git-svn-id: svn://db.shs.com.ru/pip@554 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

CMakeLists.txt

@@ -30,6 +30,7 @@ endmacro()
 
 set(PIP_SRC_MAIN  "src_main")
 set(PIP_SRC_CRYPT "src_crypt")
+set(PIP_SRC_COMPRESS "src_compress")
 set(PIP_SRC_USB   "src_usb")
 set(PIP_SRC_FFTW  "src_fftw")
 set(PIP_LIBS_TARGETS pip)
@@ -94,6 +95,9 @@ endforeach(F)
 # Crypt lib
 gather_src("${PIP_SRC_CRYPT}" CPP_LIB_CRYPT HDRS PHDRS)
 
+# Compress lib
+gather_src("${PIP_SRC_COMPRESS}" CPP_LIB_COMPRESS HDRS PHDRS)
+
 # USB lib
 gather_src("${PIP_SRC_USB}" CPP_LIB_USB HDRS PHDRS)
 
@@ -291,6 +295,20 @@ else()
 endif()
 
 
+# Check if PIP support compress/decompress using zlib library
+find_library(zlib_FOUND NAMES zlib z)
+if(zlib_FOUND)
+	message(STATUS "Building with zlib compress support")
+	add_definitions(-DPIP_COMPRESS)
+	add_library(pip_compress SHARED ${CPP_LIB_COMPRESS})
+	target_link_libraries(pip_compress pip ${zlib_FOUND})
+	list(APPEND LIBS_STATUS zlib)
+	list(APPEND PIP_LIBS_TARGETS pip_compress)
+else()
+	message(STATUS "Building without compress support")
+endif()
+
+
 # Check if PIP support fftw3 for PIFFT using in math module
 set(FFTW_LIB_NAME fftw3)
 set(FFTW_LIB_SUFFIXES "" "f" "l" "q")
@@ -341,7 +359,7 @@ endif()
 
 # Test program
 add_executable(pip_test "main.cpp")
-target_link_libraries(pip_test pip)
+target_link_libraries(pip_test pip pip_compress)
 
 
 # Install

main.cpp

@@ -1,11 +1,19 @@
 #include "pip.h"
-#include "picodeparser.h"
-#include "pivector2d.h"
+#include "picompress.h"
 
 
 int main(int argc, char *argv[]) {
-	PICodeParser cp;
-	cp.parseFile("cp.h");
+	PIString s = PIString::fromUTF8("hello, привет привет привет привет привет привет");
+	PIByteArray ba = s.toUTF8();
+	piCout << "original  " << ba.toHex();
+	ba = piCompress(ba);
+	piCout << "compress  " << ba.toHex();
+	ba = piDecompress(ba);
+	piCout << "decompress" << ba.toHex();
+	piCout << PIString::fromUTF8(ba);
+	ba = PIByteArray(16);
+	piCout << ba.toHex() << ba.size();
+	piCout << piCompress(ba).toHex() << piCompress(ba).size();
 	/*PIString s = PIString::fromUTF8("hello, привет");
 	piCout << s;
 	PIByteArray ba = s.toUTF8();

src_compress/picompress.cpp

@@ -0,0 +1,69 @@
+/*
+    PIP - Platform Independent Primitives
+    Cryptographic class using lib Sodium
+	Copyright (C) 2017 Andrey Bychkov work.a.b@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "picompress.h"
+#ifdef PIP_COMPRESS
+#  include <zlib.h>
+#endif
+
+
+PIByteArray piCompress(const PIByteArray & ba, int level) {
+#ifdef PIP_COMPRESS
+	PIByteArray zba;
+	zba.resize(ba.size() + 128);
+	int ret = 0;
+	ulong sz = zba.size();
+	ret = compress2(zba.data(), &sz, ba.data(), ba.size(), level);
+	if (ret != Z_OK) {
+		piCout << "[PICompress]" << "Error: invalid input or not enought memory";
+		return ba;
+	}
+	zba.resize(sz);
+	zba << ullong(ba.size());
+	return zba;
+#else
+	piCout << "[PICompress]" << "Warning: PICompress is disabled, to enable install zlib library and build pip_compress library";
+#endif
+	return ba;
+}
+
+
+PIByteArray piDecompress(const PIByteArray & zba) {
+#ifdef PIP_COMPRESS
+	ullong sz;
+	if (zba.size() < sizeof(ullong)) {
+		piCout << "[PICompress]" << "Error: invalid input";
+		return zba;
+	}
+	PIByteArray ba(zba.data(zba.size() - sizeof(ullong)), sizeof(ullong));
+	ba >> sz;
+	ba.resize(sz);
+	int ret = 0;
+	ulong s = sz;
+	ret = uncompress(ba.data(), &s, zba.data(), zba.size());
+	if (ret != Z_OK) {
+		piCout << "[PICompress]" << "Error: invalid input or not enought memory";
+		return zba;
+	}
+	return ba;
+#else
+	piCout << "[PICompress]" << "Warning: PICompress is disabled, to enable install zlib library and build pip_compress library";
+#endif
+	return zba;
+}

src_crypt/picrypt.cpp

@@ -34,7 +34,7 @@ PICrypt::PICrypt() {
 	randombytes_buf(key_.data(), key_.size());
 	randombytes_buf(nonce_.data(), nonce_.size());
 #else
-	piCout << "[PICrypt]" << "Warning: PICrypt is disabled, to enable install libsodium-dev library and build pip with -DCRYPT=1";
+	piCout << "[PICrypt]" << "Warning: PICrypt is disabled, to enable install libsodium-dev library and build pip_crypt library";
 #endif
 }
 

src_main/math/picompress.h

@@ -0,0 +1,10 @@
+#ifndef PICOMPRESS_H
+#define PICOMPRESS_H
+
+#include "pibytearray.h"
+
+PIByteArray piCompress(const PIByteArray & ba, int level = 6);
+
+PIByteArray piDecompress(const PIByteArray & zba);
+
+#endif // PICOMPRESS_H

src_main/piversion.h

@@ -3,7 +3,7 @@
 #define PIVERSION_H
 
 #define PIP_VERSION_MAJOR      1
-#define PIP_VERSION_MINOR      0
+#define PIP_VERSION_MINOR      1
 #define PIP_VERSION_REVISION   0
 #define PIP_VERSION_SUFFIX     ""