SharePoint authorization to documents

// Create a folder under the root directory of the List

Public static string creatfoldertospdoclib (string strfoldername, string strdoclibname)

{

String folderpath = string. empty;

 

Try

{

Using (spsite site = new spsite (siteurl ))

{

Using (spweb web = site. openweb ())

{

Web. allowunsafeupdates = true;

Splistcollection lists = web. getlistsoftype (spbasetype. documentlibrary );

Lists. includerootfolder = true;

Splist list = lists [strdoclibname];

List. enablefoldercreation = true;

Splistitem item = List. Items. Add (list. rootfolder. serverrelativeurl, spfilesystemobjecttype. folder, strfoldername );

Item. Update ();

List. Update ();

Folderpath = item ["fileref"]. tostring ();

Web. allowunsafeupdates = false;

}

}

}

Catch

{

}

Return folderpath;

}

 

// Upload a file to a folder and grant it to the relevant user

Public static bool uploadfiletofolder (byte [] filestream, string filename, string folderpath, string allloginname)

{

Try

{

Using (spsite site = new spsite (siteurl ))

{

Using (spweb web = site. openweb ())

{

Web. allowunsafeupdates = true;

Spfolder folder = web. getfolder (folderpath );

 

Splistitem listitem = folder. Files. Add (filename, filestream). item;

 

// Disconnect the permissions inherited from the original list items so that they can set independent Permissions

Listitem. breakroleinheritance (true );

// Remove the original inherited Permissions

Foreach (sproleassignment roleassignment in listitem. roleassignments)

{

Roleassignment. roledefinitionbindings. removeall ();

Roleassignment. Update ();

Listitem. Update ();

}

// Obtain the user whose permissions are to be set

Spuser myuser = web. ensureuser (allloginname );

// Define permission allocation

Sproleassignment myroleassignment = new sproleassignment (myuser. loginname, myuser. Email, myuser. Name, myuser. Notes );

// Bind the Set permissions

Myroleassignment. roledefinitionbindings. Add (Web. roledefinitions. getbytype (sproletype. Reader ));

// Add this permission to our list

Listitem. roleassignments. Add (myroleassignment );

Listitem. Update ();

 

Web. allowunsafeupdates = false;

Return true;

}

}

}

Catch

{

Return false;

}

}

 

// Obtain list items by ID

Public static string getroleassignmentsofsplistitem (string listname, int Itemid)

{

String revalue = string. empty;

Try

{

Using (spsite site = new spsite (siteurl ))

{

Using (spweb web = site. openweb ())

{

Web. allowunsafeupdates = true;

Splist list = web. Lists [listname];

Splistitem item = List. Items. getitembyid (Itemid );

Sproleassignmentcollection rolecoll = item. roleassignments;

Foreach (sproleassignment role in rolecoll)

{

For (INT I = 0; I <role. roledefinitionbindings. Count; I ++)

{

Revalue + = (role. member. loginname + ":" + role. roledefinitionbindings [I]. name + ":" + role. roledefinitionbindings [I]. basepermissions. tostring ());

}

}

 

Web. allowunsafeupdates = false;

}

}

}

Catch

{

}

Return revalue;

}