Messenger Design Description
Contents
1. Messenger Design Description Version 3 0 Messenger Version 3 0 Design Description Date 2004 12 17 Revision ae 2004 11 24 1 0 ee Draft Jonas BEL BE Zahid Zdenek Tihana Marko 2004 12 10 Done the most of the re doing of Zahid this doc Some comments left 2004 12 11 2 1 have done some formatting on Jonas the whole text plus making picture out of the OSD to be able to adjust the size f them to fit better to page have added some comments that need to be fixed 2004 12 11 2 2 Made some changes with the Zahid via Jonas headings around heading 3 2004 12 15 2 3 Made new figure 2 in section 2 2 In section 2 3 1 added more info on shutdown program procedure In section 2 3 3 added some explanation In section 2 3 6 added some detailed description Spellchecked whole document 2004 12 15 2 4 Changed commentary on the web Zdenek pages Add risk 2004 12 15 2 5 Added pictures of predefined and Marko search tab Made some minor changes in the text corrected grammatical errors in section 2 3 2004 12 17 2 6 Grammatical check and correction Changed some text Copied introduction from req doc Rearranged positions and sizes of pictures in Web interface chapter 2004 12 16 Did the last formatting of the doc Page 1 Messenger Version 3 0 Design Description Date 2004 12 17 Table of Contents 1 Introduction 3 1 1 Purpose of this document 3 1 2 Intended Audience 3 1 3 Scope 32. 0 Design Description Date 2004 12 17 Web pages differ when logged in as administrator and super administrator Difference is visible in member page where only super administrator can delete members and all their records As you can see in the figure 18 next to each project name delete link is placed When super administrator clicks to this link member s account is locked This means that only his her name is deleted from the project table Conversations in which user participated remain in database 2 messenger project name Jonas Wadsten email jonas wadsten nu phone 46 8 568 568 52 Pannan mobile 46 70 159 85 52 faxnr 46 8 568 568 80 company The Best Company project messenger CVSQL add project Bluetooth Figure 18 Edit member page for super administrator In edit project page depicted in figure 19 super administrator can delete the project S He can from combo box choose name of the project edit details or lock the project with all its records and members To lock the project super administrator presses delete which means that no more conversations are saved to this project Members are also locked which means that the database cannot be changed any more To edit details Super administrator presses update hyperlink S he can move members from one project to another same as administrator messenger project webinterface v 1 0 project title project B v delete Start d
3. 1 4 Definitions and acronyms 4 1 4 1 Acronyms and abbreviations 4 1 5 Related Documents 4 2 External interfaces 5 2 1 Software Architecture 5 2 2 System Decomposition 6 2 3 Graphical User Interface for the Messenger client 8 2 3 1 Main program window 8 2 3 2 Tabs 9 2 3 3 Menu 12 2 3 4 Icons 12 2 3 5 Cursors 12 2 3 6 System Tray Menu 13 2 4 Web Page 14 2 4 1 Graphical User Interface 14 3 Detail Software Design 21 3 1 Class Relationship diagram CRD 21 3 2 Object Sequence diagram 22 3 3 Database design description 26 3 4 Error handling 29 4 Approvals 29 Page 2 Messenger Version 3 0 Design Description Date 2004 12 17 1 Introduction Some communication between members in a software project leaves traces such as emails or protocols from meetings that make it possible to retrieve information later on Other communication channels leave no trace The task of this project is therefore to store relevant chat sessions in a way so that this information can be easily retrieved later Though they sometimes do have an option to save a conversation this option is limited to individual saving That means the information is available only to the participant of this kind of conversation who actually saved the conversation The other participants can t retrieve it unless they also saved it This is however not formal enough because every team member should have accesses to the same relevant information concerning the me
4. Search tab in front e Options opens the Options Window e Help opens the User Manual in the default text editor e About opens the Standard About Dialog message box with program version and authors e Shutdown Initiates program shutdown All of these options can be accessed in some other way through the Main program window Page 13 Messenger Version 3 0 Design Description Date 2004 12 17 2 4 Web Page Customer wants a homepage with information about saved conversations related to the projects and engine to search within the conversations This document specifies the design of the product 2 4 1 Graphical User Interface The actor has to log in After log in actor can search for conversation s he would like to find Administrator can also add new members and new projects Super administrator moreover is responsible for deleting members and projects Figure 7 depicts first page visible to user This page represents log in page Actor has to type his her username and password Then click on login The page will look on the Internet like in the picture messenger project webinterface v 1 0 Figure 7 The login page Page 14 Messenger Version 3 0 Design Description Date 2004 12 17 Figure 8 depicts change password page where actor can change his her password Actor is obliged to change password after first log in New password has to be from four to sixteen characters long cannot be same as log
5. Http Request amp response Http Request amp response Capture Incoming Messenger Port Data Figure 1 Architectural View Page 5 Messenger Version 3 0 Design Description Date 2004 12 17 2 2 System Decomposition attaches to INSTANT MESSENGER and captures IMs MESSENGER SPECIFIC MODULE detect load INSTANT appropriate ann MESSENGER MESSENGER presence SPECIFIC MODULE SHARED MEMORY SHARED MEMOR Y start monitoring initialize encrypt and save to local file read from local file and decrypt CLIENT SIDE se eg SS eS a ee ee ee ee a a a ee SERVER SIDE i i DATABASE TE COMMUNICATION protocol l DAEMON i SERVER SIDE Figure 2 System decomposition Page 6 Messenger Version 3 0 Design Description Date 2004 12 17 This schematic represents modules in the source code of our project and the way these modules communicate The module schematic has been inherited from the last year project Green dotted line outlines light green area that represents server side of our application Similarly blue dotted line outlines light blue area that represents client side of our application Each module is colored into its own color Outline is a darker shade and fill is somewhat lighter shade of that color Thin arrows in outline color of a certain module represent tasks executed by that object Significant parts of some modules are outlined in the
6. IMARY KEY ChatID COMMENT Saves chat details and conversation Page 28 Messenger Version 3 0 Design Description Date 2004 12 17 3 4 Error handling Database disconnected Save the conversation encrypted locally restore database connection when possible send the conversation saved locally and that are finished Start record locally the chat sessions locally and that are finished Start record locally the chat sessions database connection it will upload conversation and delete it locally Restore database connection at restart send the conversation saved chat session locally and that are finished Start record locally the chat session Messenger program Treat it is as a finished chat session and save it to central database if crash during recording the sessions starts up again with the same users creates a new chat session with the same chat id During chat session user Treat it is as a finished chat session and save it to central database if accidentally close the the sessions starts up again with the same users creates a new chat chat window session with the same chat id Password lost or wrong Sent email to administrator that can check the database and see actor s set details The administrator will tell to actor or sent it to him her Actor should change the password after next login 4 Approvals Date yyyy mm dd Signature Page 29
7. T 3 NOT NULL Messengeri D INT 2 NOT NULL MesengerAccountI D VARCHAR 30 NOT NULL COMMENT Keeps record of messengers Ids which member has which messenger id s CREATE TABLE MemberlnProject Projecti D INT 3 NOT NULL Memberl D INT 3 NOT NULL COMMENT Keeps team members record in which project they are working CREATE TABLE Guest GuestI D INT 3 NOT NULL AUTO_INCREMENT GuestUseMessengerl D INT 2 NOT NULL GuestMessengerAddress VARCHAR 30 NOT NULL Chati D INT 6 NOT NULL PRIMARY KEY GuestI D COMMENT Keeps guests information participating in chatting CREATE TABLE FeedBack Sender D INT 4 NOT NULL AUTO_INCREMENT FirstName VARCHAR 20 NOT NULL LastName VARCHAR 20 NOT NULL Email VARCHAR 30 NOT NULL CurrentDate DATE NOT NULL Comments VARCHAR 255 NOT NULL PRIMARY KEY SenderlD COMMENT saves feedback from users CREATE TABLE ChatSession TBIID INT 6 NOT NULL AUTO_INCREMENT Chati D INT 6 NOT NULL Memberl D INT 3 NOT NULL Projecti D INT 3 NOT NULL Messengeri D INT 2 NOT NULL PRIMARY KEY TBIID COMMENT Keeps chat sessions CREATE TABLE ChatDetail ChatI D INT 6 NOT NULL AUTO_INCREMENT ConversationStartDateTime DATETIME NOT NULL ConversationEndDateTime DATETIME NOT NULL RecordedBy INT 3 NOT NULL Conversation TEXT NOT NULL PR
8. almavist Hjorthagen Bert G ran Persson Figure 15 Add project page for administrator Page 18 Messenger Version 3 0 Design Description Date 2004 12 17 Administrator uses edit project page to change details about project or to add and remove members from project This is depicted in figure 16 Administrator adds or removes members from project by holding CTRL and clicking on member s names To update information s he needs to press update when finished messenger project webinterface v 1 0 project title project B Start date 2004 04 15 yyyy mm dd end date 2005 10 30 yyyy mm dd add members Sven Persson Igor Malmqvist Hjorthagen Bert G ran Persson edit project Figure 16 Edit project page for administrator Difference between result page when logged in as user or as administrator and super administrator exists only in left panel Administrator and super administrator can also choose from add and edit possibilities as it is displayed in the figure 17 Conversation page also differs only in the left side messenger project webinterface v 1 0 i Start search result project name project b project members g ran igor date of chat 1 2004 11 10 2004 11 14 project name project b project members joans zihad date of chat 2004 10 23 Figure 17 Result page for administrator super administrator Page 19 Messenger Version 3
9. ate 2004 04 15 yyyy mm dd end date 2005 10 30 yyyy mm dd add members Sven Persson Igor Malmqvist Hjorthagen Bert G ran Persson edit project Figure 19 Edit project page for super administrator Page 20 Messenger Version 3 0 Design Description Date 2004 12 17 3 Detail Software Design 3 1 Class Relationship diagram CRD This part of the document describes the static behavior of the system It explain user defined classes and the responsibility and relationships between classes MessengerController po stoR ecord void Airstname char 20 saveLocally void char secondname int 20 deleteLocall yy void 7 teheck System Status0 boolean int contact nocint checkMemberLoginetSstring DE char addre ss int 30 check chat ay void tconnect dit boolean tconnectlocaly void t savel oserver voie l heckuserg int search void veiti boolean taddt void taLtoR uni void 2heckmemberltint acldP erson t void t deletePersoncd void t chect Person Status void Errorhandler Erramhandlert t void t tshowly void projestMember person tatus fri int status to int Figure 20 The Class Relationship diagram Page 21 Messenger Version 3 0 Design Description Date 2004 12 17 3 2 Object Sequence diagram Object sequence diagram is a type of interaction diagram This model shows the dynamic behavior of the system Main sequence diagrams of m
10. change color e lf there are some recording in progress e lf there aren t any recording in progress but there are chats available for record e lf there aren t any chats in progress but there is at least one Messenger Application active e lf there aren t any Messenger Application active 2 3 5 Cursors When some operation in progress cursor should change to standard windows working cursor rotating sand clock Page 12 Messenger Version 3 0 Design Description Date 2004 12 17 2 3 6 System Tray Menu Open Main Window Record sStop Stop All Recording Sent to Database Preset Search Options About Exit Figure 6 The System tray menu The system tray menu is accessed by right clicking the system tray icon The menu floats above system tray and its options can be accessed through a left click Each of the options either initiates some process or opens a relevant dialog window The system tray menu contains following menu options e Open Main program window opens the Main program window e Record Stop opens the Main program window with Record tab in front e Stop All Recording brings all currently active recordings to a stop program behaves in the same way as the Stop All Recording button in the Record Tab of the Main program window is pressed doesn t open the Main program window e Preset opens the Main program window with Predefined tab in front e Search opens the Main program window with
11. essenger client system are as follows The figure 21 describes the object sequence diagram of the system start up When any machine containing the Messenger client starts system automatically starts by calling the autoRun method of the system class OBControler Error Handler l l _L Autorun t o 5 2 DBConnect t P a i i 3 fear show 4 Cap Meesseni j S cChkMember chkcChat Figure 21 OSD OF System Start up Page 22 Messenger Version 3 0 Design Description Date 2004 12 17 Figure 22 describes object sequence diagram of the login session use case To login user name and password as well as connection to database are required If all these prerequisites are met data verification is possible If data is wrong error is displayed otherwise login successfully ErrorHandler i l Livarly incl If Normal User Search If Admin Search amp add If super administrator gt Search Add amp Delete Figure 22 OSD of Login Session Page 23 Messenger Version 3 0 Design Description Date 2004 12 17 Figure 23 describes object sequence diagram of multiple scenarios of the system It includes addition deletion and search of project members and project information by the administrator ng Search Invalid Show E o Add 88 fp ttn _ delete o rn l Figure 23 OSD of ADD I M Delete I M and Search Page 24 Messenger Version 3 0 Design Descripti
12. etings and this information should be secure When each team member saves the conversation him herself locally in plain text format data manipulations are possible Consider a case of some unscrupulous team member that is capable of changing the text of conversations This hypothetical team member gives promises he can t deliver and then later changes the text of conversations in order to avoid responsibility for his actions This hypothetical case can cause much harm to team work in distributed software development process The main goal of this project is therefore to store relevant chat sessions in one place regardless of the Instant messenger participant s use so that all the participants can easily retrieve this information later The information stored should be secure because of the formal character of meetings 1 1 Purpose of this document The purpose of this document is to describe the design phase of the project The document describes the system architecture structural design low detail design and the interfaces of the web and the messenger client This document will be modified and updated throughout the lifespan of this project 1 2 Intended Audience Our intended audience is e Steering Group e Project staff e Class fellows and customer 1 3 Scope The task of this project is to store relevant chat sessions in a way that this information can be easily retrieved later Project outputs will be development of a small dae
13. gram through Shutdown option in the Main Menu or through the Shutdown option in the system tray menu The Main Menu is accessible through main program window and the system tray menu by right clicking on the system tray icon Page 8 Messenger Version 3 0 Design Description Date 2004 12 17 2 3 2 Tabs Users most common action is summarized into three groups and should therefore be implemented with Tabs in the main area of the Main window Record Tab is the first Tab most common to use and is therefore displayed by default and it is divided into two areas Chats list and Record Functions Chat list is similar with ICQ Contact list It shows Chats currently being recorded first in different color red with recording icon beside Divided by the gray line from the upper part below is list available chats which are currently not being recorded in green with not recording icon The Chats in both parts of the list are selectable in the same way as selection of the files in a directory in Windows Explorer application which are windows standard Record Functions buttons Record Stop recording Stop All and Send to Database Button Buttons are wide have both icon and text assigned to appropriate function When one or more Chat s from lower part of the Chat list not recording part is selected Record Button becomes active Pressing this button will start recording process for selected Chat s When one or more Chat s from upper part
14. h page After running a search user is transferred to a search result page Design of this page Is shown in figure 11 A line divides selected conversations To see the actual conversation actor was looking for s he has to click to the date of the conversation messenger project webinterface v 1 0 i Start search result project name project b project members g ran igor date of chat 2004 11 10 2004 11 14 project name project b project members joans zihad date of chat 2004 10 23 Figure 11 Result page Page 16 Messenger Version 3 0 Design Description Date 2004 12 17 Selected conversation is displayed like in figure 12 As you can see on the figure lines separate details about the conversation Details displayed are name of the project members who were in a conversation and date when conversation was saved On the left side of the page there are start personal info and logout links Clicking them actor can either return to the search page change the personal data or logout In the figure it is visible that the members lines are colored differently This is done to make it easy for actor to recognize different peoples chats messenger project webinterface v 1 0 conversation project name project b project members g ran igor date of chat 2004 11 10 10 10 23 igor hi 10 11 15 igor Figure 12 Conversation page In fig
15. ich project Relationship between Member and project MemberMsngrAccount One member may have different messenger Ids For example Irfan has nice_pak hotmail com irfan icq com It means the member can use different messenger for conversation There isn t any fixed messenger for conversation Relationship between Member and Messenger with MessengerAccountl D attribute Create Table commands and Attributes CREATE TABLE Project Projecti D INT 3 NOT NULL AUTO INCREMENT ProjectName VARCHAR 30 NOT NULL StartDate DATE NOT NULL EndDate DATE NOT NULL AddedBy INT 2 NOT NULL PRIMARY KEY ProjectID COMMENT Keeps project information CREATE TABLE TeamMember MemberI D INT 3 NOT NULL AUTO INCREMENT UserName VARCHAR 20 NOT NULL Password VARCHAR 20 NOT NULL FirstName VARCHAR 20 NOT NULL LastName VARCHAR 20 NOT NULL EntryDate DATE NOT NULL Phone INT 14 NOT NULL AccessRights VARCHAR 20 NOT NULL Designation VARCHAR 20 NOT NULL PRIMARY KEY Memberl D Page 27 Messenger Version 3 0 Design Description Date 2004 12 17 CREATE TABLE Messenger Messengerl D INT 2 NOT NULL AUTO_INCREMENT MessengerName VARCHAR 20 NOT NULL PortNumber INT 4 NOT NULL PRIMARY KEY MessengerlD COMMENT Keeps chat messengers information CREATE TABLE MembersMsngrAccount MemberI D IN
16. in name To save new password to database user has to click to change messenger project webinterface v 1 0 2 Start old paw new pw 1 12 new pw 2 KEKKEKERE Figure 8 Change personal info page Personal info page contains all relevant data about an actor Actor can see all the data as it is shown on the figure 9 He can also change and update data e g email telephone number password etc Actor is not allowed to change the project s he is working in messenger project webinterface v 1 0 2 name Jonas Wadsten personal info Email jonas wadsten nu Phone 46 8 568 568 52 Mobile 46 70 159 85 52 Faxnr 46 8 568 568 80 Company The Best Company Project s Messenger CVSQL eKEKEK aka KEKKEKEKE Figure 9 Personal Info page Page 15 Messenger Version 3 0 Design Description Date 2004 12 17 Search page is the core of all web pages You can see its design in figure 10 Actor can search for a conversation by criteria such as project name project member keyword or dates of conversations For easier search project name and project member fields are combo boxes Also notice that format of dates is set As you can see on the left side of the figure there is a hyperlink that refers to personal data messenger project webinterface v 1 0 project project a member member names date from 2004 11 05 yyyy mm dd date to 2004 11 28 yyyy mm dd Figure 10 Searc
17. ject or private nature The SERVER SIDE DATABASE COMMUNICATION DAEMON waits for a connection on a certain port and then transfferes all request to the database locally as this two modules are on the same server Page Messenger Version 3 0 Design Description Date 2004 12 17 2 3 Graphical User Interface for the Messenger client When program is run the Main program window should appear by default All buttons or any kind or other input fields in any menu or window of this application are grayish in color when inactive disabled 2 3 1 Main program window X gt Program Hame Main Options Help About Record T Predefined Search Recorded ico jonas Warko Aid H B rene Ico Not Recorded ico fM Marko hic N ico Warko icol zahid won Start Record Stop Record on Stop All Recording send to Database Figure 3 The Main window Main window of the program GUI is composed of a Title Bar Menu Bar and three Tabs in the main area Record Tab Predefined Tab and Search Tab Title Bar contains Name of the program and also three buttons Minimize Maximize Restore Down and Close Button which is windows standard Only exception from windows standard function these perform is Close Window button which does not close the program when clicked on the Main window Instead it minimizes the program to System Tray as it is the Standard with Messenger Applications There are two ways to close shutdown the pro
18. mon or plug in that runs locally and connects somehow to or runs as a plug in in any popular chat messenger program such as ICQ AIM MSN messenger and Yahoo messenger Client program saves chat sessions in a central project database e g MySQL or PostgreSQL database Page 3 Messenger Design Description Version 3 0 Date 2004 12 17 1 4 Definitions and acronyms 1 4 1 Acronyms and abbreviations Acronym CRD 1 5 Related Documents Document identity Project Description Requirements definition Definitions Class Relationship Diagram Object Sequence Diagram Interaction Diagram State Transition Diagram Database Document title Project description document Requirement Definition document Page 4 Messenger Version 3 0 Design Description Date 2004 12 17 2 External interfaces 2 1 Software Architecture Messenger software with its web interface is actually three tier architecture where the web pages are used to add new members projects as well as search the chat sessions Messenger software will connect to the centralized database residing on the server and save the conversations into related database tables Whenever team members will start chatting the system will store the chat locally and then onto the server Figure 1 explains the overall architecture and connectivity of the system to the server Capture Incoming Messenger Port Data Three Tier SESS Architecture Web Interface
19. n of different messengers For example Yahoo Msn Miranda messengers etc ChatDetail Stores different conversation details like start and end time of conversation and conversation itself etc Page 26 Messenger Version 3 0 Design Description Date 2004 12 17 Guest We have separated the guest information storage from team member information It is better to make a new table for guests for better efficiency and less disk usage It is better to assume that guests will not join the chats so often ChatSession Stores the conversation of at least two members one guest if talking together Relationship among MembersMsngrAccount TeamMember Project ChatDetail and ChatSession Although we don t need to store members actual Id from TeamMember The need is to store the Messenger id which he or she is using during chat But we will store it so that it would be very easy in order to search the chats by member s UserName For example Irfan is using nice_pak hotmail com and zahid is using zahid yahoo com When the system will search these Messenger ids in MemberMsngrAccount table it will be easy to get the actual Id of team member in order to proceed further But what happens if we start to search chats of Username irfan The query will get the Memberld from TeamMember table and search out the chats of member irfan in ChatSesion and ChatDetail tables MemberlnProject Keeps the record which member s is involved in wh
20. of the Chat list recording part is selected Stop Recording Button becomes active it is grayish while inactive Pressing this button will initiate stop recording process for selected Chat s This button is active when there are any Chats on a recording part of the Chat list upper part Pressing this button will initiate stop recording process for all Chat s in the recording part of a Chat list This button is always active Pressing it will initiate sending locally stored chat sessions to the database on the server Record tab can be seen in figure 3 on the page 7 Predefined Tab serves as editor of presets in recording process Here you can add nicks from your Messenger Application Contact List and preset the recording process for these contacts It is also possible to choose between two options recording conversations with multiple participants when the contact is one of them or recording private chats only 4 eyes only This tab is also divided into two parts First part is a list of contacts that already have the recording process preset The other part consists of three Buttons Add Edit and Remove Button List of contacts that already have the recording process preset Is a list type already familiar from Windows environment It has three fields Nickname Contact Messenger Description and private 4 eyes only field Nickname Contact and Messenger fields are automatically retrieved from the messenger when adding contacts Desc
21. on Date 2004 12 17 Figure 24 is representation of chat scenario Figure depicts two project members chatting If this is the case than chat is saved automatically If there is one guest chatting then system asks to add guest or not Depending of the answer chat is started Er men Eo Errr hander 1 0 Be i i i i i 2 ChkMem t i 3 D0BConnect i i i i i 4 Start Record i I i i F i i i 3 i d i 5 5top Record i i i i i i i i i i i If 1 Member 1 Guest 3 Show 4 4 4dd Guesti 5 Start Record 6 StopRecord Fi Save t i a Figure 24 OSD for the Chatsessions Page 25 Messenger Version 3 0 Design Description Date 2004 12 17 3 3 Database design description MessengerID MessengerName Porthumber MessengerID i i FrojectName Mesenger ccountID StartDate i EndDate AddedBy GuestlseMessengerlD GuestMessenger ddress ChatID ConversationStartDateTime ConversationEndDate Time RecordedBy Conversation Figure 25 Entity Relationship Diagram Entities Tables Description TeamMember keeps the record of team members as well as keeps the record of administration member who has access rights to enter the website in order to view the conversation Project The project id s and name will be stored in this table Relationship between Project and Admin One admin member can add many projects Messenger Stores the informatio
22. ow amp Messenger Main Options Help About Fecord Predefined Search Mickname Messenger Description Private Jorss MSH zdenek MSI Add member to list Edit list Remove member fromm list Figure 4 Predefined tab Search tab contains a search form used to retrieve information about stored conversations It has two parts On the top part there are two checkboxes Search Local File and Search Database These two are both checked by default all combinations are possible When neither of these is checked the second part of this tab except for Cancel button is disabled The second part is a form where user can enter search parameters These are keyword s field textbox username nickname contact field textbox time period input project drop down list Search and Cancel buttons below Time period input will probably be a two calendars input for a date and simple input for hours and minutes small textbox When user clicks on the Search button new window appears containing Search results On that window there is a list of chats found connected to multiple files in which chat is stored this is not viewable but is known to the program Also there are View and Cancel buttons User can select one or more chat s from the list Page 10 Messenger Version 3 0 Design Description Date 2004 12 17 When the View button is pressed program decrypts files in which selected chat s is are stored and it s
23. ription field can be changed by the user Edit button but is left blank by default Private 4 eyes only is a checkbox field which can be checked or unchecked but is not checked by default Add button is always available Pressing this button opens a new window with a checkbox list of currently active Messenger Applications that are also supported by the program Below that simple list there is a Retrieve Button which is active when at least one of the Messenger Application on the list is selected There is also a Cancel button Pressing the Retrieve button results in a new window with a checkbox list of contacts messenger pairs retrieved from selected Messenger s that are not already on a preset list This window has also two buttons below that list Add and Cancel Add button is Inactive until at least one contact from the list is selected When pressed this button initiates the function which adds selected contact messenger pairs to the preset list on the Predefined tab in the main window Page 9 Messenger Version 3 0 Design Description Date 2004 12 17 Edit button is available when a contact from the preset list is selected Pressing this button brings out a form where all the fields of the preset list can be changed Remove button is available when a contact from the preset list is selected Pressing this button removes selected contact s from the preset list Predefined tab described above can be seen in the figure 4 bel
24. same color as the module but different shade of fills color The thicker arrows in red color mark standard communication protocols The type of the protocol is also given The MAIN module initializes LURKER module and initiates monitoring LURKER module checks all running processes for new infiltration targets When it founds one new Messenger program it loads defined dll file into target s process It also keeps track of already infiltrated Instant Messenger programs The MESSENGER SPECIFIC module when attached to an Instant messenger application via hooks or as a plug in gets messages from Instant messenger and sends them to STARGATE module via shared memory The STARGATE module then transfers the message to MAIN module The STARGATE module provides synchronization for accessing shared memory and takes care that messages are not overwritten before module that they should be read by really reads them MAIN module is concerned with communicating with the user through an USER INTERFACE and also with Instant Message storage handling DB COMMUNICATION client is in charge of communication with a database on a server LOCAL STORAGE CLIENT takes care of storing the data locally Storing is always done locally and upon sending data to the database the data is erased locally User can determine which conversations he wants to be stored only locally That way user can save all his conversations using one application regardless if they are part of the pro
25. tores each chat into a temporary file decrypted and merged files for each chat Then an external viewer which opens them is called Search tab described above can be seen in the figure 5 below amp Messenger Main Options Help About Fecord Predefined Search Search options Wo Search database W Search local files Search criterion User name Keyword Z o Project Time period Stop tirne Start time ron Figure 5 Search tab Page 11 Messenger Version 3 0 Design Description Date 2004 12 17 2 3 3 Menu Menu Contains Shutdown function which shutdowns the program Opens the Options Window Options Window has two tabs General and Database Settings All advanced options such as external viewer location Notepad by default conversation storage folder Database Settings tab holds all options regarding the database like username password remember encrypted password checkbox server location etc Clicking on Help menu in this version will simply open the user manual in a default text viewer This could be changed in later versions in a way that clicking on this menu would open a standard Windows help window Standard About Dialog is a simple message box which holds the information about the version of a program that is version number and or name and about its authors that Is name of company or list of programmers 2 3 4 Icons Icon in system tray should
26. ure 13 you can see how the left menu when logged in as administrator differs from user s menu Administrator can add and edit member and also add and edit project Figure 13 shows add member when administrator adds new members messenger project webinterface v 1 0 rm add member add project Bluetooth v Figure 13 Add member page for administrator Page 17 Messenger Version 3 0 Design Description Date 2004 12 17 Edit member page which is shown in the figure 14 gives administrator rights to change the details about a user Administrator can also on this page add a user to another project 33 messenger project it name Jonas Wadsten email jonas wadsten nu phone 46 8 568 568 52 mobile 46 70 159 85 52 edit member i faxnr 46 8 568 568 80 company The Best Company project messenger CVSQL add project Bluetooth Figure 14 Edit member page for administrator Figure 15 shows how administrator sees add project page On this page administrator adds a project to the database with all the details about the project such as start and end date and the members of the project To add more members administrator has to press CTRL click on the name of the member that will be involved in the project When all the details are chosen administrator saves project to the database by clicking on add messenger project webinterface v 1 0 add members Sven Persson Igor M
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