> nsHash);
 	void hashNode(const pugi::xml_node& root, unsigned char* sha_out);
-	std::string signNode(const pugi::xml_node& rootNode);
+	void signNode(pugi::xml_node& rootNode);
 	void addNonce(pugi::xml_node& root);
 	void buildAuthRequest(pugi::xml_document& authReq);
 	void buildInitLicenseServiceRequest(pugi::xml_document& initLicReq, std::string operatorURL);
@@ -215,6 +226,7 @@ namespace gourou
 	void operatorAuth(std::string operatorURL);
 	void buildFulfillRequest(pugi::xml_document& acsmDoc, pugi::xml_document& fulfillReq);
 	void buildActivateReq(pugi::xml_document& activateReq);
+	void buildReturnReq(pugi::xml_document& returnReq, const std::string& loanID, const std::string& operatorURL);
 	ByteArray sendFulfillRequest(const pugi::xml_document& document, const std::string& url);
 	void buildSignInRequest(pugi::xml_document& signInRequest, const std::string& adobeID, const std::string& adobePassword, const std::string& authenticationCertificate);
 	void fetchLicenseServiceCertificate(const std::string& licenseURL,

include/libgourou_common.h

@@ -55,7 +55,8 @@ namespace gourou
 	GOUROU_INVALID_CLIENT,
 	GOUROU_TAG_NOT_FOUND,
 	GOUROU_ADEPT_ERROR,
-	GOUROU_FILE_ERROR
+	GOUROU_FILE_ERROR,
+	GOUROU_INVALID_PROPERTY
     };
 
     enum FULFILL_ERROR {
@@ -96,7 +97,8 @@ namespace gourou
     };
 
     enum FULFILL_ITEM_ERROR {
-	FFI_INVALID_FULFILLMENT_DATA = 0x4000
+	FFI_INVALID_FULFILLMENT_DATA = 0x4000,
+	FFI_INVALID_LOAN_TOKEN
     };
     
     enum CLIENT_ERROR {
@@ -111,7 +113,8 @@ namespace gourou
 	CLIENT_ZIP_ERROR,
 	CLIENT_GENERIC_EXCEPTION,
 	CLIENT_NETWORK_ERROR,
-	CLIENT_INVALID_PKCS8
+	CLIENT_INVALID_PKCS8,
+	CLIENT_FILE_ERROR
     };
 
     enum DRM_REMOVAL_ERROR {
@@ -285,15 +288,33 @@ namespace gourou
 	node.append_child(pugi::node_pcdata).set_value(value.c_str());
     }
 
+    /**
+     * @brief Open a file descriptor on path. If it already exists and truncate == true, it's truncated
+     *
+     * @return Created fd, must be closed
+     */
+    static inline int createNewFile(std::string path, bool truncate=true)
+    {
+	int options = O_CREAT|O_WRONLY;
+	if (truncate)
+	    options |= O_TRUNC;
+	else
+	    options |= O_APPEND;
+
+	int fd = open(path.c_str(), options, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
+
+	if (fd <= 0)
+	    EXCEPTION(GOUROU_FILE_ERROR, "Unable to create " << path);
+
+	return fd;
+    }
+    
     /**
      * @brief Write data in a file. If it already exists, it's truncated
      */
     static inline void writeFile(std::string path, const unsigned char* data, unsigned int length)
     {
-	int fd = open(path.c_str(), O_CREAT|O_WRONLY|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
+	int fd = createNewFile(path);
-
-	if (fd <= 0)
-	    EXCEPTION(GOUROU_FILE_ERROR, "Unable to create " << path);
 	
 	if (write(fd, data, length) != length)
 	    EXCEPTION(GOUROU_FILE_ERROR, "Write error for file " << path);

include/loan_token.h

@@ -0,0 +1,54 @@
+/*
+  Copyright 2022 Grégory Soutadé
+
+  This file is part of libgourou.
+
+  libgourou is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  libgourou is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with libgourou. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _LOAN_TOKEN_H_
+#define _LOAN_TOKEN_H_
+
+#include <map>
+
+#include <pugixml.hpp>
+
+namespace gourou
+{
+    /**
+     * @brief This class is a container for a fulfillment object
+     */
+    class LoanToken
+    {
+    public:
+	/**
+	 * @brief Main constructor. Not to be called by user
+	 *
+	 * @param doc   Fulfill reply
+	 */
+	LoanToken(pugi::xml_document& doc);
+
+	/**
+	 * @brief Get a property (id, operatorURL, validity)
+	 */
+	std::string getProperty(const std::string& property, const std::string& _default=std::string(""));
+	std::string operator[](const std::string& property);
+
+    private:
+	std::map<std::string, std::string> properties;
+    };
+}
+
+
+#endif

src/fulfillment_item.cpp

@@ -24,7 +24,7 @@
 namespace gourou
 {
     FulfillmentItem::FulfillmentItem(pugi::xml_document& doc, User* user)
-	: fulfillDoc()
+	: fulfillDoc(), loanToken(0)
     {
 	fulfillDoc.reset(doc); /* We must keep a copy */
 	metadatas = fulfillDoc.select_node("//metadata").node();
@@ -50,6 +50,23 @@ namespace gourou
 	    EXCEPTION(FFI_INVALID_FULFILLMENT_DATA, "Any license token in document");
 	
 	buildRights(licenseToken, user);
+
+	node = doc.select_node("/envelope/fulfillmentResult/returnable").node();
+	try
+	{
+	    if (node && node.first_child().value() == std::string("true"))
+		loanToken = new LoanToken(doc);
+	}
+	catch(std::exception& e)
+	{
+	    GOUROU_LOG(ERROR, "Book is returnable, but contains invalid loan token");
+	    GOUROU_LOG(ERROR, e.what());
+	}
+    }
+
+    FulfillmentItem::~FulfillmentItem()
+    {
+	if (loanToken) delete loanToken;
     }
     
     void FulfillmentItem::buildRights(const pugi::xml_node& licenseToken, User* user)
@@ -103,4 +120,9 @@ namespace gourou
     {
 	return resource;
     }
+
+    LoanToken* FulfillmentItem::getLoanToken()
+    {
+	return loanToken;
+    }
 }

src/libgourou.cpp

@@ -236,7 +236,7 @@ namespace gourou
 	}
     }
 
-    std::string DRMProcessor::signNode(const pugi::xml_node& rootNode)
+    void DRMProcessor::signNode(pugi::xml_node& rootNode)
     {
 	// Compute hash
 	unsigned char sha_out[SHA1_LEN];
@@ -260,9 +260,8 @@ namespace gourou
 	    printf("\n");
 	}
 
-	ByteArray signature(res, sizeof(res));
+	std::string signature = ByteArray(res, sizeof(res)).toBase64();
-
+	appendTextElem(rootNode, "adept:signature", signature);
-	return signature.toBase64();
     }
 
     void DRMProcessor::addNonce(pugi::xml_node& root)
@@ -300,11 +299,13 @@ namespace gourou
 	appendTextElem(root, "adept:expiration", buffer);
     }
     
-    ByteArray DRMProcessor::sendRequest(const std::string& URL, const std::string& POSTdata, const char* contentType, std::map<std::string, std::string>* responseHeaders)
+    ByteArray DRMProcessor::sendRequest(const std::string& URL, const std::string& POSTdata, const char* contentType, std::map<std::string, std::string>* responseHeaders, int fd, bool resume)
     {
 	if (contentType == 0)
 	    contentType = "";
-	std::string reply = client->sendHTTPRequest(URL, POSTdata, contentType, responseHeaders);
+	std::string reply = client->sendHTTPRequest(URL, POSTdata, contentType, responseHeaders, fd, resume);
+
+	if (fd) return ByteArray();
 	
 	pugi::xml_document replyDoc;
 	replyDoc.load_buffer(reply.c_str(), reply.length());
@@ -366,8 +367,7 @@ namespace gourou
 	addNonce(root);
 	appendTextElem(root, "adept:user",        user->getUUID());
 
-	std::string signature = signNode(root);
+	signNode(root);
-	appendTextElem(root, "adept:signature",   signature);
     }
     
     void DRMProcessor::doOperatorAuth(std::string operatorURL)
@@ -528,13 +528,11 @@ namespace gourou
 	
 	hmacParentNode.remove_child(hmacNode);
 
-	std::string signature = signNode(rootNode);
+	signNode(rootNode);
 	
 	// Add removed HMAC
 	appendTextElem(hmacParentNode, hmacNode.name(), hmacNode.first_child().value());
 
-	appendTextElem(rootNode, "adept:signature", signature);
-
 	pugi::xpath_node node = acsmDoc.select_node("//operatorURL");
 	if (!node)
 	    EXCEPTION(FF_NO_OPERATOR_URL, "OperatorURL not found in ACSM document");
@@ -581,7 +579,7 @@ namespace gourou
 	return new FulfillmentItem(fulfillReply, user);
     }
 
-    DRMProcessor::ITEM_TYPE DRMProcessor::download(FulfillmentItem* item, std::string path)
+    DRMProcessor::ITEM_TYPE DRMProcessor::download(FulfillmentItem* item, std::string path, bool resume)
     {
 	ITEM_TYPE res = EPUB;
 	
@@ -590,9 +588,11 @@ namespace gourou
 
 	std::map<std::string, std::string> headers;
 
-	ByteArray replyData = sendRequest(item->getDownloadURL(), "", 0, &headers);
+	int fd = createNewFile(path, !resume);
 	
-	writeFile(path, replyData);
+	sendRequest(item->getDownloadURL(), "", 0, &headers, fd, resume);
+
+	close(fd);
 
 	GOUROU_LOG(INFO, "Download into " << path);
 
@@ -667,7 +667,10 @@ namespace gourou
 	pugi::xml_node signIn = signInRequest.append_child("adept:signIn");
 	signIn.append_attribute("xmlns:adept") = ADOBE_ADEPT_NS;
 	std::string loginMethod = user->getLoginMethod();
-	if (loginMethod.size())
+
+	if (adobeID == "anonymous")
+	    signIn.append_attribute("method") = "anonymous";
+	else if (loginMethod.size())
 	    signIn.append_attribute("method") = loginMethod.c_str();
 	else
 	    signIn.append_attribute("method") = "AdobeID";
@@ -816,10 +819,7 @@ namespace gourou
 
 	pugi::xml_node root = activateReq.select_node("adept:activate").node();
 
-	std::string signature = signNode(root);
+	signNode(root);
-
-	root = activateReq.select_node("adept:activate").node();
-	appendTextElem(root, "adept:signature", signature);
 
 	pugi::xml_document activationDoc;
 	user->readActivation(activationDoc);
@@ -837,6 +837,33 @@ namespace gourou
 	user->updateActivationFile(activationDoc);
     }
     
+    void DRMProcessor::buildReturnReq(pugi::xml_document& returnReq, const std::string& loanID, const std::string& operatorURL)
+    {
+	pugi::xml_node decl = returnReq.append_child(pugi::node_declaration);
+	decl.append_attribute("version") = "1.0";
+	
+	pugi::xml_node root = returnReq.append_child("adept:loanReturn");
+	root.append_attribute("xmlns:adept") = ADOBE_ADEPT_NS;
+
+	appendTextElem(root, "adept:user",      user->getUUID());
+	appendTextElem(root, "adept:device",    user->getDeviceUUID());
+	appendTextElem(root, "adept:loan",      loanID);
+
+	addNonce(root);
+	signNode(root);
+    }
+    
+    void DRMProcessor::returnLoan(const std::string& loanID, const std::string& operatorURL)
+    {
+	pugi::xml_document returnReq;
+
+	GOUROU_LOG(INFO, "Return loan " << loanID);
+
+	buildReturnReq(returnReq, loanID, operatorURL);
+
+	sendRequest(returnReq, operatorURL + "/LoanReturn");
+    }
+
     ByteArray DRMProcessor::encryptWithDeviceKey(const unsigned char* data, unsigned int len)
     {
 	const unsigned char* deviceKey = device->getDeviceKey();

src/loan_token.cpp

@@ -0,0 +1,77 @@
+/*
+  Copyright 2022 Grégory Soutadé
+
+  This file is part of libgourou.
+
+  libgourou is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  libgourou is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with libgourou. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "libgourou_common.h"
+#include "loan_token.h"
+
+namespace gourou
+{
+    LoanToken::LoanToken(pugi::xml_document& doc)
+    {
+	pugi::xml_node node = doc.select_node("/envelope/loanToken").node();
+
+	if (!node)
+	    EXCEPTION(FFI_INVALID_LOAN_TOKEN, "No loanToken element in document");
+
+	node = doc.select_node("/envelope/loanToken/loan").node();
+
+	if (!node)
+	    EXCEPTION(FFI_INVALID_LOAN_TOKEN, "No loanToken/loan element in document");
+
+	properties["id"] = node.first_child().value();
+
+	node = doc.select_node("/envelope/loanToken/operatorURL").node();
+
+	if (!node)
+	    EXCEPTION(FFI_INVALID_LOAN_TOKEN, "No loanToken/operatorURL element in document");
+
+	properties["operatorURL"] = node.first_child().value();
+
+	node = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/licenseToken/permissions/display/until").node();
+
+	if (node)
+	    properties["validity"] = node.first_child().value();
+	else
+	{
+	    node = doc.select_node("/envelope/fulfillmentResult/resourceItemInfo/licenseToken/permissions/play/until").node();
+	    if (node)
+		properties["validity"] = node.first_child().value();
+	    else
+		EXCEPTION(FFI_INVALID_LOAN_TOKEN, "No loanToken/operatorURL element in document");
+	}
+    }
+
+    std::string LoanToken::getProperty(const std::string& property, const std::string& _default)
+    {
+	if (properties.find(property) == properties.end())
+	{
+	    if (_default == "")
+		EXCEPTION(GOUROU_INVALID_PROPERTY, "Invalid property " << property);
+
+	    return _default;
+	}
+
+	return properties[property];
+    }
+
+    std::string LoanToken::operator[](const std::string& property)
+    {
+	return getProperty(property);
+    }
+}

utils/Makefile

@@ -1,10 +1,10 @@
 
-TARGETS=acsmdownloader adept_activate adept_remove
+TARGETS=acsmdownloader adept_activate adept_remove adept_loan_mgt
 
-CXXFLAGS=-Wall `pkg-config --cflags Qt5Core Qt5Network` -fPIC -I$(ROOT)/include -I$(ROOT)/lib/pugixml/src/
+CXXFLAGS=-Wall -fPIC -I$(ROOT)/include -I$(ROOT)/lib/pugixml/src/
 
 STATIC_DEP=
-LDFLAGS=`pkg-config --libs Qt5Core Qt5Network` -L$(ROOT) -lcrypto -lzip -lz
+LDFLAGS=-L$(ROOT) -lcrypto -lzip -lz -lcurl
 
 ifneq ($(STATIC_UTILS),)
 STATIC_DEP = $(ROOT)/libgourou.a
@@ -18,17 +18,26 @@ else
 CXXFLAGS += -O2
 endif
 
-COMMON_DEPS = drmprocessorclientimpl.cpp $(STATIC_DEP)
+COMMON_DEPS = drmprocessorclientimpl.cpp utils_common.cpp
+COMMON_OBJECTS = $(COMMON_DEPS:.cpp=.o)
+COMMON_LIB  = utils.a
 
 all: $(TARGETS)
 
-acsmdownloader: acsmdownloader.cpp $(COMMON_DEPS)
+${COMMON_LIB}: ${COMMON_DEPS} ${STATIC_DEP}
+	$(CXX) $(CXXFLAGS) ${COMMON_DEPS} $(LDFLAGS) -c
+	$(AR) crs $@ ${COMMON_OBJECTS} $(STATIC_DEP)
+
+acsmdownloader: acsmdownloader.cpp ${COMMON_LIB}
 	$(CXX) $(CXXFLAGS) $^ $(LDFLAGS) -o $@
 
-adept_activate: adept_activate.cpp $(COMMON_DEPS)
+adept_activate: adept_activate.cpp ${COMMON_LIB}
 	$(CXX) $(CXXFLAGS) $^ $(LDFLAGS) -o $@
 
-adept_remove: adept_remove.cpp $(COMMON_DEPS)
+adept_remove: adept_remove.cpp ${COMMON_LIB}
+	$(CXX) $(CXXFLAGS) $^ $(LDFLAGS) -o $@
+
+adept_loan_mgt: adept_loan_mgt.cpp ${COMMON_LIB}
 	$(CXX) $(CXXFLAGS) $^ $(LDFLAGS) -o $@
 
 clean:

utils/acsmdownloader.cpp

@@ -26,21 +26,17 @@
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#include <unistd.h>
 #include <getopt.h>
+#include <libgen.h>
 
 #include <iostream>
-
+#include <algorithm>
-#include <QFile>
-#include <QDir>
-#include <QCoreApplication>
-#include <QRunnable>
-#include <QThreadPool>
 
 #include <libgourou.h>
-#include "drmprocessorclientimpl.h"
+#include <libgourou_common.h>
 
-#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
+#include "drmprocessorclientimpl.h"
+#include "utils_common.h"
 
 static const char* deviceFile     = "device.xml";
 static const char* activationFile = "activation.xml";
@@ -49,28 +45,18 @@ static const char* acsmFile       = 0;
 static       bool  exportPrivateKey = false;
 static const char* outputFile     = 0;
 static const char* outputDir      = 0;
-static const char* defaultDirs[]  = {
+static       bool  resume         = false;
-    ".adept/",
-    "./adobe-digital-editions/",
-    "./.adobe-digital-editions/"
-};
 
 
-class ACSMDownloader: public QRunnable
+class ACSMDownloader
 {
 public:
-    ACSMDownloader(QCoreApplication* app):
-	app(app)
-    {
-	setAutoDelete(false);
-    }
     
-    void run()
+    int run()
     {
 	int ret = 0;
 	try
 	{
-	    DRMProcessorClientImpl client;
 	    gourou::DRMProcessor processor(&client, deviceFile, activationFile, devicekeyFile);
 	    gourou::User* user = processor.getUser();
 	    
@@ -84,9 +70,8 @@ public:
 	    
 		if (outputDir)
 		{
-		    QDir dir(outputDir);
+		    if (!fileExists(outputDir))
-		    if (!dir.exists(outputDir))
+			mkpath(outputDir);
-			dir.mkpath(outputDir);
 		    
 		    filename = std::string(outputDir) + "/" + filename;
 		}
@@ -116,14 +101,13 @@ public:
 	    
 		if (outputDir)
 		{
-		    QDir dir(outputDir);
+		    if (!fileExists(outputDir))
-		    if (!dir.exists(outputDir))
+			mkpath(outputDir);
-			dir.mkpath(outputDir);
 
 		    filename = std::string(outputDir) + "/" + filename;
 		}
 	    
-		gourou::DRMProcessor::ITEM_TYPE type = processor.download(item, filename);
+		gourou::DRMProcessor::ITEM_TYPE type = processor.download(item, filename, resume);
 
 		if (!outputFile)
 		{
@@ -132,11 +116,12 @@ public:
 			finalName += ".pdf";
 		    else
 			finalName += ".epub";
-		    QDir dir;
+		    rename(filename.c_str(), finalName.c_str());
-		    dir.rename(filename.c_str(), finalName.c_str());
 		    filename = finalName;
 		}
 		std::cout << "Created " << filename << std::endl;
+
+		serializeLoanToken(item);
 	    }
 	} catch(std::exception& e)
 	{
@@ -144,43 +129,62 @@ public:
 	    ret = 1;
 	}
 
-	this->app->exit(ret);
+	return ret;
+    }
+
+    void serializeLoanToken(gourou::FulfillmentItem* item)
+    {
+	gourou::LoanToken* token = item->getLoanToken();
+
+	// No loan token available
+	if (!token)
+	    return;
+
+	pugi::xml_document doc;
+
+	pugi::xml_node decl = doc.append_child(pugi::node_declaration);
+	decl.append_attribute("version") = "1.0";
+
+	pugi::xml_node root = doc.append_child("loanToken");
+	gourou::appendTextElem(root, "id",          (*token)["id"]);
+	gourou::appendTextElem(root, "operatorURL", (*token)["operatorURL"]);
+	gourou::appendTextElem(root, "validity",    (*token)["validity"]);
+	gourou::appendTextElem(root, "name",        item->getMetadata("title"));
+
+	char * activationDir = strdup(deviceFile);
+	activationDir = dirname(activationDir);
+		
+	gourou::StringXMLWriter xmlWriter;
+	doc.save(xmlWriter, "  ");
+	std::string xmlStr = xmlWriter.getResult();
+
+	// Use first bytes of SHA1(id) as filename
+	unsigned char sha1[gourou::SHA1_LEN];
+	client.digest("SHA1", (unsigned char*)(*token)["id"].c_str(), (*token)["id"].size(), sha1);
+	gourou::ByteArray tmp(sha1, sizeof(sha1));
+	std::string filenameHex = tmp.toHex();
+	std::string filename(filenameHex.c_str(), ID_HASH_SIZE);
+	std::string fullPath = std::string(activationDir);
+	fullPath += std::string ("/") + std::string(LOANS_DIR);
+	mkpath(fullPath.c_str());
+	fullPath += filename + std::string(".xml");
+	gourou::writeFile(fullPath, xmlStr);
+
+	std::cout << "Loan token serialized into " << fullPath << std::endl;
+
+	free(activationDir);
     }
     
 private:
-    QCoreApplication* app;
+    DRMProcessorClientImpl client;
 };	      
 
-static const char* findFile(const char* filename, bool inDefaultDirs=true)
-{
-    QFile file(filename);
-
-    if (file.exists())
-	return strdup(filename);
-
-    if (!inDefaultDirs) return 0;
-    
-    for (int i=0; i<(int)ARRAY_SIZE(defaultDirs); i++)
-    {
-	QString path = QString(defaultDirs[i]) + QString(filename);
-	file.setFileName(path);
-	if (file.exists())
-	    return strdup(path.toStdString().c_str());
-    }
-    
-    return 0;
-}
-
-static void version(void)
-{
-    std::cout << "Current libgourou version : " << gourou::DRMProcessor::VERSION << std::endl ;
-}
 
 static void usage(const char* cmd)
 {
     std::cout << "Download EPUB file from ACSM request file" << std::endl;
     
-    std::cout << "Usage: " << cmd << " [(-d|--device-file) device.xml] [(-a|--activation-file) activation.xml] [(-k|--device-key-file) devicesalt] [(-O|--output-dir) dir] [(-o|--output-file) output(.epub|.pdf|.der)] [(-v|--verbose)] [(-h|--help)] (-f|--acsm-file) file.acsm|(-e|--export-private-key)" << std::endl << std::endl;
+    std::cout << "Usage: " << cmd << " [(-d|--device-file) device.xml] [(-a|--activation-file) activation.xml] [(-k|--device-key-file) devicesalt] [(-O|--output-dir) dir] [(-o|--output-file) output(.epub|.pdf|.der)] [(-r|--resume)] [(-v|--verbose)] [(-h|--help)] (-f|--acsm-file) file.acsm|(-e|--export-private-key)" << std::endl << std::endl;
     
     std::cout << "  " << "-d|--device-file"     << "\t"   << "device.xml file from eReader" << std::endl;
     std::cout << "  " << "-a|--activation-file" << "\t"   << "activation.xml file from eReader" << std::endl;
@@ -189,6 +193,7 @@ static void usage(const char* cmd)
     std::cout << "  " << "-o|--output-file"     << "\t"   << "Optional output filename (default <title.(epub|pdf|der)>)" << std::endl;
     std::cout << "  " << "-f|--acsm-file"       << "\t"   << "ACSM request file for epub download" << std::endl;
     std::cout << "  " << "-e|--export-private-key"<< "\t" << "Export private key in DER format" << std::endl;
+    std::cout << "  " << "-r|--resume"          << "\t\t" << "Try to resume download (in case of previous failure)" << std::endl;
     std::cout << "  " << "-v|--verbose"         << "\t\t" << "Increase verbosity, can be set multiple times" << std::endl;
     std::cout << "  " << "-V|--version"         << "\t\t" << "Display libgourou version" << std::endl;
     std::cout << "  " << "-h|--help"            << "\t\t" << "This help" << std::endl;
@@ -218,13 +223,14 @@ int main(int argc, char** argv)
 	    {"output-file",      required_argument, 0,  'o' },
 	    {"acsm-file",        required_argument, 0,  'f' },
 	    {"export-private-key",no_argument,      0,  'e' },
+	    {"resume",           no_argument,       0,  'r' },
 	    {"verbose",          no_argument,       0,  'v' },
 	    {"version",          no_argument,       0,  'V' },
 	    {"help",             no_argument,       0,  'h' },
 	    {0,                  0,                 0,  0 }
 	};
 
-	c = getopt_long(argc, argv, "d:a:k:O:o:f:evVh",
+	c = getopt_long(argc, argv, "d:a:k:O:o:f:ervVh",
                         long_options, &option_index);
 	if (c == -1)
 	    break;
@@ -251,6 +257,9 @@ int main(int argc, char** argv)
 	case 'e':
 	    exportPrivateKey = true;
 	    break;
+	case 'r':
+	    resume = true;
+	    break;
 	case 'v':
 	    verbose++;
 	    break;
@@ -275,8 +284,7 @@ int main(int argc, char** argv)
 	return -1;
     }
 
-    QCoreApplication app(argc, argv);
+    ACSMDownloader downloader;
-    ACSMDownloader downloader(&app);
 
     int i;
     bool hasErrors = false;
@@ -306,8 +314,7 @@ int main(int argc, char** argv)
     }
     else
     {
-	QFile file(acsmFile);
+	if (!fileExists(acsmFile))
-	if (!file.exists())
 	{
 	    std::cout << "Error : " << acsmFile << " doesn't exists" << std::endl;
 	    ret = -1;
@@ -315,9 +322,7 @@ int main(int argc, char** argv)
 	}
     }
     
-    QThreadPool::globalInstance()->start(&downloader);
+    ret = downloader.run();
-
-    ret = app.exec();
 
 end:
     for (i=0; i<(int)ARRAY_SIZE(files); i++)

utils/adept_activate.cpp

@@ -28,22 +28,16 @@
 
 #include <unistd.h>
 #include <getopt.h>
-#include <stdlib.h>
 #include <termios.h>
+#include <string.h>
+#include <limits.h>
 
 #include <iostream>
 #include <ostream>
 
-#include <QFile>
-#include <QDir>
-#include <QCoreApplication>
-#include <QRunnable>
-#include <QThreadPool>
-
 #include <libgourou.h>
 #include "drmprocessorclientimpl.h"
-
+#include "utils_common.h"
-#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
 
 static const char* username      = 0;
 static const char* password      = 0;
@@ -100,16 +94,11 @@ static std::string getpass(const char *prompt, bool show_asterisk=false)
 }
 
 
-class ADEPTActivate: public QRunnable
+class ADEPTActivate
 {
 public:  
-    ADEPTActivate(QCoreApplication* app):
-	app(app)
-    {
-	setAutoDelete(false);
-    }
 
-    void run()
+    int run()
     {
 	int ret = 0;
 	try
@@ -128,17 +117,10 @@ public:
 	    ret = 1;
 	}
 
-	this->app->exit(ret);
+	return ret;
     }
-
-private:
-    QCoreApplication* app;
 };	      
 
-static void version(void)
-{
-    std::cout << "Current libgourou version : " << gourou::DRMProcessor::VERSION << std::endl ;
-}
 
 static void usage(const char* cmd)
 {
@@ -162,8 +144,8 @@ static void usage(const char* cmd)
 static const char* abspath(const char* filename)
 {
     const char* root = getcwd(0, PATH_MAX);
-    QString fullPath = QString(root) + QString("/") + QString(filename);
+    std::string fullPath = std::string(root) + std::string("/") + filename;
-    const char* res = strdup(fullPath.toStdString().c_str());
+    const char* res = strdup(fullPath.c_str());
 
     free((void*)root);
 
@@ -255,9 +237,8 @@ int main(int argc, char** argv)
 	// Relative path
 	if (_outputDir[0] == '.' || _outputDir[0] != '/')
 	{
-	    QFile file(_outputDir);
 	    // realpath doesn't works if file/dir doesn't exists
-	    if (file.exists())
+	    if (fileExists(_outputDir))
 		outputDir = strdup(realpath(_outputDir, 0));
 	    else
 		outputDir = strdup(abspath(_outputDir));
@@ -266,10 +247,8 @@ int main(int argc, char** argv)
 	    outputDir = strdup(_outputDir);
     }
 
-    QCoreApplication app(argc, argv);
+    std::string pass;
-
+    if (fileExists(outputDir))
-    QFile file(outputDir);
-    if (file.exists())
     {
 	int key;
 	
@@ -289,7 +268,6 @@ int main(int argc, char** argv)
 	    ;
     }
 
-    std::string pass;
     if (!password)
     {
 	char prompt[128];
@@ -298,13 +276,11 @@ int main(int argc, char** argv)
 	password = pass.c_str();
     }
         
-    ADEPTActivate activate(&app);
+    ADEPTActivate activate;
-    QThreadPool::globalInstance()->start(&activate);
 
-    ret = app.exec();
+    ret = activate.run();
 
 end:    
-    
     free((void*)outputDir);
     return ret;
 }

utils/adept_loan_mgt.cpp

@@ -0,0 +1,479 @@
+/*
+  Copyright (c) 2022, Grégory Soutadé
+
+  All rights reserved.
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+  
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+  * Neither the name of the copyright holder nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+  
+  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <getopt.h>
+
+#include <iostream>
+#include <algorithm>
+
+#define _XOPEN_SOURCE 700
+#include <stdio.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <libgen.h>
+#include <time.h>
+
+#include <libgourou.h>
+#include <libgourou_common.h>
+#include "drmprocessorclientimpl.h"
+#include "utils_common.h"
+
+#define MAX_SIZE_BOOK_NAME   30
+
+static       char* activationDir  = 0;
+static const char* deviceFile     = "device.xml";
+static const char* activationFile = "activation.xml";
+static const char* devicekeyFile  = "devicesalt";
+static       bool  list           = false;
+static const char* returnID       = 0;
+static const char* deleteID       = 0;
+
+struct Loan
+{
+    std::string id;
+    std::string operatorURL;
+    std::string validity;
+    std::string bookName;
+    
+    std::string path;
+};
+    
+class LoanMGT
+{
+public:
+    ~LoanMGT()
+    {
+	for (const auto& kv : loanedBooks)
+	    delete kv.second;
+    }
+    
+    int run()
+    {
+	int ret = 0;
+	try
+	{
+	    DRMProcessorClientImpl client;
+	    gourou::DRMProcessor processor(&client, deviceFile, activationFile, devicekeyFile);
+
+	    loadLoanedBooks();
+
+	    if (list)
+		displayLoanList();
+	    else if (returnID)
+		returnBook(processor);
+	    else if (deleteID)
+		deleteLoan();
+	} catch(std::exception& e)
+	{
+	    std::cout << e.what() << std::endl;
+	    ret = 1;
+	}
+
+	return ret;
+    }
+
+private:
+    void loadLoanedBooks()
+    {
+	DIR *dp;
+	struct dirent *ep;
+	int entryLen;
+	struct Loan* loan;
+	char * res;
+	
+	std::string loanDir = std::string(activationDir) + std::string("/") + LOANS_DIR;
+
+	if (!fileExists(loanDir.c_str()))
+	    return;
+	
+	dp = opendir (loanDir.c_str());
+
+	if(!dp)
+	    EXCEPTION(gourou::USER_INVALID_INPUT, "Cannot read directory " << loanDir);
+
+	while ((ep = readdir (dp)))
+	{
+	    if (ep->d_type != DT_LNK &&
+		ep->d_type != DT_REG)
+		continue;
+
+	    entryLen = strlen(ep->d_name);
+
+	    if (entryLen <= 4 ||
+		ep->d_name[entryLen-4] != '.' ||
+		ep->d_name[entryLen-3] != 'x' ||
+		ep->d_name[entryLen-2] != 'm' ||
+		ep->d_name[entryLen-1] != 'l')
+		continue;
+
+	    std::string id = std::string(ep->d_name, entryLen-4);
+	    
+	    loan = new Loan;
+	    loan->path = loanDir + std::string("/") + ep->d_name;
+
+	    pugi::xml_document xmlDoc;
+	    pugi::xml_node node;
+
+	    if (!xmlDoc.load_file(loan->path.c_str(), pugi::parse_ws_pcdata_single|pugi::parse_escapes, pugi::encoding_utf8))
+	    {
+		std::cout << "Invalid loan entry " << loan->path << std::endl;
+		goto error;
+	    }
+
+	    // id
+	    node = xmlDoc.select_node("//id").node();
+	    if (!node)
+	    {
+		std::cout << "Invalid loan entry " << ep->d_name << ", no id element" << std::endl;
+		goto error;
+	    }
+	    loan->id = node.first_child().value();
+
+	    // operatorURL
+	    node = xmlDoc.select_node("//operatorURL").node();
+	    if (!node)
+	    {
+		std::cout << "Invalid loan entry " << ep->d_name << ", no operatorURL element" << std::endl;
+		goto error;
+	    }
+	    loan->operatorURL = node.first_child().value();
+
+	    // validity
+	    node = xmlDoc.select_node("//validity").node();
+	    if (!node)
+	    {
+		std::cout << "Invalid loan entry " << ep->d_name << ", no validity element" << std::endl;
+		goto error;
+	    }
+	    loan->validity = node.first_child().value();
+
+	    // bookName
+	    node = xmlDoc.select_node("//name").node();
+	    if (!node)
+	    {
+		std::cout << "Invalid loan entry " << ep->d_name << ", no name element" << std::endl;
+		goto error;
+	    }
+	    loan->bookName = node.first_child().value();
+
+	    struct tm tm;
+	    res = strptime(loan->validity.c_str(), "%Y-%m-%dT%H:%M:%S%Z", &tm);
+	    if (*res == 0)
+	    {
+		if (mktime(&tm) <= time(NULL))
+		    loan->validity = "     (Expired)";
+	    }
+	    else
+	    {
+		std::cout << "Unable to parse validity timestamp :" << loan->validity << std::endl;
+		loan->validity = "     (Unknown)";
+	    }
+	    
+	    loanedBooks[id] = loan;
+	    continue;
+
+	error:
+	    if (loan)
+		delete loan;
+	}
+
+	closedir (dp);
+    }
+
+    void displayLoanList()
+    {
+	if (!loanedBooks.size())
+	{
+	    std::cout << "Any book loaned" << std::endl;
+	    return;
+	}
+
+	struct Loan* loan;
+	unsigned int maxSizeBookName=0;
+	// Compute max size
+	for (const auto& kv : loanedBooks)
+	{
+	    loan = kv.second;
+	    if (loan->bookName.size() > maxSizeBookName)
+		maxSizeBookName = loan->bookName.size();
+	}
+
+	if (maxSizeBookName > MAX_SIZE_BOOK_NAME)
+	    maxSizeBookName = MAX_SIZE_BOOK_NAME;
+	else if ((maxSizeBookName % 2))
+	    maxSizeBookName++;
+
+	// std::cout << "  ID      Book      Expiration" << std::endl;
+	// std::cout << "------------------------------" << std::endl;
+
+	int fillID, fillBookName, fillExpiration=(20 - 10)/2;
+	
+	fillID = (ID_HASH_SIZE - 2) / 2;
+	fillBookName = (maxSizeBookName - 4) / 2;
+
+	std::cout.width (fillID);
+	std::cout << "";
+	std::cout << "ID" ;
+	std::cout.width (fillID);
+	std::cout << "";
+	std::cout << "    " ;
+	
+	std::cout.width (fillBookName);
+	std::cout << "";
+	std::cout << "Book" ;
+	std::cout.width (fillBookName);
+	std::cout << "";
+	std::cout << "    " ;
+
+	std::cout.width (fillExpiration);
+	std::cout << "";
+	std::cout << "Exipration";
+	std::cout.width (fillExpiration);
+	std::cout << "" << std::endl;
+
+	std::cout.fill ('-');
+	std::cout.width (ID_HASH_SIZE + 4 + maxSizeBookName + 4 + 20);
+	std::cout << "" << std::endl;
+	std::cout.fill (' ');
+
+	std::string bookName;
+
+	for (const auto& kv : loanedBooks)
+	{
+	    loan = kv.second;
+
+	    std::cout << kv.first;
+	    std::cout << "    ";
+
+	    if (loan->bookName.size() > MAX_SIZE_BOOK_NAME)
+		bookName = std::string(loan->bookName.c_str(), MAX_SIZE_BOOK_NAME);
+	    else
+		bookName = loan->bookName;
+
+	    std::cout << bookName;
+	    std::cout.width (maxSizeBookName - bookName.size());
+	    std::cout << "";
+	    std::cout << "    ";
+	    
+	    std::cout << loan->validity << std::endl;
+	}
+
+	std::cout << std::endl;
+    }
+
+    void returnBook(gourou::DRMProcessor& processor)
+    {
+	struct Loan* loan = loanedBooks[std::string(returnID)];
+
+	if (!loan)
+	{
+	    std::cout << "Error : Loan " << returnID << " doesn't exists" << std::endl;
+	    return;
+	}
+
+	processor.returnLoan(loan->id, loan->operatorURL);
+	
+	deleteID = returnID;
+	if (deleteLoan(false))
+	{
+	    std::cout << "Loan " << returnID << " successfully returned" << std::endl;
+	}
+    }
+    
+    bool deleteLoan(bool displayResult=true)
+    {
+	struct Loan* loan = loanedBooks[std::string(deleteID)];
+
+	if (!loan)
+	{
+	    std::cout << "Error : Loan " << deleteID << " doesn't exists" << std::endl;
+	    return false;
+	}
+
+	if (unlink(loan->path.c_str()))
+	{
+	    std::cout << "Error : Cannot delete " << loan->path << std::endl;
+	    return false;
+	}
+	else if (displayResult)
+	{
+	    std::cout << "Loan " << deleteID << " deleted" << std::endl;
+	}
+	
+	return true;
+    }
+
+    std::map<std::string, struct Loan*> loanedBooks;
+};	      
+
+
+static void usage(const char* cmd)
+{
+    std::cout << "Manage loaned books" << std::endl;
+    
+    std::cout << "Usage: " << cmd << " [(-d|--activation-dir) dir] (-l|--list)|(-D|--delete loanID)|(-R|--delete loanID) [(-v|--verbose)] [(-h|--help)]" << std::endl << std::endl;
+    
+    std::cout << "  " << "-d|--activation-dir"  << "\t"   << "Directory of device.xml/activation.xml and device key" << std::endl;
+    std::cout << "  " << "-l|--list"            << "\t\t" << "List all loaned books" << std::endl;
+    std::cout << "  " << "-r|--return"          << "\t\t" << "Return a loaned book" << std::endl;
+    std::cout << "  " << "-D|--delete"          << "\t\t" << "Delete a loan entry without returning it" << std::endl;
+    std::cout << "  " << "-v|--verbose"         << "\t\t" << "Increase verbosity, can be set multiple times" << std::endl;
+    std::cout << "  " << "-V|--version"         << "\t\t" << "Display libgourou version" << std::endl;
+    std::cout << "  " << "-h|--help"            << "\t\t" << "This help" << std::endl;
+
+    std::cout << std::endl;
+    std::cout << "Activation directory is optional. If not set, it's looked into :" << std::endl;
+    std::cout << "  * Current directory" << std::endl;
+    std::cout << "  * .adept" << std::endl;
+    std::cout << "  * adobe-digital-editions directory" << std::endl;
+    std::cout << "  * .adobe-digital-editions directory" << std::endl;
+}
+
+int main(int argc, char** argv)
+{
+    int c, ret = -1;
+
+    const char** files[] = {&devicekeyFile, &deviceFile, &activationFile};
+    int verbose = gourou::DRMProcessor::getLogLevel();
+    int actions = 0;
+    
+    while (1) {
+	int option_index = 0;
+	static struct option long_options[] = {
+	    {"activation-dir",   required_argument, 0,  'd' },
+	    {"list",             no_argument,       0,  'l' },
+	    {"return",           no_argument,       0,  'r' },
+	    {"delete",           no_argument,       0,  'D' },
+	    {"verbose",          no_argument,       0,  'v' },
+	    {"version",          no_argument,       0,  'V' },
+	    {"help",             no_argument,       0,  'h' },
+	    {0,                  0,                 0,  0 }
+	};
+
+	c = getopt_long(argc, argv, "d:lr:D:vVh",
+                        long_options, &option_index);
+	if (c == -1)
+	    break;
+
+	switch (c) {
+	case 'd':
+	    activationDir = optarg;
+	    break;
+	case 'l':
+	    list = true;
+	    actions++;
+	    break;
+	case 'r':
+	    returnID = optarg;
+	    actions++;
+	    break;
+	case 'D':
+	    deleteID = optarg;
+	    actions++;
+	    break;
+	case 'v':
+	    verbose++;
+	    break;
+	case 'V':
+	    version();
+	    return 0;
+	case 'h':
+	    usage(argv[0]);
+	    return 0;
+	default:
+	    usage(argv[0]);
+	    return -1;
+	}
+    }
+   
+    gourou::DRMProcessor::setLogLevel(verbose);
+
+    // By default, simply list books loaned
+    if (actions == 0)
+	list = true;
+    else if (actions != 1)
+    {
+	usage(argv[0]);
+	return -1;
+    }
+
+    LoanMGT loanMGT;
+
+    int i;
+    bool hasErrors = false;
+    const char* orig;
+    char *filename;
+    for (i=0; i<(int)ARRAY_SIZE(files); i++)
+    {
+	orig = *files[i];
+	
+	if (activationDir)
+	{
+	    std::string path = std::string(activationDir) + std::string("/") + orig;
+	    filename = strdup(path.c_str());
+	}
+	else
+	    filename = strdup(orig);
+	*files[i] = findFile(filename);
+	free(filename);
+	if (!*files[i])
+	{
+	    std::cout << "Error : " << orig << " doesn't exists, did you activate your device ?" << std::endl;
+	    hasErrors = true;
+	}
+    }
+
+    if (hasErrors)
+    {
+	// In case of activation dir was provided by user
+	activationDir = 0;
+	goto end;
+    }
+
+    if (activationDir)
+	activationDir = strdup(activationDir); // For below free
+    else
+    {
+	activationDir = strdup(deviceFile);
+	activationDir = dirname(activationDir);
+    }
+
+    ret = loanMGT.run();
+    
+end:
+    for (i=0; i<(int)ARRAY_SIZE(files); i++)
+    {
+	if (*files[i])
+	    free((void*)*files[i]);
+    }
+
+    if (activationDir)
+	free(activationDir);
+    
+    return ret;
+}

utils/adept_remove.cpp

@@ -26,23 +26,15 @@
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-#include <unistd.h>
 #include <getopt.h>
 
 #include <iostream>
 
-#include <QFile>
-#include <QDir>
-#include <QCoreApplication>
-#include <QRunnable>
-#include <QThreadPool>
-#include <QTemporaryFile>
-
 #include <libgourou.h>
 #include <libgourou_common.h>
-#include "drmprocessorclientimpl.h"
 
-#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
+#include "drmprocessorclientimpl.h"
+#include "utils_common.h"
 
 static const char* deviceFile     = "device.xml";
 static const char* activationFile = "activation.xml";
@@ -50,13 +42,9 @@ static const char* devicekeyFile  = "devicesalt";
 static const char* inputFile      = 0;
 static const char* outputFile     = 0;
 static const char* outputDir      = 0;
-static const char* defaultDirs[]  = {
+
-    ".adept/",
+static char*          encryptionKeyUser  = 0;
-    "./adobe-digital-editions/",
+static unsigned char* encryptionKey      = 0;
-    "./.adobe-digital-editions/"
-};
-static char* encryptionKeyUser  = 0;
-static unsigned char* encryptionKey  = 0;
 static unsigned       encryptionKeySize  = 0;
 
 static inline unsigned char htoi(unsigned char c)
@@ -78,16 +66,11 @@ static inline bool endsWith(const std::string& s, const std::string& suffix)
     return s.rfind(suffix) == std::abs((int)(s.size()-suffix.size()));
 }
 
-class ADEPTRemove: public QRunnable
+class ADEPTRemove
 {
 public:
-    ADEPTRemove(QCoreApplication* app):
-	app(app)
-    {
-	setAutoDelete(false);
-    }
    
-    void run()
+    int run()
     {
 	int ret = 0;
 	try
@@ -104,9 +87,8 @@ public:
 	    
 	    if (outputDir)
 	    {
-		QDir dir(outputDir);
+		if (!fileExists(outputDir))
-		if (!dir.exists(outputDir))
+		    mkpath(outputDir);
-		    dir.mkpath(outputDir);
 
 		filename = std::string(outputDir) + "/" + filename;
 	    }
@@ -122,11 +104,8 @@ public:
 	    
 	    if (inputFile != filename)
 	    {
-		QFile::remove(filename.c_str());
+		unlink(filename.c_str());
-		if (!QFile::copy(inputFile, filename.c_str()))
+		fileCopy(inputFile, filename.c_str());
-		{
-		    EXCEPTION(gourou::DRM_FILE_ERROR, "Unable to copy " << inputFile << " into " << filename);
-		}
 		processor.removeDRM(inputFile, filename, type, encryptionKey, encryptionKeySize);
 		std::cout << "DRM removed into new file " << filename << std::endl;
 	    }
@@ -135,18 +114,16 @@ public:
 		// Use temp file for PDF
 		if (type == gourou::DRMProcessor::ITEM_TYPE::PDF)
 		{
-		    QTemporaryFile tempFile;
+		    std::string tempFile = filename + ".tmp";
-		    tempFile.open();
+		    /* Be sure there is not already a temp file */
-		    tempFile.setAutoRemove(false); // In case of failure
+		    unlink(tempFile.c_str());
-		    processor.removeDRM(inputFile, tempFile.fileName().toStdString(), type, encryptionKey, encryptionKeySize);
+		    processor.removeDRM(filename, tempFile, type, encryptionKey, encryptionKeySize);
 		    /* Original file must be removed before doing a copy... */
-		    QFile origFile(inputFile);
+		    unlink(filename.c_str());
-		    origFile.remove();
+		    if (rename(tempFile.c_str(), filename.c_str()))
-		    if (!QFile::copy(tempFile.fileName(), filename.c_str()))
 		    {
-			EXCEPTION(gourou::DRM_FILE_ERROR, "Unable to copy " << tempFile.fileName().toStdString() << " into " << filename);
+			EXCEPTION(gourou::DRM_FILE_ERROR, "Unable to copy " << tempFile << " into " << filename);
 		    }
-		    tempFile.setAutoRemove(true);
 		}
 		else
 		    processor.removeDRM(inputFile, filename, type, encryptionKey, encryptionKeySize);
@@ -158,38 +135,10 @@ public:
 	    ret = 1;
 	}
 
-	this->app->exit(ret);
+	return ret;
     }
-
-private:
-    QCoreApplication* app;
 };	      
 
-static const char* findFile(const char* filename, bool inDefaultDirs=true)
-{
-    QFile file(filename);
-
-    if (file.exists())
-	return strdup(filename);
-
-    if (!inDefaultDirs) return 0;
-    
-    for (int i=0; i<(int)ARRAY_SIZE(defaultDirs); i++)
-    {
-	QString path = QString(defaultDirs[i]) + QString(filename);
-	file.setFileName(path);
-	if (file.exists())
-	    return strdup(path.toStdString().c_str());
-    }
-    
-    return 0;
-}
-
-static void version(void)
-{
-    std::cout << "Current libgourou version : " << gourou::DRMProcessor::VERSION << std::endl ;
-}
-
 static void usage(const char* cmd)
 {
     std::cout << "Remove ADEPT DRM (from Adobe) of EPUB/PDF file" << std::endl;
@@ -288,8 +237,7 @@ int main(int argc, char** argv)
 	return -1;
     }
 
-    QCoreApplication app(argc, argv);
+    ADEPTRemove remover;
-    ADEPTRemove remover(&app);
 
     int i;
     bool hasErrors = false;
@@ -335,9 +283,7 @@ int main(int argc, char** argv)
     if (hasErrors)
 	goto end;
        
-    QThreadPool::globalInstance()->start(&remover);
+    ret = remover.run();
-
-    ret = app.exec();
     
 end:
     for (i=0; i<(int)ARRAY_SIZE(files); i++)

utils/drmprocessorclientimpl.cpp

@@ -25,17 +25,18 @@
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
+#include <bytearray.h>
+
+#include <algorithm> 
+#include <cctype>
+#include <locale>
 
 #include <openssl/rand.h>
 #include <openssl/pkcs12.h>
 #include <openssl/evp.h>
 #include <openssl/err.h>
 
-#include <QCoreApplication>
+#include <curl/curl.h>
-#include <QNetworkReply>
-#include <QNetworkRequest>
-#include <QNetworkAccessManager>
-#include <QFile>
 
 #include <zlib.h>
 #include <zip.h>
@@ -88,25 +89,78 @@ void DRMProcessorClientImpl::randBytes(unsigned char* bytesOut, unsigned int len
 }
 
 /* HTTP interface */
-#define DISPLAY_THRESHOLD 10*1024 // Threshold to display download progression
+#define HTTP_REQ_MAX_RETRY  5
+#define DISPLAY_THRESHOLD   10*1024 // Threshold to display download progression
+static unsigned downloadedBytes;
 
-static void downloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
+static int downloadProgress(void *clientp, curl_off_t dltotal, curl_off_t dlnow,
-    // For "big" files only
+			    curl_off_t ultotal, curl_off_t ulnow)
-    if (bytesTotal >= DISPLAY_THRESHOLD && gourou::logLevel >= gourou::WARN)
+{
+// For "big" files only
+    if (dltotal >= DISPLAY_THRESHOLD && gourou::logLevel >= gourou::WARN)
     {
 	int percent = 0;
-	if (bytesTotal)
+	if (dltotal)
-	    percent = (bytesReceived * 100) / bytesTotal;
+	    percent = (dlnow * 100) / dltotal;
 
 	std::cout << "\rDownload " << percent << "%" << std::flush;
     }
+
+    return 0;
 }
 
-std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, const std::string& POSTData, const std::string& contentType, std::map<std::string, std::string>* responseHeaders)
+static size_t curlRead(void *data, size_t size, size_t nmemb, void *userp)
 {
-    QNetworkRequest request(QUrl(URL.c_str()));
+    gourou::ByteArray* replyData = (gourou::ByteArray*) userp;
-    QNetworkAccessManager networkManager;
+    
-    QByteArray replyData;
+    replyData->append((unsigned char*)data, size*nmemb);
+
+    return size*nmemb;
+}
+
+static size_t curlReadFd(void *data, size_t size, size_t nmemb, void *userp)
+{
+    int fd = *(int*) userp;
+
+    size_t res = write(fd, data, size*nmemb);
+
+    downloadedBytes += res;
+
+    return res;
+}
+
+static size_t curlHeaders(char *buffer, size_t size, size_t nitems, void *userdata)
+{
+    std::map<std::string, std::string>* responseHeaders = (std::map<std::string, std::string>*)userdata;
+    std::string::size_type pos = 0;
+    std::string buf(buffer, size*nitems);
+
+    pos = buf.find(":", pos);
+
+    if (pos != std::string::npos)
+    {
+	std::string key   = std::string(buffer, pos);
+	std::string value = std::string(&buffer[pos+1], (size*nitems)-(pos+1));
+
+	key = gourou::trim(key);
+	value = gourou::trim(value);
+
+	(*responseHeaders)[key] = value;
+    
+	if (gourou::logLevel >= gourou::DEBUG)
+	    std::cout << key << " : "  << value << std::endl;
+    }
+    
+    return size*nitems;
+}
+
+std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, const std::string& POSTData, const std::string& contentType, std::map<std::string, std::string>* responseHeaders, int fd, bool resume)
+{
+    gourou::ByteArray replyData;
+    std::map<std::string, std::string> localHeaders;
+
+    if (!responseHeaders)
+	responseHeaders = &localHeaders;
     
     GOUROU_LOG(gourou::INFO, "Send request to " << URL);
     if (POSTData.size())
@@ -114,54 +168,111 @@ std::string DRMProcessorClientImpl::sendHTTPRequest(const std::string& URL, cons
 	GOUROU_LOG(gourou::DEBUG, "<<< " << std::endl << POSTData);
     }
 
-    request.setRawHeader("Accept", "*/*");
+    unsigned prevDownloadedBytes;
-    request.setRawHeader("User-Agent", "book2png");
+    downloadedBytes = 0;
-    if (contentType.size())
+    if (fd && resume)
-	request.setRawHeader("Content-Type", contentType.c_str());
+    {
+	struct stat _stat;
+	if (!fstat(fd, &_stat))
+	{
+	    GOUROU_LOG(gourou::WARN, "Resume download @ " << _stat.st_size << " bytes");
+	    downloadedBytes = _stat.st_size;
+	}
+	else
+	    GOUROU_LOG(gourou::WARN, "Want to resume, but fstat failed");
+    }
     
-    QNetworkReply* reply;
+    CURL *curl = curl_easy_init();
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, URL.c_str());
+    curl_easy_setopt(curl, CURLOPT_USERAGENT, "book2png");
+    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+
+    
+    struct curl_slist *list = NULL;
+    list = curl_slist_append(list, "Accept: */*");
+    std::string _contentType;
+    if (contentType.size())
+    {
+	_contentType = "Content-Type: " + contentType;
+	list = curl_slist_append(list, _contentType.c_str());
+    }
+
+    curl_easy_setopt(curl, CURLOPT_HTTPHEADER, list);
 
     if (POSTData.size())
-	reply = networkManager.post(request, POSTData.c_str());
-    else
-	reply = networkManager.get(request);
-
-    QEventLoop loop;
-
-    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
-    // Handled just below
-    QObject::connect(reply, &QNetworkReply::errorOccurred, &loop, &QEventLoop::quit);
-    QObject::connect(reply, &QNetworkReply::downloadProgress, &loop, downloadProgress);
-
-    loop.exec();
-    
-    QByteArray location = reply->rawHeader("Location");
-    if (location.size() != 0)
     {
-	GOUROU_LOG(gourou::DEBUG, "New location");
+	curl_easy_setopt(curl, CURLOPT_POST, 1L);
-	return sendHTTPRequest(location.constData(), POSTData, contentType, responseHeaders);
+	curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, POSTData.size());
+	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, POSTData.data());
     }
 
-    if (reply->error() != QNetworkReply::NoError)
+    if (fd)
-	EXCEPTION(gourou::CLIENT_NETWORK_ERROR, "Error " << reply->errorString().toStdString());
+    {
-
+	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlReadFd);
-    QList<QByteArray> headers = reply->rawHeaderList();
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&fd);
-    for (int i = 0; i < headers.size(); ++i) {
+    }
-	if (gourou::logLevel >= gourou::DEBUG)
+    else
-	    std::cout << headers[i].constData() << " : "  << reply->rawHeader(headers[i]).constData() << std::endl;
+    {
-	if (responseHeaders)
+	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curlRead);
-	    (*responseHeaders)[headers[i].constData()] = reply->rawHeader(headers[i]).constData();
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&replyData);
     }
     
-    replyData = reply->readAll();
+    curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, curlHeaders);
-    if (replyData.size() >= DISPLAY_THRESHOLD && gourou::logLevel >= gourou::WARN)
+    curl_easy_setopt(curl, CURLOPT_HEADERDATA, (void*)responseHeaders);
+    
+    curl_easy_setopt(curl, CURLOPT_XFERINFOFUNCTION, downloadProgress);
+    curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
+
+    for (int i=0; i<HTTP_REQ_MAX_RETRY; i++)
+    {
+	prevDownloadedBytes = downloadedBytes;
+	if (downloadedBytes)
+	    curl_easy_setopt(curl, CURLOPT_RESUME_FROM, downloadedBytes);
+	    
+	res = curl_easy_perform(curl);
+
+	// Connexion failed, wait & retry
+	if (res == CURLE_COULDNT_CONNECT)
+	{
+	    GOUROU_LOG(gourou::WARN, "\nConnection failed, attempt " << (i+1) << "/" << HTTP_REQ_MAX_RETRY);	    
+	}
+	// Transfer failed but some data has been received
+	// --> try again without incrementing tries
+	else if (res == CURLE_RECV_ERROR)
+	{
+	    if (prevDownloadedBytes != downloadedBytes)
+	    {
+		GOUROU_LOG(gourou::WARN, "\nConnection broken, but data received, try again");	    
+		i--;
+	    }
+	    else
+		GOUROU_LOG(gourou::WARN, "\nConnection broken and no data received, attempt " << (i+1) << "/" << HTTP_REQ_MAX_RETRY);
+	}
+	// Other error --> fail
+	else
+	    break;
+
+	// Wait a little bit (250ms * i)
+	usleep((250 * 1000) * (i+1));
+    }
+    
+    curl_slist_free_all(list);
+    curl_easy_cleanup(curl);
+   
+    if (res != CURLE_OK)
+	EXCEPTION(gourou::CLIENT_NETWORK_ERROR, "Error " << curl_easy_strerror(res));
+    
+    if ((downloadedBytes >= DISPLAY_THRESHOLD || replyData.size() >= DISPLAY_THRESHOLD) &&
+	gourou::logLevel >= gourou::WARN)
 	std::cout << std::endl;
-    if (reply->rawHeader("Content-Type") == "application/vnd.adobe.adept+xml")
+
+    if ((*responseHeaders)["Content-Type"] == "application/vnd.adobe.adept+xml")
     {
 	GOUROU_LOG(gourou::DEBUG, ">>> " << std::endl << replyData.data());
     }
 	
-    return std::string(replyData.data(), replyData.length());
+    return std::string((char*)replyData.data(), replyData.length());
 }
 
 void DRMProcessorClientImpl::RSAPrivateEncrypt(const unsigned char* RSAKey, unsigned int RSAKeyLength,

utils/drmprocessorclientimpl.h

@@ -46,7 +46,7 @@ public:
     virtual void randBytes(unsigned char* bytesOut, unsigned int length);
 
     /* HTTP interface */
-    virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0);
+    virtual std::string sendHTTPRequest(const std::string& URL, const std::string& POSTData=std::string(""), const std::string& contentType=std::string(""), std::map<std::string, std::string>* responseHeaders=0, int fd=0, bool resume=false);
 
     virtual void RSAPrivateEncrypt(const unsigned char* RSAKey, unsigned int RSAKeyLength,
 				   const RSA_KEY_TYPE keyType, const std::string& password,

utils/utils_common.cpp

@@ -0,0 +1,127 @@
+/*
+  Copyright (c) 2022, Grégory Soutadé
+
+  All rights reserved.
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+  
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+  * Neither the name of the copyright holder nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+  
+  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <limits.h>
+
+#include <iostream>
+
+#include <libgourou.h>
+#include <libgourou_common.h>
+#include "utils_common.h"
+
+static const char* defaultDirs[]  = {
+    ".adept/",
+    "./adobe-digital-editions/",
+    "./.adobe-digital-editions/"
+};
+
+void version(void)
+{
+    std::cout << "Current libgourou version : " << gourou::DRMProcessor::VERSION << std::endl ;
+}
+
+bool fileExists(const char* filename)
+{
+    struct stat _stat;
+    int ret = stat(filename, &_stat);
+
+    return (ret == 0);
+}
+
+const char* findFile(const char* filename, bool inDefaultDirs)
+{
+    if (fileExists(filename))
+	return strdup(filename);
+
+    if (!inDefaultDirs) return 0;
+    
+    for (int i=0; i<(int)ARRAY_SIZE(defaultDirs); i++)
+    {
+	std::string path = std::string(defaultDirs[i]) + filename;
+	if (fileExists(path.c_str()))
+	    return strdup(path.c_str());
+    }
+    
+    return 0;
+}
+
+// https://stackoverflow.com/questions/2336242/recursive-mkdir-system-call-on-unix
+void mkpath(const char *dir)
+{
+    char tmp[PATH_MAX];
+    char *p = NULL;
+    size_t len;
+
+    snprintf(tmp, sizeof(tmp),"%s",dir);
+    len = strlen(tmp);
+    if (tmp[len - 1] == '/')
+        tmp[len - 1] = 0;
+    for (p = tmp + 1; *p; p++)
+        if (*p == '/') {
+            *p = 0;
+            mkdir(tmp, S_IRWXU);
+            *p = '/';
+        }
+    mkdir(tmp, S_IRWXU);
+}
+
+void fileCopy(const char* in, const char* out)
+{
+    char buffer[4096];
+    int ret, fdIn, fdOut;
+
+    fdIn = open(in, O_RDONLY);
+
+    if (!fdIn)
+	EXCEPTION(gourou::CLIENT_FILE_ERROR, "Unable to open " << in);
+    
+    fdOut = gourou::createNewFile(out);
+    
+    if (!fdOut)
+    {
+	close (fdIn);
+	EXCEPTION(gourou::CLIENT_FILE_ERROR, "Unable to open " << out);
+    }
+
+    while (true)
+    {
+	ret = ::read(fdIn, buffer, sizeof(buffer));
+	if (ret <= 0)
+	    break;
+	::write(fdOut, buffer, ret);
+    }
+
+    close (fdIn);
+    close (fdOut);
+}

utils/utils_common.h

@@ -0,0 +1,67 @@
+/*
+  Copyright (c) 2022, Grégory Soutadé
+
+  All rights reserved.
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+  
+  * Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+  * Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+  * Neither the name of the copyright holder nor the
+    names of its contributors may be used to endorse or promote products
+    derived from this software without specific prior written permission.
+  
+  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
+  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _UTILS_COMMON_H_
+#define _UTILS_COMMON_H_
+
+#define LOANS_DIR            "loans/"
+#define ID_HASH_SIZE         16
+
+#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
+
+/**
+ * @brief Display libgourou version
+ */
+void version(void);
+
+/**
+ * @brief Find a given filename in current directory and/or in default directories
+ *
+ * @param filename        Filename to search
+ * @param inDefaultDirs   Search is default directories or not
+ *
+ * @return A copy of full path
+ */
+const char* findFile(const char* filename, bool inDefaultDirs=true);
+
+/**
+ * @brief Does the file (or directory exists)
+ */
+bool fileExists(const char* filename);
+
+/**
+ * @brief Recursively created dir
+ */
+void mkpath(const char *dir);
+
+/**
+ * @brief Copy file in into file out
+ */
+void fileCopy(const char* in, const char* out);
+
+#endif