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https://github.com/ether/etherpad-lite.git
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initial rewrite
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booo
parent
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commit
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12 changed files with 777 additions and 697 deletions
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@ -17,40 +17,47 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var ERR = require("async-stacktrace");
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var customError = require("../utils/customError");
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var randomString = require("../utils/randomstring");
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var db = require("./DB").db;
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var async = require("async");
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var groupMangager = require("./GroupManager");
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var authorMangager = require("./AuthorManager");
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exports.doesSessionExist = function(sessionID, callback)
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var SessionManager = function SessionManager(db, groupManager, authorManager) {
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this.db = db;
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this.groupManager = groupManager;
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this.authorManager = authorManager;
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};
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exports.SessionManager = SessionManager;
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SessionManager.prototype.doesSessionExist = function(sessionID, callback)
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{
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//check if the database entry of this session exists
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db.get("session:" + sessionID, function (err, session)
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this.db.get("session:" + sessionID, function (err, session)
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{
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if(ERR(err, callback)) return;
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callback(null, session != null);
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});
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}
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};
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/**
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* Creates a new session between an author and a group
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*/
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exports.createSession = function(groupID, authorID, validUntil, callback)
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SessionManager.prototype.createSession = function(groupID, authorID, validUntil, callback)
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{
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var sessionID;
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var that = this;
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async.series([
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//check if group exists
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function(callback)
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{
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groupMangager.doesGroupExist(groupID, function(err, exists)
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that.groupMangager.doesGroupExist(groupID, function(err, exists)
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{
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if(ERR(err, callback)) return;
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//group does not exist
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if(exists == false)
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{
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@ -66,10 +73,10 @@ exports.createSession = function(groupID, authorID, validUntil, callback)
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//check if author exists
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function(callback)
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{
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authorMangager.doesAuthorExists(authorID, function(err, exists)
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that.authorMangager.doesAuthorExists(authorID, function(err, exists)
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{
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if(ERR(err, callback)) return;
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//author does not exist
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if(exists == false)
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{
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@ -99,56 +106,56 @@ exports.createSession = function(groupID, authorID, validUntil, callback)
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return;
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}
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}
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//ensure this is not a negativ number
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if(validUntil < 0)
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{
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callback(new customError("validUntil is a negativ number","apierror"));
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return;
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}
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//ensure this is not a float value
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if(!is_int(validUntil))
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{
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callback(new customError("validUntil is a float value","apierror"));
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return;
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}
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//check if validUntil is in the future
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if(Math.floor(new Date().getTime()/1000) > validUntil)
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{
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callback(new customError("validUntil is in the past","apierror"));
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return;
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}
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//generate sessionID
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sessionID = "s." + randomString(16);
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//set the session into the database
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db.set("session:" + sessionID, {"groupID": groupID, "authorID": authorID, "validUntil": validUntil});
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that.db.set("session:" + sessionID, {"groupID": groupID, "authorID": authorID, "validUntil": validUntil});
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callback();
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},
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//set the group2sessions entry
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function(callback)
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{
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//get the entry
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db.get("group2sessions:" + groupID, function(err, group2sessions)
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that.db.get("group2sessions:" + groupID, function(err, group2sessions)
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{
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if(ERR(err, callback)) return;
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//the entry doesn't exist so far, let's create it
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if(group2sessions == null)
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{
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group2sessions = {sessionIDs : {}};
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}
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//add the entry for this session
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group2sessions.sessionIDs[sessionID] = 1;
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//save the new element back
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db.set("group2sessions:" + groupID, group2sessions);
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that.db.set("group2sessions:" + groupID, group2sessions);
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callback();
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});
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},
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@ -156,45 +163,45 @@ exports.createSession = function(groupID, authorID, validUntil, callback)
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function(callback)
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{
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//get the entry
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db.get("author2sessions:" + authorID, function(err, author2sessions)
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that.db.get("author2sessions:" + authorID, function(err, author2sessions)
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{
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if(ERR(err, callback)) return;
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//the entry doesn't exist so far, let's create it
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if(author2sessions == null)
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{
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author2sessions = {sessionIDs : {}};
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}
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//add the entry for this session
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author2sessions.sessionIDs[sessionID] = 1;
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//save the new element back
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db.set("author2sessions:" + authorID, author2sessions);
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that.db.set("author2sessions:" + authorID, author2sessions);
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callback();
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});
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}
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], function(err)
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{
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if(ERR(err, callback)) return;
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//return error and sessionID
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callback(null, {sessionID: sessionID});
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})
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}
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exports.getSessionInfo = function(sessionID, callback)
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SessionManager.prototype.getSessionInfo = function(sessionID, callback)
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{
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//check if the database entry of this session exists
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db.get("session:" + sessionID, function (err, session)
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this.db.get("session:" + sessionID, function (err, session)
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{
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if(ERR(err, callback)) return;
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//session does not exists
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if(session == null)
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{
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callback(new customError("sessionID does not exist","apierror"))
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callback(new customError("sessionID does not exist","apierror"));
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}
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//everything is fine, return the sessioninfos
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else
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@ -202,7 +209,7 @@ exports.getSessionInfo = function(sessionID, callback)
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callback(null, session);
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}
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});
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}
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};
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/**
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* Deletes a session
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@ -211,15 +218,16 @@ exports.deleteSession = function(sessionID, callback)
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{
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var authorID, groupID;
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var group2sessions, author2sessions;
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var that = this;
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async.series([
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function(callback)
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{
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//get the session entry
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db.get("session:" + sessionID, function (err, session)
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that.db.get("session:" + sessionID, function (err, session)
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{
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if(ERR(err, callback)) return;
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//session does not exists
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if(session == null)
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{
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@ -230,7 +238,7 @@ exports.deleteSession = function(sessionID, callback)
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{
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authorID = session.authorID;
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groupID = session.groupID;
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callback();
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}
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});
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@ -238,7 +246,7 @@ exports.deleteSession = function(sessionID, callback)
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//get the group2sessions entry
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function(callback)
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{
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db.get("group2sessions:" + groupID, function (err, _group2sessions)
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that.db.get("group2sessions:" + groupID, function (err, _group2sessions)
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{
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if(ERR(err, callback)) return;
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group2sessions = _group2sessions;
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@ -248,7 +256,7 @@ exports.deleteSession = function(sessionID, callback)
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//get the author2sessions entry
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function(callback)
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{
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db.get("author2sessions:" + authorID, function (err, _author2sessions)
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that.db.get("author2sessions:" + authorID, function (err, _author2sessions)
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{
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if(ERR(err, callback)) return;
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author2sessions = _author2sessions;
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@ -259,16 +267,16 @@ exports.deleteSession = function(sessionID, callback)
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function(callback)
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{
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//remove the session
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db.remove("session:" + sessionID);
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that.db.remove("session:" + sessionID);
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//remove session from group2sessions
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delete group2sessions.sessionIDs[sessionID];
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db.set("group2sessions:" + groupID, group2sessions);
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that.db.set("group2sessions:" + groupID, group2sessions);
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//remove session from author2sessions
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delete author2sessions.sessionIDs[sessionID];
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db.set("author2sessions:" + authorID, author2sessions);
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that.db.set("author2sessions:" + authorID, author2sessions);
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callback();
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}
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], function(err)
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@ -276,14 +284,15 @@ exports.deleteSession = function(sessionID, callback)
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if(ERR(err, callback)) return;
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callback();
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})
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}
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};
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exports.listSessionsOfGroup = function(groupID, callback)
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SessionManager.prototype.listSessionsOfGroup = function(groupID, callback)
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{
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groupMangager.doesGroupExist(groupID, function(err, exists)
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var that = this;
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this.groupMangager.doesGroupExist(groupID, function(err, exists)
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{
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if(ERR(err, callback)) return;
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//group does not exist
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if(exists == false)
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{
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@ -292,17 +301,18 @@ exports.listSessionsOfGroup = function(groupID, callback)
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//everything is fine, continue
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else
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{
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listSessionsWithDBKey("group2sessions:" + groupID, callback);
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that.listSessionsWithDBKey("group2sessions:" + groupID, callback);
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}
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});
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}
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};
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exports.listSessionsOfAuthor = function(authorID, callback)
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{
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authorMangager.doesAuthorExists(authorID, function(err, exists)
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SessionManager.prototype.listSessionsOfAuthor = function(authorID, callback)
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{
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var that = this;
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this.authorMangager.doesAuthorExists(authorID, function(err, exists)
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{
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if(ERR(err, callback)) return;
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//group does not exist
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if(exists == false)
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{
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//everything is fine, continue
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else
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{
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listSessionsWithDBKey("author2sessions:" + authorID, callback);
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that.listSessionsWithDBKey("author2sessions:" + authorID, callback);
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}
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});
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}
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};
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//this function is basicly the code listSessionsOfAuthor and listSessionsOfGroup has in common
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function listSessionsWithDBKey (dbkey, callback)
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SessionManager.prototype.listSessionsWithDBKey = function listSessionsWithDBKey (dbkey, callback)
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{
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var sessions;
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var that = this;
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async.series([
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function(callback)
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{
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//get the group2sessions entry
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db.get(dbkey, function(err, sessionObject)
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that.db.get(dbkey, function(err, sessionObject)
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{
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if(ERR(err, callback)) return;
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sessions = sessionObject ? sessionObject.sessionIDs : null;
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@ -333,18 +343,18 @@ function listSessionsWithDBKey (dbkey, callback)
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});
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},
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function(callback)
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{
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{
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//collect all sessionIDs in an arrary
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var sessionIDs = [];
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for (var i in sessions)
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{
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sessionIDs.push(i);
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}
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//foreach trough the sessions and get the sessioninfos
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async.forEach(sessionIDs, function(sessionID, callback)
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{
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exports.getSessionInfo(sessionID, function(err, sessionInfo)
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that.getSessionInfo(sessionID, function(err, sessionInfo)
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{
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if(ERR(err, callback)) return;
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sessions[sessionID] = sessionInfo;
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@ -360,7 +370,6 @@ function listSessionsWithDBKey (dbkey, callback)
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}
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//checks if a number is an int
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function is_int(value)
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{
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return (parseFloat(value) == parseInt(value)) && !isNaN(value)
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function is_int(value) {
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return (parseFloat(value) == parseInt(value, 10)) && !isNaN(value);
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}
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