Description
Intro. to Network Programming
Description
Continuing the first part, you are asking to implement the functions of the Bulletin Board System (BBS) server.
Requirement
The service accepts the following commands and at least 10 clients:
When client enter command incompletely E.g., missing parameters, the server should show command format for client.
Command format Description Result
create-board Create a board which named .
must be unique.
If Board’s name is already used, show failed
message, otherwise it is success.
Must be logged in when creating board’s
name
Success Create board successfully.
Fail (1) Board already exist.
Fail (2) Please login first.
create-post –title <br />
–content <content><br />
(command is in the same line )<br />
Create a post which title is <title> and content<br />
is <content>.<br />
Use –title and –content to separate titles and<br />
content.<br />
<tilte> can have space but only in one line.<br />
<content> can have space, and key in <br /> to<br />
indicate a new line.<br />
Success Create post successfully.<br />
Fail (1) Board does not exist.<br />
Fail (2) Please login first.<br />
list-board ##<key> List all boards in BBS.<br />
<key> is a keyword, use ## <key> to do<br />
advanced query.<br />
Index Name Moderator<br />
<Index1> <Name1> <Moderator1><br />
list-post <board-name> ##<key> List all posts in a board named <board-name><br />
<key> is a keyword, use ## <key> to do<br />
advanced query.<br />
Success<br />
ID Title Author Date<br />
<ID1> <Title1> <Author1> <Date1><br />
Fail Board does not exist.<br />
read <post-id> Show the post which ID is <post-id>. Success Author :<Author1><br />
Title :<Title1><br />
Date :<Date1><br />
—<br />
<content><br />
—<br />
<User1> : <Comment1><br />
Fail Post does not exist.<br />
delete-post <post-id> Delete the post which ID is <post-id>.<br />
Only the post owner can delete the post.<br />
If the user is not the post owner, show failed<br />
message, otherwise it is success.<br />
Success Delete successfully.<br />
Fail (1) Please login first.<br />
Fail (2) Post does not exist.<br />
Fail (3) Not the post owner.<br />
update-post <post-id> –title/content<br />
<new><br />
Update the post which ID is <post-id>.<br />
Use — to decide which to modify, title or<br />
content, and replaced by <new>.<br />
Only the post owner can update the post.<br />
If the user is not the post owner, show failed<br />
message, otherwise it is success.<br />
Success Update successfully.<br />
Fail (1) Please login first.<br />
Fail (2) Post does not exist.<br />
Fail (3) Not the post owner.<br />
comment <post-id> <comment> Leave a comment < comment > at the post<br />
which ID is <post-id>
Success Comment successfully.<br />
Fail (1) Please login first.<br />
Fail (2) Post does not exist.<br />
exit Close connection.<br />
Scenario<br />
bash$ telnet 127.0.0.1 7890<br />
********************************<br />
** Welcome to the BBS server. **<br />
% create-board NP_HW<br />
Please login first.<br />
% register Bob bob@qwer.asdf 123456<br />
Register successfully.<br />
% register Sam sam@qwer.com 654321<br />
Register successfully.<br />
% login Bob 123456<br />
Welcome, Bob.<br />
% create-board NP_HW<br />
Create board successfully.<br />
% create-board NP_HW<br />
Board already exist.<br />
% create-board OS_HW<br />
Create board successfully.<br />
% create-board FF<br />
Create board successfully.<br />
% list-board<br />
Index Name Moderator<br />
1 NP_HW Bob<br />
2 OS_HW Bob<br />
3 FF_HW Bob<br />
% list-board ##HW<br />
Index Name Moderator<br />
1 NP_HW Bob<br />
2 OS_HW Bob<br />
% create-post NCTU –title About NP HW_2 –content Help!<br />I have some problem!<br />
Board does not exist.<br />
% create-post NP_HW –title About NP HW_2 –content Help!<br />I have some problem!<br />
Create post successfully.<br />
% create-post NP_HW –title HW_3 –content Ask!<br />Is NP HW_3 Released?<br />
Create post successfully.<br />
% list-post NP<br />
Board does not exist.<br />
% list-post NP_HW<br />
% list-post NP_HW ##HW_2</p>
<p>% read 888<br />
Post does not exist.<br />
% read 1<br />
Author :Bob<br />
Title :About NP HW_2<br />
Date :2020-03-31<br />
—<br />
Help!<br />
I have some problem!<br />
—<br />
% update-post 888 –title NP HW_2<br />
Post does not exist.<br />
% update-post 1 –title NP HW_2<br />
Update successfully.<br />
% read 1<br />
Author :Bob<br />
Title :NP HW_2<br />
Date :2020-03-31<br />
—<br />
Help!<br />
I have some problem!<br />
—<br />
% logout<br />
Bye, Bob.<br />
% login Sam 654321<br />
Welcome, Sam.<br />
% update-post 1 –content Ha!<br />ha!<br />ha!<br />
Not the post owner.<br />
% delete-post 1<br />
Not the post owner.<br />
% comment 888 Ha! ha! ha!<br />
Post does not exist.<br />
% comment 1 Ha! ha! ha!<br />
Comment successfully.<br />
% read 1<br />
Author :Bob<br />
Title :NP HW_2<br />
Date :2020-03-31<br />
—<br />
Help!<br />
I have some problem!<br />
—<br />
Sam: Ha! ha! ha!<br />
% create-board Hello<br />
Create board successfully.<br />
% list-board<br />
Index Name Moderator<br />
1 NP_HW Bob<br />
2 OS_HW Bob<br />
3 FF_HW Bob<br />
4 Hello Sam<br />
% logout<br />
Bye, Sam.<br />
% login Bob 123456<br />
Welcome, Bob.<br />
% delete-post 1<br />
Delete successfully.<br />
% read 1<br />
Post does not exist.<br />
% logout<br />
Bye, Bob.<br />
% exit<br />
Grade (100%)<br />
⚫ create-board command. – (10%)<br />
⚫ create-post command. – (20%)<br />
⚫ list-board command. – (15%)<br />
⚫ list-post command. – (15%)<br />
⚫ read command. – (10%)<br />
⚫ delete-post command. – (10%)<br />
⚫ update-post command. – (10%)<br />
⚫ comment command. – (10%)<br />
Submission<br />
Please upload a zip file called “hw2_{$student_id}.zip” that includes your source code. Submission that don’t follow the rule<br />
will get 20% punishment on the grade.<br />
You will get 0 points on this project for plagiarism. Please don’t copy-paste any code!<br />
Note<br />
You will be asked to use AWS resources in projects 3 and 4, so we suggest you use AWS SDK supported languages to<br />
implement this project.<br />
Reference<br />
1. C/C++ Socket<br />
2. SQLite C/C++ Interface<br />
3. Linux socket SELECT<br />
4. AWS SDK supported languages</p>
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<script type="application/ld+json">{"@context":"https:\/\/schema.org\/","@graph":[{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"name":"Home","@id":"https:\/\/codeshive.com"}},{"@type":"ListItem","position":2,"item":{"name":"Intro. to Network Programming","@id":"https:\/\/codeshive.com\/product-category\/intro-to-network-programming\/"}},{"@type":"ListItem","position":3,"item":{"name":"Homework 2 – Bulletin Board System: Part 2 solved","@id":"https:\/\/codeshive.com\/product\/homework-2-bulletin-board-system-part-2-solved\/"}}]},{"@context":"https:\/\/schema.org\/","@type":"Product","@id":"https:\/\/codeshive.com\/product\/homework-2-bulletin-board-system-part-2-solved\/#product","name":"Homework 2 - Bulletin Board System: Part 2 solved","url":"https:\/\/codeshive.com\/product\/homework-2-bulletin-board-system-part-2-solved\/","description":"Intro. to Network Programming\r\nDescription\r\nContinuing the first part, you are asking to implement the functions of the Bulletin Board System (BBS) server.\r\nRequirement\r\nThe service accepts the following commands and at least 10 clients:\r\nWhen client enter command incompletely E.g., missing parameters, the server should show command format for client.\r\nCommand format Description Result\r\ncreate-board Create a board which named .\r\n must be unique.\r\nIf Board's name is already used, show failed\r\nmessage, otherwise it is success.\r\nMust be logged in when creating board\u2019s\r\nname\r\nSuccess Create board successfully.\r\nFail (1) Board already exist.\r\nFail (2) Please login first.\r\ncreate-post --title \r\n--content \r\n(command is in the same line )\r\nCreate a post which title is and content\r\nis .\r\nUse --title and --content to separate titles and\r\ncontent.\r\n can have space but only in one line.\r\n can have space, and key in to\r\nindicate a new line.\r\nSuccess Create post successfully.\r\nFail (1) Board does not exist.\r\nFail (2) Please login first.\r\nlist-board ## List all boards in BBS.\r\n is a keyword, use ## to do\r\nadvanced query.\r\nIndex Name Moderator\r\n \r\nlist-post ## List all posts in a board named \r\n is a keyword, use ## to do\r\nadvanced query.\r\nSuccess\r\nID Title Author Date\r\n \r\nFail Board does not exist.\r\nread Show the post which ID is . Success Author :\r\nTitle :\r\nDate :\r\n--\r\n\r\n--\r\n : \r\nFail Post does not exist.\r\ndelete-post Delete the post which ID is .\r\nOnly the post owner can delete the post.\r\nIf the user is not the post owner, show failed\r\nmessage, otherwise it is success.\r\nSuccess Delete successfully.\r\nFail (1) Please login first.\r\nFail (2) Post does not exist.\r\nFail (3) Not the post owner.\r\nupdate-post --title\/content\r\n\r\nUpdate the post which ID is .\r\nUse -- to decide which to modify, title or\r\ncontent, and replaced by .\r\nOnly the post owner can update the post.\r\nIf the user is not the post owner, show failed\r\nmessage, otherwise it is success.\r\nSuccess Update successfully.\r\nFail (1) Please login first.\r\nFail (2) Post does not exist.\r\nFail (3) Not the post owner.\r\ncomment Leave a comment < comment > at the post\r\nwhich ID is \r\nSuccess Comment successfully.\r\nFail (1) Please login first.\r\nFail (2) Post does not exist.\r\nexit Close connection.\r\nScenario\r\nbash$ telnet 127.0.0.1 7890\r\n********************************\r\n** Welcome to the BBS server. **\r\n% create-board NP_HW\r\nPlease login first.\r\n% register Bob bob@qwer.asdf 123456\r\nRegister successfully.\r\n% register Sam sam@qwer.com 654321\r\nRegister successfully.\r\n% login Bob 123456\r\nWelcome, Bob.\r\n% create-board NP_HW\r\nCreate board successfully.\r\n% create-board NP_HW\r\nBoard already exist.\r\n% create-board OS_HW\r\nCreate board successfully.\r\n% create-board FF\r\nCreate board successfully.\r\n% list-board\r\nIndex Name Moderator\r\n1 NP_HW Bob\r\n2 OS_HW Bob\r\n3 FF_HW Bob\r\n% list-board ##HW\r\nIndex Name Moderator\r\n1 NP_HW Bob\r\n2 OS_HW Bob \r\n% create-post NCTU --title About NP HW_2 --content Help!I have some problem!\r\nBoard does not exist.\r\n% create-post NP_HW --title About NP HW_2 --content Help!I have some problem!\r\nCreate post successfully.\r\n% create-post NP_HW --title HW_3 --content Ask!Is NP HW_3 Released?\r\nCreate post successfully.\r\n% list-post NP\r\nBoard does not exist.\r\n% list-post NP_HW\r\n% list-post NP_HW ##HW_2\r\n\r\n% read 888\r\nPost does not exist.\r\n% read 1\r\n Author :Bob\r\n Title :About NP HW_2\r\n Date :2020-03-31\r\n--\r\nHelp!\r\nI have some problem!\r\n--\r\n% update-post 888 --title NP HW_2\r\nPost does not exist.\r\n% update-post 1 --title NP HW_2\r\nUpdate successfully.\r\n% read 1\r\n Author :Bob\r\n Title :NP HW_2\r\n Date :2020-03-31\r\n--\r\nHelp!\r\nI have some problem!\r\n--\r\n% logout\r\nBye, Bob.\r\n% login Sam 654321\r\nWelcome, Sam.\r\n% update-post 1 --content Ha!ha!ha!\r\nNot the post owner.\r\n% delete-post 1\r\nNot the post owner.\r\n% comment 888 Ha! ha! ha!\r\nPost does not exist.\r\n% comment 1 Ha! ha! ha!\r\nComment successfully.\r\n% read 1\r\n Author :Bob\r\n Title :NP HW_2\r\n Date :2020-03-31\r\n--\r\nHelp!\r\nI have some problem!\r\n--\r\nSam: Ha! ha! ha!\r\n% create-board Hello\r\nCreate board successfully.\r\n% list-board\r\nIndex Name Moderator\r\n1 NP_HW Bob\r\n2 OS_HW Bob\r\n3 FF_HW Bob\r\n4 Hello Sam\r\n% logout\r\nBye, Sam.\r\n% login Bob 123456\r\nWelcome, Bob.\r\n% delete-post 1\r\nDelete successfully.\r\n% read 1\r\nPost does not exist.\r\n% logout\r\nBye, Bob.\r\n% exit\r\nGrade (100%)\r\n\u26ab create-board command. - (10%)\r\n\u26ab create-post command. - (20%)\r\n\u26ab list-board command. - (15%)\r\n\u26ab list-post command. - (15%)\r\n\u26ab read command. - (10%)\r\n\u26ab delete-post command. - (10%)\r\n\u26ab update-post command. - (10%)\r\n\u26ab comment command. - (10%)\r\nSubmission\r\nPlease upload a zip file called \u201chw2_{$student_id}.zip\u201d that includes your source code. 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