add mtp responder to TWRP.

Big thanks to Dees_Troy for helping with the implementation.

Change-Id: I6c9c522b9c9de5dc139e2ecb0141008182ba07f0

mtp/node.cpp

@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2014 TeamWin - bigbiff and Dees_Troy mtp database conversion to C++
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+#include <vector>
+#include <sstream>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <limits.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <libgen.h>
+
+#include "btree.hpp"
+#include "mtp.h"
+#include "MtpDebug.h"
+
+
+Node::Node() {
+	mtpid= -1;
+	path = "";
+	left = NULL;
+	right = NULL;
+	parent = NULL;
+	mtpparentid = 0;
+}
+
+void Node::setMtpid(int aMtpid) { mtpid = aMtpid; }
+void Node::setPath(std::string aPath) { path = aPath; }
+void Node::setLeft(Node* aLeft) { left = aLeft; }
+void Node::setRight(Node* aRight) { right = aRight; }
+void Node::setParent(Node* aParent) { parent = aParent; }
+void Node::setMtpParentId(int id) {
+	mtpparentid = id;
+	MTPD("setting mtpparentid: %i on mtpid: %i\n", mtpparentid, mtpid);
+}
+int Node::Mtpid() { return mtpid; }
+int Node::getMtpParentId() { return mtpparentid; }
+std::string Node::getPath() { return path; }
+Node* Node::Left() { return left; }
+Node* Node::Right() { return right; }
+Node* Node::Parent() { return parent; }
+
+uint64_t Node::getIntProperty(uint64_t property) {
+	for (unsigned index = 0; index < mtpProp.size(); ++index) {
+		if (mtpProp[index].property == property)
+			return mtpProp[index].valueInt;
+	}
+	MTPE("Node::getIntProperty failed to find property %x, returning -1\n", (unsigned)property);
+	return -1;
+}
+
+void Node::addProperty(uint64_t property, uint64_t valueInt, std::string valueStr, int dataType) {
+	MTPD("adding str property: %lld, valueInt: %lld, valueStr: %s, dataType: %d\n", property, valueInt, valueStr.c_str(), dataType);
+	struct mtpProperty prop;
+	prop.property = property;
+	prop.valueInt = valueInt;
+	prop.valueStr = valueStr;
+	prop.dataType = dataType;
+	mtpProp.push_back(prop);
+}
+
+void Node::updateProperty(uint64_t property, uint64_t valueInt, std::string valueStr, int dataType) {
+	for (unsigned i = 0; i < mtpProp.size(); i++) {
+		if (mtpProp[i].property == property) {
+			mtpProp[i].valueInt = valueInt;
+			mtpProp[i].valueStr = valueStr;
+			mtpProp[i].dataType = dataType;
+			return;
+		}
+	}
+	addProperty(property, valueInt, valueStr, dataType);
+}
+
+std::vector<Node::mtpProperty>& Node::getMtpProps() {
+	return mtpProp;
+}
+
+void Node::addProperties(int storageID, int parent_object) {
+	struct stat st;
+	int mFormat = 0;
+	uint64_t puid;
+
+	std::string mtpidStr = static_cast<std::ostringstream*>( &(std::ostringstream() << mtpid) )->str();
+	std::string storageIDStr = static_cast<std::ostringstream*>( &(std::ostringstream() << storageID) )->str();
+	std::string puidStr = storageIDStr + mtpidStr;
+	if ( ! (std::istringstream(puidStr) >> puid) ) puid = 0;
+	stat(getPath().c_str(), &st);
+	std::string mtimeStr = static_cast<std::ostringstream*>( &(std::ostringstream() << st.st_mtime) )->str();
+	std::string atimeStr = static_cast<std::ostringstream*>( &(std::ostringstream() << st.st_atime) )->str();
+	if (S_ISDIR(st.st_mode)) {
+		mFormat = MTP_FORMAT_ASSOCIATION; // folder
+	}
+	else {
+		mFormat = MTP_FORMAT_UNDEFINED;   // file
+	}
+	addProperty(MTP_PROPERTY_STORAGE_ID, storageID, "", MTP_TYPE_UINT32);
+	addProperty(MTP_PROPERTY_OBJECT_FORMAT, mFormat, "", MTP_TYPE_UINT16);
+	addProperty(MTP_PROPERTY_PROTECTION_STATUS, 0, "", MTP_TYPE_UINT16);
+	addProperty(MTP_PROPERTY_OBJECT_SIZE, st.st_size, "", MTP_TYPE_UINT64);
+	addProperty(MTP_PROPERTY_OBJECT_FILE_NAME, 0, basename(getPath().c_str()), MTP_TYPE_STR);
+	MTPD("mtpid: %i, filename: '%s', parent object: %i\n", mtpid, basename(getPath().c_str()), parent_object);
+	addProperty(MTP_PROPERTY_DATE_MODIFIED, 0, mtimeStr, MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_PARENT_OBJECT, parent_object, "", MTP_TYPE_UINT32);
+	addProperty(MTP_PROPERTY_PERSISTENT_UID, puid, "", MTP_TYPE_UINT128);
+	addProperty(MTP_PROPERTY_NAME, 0, basename(getPath().c_str()), MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_DISPLAY_NAME, 0, basename(getPath().c_str()), MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_DATE_ADDED, 0, atimeStr, MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_DESCRIPTION, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_ARTIST, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_ALBUM_NAME, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_ALBUM_ARTIST, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_TRACK, 0, "", MTP_TYPE_UINT16);
+	addProperty(MTP_PROPERTY_ORIGINAL_RELEASE_DATE, 0, "00101T000000", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_DURATION, 0, "", MTP_TYPE_UINT32);
+	addProperty(MTP_PROPERTY_GENRE, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_COMPOSER, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_ARTIST, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_ALBUM_NAME, 0, "", MTP_TYPE_STR);
+	addProperty(MTP_PROPERTY_DURATION, 0, "", MTP_TYPE_UINT32);
+	addProperty(MTP_PROPERTY_DESCRIPTION, 0, "", MTP_TYPE_STR);
+}