1 files changed, 232 insertions, 0 deletions
diff --git a/infomanager.cpp b/infomanager.cpp
new file mode 100644
index 000000000..275c70c6e
--- /dev/null
+++ b/infomanager.cpp
@@ -0,0 +1,232 @@
+/*
+	Copyright 2012 bigbiff/Dees_Troy TeamWin
+	This file is part of TWRP/TeamWin Recovery Project.
+
+	TWRP 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.
+
+	TWRP 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 TWRP.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string>
+#include <map>
+#include <fstream>
+#include <sstream>
+
+#include "infomanager.hpp"
+#include "twcommon.h"
+#include "partitions.hpp"
+#include "set_metadata.h"
+
+using namespace std;
+
+InfoManager::InfoManager() {
+	file_version = 0;
+	is_const = false;
+}
+
+InfoManager::InfoManager(const string& filename) {
+	file_version = 0;
+	is_const = false;
+	SetFile(filename);
+}
+
+InfoManager::~InfoManager(void) {
+	Clear();
+}
+
+void InfoManager::SetFile(const string& filename) {
+	File = filename;
+}
+
+void InfoManager::SetFileVersion(int version) {
+	file_version = version;
+}
+
+void InfoManager::SetConst(void) {
+	is_const = true;
+}
+
+void InfoManager::Clear(void) {
+	mValues.clear();
+}
+
+int InfoManager::LoadValues(void) {
+	string str;
+
+	// Read in the file, if possible
+	FILE* in = fopen(File.c_str(), "rb");
+	if (!in) {
+		LOGINFO("InfoManager file '%s' not found.\n", File.c_str());
+		return -1;
+	} else {
+		LOGINFO("InfoManager loading from '%s'.\n", File.c_str());
+	}
+
+	if (file_version) {
+		int read_file_version;
+		if (fread(&read_file_version, 1, sizeof(int), in) != sizeof(int))
+			goto error;
+		if (read_file_version != file_version) {
+			LOGINFO("InfoManager file version has changed, not reading file\n");
+			goto error;
+		}
+	}
+
+	while (!feof(in)) {
+		string Name;
+		string Value;
+		unsigned short length;
+		char array[513];
+
+		if (fread(&length, 1, sizeof(unsigned short), in) != sizeof(unsigned short))	goto error;
+		if (length >= 512)																goto error;
+		if (fread(array, 1, length, in) != length)										goto error;
+		array[length+1] = '\0';
+		Name = array;
+
+		if (fread(&length, 1, sizeof(unsigned short), in) != sizeof(unsigned short))	goto error;
+		if (length >= 512)																goto error;
+		if (fread(array, 1, length, in) != length)										goto error;
+		array[length+1] = '\0';
+		Value = array;
+
+		map<string, string>::iterator pos;
+
+		pos = mValues.find(Name);
+		if (pos != mValues.end()) {
+			pos->second = Value;
+		} else {
+			mValues.insert(make_pair(Name, Value));
+		}
+	}
+error:
+	fclose(in);
+	return 0;
+}
+
+int InfoManager::SaveValues(void) {
+	if (File.empty())
+		return -1;
+
+	PartitionManager.Mount_By_Path(File, true);
+	LOGINFO("InfoManager saving '%s'\n", File.c_str());
+	FILE* out = fopen(File.c_str(), "wb");
+	if (!out)
+		return -1;
+
+	if (file_version) {
+		fwrite(&file_version, 1, sizeof(int), out);
+	}
+
+	map<string, string>::iterator iter;
+	for (iter = mValues.begin(); iter != mValues.end(); ++iter) {
+		unsigned short length = (unsigned short) iter->first.length() + 1;
+		fwrite(&length, 1, sizeof(unsigned short), out);
+		fwrite(iter->first.c_str(), 1, length, out);
+		length = (unsigned short) iter->second.length() + 1;
+		fwrite(&length, 1, sizeof(unsigned short), out);
+		fwrite(iter->second.c_str(), 1, length, out);
+	}
+	fclose(out);
+	tw_set_default_metadata(File.c_str());
+	return 0;
+}
+
+int InfoManager::GetValue(const string& varName, string& value) {
+	string localStr = varName;
+
+	map<string, string>::iterator pos;
+	pos = mValues.find(localStr);
+	if (pos == mValues.end())
+		return -1;
+
+	value = pos->second;
+	return 0;
+}
+
+int InfoManager::GetValue(const string& varName, int& value) {
+	string data;
+
+	if (GetValue(varName,data) != 0)
+		return -1;
+
+	value = atoi(data.c_str());
+	return 0;
+}
+
+int InfoManager::GetValue(const string& varName, float& value) {
+	string data;
+
+	if (GetValue(varName,data) != 0)
+		return -1;
+
+	value = atof(data.c_str());
+	return 0;
+}
+
+unsigned long long InfoManager::GetValue(const string& varName, unsigned long long& value) {
+	string data;
+
+	if (GetValue(varName,data) != 0)
+		return -1;
+
+	value = strtoull(data.c_str(), NULL, 10);
+	return 0;
+}
+
+// This function will return an empty string if the value doesn't exist
+string InfoManager::GetStrValue(const string& varName) {
+	string retVal;
+
+	GetValue(varName, retVal);
+	return retVal;
+}
+
+// This function will return 0 if the value doesn't exist
+int InfoManager::GetIntValue(const string& varName) {
+	string retVal;
+	GetValue(varName, retVal);
+	return atoi(retVal.c_str());
+}
+
+int InfoManager::SetValue(const string& varName, const string& value) {
+	// Don't allow empty names or numerical starting values
+	if (varName.empty() || (varName[0] >= '0' && varName[0] <= '9'))
+		return -1;
+
+	map<string, string>::iterator pos;
+	pos = mValues.find(varName);
+	if (pos == mValues.end())
+		mValues.insert(make_pair(varName, value));
+	else if (!is_const)
+		pos->second = value;
+
+	return 0;
+}
+
+int InfoManager::SetValue(const string& varName, const int value) {
+	ostringstream valStr;
+	valStr << value;
+	return SetValue(varName, valStr.str());
+}
+
+int InfoManager::SetValue(const string& varName, const float value) {
+	ostringstream valStr;
+	valStr << value;
+	return SetValue(varName, valStr.str());
+}
+
+int InfoManager::SetValue(const string& varName, const unsigned long long& value) {
+	ostringstream valStr;
+	valStr << value;
+	return SetValue(varName, valStr.str());
+}