Difference between revisions of "SOAP API"

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1. '''4shared API.'''  
 
1. '''4shared API.'''  
 +
  
 
Service 4shared is a usual web-service, '''WSDL description''' of which is here: https://api.4shared.com/jax2/DesktopApp?wsdl.  
 
Service 4shared is a usual web-service, '''WSDL description''' of which is here: https://api.4shared.com/jax2/DesktopApp?wsdl.  
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'''2. Tools for Development.'''
 
'''2. Tools for Development.'''
 +
  
 
Development of applications for Android is possible on any platform, which allows Andrid SDK setup.  
 
Development of applications for Android is possible on any platform, which allows Andrid SDK setup.  
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[ image3 ]
 
[ image3 ]
  
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----
 
  
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=== Blackberry ===
 
=== Blackberry ===

Revision as of 14:48, 21 April 2011

Welcome to 4shared SOAP API documentation!

Dear developer!

We are glad to introduce you official 4shared API Program. With the 4shared API, you can get started developing your application for Mobile Phones (iPhone, Android, Symbian, Blackberry, Windows mobile), Windows, Mac, iPad, and Linux today.

You may easily use more than 50 API functions to perform any actions with 4shared like - access web account, upload\download files, search files, create and delete folders, etc.

4shared API is totaly free! All required samples you may find at 4shared API documentation. Any questions regarding 4shared developer program you may discuss at our forum.

Every month we will pick best app with 4shared API and award developer for $5,000! We pay $5,000/month for best app.

Contents


Sources

4shared Project at google code.google.com

WSDL can be obtained from here or please check here for more secure SOAPing.

You can browse java sources from mercurial repositories at http://code.google.com/p/4shared-api/source/browse/. Or use hg clone https://4shared-api.googlecode.com/hg/ 4shared-api to get local copy of sources.

Quick start guide

To start working with 4shared SOAP API you should have a copy of mercurial for your favorite OS, Java SDK, ant building system. Some Java IDE is also recomended.

1. Get sources from google.code.com: 

 hg clone https://4shared-api.googlecode.com/hg/ 4shared-api

2. Go to created folder and build project: 

 ant

3. Try to use some of provided examples: 

 cd dist/demo
 ./signup <username> <password>
 ./createfolder <username> <password> <foldername>
 ./upload <username> <password> <path to file>
 ./browse <login> <password>

4. Learn how this demos have been written. All demo sources are situated in demo/com/pmstation/shared/soap/demo

5. Write your own fresh and brilliant application

Samples

Java:

CreateFolderDemo.java

DeleteFileDemo.java

Demo.java

DownloadDemo.java

EnumerateItemsDemo.java

EnumerateItemsDemo2.java

LoginDemo.java

RecycleBinDemo.java

RenameDemo.java

SignupDemo.java

StringUtils.java

UploadDemo.java

iOS

Every application in iOS can use 4shared service. The client can interact with 4shared server via SOAP protocol, by means of calling up 4shared API functions. These functions may be used to request for the content of your account, get the necessary links to files, and edit the file structure and the directory properties on the server. The full description of the api is provided here (link to http://help.4shared.com/index.php/SOAP_API). The SOAP-protocol may be checked here (link to http://en.wikipedia.org/wiki/SOAP).

To call up 4shared api-function, it’s necessary to send the XML-message to server http://api.4shared.com/jax2/DesktopApp SOAP.

The common template for the message is the following: 

|<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" <br>xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<soapenv:Body>

		<function xmlns="http://api.soap.shared.pmstation.com/">
			<arg0 xmlns="">login</arg0>
			<arg1 xmlns="">password</arg1>
			<arg2 xmlns="">arg1</arg2>
			...
		</function>
	</soapenv:Body>
</soapenv:Envelope>" ,where “function” is the name of the called function.

Having indicated the function, one should enlist its arguments. There’re only 2 arguments in almost all 4shared api-functions – these are login and password.

In response to the call, 4shared server will return the results of the function, the SOAP-message in XML-format: 

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
	<S:Body>
		<ns2:functionResponse xmlns:ns2="http://api.soap.shared.pmstation.com/">
			<return>
				result
			</return>
		</ns2: functionResponse>
	</S:Body>
</S:Envelope> , where “result” is the result of calling up the “function”.

As an example, we need to get the content of the directory. To do this, we need to call the function “getItems” (link to http://help.4shared.com/index.php/SOAP_API#getItems).

Its first 2 arguments are, as usual, login and password. The 3rd one is the ID of the requested directory.

The body of the relative SOAP-message will be as follows: 

<getItems xmlns="http://api.soap.shared.pmstation.com/">
	<arg0 xmlns="">username@server.com</arg0>
	<arg1 xmlns="">*********</arg1>
	<arg2 xmlns="">123456789</arg2>
</getItems>

In response, 4shared server will return the array with the elements of directory: 

<item>
	<date>(date of file creation)</date>
	<directory>(true – if file is a directory, otherwise - false)</directory>
	<downloadCount>(the number of file downloads)</downloadCount>
	<downloadLink>(link for the file-download from 4shared-server)</downloadLink>
	<id>(file ID)</id>
	<md5>(md5-hash)</md5>
	<name>(name)</name>
	<parentId>(parent directory ID)</parentId>
	<size>(size)</size>
	…
</item>

Let’s consider the example of the simple application, which allows the user to browse the content of his/her account.

The 1st thing, which should be done, when starting the program, is to authorize (login) on 4shared server by means of calling up the function “login” (link to http://help.4shared.com/index.php/SOAP_API#login ).

If authorization is passed successfully, the next step will be the request for the root account directory by means of calling up the function “getRoot” (link to http://help.4shared.com/index.php/SOAP_API#getRoot). The calling result will be the structure “item”, described above.

To store received information, I’ve created subclass File: 

@interface File : NSObject
{
	NSUInteger _id;
	NSUInteger _parentId;
	NSString *_name;
	NSUInteger _size;
	NSString *_link;
	BOOL _dir;
    
	NSArray *_content;
}

…

@end

Now that we have the root directory ID, we can use the function “getItems”, to get its content, and then the content of any subdirectory.

To create the XML-formatted message and the parsing of received result, it’s possible to use any XML – parser. In the demo-sample, I’ve used GDataXML-parser from Google Data APIs Objective-C Client Library http://code.google.com/p/gdata-objectivec-client/).

The function to generate the message may be as follows: 

+ (NSURLRequest*)soapRequestWithFunction:(NSString*)function andParams:(NSArray*)params
{
   	GDataXMLElement *xmlFunction = [GDataXMLNode elementWithName:function];
	GDataXMLNode *xmlNS = [GDataXMLNode namespaceWithName:nil stringValue:@"http://api.soap.shared.pmstation.com/"];
	[xmlFunction addNamespace:xmlNS];
	
	for (NSUInteger i = 0; i < [params count]; i++)
	{
		NSString *elementName = [NSString stringWithFormat:@"arg%lu", i];
		GDataXMLElement *arg = [GDataXMLNode elementWithName:elementName];
		NSString *param = (NSString*)[params objectAtIndex:i];
		[arg setStringValue:(NSString*) param];
		GDataXMLNode *attrib = [GDataXMLNode attributeWithName:@"xmlns" stringValue:@""];
		[arg addAttribute:attrib];
		[xmlFunction addChild:arg];
	}
    
	GDataXMLElement *body = [GDataXMLNode elementWithName:@"soapenv:Body"];
	[body addChild:xmlFunction];
	
	GDataXMLElement *soapEnvelope = [GDataXMLNode elementWithName:@"soapenv:Envelope"];
	GDataXMLNode *soapNS1 = [GDataXMLNode namespaceWithName:@"soapenv" stringValue:@"http://schemas.xmlsoap.org/soap/envelope/"];
	GDataXMLNode *soapNS2 = [GDataXMLNode namespaceWithName:@"xsd" stringValue:@"http://www.w3.org/2001/XMLSchema"];
	GDataXMLNode *soapNS3 = [GDataXMLNode namespaceWithName:@"xsi" stringValue:@"http://www.w3.org/2001/XMLSchema-instance"];
	[soapEnvelope setNamespaces:[NSArray arrayWithObjects:soapNS1, soapNS2, soapNS3, nil]];
	[soapEnvelope addChild:body];
	
	GDataXMLDocument *doc = [[GDataXMLDocument alloc] initWithRootElement:soapEnvelope];
	[doc setVersion:@"1.0"];
	[doc setCharacterEncoding:@"UTF-8"];
	NSData *data = [doc XMLData];
	[doc release];
	NSString *dataLen = [NSString stringWithFormat:@"%lu", [data length]];
	
	NSURL *url = [NSURL URLWithString:@"http://api.4shared.com/jax2/DesktopApp"];
	NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
	[request addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
	[request addValue:@"" forHTTPHeaderField:@"SOAPAction"];
	[request addValue:dataLen forHTTPHeaderField:@"Content-Length"];
	[request setHTTPMethod:@"POST"];
	[request setHTTPBody: data];
	
	return request;
}

The content of the directory is shown in the table (class FilesViewController). I show its name and size in the cell, related to the file accordingly: 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
	…
	cell.accessoryType = file.isDir ? UITableViewCellAccessoryDisclosureIndicator : UITableViewCellAccessoryNone;
	cell.imageView.image = file.isDir ? [UIImage imageNamed:@"dir.png"] : nil;
	cell.textLabel.text = file.name;
	cell.detailTextLabel.text = file.isFile ? [NSString stringWithFormat:@"%.2f Kb", (CGFloat) file.size / 1024.0] : nil;
	…
}

All content is opened via tap in the cell with directory. The page with the following link is opened in the browser via tap on the file: 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
	…
	if (file.isDir)
	{
		FilesViewController *fvc = [[FilesViewController alloc] initWithFile:file];
	        [self.navigationController pushViewController:fvc animated:YES];
        	[fvc release];
	}
	else
	{
        	[[UIApplication sharedApplication] openURL:[NSURL URLWithString:file.link]];
	}
	…
}

The demo-sample can be downloaded here (link to the demo-project archive).

To start the sample application, enter demo-Prefix.pch in the file, enter your login and password from the site 4shared (macros LOGIN and PASSWORD).

Symbian (QT)

Every application can interact with 4shared server via SOAP protocol, by means of calling up 4shared API functions.

These functions may be used to request for the content of your account, get the necessary links to files, and edit the file structure and the directory properties on the server.

The full description of the api is provided here (link to http://help.4shared.com/index.php/SOAP_API).

The SOAP-protocol may be checked here (link to http://en.wikipedia.org/wiki/SOAP).

As an SDK for creating applications for mobile devices, let’s take "Nokia Qt SDK 1.0", which can be got here (http://www.forum.nokia.com/Develop/Qt/). This package also includes IDE "Qt Creator", which we will use.

In the beginning, let’s create the new project with type “Mobile application Qt” and name it 4shared. In the visual editor we’ll add “List widget” in the main window, which will include the elements of the root catalogue, downloaded from 4shared server. In the class MainWindow constructor, in a line

- setCentralWidget(ui->listWidget); - stretch listWidget to the full screen.


To work with SOAP protocol in a more convenient way, we’ll take initial codes from the library QtSOAP and insert them into the project, as this library isn’t included into mobile version.

In addition to that, in order to make the application work with network in Symbian devices, it’s necessary to add the following line in the file 4shared.pro in the part, devoted to the specific Symbian settings: 

-
Symbian {
	...
	TARGET.CAPABILITY += NetworkServices
	...
}
-

Then, we’ll add and initialize members in class MainWindow': 

-
class MainWindow : public QMainWindow
{
	...
    QNetworkAccessManager nam;
    QtSoapHttpTransport http;
	...
};

MainWindow::MainWindow(QWidget *parent) :
	...
    nam(this),
    http(this),
	...
{
	...
    connect(&http, SIGNAL(responseReady()), SLOT(getResponse()));

    http.setNetworkAccessManager(&nam);
    http.setAction("");
    http.setHost("api.4shared.com", 80);
	...
}
-
,which realize (implement) the transfer of our future requests.

The slot getResponse() will be invoked, when the answers to our requests are received.


To download the list of files and subdirectories of the root directory, it’s necessary to perform 3 requests in series:

1. isExistsLoginPassword - authentication

2. getRoot – receipt of information about the root directory

3. getItems – receipt of the list of elements in the defined directory (in our case – root directory ) 

-
class MainWindow : public QMainWindow
{
	...
private slots:
    void getResponse();

private:
    QtSoapMessage initStdSoapMessage(const QString &methodName);

    void authorize();
    void authorizeHandler(const QtSoapType &res);

    void getRoot();
    void getRootHandler(const QtSoapType &res);

    void getItems(long id);
    void getItemsHandler(const QtSoapType &res);

    enum Operation {unknown, authorize_op, getRoot_op, getItems_op};

private:
	...

    Operation operation;

    QString login, password;

    long rootId;
};

void MainWindow::getResponse()
{
    Operation op = operation;
    operation = unknown;

    // Get the response, check for error.
    const QtSoapMessage &resp = http.getResponse();
    if(resp.isFault()) {
        QMessageBox::warning(NULL, "Warning", "SOAP: query failed (" + resp.faultString().value().toString() + ")");
        return;
    }

    // Extract the return value from this method response, check for errors.
    const QtSoapType &res = resp.returnValue();
    if(!res.isValid()) {
        QMessageBox::warning(NULL, "Warning", "SOAP: invalid return value");
        return;
    }

    switch(op)
    {
    case authorize_op:
        authorizeHandler(res);
        break;
    case getRoot_op:
        getRootHandler(res);
        break;
    case getItems_op:
        getItemsHandler(res);
        break;
    case unknown:
        break;
    }
}

QtSoapMessage MainWindow::initStdSoapMessage(const QString &methodName)
{
    QtSoapMessage request;
    request.setMethod(QtSoapQName(methodName, "http://api.soap.shared.pmstation.com/"));
    request.addMethodArgument("arg0", "", login);
    request.addMethodArgument("arg1", "", password);
    return request;
}

void MainWindow::authorize()
{
    QtSoapMessage request = initStdSoapMessage("isExistsLoginPassword");
    operation = authorize_op;
    http.submitRequest(request, "/jax2/DesktopApp");
}

void MainWindow::authorizeHandler(const QtSoapType &res)
{
    bool auth = res.value().toBool();
    if(auth)
    {
       // QMessageBox::information(NULL, "Authorization", "Authorized");
        getRoot();
    }
    else
        QMessageBox::warning(NULL, "Warning", "Invalid user name or password");
}

void MainWindow::getRoot()
{
    QtSoapMessage request = initStdSoapMessage("getRoot");
    operation = getRoot_op;
    http.submitRequest(request, "/jax2/DesktopApp");
}

void MainWindow::getRootHandler(const QtSoapType &res)
{
    rootId = res["id"].toInt();
    getItems(rootId);
}

void MainWindow::getItems(long id)
{
    QtSoapMessage request = initStdSoapMessage("getItems");
    request.addMethodArgument("arg2", "", id);
    operation = getItems_op;
    http.submitRequest(request, "/jax2/DesktopApp");
}

void MainWindow::getItemsHandler(const QtSoapType &res)
{
    for(int i=0; i<res.count(); i++)
    {
        const QtSoapType &item = res[i];

        if(item["removed"].toBool())
            continue;

        QString name;
        if(item["directory"].toBool())
            name = " <dir> ";
        name += item["name"].toString();

        QListWidgetItem *itm = new QListWidgetItem(name);
        itm->setSizeHint(QSize(0, 50));
        ui->listWidget->addItem(itm);
    }
}
-

Demo-sample can be downloaded here (link to the demo-project archive).

To start the sample application, insert your login and password from 4shared in the file MainWindow.cpp (variable login and password).


Android

1. 4shared API.


Service 4shared is a usual web-service, WSDL description of which is here: https://api.4shared.com/jax2/DesktopApp?wsdl.

You can read more about web-services and WSDL' here: http://ru.wikipedia.org/wiki/%D0%92%D0%B5%D0%B1-%D1%81%D0%BB%D1%83%D0%B6%D0%B1%D0%B0, http://ru.wikipedia.org/wiki/WSDL.

Short description of API functions can found here: http://help.4shared.com/index.php/SOAP_API.

To work with SOAP API, you can use direct SOAP-calling, but it’s more convenient to use another library for request parsing. For instance, you can use free library: (http://code.google.com/p/ksoap2-android/).


2. Tools for Development.


Development of applications for Android is possible on any platform, which allows Andrid SDK setup. System requirements can be checked here: http://developer.android.com/sdk/requirements.html.

You can download Android SDK here: http://developer.android.com/sdk/index.html, setup instructions are available here: http://developer.android.com/sdk/installing.html.

The recommended environment for development is Eclipse (http://www.eclipse.org/downloads/) with the plugin for Android (http://developer.android.com/sdk/eclipse-adt.html). Any device with OS Android, or an emulator of the device, included into Android SDK, is suitable for starting the developed application.

Detailed instruction for beginners in app development can be found here: http://developer.android.com/guide/developing/index.html.


3. Step-by-Step Instruction.


Resource http://developer.android.com comprises all necessary information for developers.

The most essential (fundamental) notions are described in the article: http://developer.android.com/guide/topics/fundamentals.html.

Step-by-step instruction of the simple app for 4shared is displayed below.

1) Install a Platform (http://developer.android.com/resources/tutorials/hello-world.html)

2) Create an AVD (http://developer.android.com/resources/tutorials/hello-world.html)

3) Create a New Android Project (http://developer.android.com/resources/tutorials/hello-world.html)

[ image1 ]

4) To insert changes, needed to make the minimum 4shared-application work

To link the ksoap2 library to the project, it’s necessary to create subcatalog libs in the catalogue Hello4shared and place jar-archive of this library there. Then, choose Project > Options in menu Eclipse, and after that select subsection Java Build Path and tab Libraries. Press the button Add JARs and display the path to the library.

[ image2 ]

With the help of menu File > New > Class, let’s create 2 subclasses: AccountItem, representing the user’s file or catalogue on 4shared server, and ForSharedService, with the help of which 4shared API remote methods are called up.

AccountItem is used to desereal data from the network and provides convenient methods to receive information about the file/catalogue, for example, getName() and getDownloadLink() return the filename and the download link accordingly. 

    package com.example.hello4shared;

    import org.ksoap2.serialization.SoapPrimitive;

    /**
     * 4shared account item, representing a file or a directory description data.
     * Implementation includes network serialization functionality.
     */
    public class AccountItem {
	private long id;
	private String name;
	private boolean directory;

	public AccountItem() {
	}

	public long getId() {
	    return id;
	}

	public String getName() {
	    return name;
	}

	public boolean isDirectory() {
	    return directory;
	}

	public String toString() {
	    return directory ? "[" + name + "]" : name;
	}

	public void setProperty(String propName, Object value) {
	    if (value == null) {
		return;
	    }
	    if (value instanceof SoapPrimitive) {
		value = ((SoapPrimitive) value).toString();
	    }

	    if (propName.equals("id")) {
		if (value instanceof Long)
		    id = ((Long) value).longValue();
		else
		    id = Long.parseLong(value.toString());
	    }
	    if (propName.equals("directory")) {
		directory = convertBoolean(value);
	    }
	    else if (propName.equals("name")) {
		name = convertString(value);
	    }
	}

	private boolean convertBoolean(Object val) {
	    if (val == null)
		return false;

	    if (val.toString().toLowerCase().equals("true"))
		return true;
	    else
		return false;
	}

	private String convertString(Object str) {
	    if (!(str instanceof String))
		return null;

	    if (((String) str).equals("String{}"))
		return "";
	    else
		return (String) str;
	}
    }

ForSharedService is the interlayer for the convenient call of remote methods and hides the code of interaction with technology SOAP. 

    package com.example.hello4shared;

    import org.ksoap2.SoapEnvelope;
    import org.ksoap2.serialization.PropertyInfo;
    import org.ksoap2.serialization.SoapObject;
    import org.ksoap2.serialization.SoapSerializationEnvelope;
    import org.ksoap2.transport.AndroidHttpTransport;
    import org.ksoap2.transport.Transport;

    import java.util.Hashtable;
    import java.util.Vector;

    /**
     * 4shared API local layer
     */
    public class ForSharedService {
	private String mUsername;
	private String mPassword;
	private static final String SERVICE_URL = "http://api.4shared.com/jax2/DesktopApp";
	private static final String SERVICE_NAMESPACE = "http://api.soap.shared.pmstation.com/";

	/**
	 * Constructs this object for an account
	 * @param username Username of the account
	 * @param password Password of the account
	 */
	public ForSharedService(String username, String password) {
	    mUsername = username;
	    mPassword = password;
	}

	/**
	 * Login with current account
	 */
	public void login() throws Exception {
	    String methodName = "login";
	    SoapObject rpc = getRpc(methodName);
	    SoapSerializationEnvelope envelope = getEnvelope(rpc);
	    Transport ht = getHttpTransport();

	    String result;

	    ht.call(SERVICE_URL + "/" + methodName, envelope);
	    result = (envelope.getResponse()).toString();

	    if (!isEmptyString(result))
		throw new Exception(result);
	}

	/**
	 * Get account's root folder
	 * @return Item representing the root directory
	 */
	public AccountItem getRoot() throws Exception {
	    String soapAction = SERVICE_URL + "/getRoot";

	    SoapObject rpc = getRpc("getRoot");
	    SoapSerializationEnvelope envelope = getEnvelope(rpc);
	    Transport ht = getHttpTransport();

	    ht.call(soapAction, envelope);
	    return getAccountItem((SoapObject) envelope.getResponse());
	}

	/**
	 * Get contents of a directory
	 * @param dirId Directory's identifier
	 * @return Array of items representing contents of the directory
	 */
	public AccountItem[] getItems(long dirId) throws Exception {
	    String methodName = "getItems";

	    SoapObject rpc = getRpc(methodName);
	    rpc.addProperty("arg2", new Long(dirId));
	    SoapSerializationEnvelope envelope = getEnvelope(rpc);

	    Transport ht = getHttpTransport();

	    ht.call(SERVICE_URL + "/" + methodName, envelope);
	    Object result = envelope.getResponse();

	    return getAccountItems(result);
	}

	private Transport getHttpTransport() {
	    Transport ht = new AndroidHttpTransport(SERVICE_URL);
	    ht.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
	    ht.debug = true;

	    return ht;
	}

	private SoapObject getRpc(String methodName) {
	    SoapObject rpc = new SoapObject(SERVICE_NAMESPACE, methodName);
	    rpc.addProperty("arg0", mUsername);
	    rpc.addProperty("arg1", mPassword);

	    return rpc;
	}

	private SoapSerializationEnvelope getEnvelope(SoapObject rpc) {
	    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

	    envelope.bodyOut = rpc;
	    envelope.encodingStyle = SoapSerializationEnvelope.XSD;

	    return envelope;
	}

	private AccountItem getAccountItem(SoapObject item) {
	    return deserialize(new AccountItem(), item);
	}

	@SuppressWarnings("unchecked")
	private AccountItem[] getAccountItems(Object response) {
	    if (response == null)
		return null;

	    if (!(response instanceof SoapObject))
		return null;

	    Vector items = new Vector();

	    for (int i = 0; i < ((SoapObject) response).getPropertyCount(); i++) {
		Object item = ((SoapObject) response).getProperty(i);
		if (item instanceof SoapObject) {
		    items.addElement(deserialize(new AccountItem(), (SoapObject) item));
		}
	    }

	    AccountItem[] accountItems = new AccountItem[items.size()];
	    items.copyInto(accountItems);

	    return accountItems;
	}

	@SuppressWarnings( {
		"unchecked", "deprecation"
	})
	private AccountItem deserialize(AccountItem newItem, SoapObject item) {
	    Hashtable ht = new Hashtable();
	    PropertyInfo propInfo = new PropertyInfo();
	    for (int n = 0; n < item.getPropertyCount(); n++) {
		item.getPropertyInfo(n, ht, propInfo);
		newItem.setProperty(propInfo.name, item.getProperty(n));
	    }

	    return newItem;
	}

	private static boolean isEmptyString(String string) {
	    return (string == null || string.equals("")
		   || string.toLowerCase().equals("string{}")
		   || string.toLowerCase().equals("anytype{}"));
	}
    }

The classes SoapObject, SoapSerializationEnvelope, AndroidHttpTransport – are included into the library ksoap2.

SoapObject, SoapSerializationEnvelope serve to parse soap-requests, whereas AndroidHttpTransport provides transport to call up the requests.

The call up of the function itself is realized by the method call (), of the class AndroidHttpTransport.

The service’s answer can be received by means of calling up the method getResponse() of the class SoapSerializationEnvelope.

The functions, transferred to the service, are defined by calling up the method addProperty of the class SoapObject as a pair “parameter name - value”.

Let’s create a window (activity) to display the list of user’s files and catalogues from 4shared server.

To do that, let’s create the new class (File > New > Class), derivative from ListActivity, in Eclipse environment, and call it AccountContents.

[ image ]

Let’s edit AccountContents.java, by redefining the method onCreate, called up by means of initializing the window (activity). 


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // Use a ListAdapter that will map an array of account's root folder items to TextViews
        setListAdapter(new ArrayAdapter<AccountItem>(this,
                android.R.layout.simple_list_item_1, Hello4shared.rootContents));
    }

The class ArrayAdapter establishes accordance (correspondence) between the list elements of the user’s interface and the list of files and catalogues on 4shared server, which will be uploaded into the static variable rootContents of the class Hello4shared.

In the method onCreate of the main window (activity) of the application, the code of which is in the file Hello4shared.java, let’s create the elements of the user’s interface for insertion and transfer of the user’s name (login) and 4shared account password to the server. 

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // Prepare vertical linear layout
        LinearLayout mainLayout = new LinearLayout(this);
        mainLayout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        mainLayout.setOrientation(LinearLayout.VERTICAL);
        
        // Create views
        TextView loginView = new TextView(this);
        loginView.setText("login:");
        TextView passwordView = new TextView(this);
        passwordView.setText("password:");
        
        final EditText loginEdit = new EditText(this);
        final EditText passwordEdit = new EditText(this);
        passwordEdit.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
        
        Button loginButton = new Button(this);
        loginButton.setText("Submit");
        loginButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = loginEdit.getText().toString();
                String password = passwordEdit.getText().toString();
                
                // If username and password entered correctly
                if (username.length() != 0 && password.length() != 0) {
                    // Start login procedure
                    login(username, password);
                }
            }
        });
        
        // Add views to layout
        mainLayout.addView(loginView);
        mainLayout.addView(loginEdit);
        mainLayout.addView(passwordView);
        mainLayout.addView(passwordEdit);
        mainLayout.addView(loginButton);
        
        // Set the layout as activity main layout
        setContentView(mainLayout);
    }

The handler of the press-button loginButton checks the properness of inserted data and, if succeeds, calls up the method login (), which starts the process of checking the user’s data on 4shared server, and also requests the list of files and catalogues of the account root catalogue. 


    private void login(final String username, final String password) {
        mProgressDialog = ProgressDialog.show(this, "", "Please wait...", true);
        mProgressDialog.setCancelable(false);
        
        // We should call network calls on separate thread not to freeze the application UI
        new Thread() {
            @Override
            public void run() {
                // Create 4shared API local layer to call remote methods
                ForSharedService fss = new ForSharedService(username, password);
                try {
                    // Call login procedure
                    fss.login();
                    // Get account's root folder
                    AccountItem rootItem = fss.getRoot();
                    // Request contents of the root folder
                    rootContents = fss.getItems(rootItem.getId());
                    
                    // If we are here, this means all the operations succeeded
                    loginSucceeded();
                } catch (Exception e) {
                    // One of the operations has failed
                    loginFailed(e.getMessage());
                }
            }
        }.start();
    }

If the name (login) and password correspond to the account in 4shared database, and network connection has been set successfully, the call up of the method loginSucceeded () opens the window (en. activity), which displays the list of user’s files and catalogues, which has been stored into the static variable rootContents. 


    private void loginSucceeded() {
        // Application UI transitions should be performed on the main thread
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                mProgressDialog.dismiss();
                // Move to next activity to show list of account's root folder contents
                Intent intent = new Intent(Hello4shared.this, AccountContents.class);
                startActivity(intent);
            }
        });        
    }

The last thing, which should be changed is the configuration of the project in the file AndroidManifest.xml.

In the section <manifest> let’s request the permit to get the access of the application to the Internet: 


                <uses-permission android:name="android.permission.INTERNET"></uses-permission>
       In the section <application>, let’s add the window(activity) AccountContents:
       		<activity android:name=".AccountContents"
		          android:label="@string/app_name">
		</activity>
       and define the portrait orientation for the window (activity) Hello4shared:
       	        android:configChanges="keyboardHidden|orientation"
                android:screenOrientation="portrait"

The full code of the demo-application is attached.


5. Run the Application (http://developer.android.com/resources/tutorials/hello-world.html)

[ image3 ]


Blackberry

Software SetUp

System requirements:

- 32-bit Windows® XP, Windows Vista® or Windows 7 (64-bit versions require 32-bit Java® и Eclipse)

- Eclipse 3.6 Helios

- PC with processor Intel® Pentium® 4 or higher (2.5 GHz or higher, 2 GB RAM, 1.5 GB free space on hard drive)

- Java SE Development Kit (JDK) 6, update 10 or newer.


Setup:

-Download and install 32-bit version of JAVA (http://www.java.com/ru/download/)

-Download and install 32-bit version of Eclipse (http://www.eclipse.org/downloads/packages/eclipse-classic-362/heliossr2)

-Download and install Blackberry plugin for Eclipse (http://us.blackberry.com/developers/javaappdev/javaplugin.jsp)

-Install Blackberry SDK. To do this, to start Eclipse and check menu Help - Install New Software… In a line with the software address to insert http://www.blackberry.com/go/eclipseUpdate/3.6/java.


Description of 4shared Service

Service 4shared is a usual web-service, WSDL description of which is here: https://api.4shared.com/jax2/DesktopApp?wsdl.

You can read more about web-services and WSDL here: http://ru.wikipedia.org/wiki/%D0%92%D0%B5%D0%B1-%D1%81%D0%BB%D1%83%D0%B6%D0%B1%D0%B0, http://ru.wikipedia.org/wiki/WSDL.

Short description of API functions can found here: http://help.4shared.com/index.php/SOAP_API.

To work with SOAP API, you can use direct SOAP-calling, but it’s more convenient to use another library for request parsing. For instance, you can use free library: (http://code.google.com/p/ksoap2-android/), which uses Java Microedition, working on Blackberry OS).


1. Demo Application


In the beginning, it’s necessary to create the new project in Eclipse (menu File-New-Project, in the list of project types – select Blackberry Project) and call it Hello4Shared.

In addition to that, for the right setup on the device of library ksoap2, you should create the 2nd project, where to place the library. You should define the type of the 2nd project Library and add the link to this project in the main application.

To work with the service, it’s necessary to add subclass ForSharedService.

The standard call of the function 4shared API will be the following: 


protected static final String SERVICE_URL = "http://api.4shared.com/jax2/DesktopApp";        
    protected static final String SERVICE_NAMESPACE = "http://api.soap.shared.pmstation.com/";
 
/**
* Enter check of the already existing user 
* @param username – user name
* @param password - password
* @throws Exception
*/
 public void login(String username, String password) throws Exception
 {
 	String methodName = "login";
      SoapObject rpc = new SoapObject(SERVICE_NAMESPACE, methodName);
      rpc.addProperty("arg0", userName);
      rpc.addProperty("arg1", password);

SoapSerializationEnvelope envelope = new    SoapSerializationEnvelope(SoapEnvelope.VER11);

      envelope.bodyOut = rpc;        
      envelope.encodingStyle = SoapSerializationEnvelope.XSD;

      HttpTransport ht = new HttpTransport(SERVICE_URL);
	ht.setXmlVersionTag("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
	ht.debug = true;

        
      String result;

      ht.call(SERVICE_URL + "/" + methodName, envelope);
	result = (envelope.getResponse()).toString();         
        
      if (!isEmptyString(result))
      	throw new Exception(result);
}

The classes SoapObject, SoapSerializationEnvelope, HttpTransport – are included in the library ksoap2.

SoapObject, SoapSerializationEnvelope serve to parse soap-requests, whereas HttpTransport provides transport for the call of requests. The call of service functions itself is established by the method), of the class HttpTransport. The service answer can be received by means of calling the method getResponse() of the class SoapSerializationEnvelope. The parameters of functions, transferred to the service, are defined by calling up the method addProperty of the class SoapObject as a pair «parameter name - value». Now, let’s add the class of the main screen into the app, where we will place 2 text fields to enter the user’s name (login) and password, and the button to call up the method login of service, used to enter: public class MainAppScreen extends MainScreen implements FieldChangeListener 

{
	/**
	 * Window Title
	 */
	private LabelField _title;
	
	/**
	 * Enter-Login Field
	 */
	private EmailAddressEditField _userNameField;
	
	/**
	 * Enter-Password Field
	 */
	private PasswordEditField _passwordField;
	
	/**
	 * Enter Button
	 */
	private ButtonField _loginButton;

	/**
	 * Constructor
	 */
	public MainAppScreen()
	{
		super();

		_title = new LabelField("Hello4Shared");
		setTitle(_title);
		
		_userNameField = new EmailAddressEditField("Login or email: ", "");
		add(_userNameField);
        _passwordField = new PasswordEditField("Password: ", "");
		add(_passwordField);

		_loginButton = new ButtonField("Login", Field.FOCUSABLE);
		_loginButton.setChangeListener(this);
		add(_loginButton);
	}
	
}

After that, let’s add the handler of the press-button in the following way: 


/* 
 * The Handler of the Press-Button
*/
public void fieldChanged(Field field, int context)
{
	if (field == _loginButton)
	{
		login();
	}
}

And the exact request to 4shared service in the method login, by means of using the class ForSharedService, described above: 


private void login(){
ForSharedService service = new ForSharedService(_userNameField.getText(), _passwordField.getText());
		
	// Logging into account
	try
	{
		service.login();
	}catch (Exception e)
	{
		Dialog.alert(e.getMessage());
	}
}

In case of invalid login or password, the user will receive the error report.

The full code of the demo-application is attached.



Method Summary

addToFavorites

long addToFavorites(java.lang.String login, java.lang.String password, long fileId) Adds file to user favorites.

addToMyAccount

java.lang.String addToMyAccount(java.lang.String login, java.lang.String password, long dirId, java.lang.String link) Adds file or folder identified by supplied link to user's account in folder identified by dirId

checkSharedDirAccess

int checkSharedDirAccess(java.lang.String login, java.lang.String password, long dirID, java.lang.String dirPassword, java.lang.String userDirPassword) Checks if directory can be accessed by specified user with specified passwords

createNewFolder

long createNewFolder(java.lang.String login, java.lang.String password, long dirID, java.lang.String folderName) Creates new folder as dirId subfolder

createUploadSessionKey

java.lang.String createUploadSessionKey(java.lang.String login, java.lang.String password, long dirID) Creates session key for uploading file

decodeId

java.lang.String decodeId(java.lang.String login, java.lang.String password, java.lang.String encodedId) turns new encoded folder id into form id+"/"+4shared_password for shared folder browsing encoded folder id can be found as 8-symbol group of folder url right after /dir/ regexp: http://www.4shared.com/dir/(.{8,8})/.*

decodeLink

long decodeLink(java.lang.String login, java.lang.String password, java.lang.String link) Used to get item id from item link.

deleteFile

void deleteFile(java.lang.String login, java.lang.String password, long fileID) Removes file to recycle bin

deleteFileFinal

void deleteFileFinal(java.lang.String login, java.lang.String password, long fileID) Remove file once and for all.

deleteFolder

void deleteFolder(java.lang.String login, java.lang.String password, long dirID) Completely removes folder and puts all of it contents to recycle bin

deleteFolderFinal

void deleteFolderFinal(java.lang.String login, java.lang.String password, long dirID) Removes files and subfolders from recycle bin.

downloadFinished

void downloadFinished(java.lang.String login, java.lang.String password, long fileId) Have to be called after full file download

emptyRecycleBin

int emptyRecycleBin(java.lang.String login, java.lang.String password) Empties recycle bean for specified user.

getAllFolders

AccountItem[] getAllFolders(java.lang.String login, java.lang.String password) Returns all of the folders in user's root directory

getAllItems

AccountItem[] getAllItems(java.lang.String login, java.lang.String password) Returns info about all items in user's root folder

getDirDescription

java.lang.String getDirDescription(java.lang.String login, java.lang.String password, long dirId) Returns folder description

getDirectLink

java.lang.String getDirectLink(java.lang.String login, java.lang.String password, java.lang.String link) Returns link to start immediate downloading.

getDirInfo

AccountItem getDirInfo(java.lang.String login, java.lang.String password, long dirID) Return info about specified folder

getExifFileInfo

ExifInfo getExifFileInfo(java.lang.String login, java.lang.String password, java.lang.String fileLink) Return image info for specified file link if any


getExifFileInfos

ExifInfo[] getExifFileInfos(java.lang.String login, java.lang.String password, long dirId) Returns @see ExifInfo for all image files in specified folder

getFavorites

AccountItem[] getFavorites(java.lang.String login, java.lang.String password) Returns user favored files.

getFileDescription

java.lang.String[] getFileDescription(java.lang.String login, java.lang.String password, long fileId) Returns file title, tags and description if any

getFileDownloadLink

java.lang.String getFileDownloadLink(java.lang.String login, java.lang.String password, long fileID) Returns download link for user owned file

getFileInfo

AccountItem getFileInfo(java.lang.String login, java.lang.String password, long fileID) Returns info about file

getFiles

AccountItem[] getFiles(java.lang.String login, java.lang.String password, long[] fileIds) Returns account items for file ids.

getFreeSpace

long getFreeSpace(java.lang.String login, java.lang.String password) Gets free space left for user

getItemInfo

AccountItem getItemInfo(java.lang.String login, java.lang.String password, long itemID, boolean dir) Common method for DesktopApp.getFileInfo(String, String, long) and DesktopApp.getDirInfo(String, String, long) distinguished by value of dir parameter

getItems

AccountItem[] getItems(java.lang.String login, java.lang.String password, long dirID) Returns array of infos about contents of specified dir.

getItemsCount

long getItemsCount(java.lang.String login, java.lang.String password, long dirID) Returns item count for dirId (-1 for root folder)

getItemsPartial

AccountItem[] getItemsPartial(java.lang.String login, java.lang.String password, long dirId, int startIndex, int count) Get specified count folders' items ordered by name, folders first starting from startIndex

getMaxFileSize

long getMaxFileSize(java.lang.String login, java.lang.String password) Return maximum allowed file size for specified user

getMp3FileInfo

Mp3Info getMp3FileInfo(java.lang.String login, java.lang.String password, java.lang.String fileLink) Return audio info for specified file link if any

getMp3FileInfos

Mp3Info[] getMp3FileInfos(java.lang.String login, java.lang.String password, long dirId) Returns audio info for all audio files in folder

getNewFileDataCenter

long getNewFileDataCenter(java.lang.String login, java.lang.String password) Returns datacenter id to upload files to

getNotOwnedSizeLimit

long getNotOwnedSizeLimit() Max file size which can be downloaded without speed limit

getPreviewLink

java.lang.String getPreviewLink(java.lang.String login, java.lang.String password, long fileId) Return link to small preview image, or to flv preview for video files

getRecycleBinItems

AccountItem[] getRecycleBinItems(java.lang.String login, java.lang.String password) Returns info about files in recycle bin

getRoot

AccountItem getRoot(java.lang.String login, java.lang.String password) Returns account item for user's root directory

getSharedDirItems

AccountItem[] getSharedDirItems(java.lang.String login, java.lang.String password, long dirID, java.lang.String dirPassword, java.lang.String userDirPassword) Return content of possibly not owned shared folder

getSpaceLimit

long getSpaceLimit(java.lang.String login, java.lang.String password) Returns user space limit

getUploadFormUrl

java.lang.String getUploadFormUrl(int dataCenterID, java.lang.String sessionKey) Returns url to upload file to.

hasRightUpload

boolean hasRightUpload() Whether upload feature is on.

isAccountActive

boolean isAccountActive(java.lang.String login, java.lang.String password) Checks account active status

isAccountBanned

boolean isAccountBanned(java.lang.String login, java.lang.String password) Checks if user account is banned

isAccountPremium

boolean isAccountPremium(java.lang.String login, java.lang.String password) Checks if user account is premium

isExistsLoginPassword

boolean isExistsLoginPassword(java.lang.String login, java.lang.String password) true-false version of login.

login

java.lang.String login(java.lang.String login, java.lang.String password) Login version with diagnostic message.

pasteFilesDirs

java.lang.String pasteFilesDirs(java.lang.String login, java.lang.String password, long toFolderId, boolean makeCopy, long[] fileIds, long[] dirIds) Copy-pastes or cut-pastes a group of files and dirs.

removeFromFavorites

long removeFromFavorites(java.lang.String login, java.lang.String password, long fileId) Removes file from user's favorites.

renameFile

long renameFile(java.lang.String login, java.lang.String password, long fileID, java.lang.String newName) Renames specified file

renameFolder

long renameFolder(java.lang.String login, java.lang.String password, long dirID, java.lang.String newName) Renames specified folder

restoreFile

void restoreFile(java.lang.String login, java.lang.String password, long fileID) Restores file from Recycle Bin.

restoreFiles

void restoreFiles(java.lang.String login, java.lang.String password, long[] fileIDs) Restores group of files from Recycle Bin.

setDirDescription

java.lang.String setDirDescription(java.lang.String login, java.lang.String password, long dirId, java.lang.String newDescription, boolean setAsDefault, boolean applyToAll) Sets folder description for dedicated folder or account as a whole

setFileDescription

java.lang.String setFileDescription(java.lang.String login, java.lang.String password, long fileId, java.lang.String title, java.lang.String tags, java.lang.String newDescription, boolean setAsDefault, boolean applyToAll) Sets file title, tags and description for dedicated file or account as a whole

signup

java.lang.String signup(java.lang.String login, java.lang.String password) Creates new User with specified login(email) and password and sends confirmation email.

signupUsername

java.lang.String signupUsername(java.lang.String login, java.lang.String password, java.lang.String username) Creates new User with specified login(email), short username for easing login and password and sends confirmation email.

uploadCancelFile

void uploadCancelFile(java.lang.String login, java.lang.String password, long fileId) Call if upload was canceled

uploadFinishFile

java.lang.String uploadFinishFile(java.lang.String login, java.lang.String password, long fileId, java.lang.String md5) Complete resumable upload

uploadStartedFileExists

boolean uploadStartedFileExists(java.lang.String login, java.lang.String password, long fileId) Checks if file was partially uploaded

uploadStartFile

long uploadStartFile(java.lang.String login, java.lang.String password, long dirID, java.lang.String name, long fullSize) Resumable upload - start

uploadStartFileUpdate

long uploadStartFileUpdate(java.lang.String login, java.lang.String password, long updateFileId, java.lang.String name, long fullSize) Update file


Method Detail

Upload HOW TO

First of all you should check if you have enough free space in user’s account: 

 function long getFreeSpace(String login, String password);

(returned value – free space in bytes)

And what is upload limit for user (per file): 

 function long getMaxFileSize(String login, String password);

(returned value – maximum file size in bytes)

Please, check if target file corresponds the mentioned conditions, if it does, then:

Get session: 

function String createUploadSessionKey(String login, String password, long dirID);

Set ‘-1’ as DirId parameter. In this case file will be uploaded to the root directory. Or read full API description to learn how to browse user's directory for subdirectories' ids. Return session key if everything is ok and empty or null string if you can't upload to the specified dir.

Get datacenter: 

 function int getNewFileDataCenter(String login, String password);

If returned datacenter is less or equal then 0 - something goes wrong.

Then get URL for upload using session and datacenter: 

 function String getUploadFormUrl(int dataCenterID, String sessionKey);

Returned string is only valid if it starts with http, otherwise, you can't upload file;

To reserve fileId for yor upload call function: 

 function long uploadStartFile(String login, String password, long dirID, String name, long fullSize);

Again, fileId can be only positive.

Then use received URL and fileId to upload by executing POST query multipart/form-data with fields

1) resumableFileId (file ID received via previous method)

2) resumableFirstByte (index of the first byte of current part. If the file is uploaded as single unit – then pass 0. If the file is divided into parts and is uploaded by parts – then pass index of the byte every part starts from)

Attach the file to the query as a parameter FilePart.

where last parameter is file md5 digest. If the file is successfully uploaded – function returns null or empty line, if not – you will get an error message. If the file was uploaded by parts, this function unites them into one.

You are done!


Search files on 4shared

To search files on 4shared.com you should use the following url

http://search.4shared.com/network/searchXml.jsp

Parameters: 

       q - keyword

Example: q=funny cats 

       searchExtention - type of file (extension or category)

If you need extension just use searchExtention=mid. Remember, if you are using parameter searchExtention you should also use searchmode=3


For searching in direct category use the following: 

       category:1 - music
       category:2 - video
       category:3 - photo
       category:4 - archive
       category:6 - program
       category:7 - web documents
       category:8 - mobile applications

Example: use searchExtention=category:1 - if you are searching only music. 

       sortType - type of sorting

         1 - sort by downloads;
         2 - sort by upload date;
         3 - sort by size;
         4 - sort by name;

       sortOrder - sorting order(Ascending -1, Descending 1)

       start - offset, is used for pagination

start value should be divisible by 10


Usage example: 

http://search.4shared.com/network/searchXml.jsp?q=somebody&searchExtention=mid&sortType=3&sortOrder=1&searchmode=3&start=10

Response: 

<search-result>
<query>somebody</query> - keyword
<total-files>24</total-files> - number of found files
<page-number>2</page-number> - page number
<pages-total>2</pages-total> - total amount of pages
<start>10</start> - offset
<files-per-page>10</files-per-page> - amount of files per page
<files-approx-count>24</files-approx-count> - approximate number of files (when amount of found files is more than 1,000). If amount of found files is less than 1,000 it equals to <total-files></total-files>
<result-files>
<file>
<name>somebody_to_shove.mid</name> - filename
<description/> - description
<downloads-count>8</downloads-count> - number of downloads
<upload-date-format>hh:mm dd-MM-yyyy</upload-date-format> - upload date format
<upload-date>04:19 19-05-2009</upload-date> - upload date
<url>http://www.4shared.com/audio/qVaKdItF/somebody_to_shove.htm</url> - download page url
<preview-url/> - preview url if exist
<flash-preview-url/>- flash preview url if exist
<user>wym</user> - username
<size>39 KB</size> - file size
</file>
<file>
...
</file>
</result-files>
</search-result>




checkSharedDirAccess

 public int checkSharedDirAccess(java.lang.String login,
                               java.lang.String password,
                               long dirID,
                               java.lang.String dirPassword,
                               java.lang.String userDirPassword)

Checks if directory can be accessed by specified user with specified passwords

Parameters: 

       login - is user login
       password - is user password
       dirID - id of the directory to be accessed
       dirPassword - generated password to view contents of not owned folders
       userDirPassword - user specified password

Returns: 

Status.
0 	ok
1 	no such dir
2 	owner inactive
3 	abused dir
4 	incorrect dirPassword
5 	dir is not shared
6 	owner is banned
8 	incorrect userDirPassword

checkSubdomain

 public java.lang.String checkSubdomain(java.lang.String login,
                                      java.lang.String password,
                                      long dirId,
                                      java.lang.String subdomainName)

Checks if subdomain can be set for specified folder

Parameters: 

 login - user login
 password - user password
 dirId - id of the directory
 subdomainName - name to be set

Returns: 

 Empty string or null if everything is ok and error message otherwise

createNewFolder

 public long createNewFolder(java.lang.String login,
                           java.lang.String password,
                           long dirID,
                           java.lang.String folderName)

Creates new folder as dirId subfolder

Parameters: 

 login - user login
 password - user password
 dirID - id of the directory to create folder in
 folderName - new folder name

Returns: 

 0 - if creation denied, newly created dir ID otherwise 
 -1 - already exists 
 -2 - attempt to create folder in removed parent

createUploadSessionKey

 public java.lang.String createUploadSessionKey(java.lang.String login,
                                              java.lang.String password,
                                              long dirID)

Creates session key for uploading file

Parameters: 

 login - user login
 password - user password
 dirID - id of the directory to upload to

Returns: 

 session key

deleteFile

 public void deleteFile(java.lang.String login,
                      java.lang.String password,
                      long fileID)

Removes file to recycle bin or from recycle bin if it is already there

Parameters: 

 login - user login
 password - user password
 fileID - id of the file to be removed

deleteFolder

 public void deleteFolder(java.lang.String login,
                        java.lang.String password,
                        long dirID)

Completely removes folder and puts all of it contents to recycle bin

Parameters: 

 login - user login
 password - user password
 dirID - id of the directory to be removed

downloadFinished

 public void downloadFinished(java.lang.String login,
                            java.lang.String password,
                            long fileId)

Have to be called after full file download

Parameters: 

 login - user login
 password - user password
 fileId - id of the file which was downloaded

getAllFolders

 public com.pmstation.shared.soap.api.AccountItem[] getAllFolders(java.lang.String login,
                                                                java.lang.String password)

Returns all of the folders in user's root directory

Parameters: 

 login - user login
 password - user password

Returns: 

 Array of info records about user's root folder subfolders

getAllItems

 public com.pmstation.shared.soap.api.AccountItem[] getAllItems(java.lang.String login,
                                                              java.lang.String password)

Returns info about all items in user's root folder

Parameters: 

 login - user login
 password - user password

Returns: 

 Array of info records about user's root folder content

getCurrentUploaderVersion

 public long getCurrentUploaderVersion()

Returns last uploader version. If this increase you should consider to look at online api documentation to check changes. We will try to maintain backward compatibility but this is not guaranteed.

Returns: 

 Uploader version

getDirectLink

 public java.lang.String getDirectLink(java.lang.String login,
                                     java.lang.String password,
                                     java.lang.String link)

Returns link to start immediate downloading. Not always possible however, because we are ads-supported mostly. Returns link starting with "http" if ok.

Parameters: 

 login - user login
 password - user password
 link - indirect download link

getDirInfo

 public com.pmstation.shared.soap.api.AccountItem getDirInfo(java.lang.String login,
                                                           java.lang.String password,
                                                           long dirID)

Return info about specified folder

Parameters: 

 login - user login
 password - user password
 dirID - id of the folder

Returns: 

 folder info

getFileDownloadLink

 public java.lang.String getFileDownloadLink(java.lang.String login,
                                           java.lang.String password,
                                           long fileID)

Returns download link for user owned file

Parameters: 

 login - user login
 password - user password
 fileID - id of file to be downloaded

Returns: 

 Download link or empty string if some errors occurs.

getFileInfo

 public com.pmstation.shared.soap.api.AccountItem getFileInfo(java.lang.String login,
                                                            java.lang.String password,
                                                            long fileID)

Returns info about file

Parameters: 

 login - user login
 password - user password
 fileID - id of file to get info about

Returns: 

 file info

getFolderSharingProperties

 public com.pmstation.shared.soap.api.SharedFolderProperties[] getFolderSharingProperties(java.lang.String login,
                                                                                        java.lang.String password,
                                                                                        long dirId)

Returns folder sharing properties. Output is two element array: res[0] - actual values. res[1] - properties which can be set for this user is marked as true.

Parameters: 

 login - user login
 password - user password
 dirId - id of the folder to properties for

Returns: 

 folder sharing properties

getFreeSpace

 public long getFreeSpace(java.lang.String login,
                        java.lang.String password)

Gets free space left for user

Parameters: 

 login - user login
 password - user password

Returns: 

 free space left for user in bytes

getHistory

 public com.pmstation.shared.soap.api.DirHistoryDTO[] getHistory(java.lang.String login,
                                                               java.lang.String password,
                                                               long dirId)

Returns history of operations in specified folder and subfolders. For operation field meanings see getOperationDescriptions()

Parameters: 

 login - user login
 password - user password
 dirId - id of folder

Returns: 

 Array of folder changes. May be null or empty

getHistoryFromId

 public com.pmstation.shared.soap.api.DirHistoryDTO[] getHistoryFromId(java.lang.String login,
                                                                     java.lang.String password,
                                                                     long dirId,
                                                                     long fromId)

Returns history of operations which occurs in specified folder and subfolders with history id more then specified. For operation field meanings see getOperationDescriptions()

Parameters: 

 login - user login
 password - user password
 dirId - id of folder to take history for
 fromId - id floor of history

Returns: 

 Array of folder changes. May be null or empty

getItemInfo

 public com.pmstation.shared.soap.api.AccountItem getItemInfo(java.lang.String login,
                                                            java.lang.String password,
                                                            long itemID,
                                                            boolean dir)

Common method for getFileInfo(String, String, long) and getDirInfo(String, String, long) distinguished by value of dir parameter

Parameters: 

 login - user login
 password - user password
 itemID - id of element
 dir - if true then supplied Id is folder and file otherwise

Returns:

getItems

 public com.pmstation.shared.soap.api.AccountItem[] getItems(java.lang.String login,
                                                           java.lang.String password,
                                                           long dirID)

Returns array of infos about contents of specified dir.

Parameters: 

 login - user login
 password - user password
 dirID - id of folder to list (-1 for root)

Returns: 

 Array of info items

getMaxFileSize

 public long getMaxFileSize(java.lang.String login,
                          java.lang.String password)

Return maximum allowed file size for specified user

Parameters: 

 login - user login
 password - user password

Returns: 

 maximum allowed file size in bytes

getNewFileDataCenter

 public long getNewFileDataCenter(java.lang.String login,
                                java.lang.String password)

Returns datacenter id to upload files to

Parameters: 

 login - user login
 password - user password

Returns: 

 datacenter id to upload new files to

getNotOwnedSizeLimit

 public long getNotOwnedSizeLimit()

Max file size which can be downloaded without speed limit

Returns: 

 max file size which can be downloaded without speed limit

getOperationDescriptions

public java.lang.String[] getOperationDescriptions()

Returns array of OperationEnum names. Array index corresponds to values which can be returned as DirHistoryDTO.getOperation(). Array is supposed to be zero-based.

Returns: 

 array of OperationEnum names

getRecycleBinItems

 public com.pmstation.shared.soap.api.AccountItem[] getRecycleBinItems(java.lang.String login,
                                                                     java.lang.String password)

Returns info about files in recycle bin

Parameters: 

 login - user login
 password - user password

Returns: 

 Array of recycle bin content info items

getSharedDirItems

 public com.pmstation.shared.soap.api.AccountItem[] getSharedDirItems(java.lang.String login,
                                                                    java.lang.String password,
                                                                    long dirID,
                                                                    java.lang.String dirPassword,
                                                                    java.lang.String userDirPassword)

Return content of possibly not owned shared folder

Parameters: 

 login - user login
 password - user password
 dirID - id of folder to view
 dirPassword - 4shared generated dir password
 userDirPassword - user set dir password if needed

Returns: 

 content of specified shared folder or null

getSpaceLimit

 public long getSpaceLimit(java.lang.String login,
                         java.lang.String password)

Returns user space limit

Parameters: 

 login - user login
 password - user password

Returns: 

 space limit

getUploadFormUrl

public java.lang.String getUploadFormUrl(int dataCenterID, 

                                        java.lang.String sessionKey)

Returns url to upload file to.

Parameters: 

 dataCenterID - id of datacenter to upload to
 sessionKey - upload session key

hasRightUpload

 public boolean hasRightUpload()

Whether upload feature is on.

Returns: 

 whether upload feature is on.

isAccountActive

 public boolean isAccountActive(java.lang.String login,
                              java.lang.String password)

Checks account availability

Parameters: 

 login - user login
 password - user password

Returns: 

 true if account is active

isAccountBanned

 public boolean isAccountBanned(java.lang.String login,
                              java.lang.String password)

Checks if user account is banned

Parameters: 

 login - user login
 password - user password

Returns: 

 true if user accont is banned

isAccountPremium

 public boolean isAccountPremium(java.lang.String login,
                               java.lang.String password)

Checks if user account is premium

Parameters: 

 login - user login
 password - user password

Returns: 

 true of user has premium account

isExistsLoginPassword

 public boolean isExistsLoginPassword(java.lang.String login,
                                    java.lang.String password)

true-false version of login

Parameters: 

 login - user login
 password - user password

Returns: 

 true if login was successful

login

 public java.lang.String login(java.lang.String login,
                             java.lang.String password)

Login

Parameters: 

 login - user login
 password - user password

Returns: 

 Empty string if all ok, diagnostic message otherwise

markSynchronized

 public void markSynchronized(java.lang.String login,
                            java.lang.String password,
                            long dirId)

Informs 4shared to write folder and subfolders usage history

Parameters: 

 login - user login
 password - user password
 dirId - id of folder to write history for

pasteFilesDirs

 public java.lang.String pasteFilesDirs(java.lang.String login,
                                      java.lang.String password,
                                      long toFolderId,
                                      boolean makeCopy,
                                      long[] fileIds,
                                      long[] dirIds)

Copy-pastes or cut-pastes a group of files and dirs. Use this to copy or move a group of files to another directory.

Parameters: 

 login - user login
 password - user password
 toFolderId - target folder id
 makeCopy - - exec copy+paste if true, exec cut+paste if false
 fileIds - ids of file to be moved/copied
 dirIds - ids of folders to be moved/copied

Returns: 

 diagnostic message or empty string if all ok

renameFile

 public long renameFile(java.lang.String login,
                      java.lang.String password,
                      long fileID,
                      java.lang.String newName)

Renames specified file

Parameters: 

 login - user login
 password - user password
 fileID - id of file to be renamed
 newName - new name of file

Returns: 

 -1 if file exists, 
 0 in case of other failures, 
 fileID if rename was successful

renameFolder

 public long renameFolder(java.lang.String login,
                        java.lang.String password,
                        long dirID,
                        java.lang.String newName)

Renames specified folder

Parameters: 

 login - user login
 password - user password
 dirID - id of folder to be renamed
 newName - new name of folder

Returns: 

 -1 if file exists, 
 0 in case of other failures, 
 dirID if rename was successful

restoreFile

 public void restoreFile(java.lang.String login,
                       java.lang.String password,
                       long fileID)

Restores file from Recycle Bin. If folder still exists restores to it, in other cases will restore to special RESTORED FILES folder which will be created if not already exists.

Parameters: 

 login - user login
 password - user password
 fileID - id of file to be restored

restoreFiles

 public void restoreFiles(java.lang.String login,
                        java.lang.String password,
                        long[] fileIDs)

Restores group of files from Recycle Bin. If folder still exists restores to it, in other cases will restore to special RESTORED FILES folder which will be created if not already exists.

Parameters: 

 login - user login
 password - user password
 fileIDs - Array of file ids to be restored

setFolderSharingProperties

 public java.lang.String setFolderSharingProperties(java.lang.String login,
                                                  java.lang.String password,
                                                  long dirId,
                                                  com.pmstation.shared.soap.api.SharedFolderProperties folderProperties)

Sets folder sharing properties

Parameters: 

 login - user login
 password - user password
 dirId - id of folder to set properties for
 folderProperties - new properties values

Returns: 

 Diagnostic message or empty string if all is ok

signup

 public java.lang.String signup(java.lang.String login,
                              java.lang.String password)

Creates new User and sends confirmation email.

Parameters: 

 login - desired login
 password - password

Returns: 

 error message if any. Empty string if all ok.

syncFinished

 public void syncFinished(java.lang.String login,
                        java.lang.String password,
                        long fileId)

Should be called in the end of each sync operation

Parameters: 

 login - user login
 password - user password
 fileId - which file was synced. -1 if not applicable

uploadCancelFile

 public void uploadCancelFile(java.lang.String login,
                            java.lang.String password,
                            long fileId)

Call if upload was canceled

Parameters: 

 login - user login
 password - user password
 fileId - id of file which upload is canceling

uploadFinishFile

 public java.lang.String uploadFinishFile(java.lang.String login,
                                        java.lang.String password,
                                        long fileId,
                                        java.lang.String md5)

Complete resumable upload

Parameters: 

 login - user login
 password - user password
 fileId - returned from initial call to uploadStartFile() - existing file in 'being uploaded by parts' state
 md5 - original file MD5 to verify file consistency at server side

Returns: 

 empty string if success or error message

uploadStartedFileExists

 public boolean uploadStartedFileExists(java.lang.String login,
                                      java.lang.String password,
                                      long fileId)

Checks if file was partially uploaded

Parameters: 

 login - user login
 password - user password
 fileId - id of file to be checked

Returns: 

 true if there is part of file already uploaded.

uploadStartFile

 public long uploadStartFile(java.lang.String login,
                           java.lang.String password,
                           long dirID,
                           java.lang.String name,
                           long fullSize)

Resumable upload - start

Parameters: 

 dirID - (-1) means upload to user's root dir

Returns: 

 fileId to pass as parameter in all subsequent partial uploads

uploadStartFileUpdate

 public long uploadStartFileUpdate(java.lang.String login,
                                 java.lang.String password,
                                 long updateFileId,
                                 java.lang.String name,
                                 long fullSize)

Update file

Parameters: 

 login - user login
 password - user password
 updateFileId - it of original file to be updated
 name - empty string means don't change existing name
 fullSize -

Returns: 

 id of temporary file uploading of which will cause update of original file
Retrieved from "http://help.4shared.com/index.php?title=SOAP_API&oldid=562"