Remove QtCore and QtNetwork, replace them by libcurl + libc

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 = open(out, O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH);
+    
+    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);
+}