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Commit 6fd49b5

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Merge pull request avinashkranjan#208 from PrajjwalDatir/master
HTTP-Server-in-Python3-By-Prajjwal-Datir
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# HTTP Webserver From Scratch
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## Implemented RFC of HTTP using SOCKET programming in python3
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### Download this and store it into your home directory such that, This should be your path
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/home/maniac/HTTP-Prajjwal/
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### HOW TO RUN
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main file cotaining the code => httpserver.py
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#### To run main file with restart,start, quit functionality running in SEPARATE window
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bash master.sh
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#### To run main file with restart,start, quit functionality running in SAME window
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python3 master.py port_number
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#### To Test the program Run
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first replace all getpath variable values with your local paths.
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I didn't uploadded my test files to keep this project lightweight.
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`python3 testing/autoTest.py 5562`
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## HTTP-Web-Server
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This is the project based on http protocol that has been used in day to day life. All dimensions are considered according to rfc 2616
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It has following features:-
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HTTP: GET, POST, PUT, HEAD, DELETE, Cookies, Headers, non-persistent connections, Multiple clients at the same time
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(with a sepearate program to test this), logging with levels of logging, handling file permissions; Server configuration
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config file with DocumentRoot, log file name, max simulateneous connections ; way to stop and restart the server;
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It is developed using socket programming and very basic level of python.
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Project Developer has only focused on the quality of the server and not the features of the python language.
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Those having beginner level of knowledge about socket Programming and Python language are requested to see and understand
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the code as the developer also has the beginner level of knowledge in both
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### Here's PseudoCode I refered to while building HTTP server.
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```python
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webserver {
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open a socket, bind to port 90
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listen
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t = accept();
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create a thread for t
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thread {
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s -> socket to exchange data for this particular connection
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loop {
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d = recvdata();
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interprete the data in d; // headers are to be deciphered
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string processing, tokenizing, making sense of data
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loop {
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l = next line();
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t = ':' separated list of tokens from l;
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swithch(t) {
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"Host": do something;
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carry some action on the server side;
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change some headers in the output (sent to browser);
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"User-Agent": do something;
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"GET":
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f = get the next part of "GET" // filename;
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open f;
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write HTTP headers into the socket;
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dump file f() into the socket;
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"if-modified-since":
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ht = get the 'time' given in header;
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ct = get current time;
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ft = get the time when file was modified;
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if(ft - ct < ht)
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just send headers in socket
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else
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send headers + file in socket;
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}
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}
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}
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}
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}
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```
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- Special Thanks to Abhijit Sir ( COEP CS Faculty)
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- RFC
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- Mozilla HTTP Docs
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- TutorialsPoint
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- Seniors and peers for helping me out throughout the project.
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# RUN CONFIG.PY TO CONFIGURE
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import os
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'''Max buffer size to accept from a client'''
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SIZE = 8192 # 8*1024 = 8MB
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'''Gets the Current Working directory (.)'''
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ROOT = os.getcwd()
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#dictionary to convert month to its decimal
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MONTH = { 'Jan': 1, 'Feb': 2, 'Mar': 3, 'Apr': 4, 'May': 5, 'Jun': 6,
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'Jul': 7, 'Aug': 8, 'Sep': 9, 'Oct': 10, 'Nov': 11, 'Dec': 12 }
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'''
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fav icon which is displayed in title bar of the browser is requested by client
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so we define the path of favicon.ico here
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'''
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favicon = '/images/favicon.ico'
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FAVICON = ROOT + favicon # to get absolute path
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'''
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only HTTP version no. 1.1 is supported for this server.
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It depends on the implementation of the dev but I am only supporting 1.1
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'''
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RUNNING_VERSION = '1.1'
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'''
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Number of Thread Requests handled by the server at one time
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'''
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MAX_REQUEST = 20
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'''
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Maximum URL length supported by the server at the time of establishing new connection
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'''
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MAX_URL = 250
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'''
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log file path so that we can write into it
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'''
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LOG = ROOT + '/server.log'
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w = open(LOG, "a") # using a mode so we can only append and not overrite etc bad stuff
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w.close()
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'''
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workfile.html has the response saved msg.
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It is not part of the Server program I am using it show client that it's response is saved
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'''
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WORKFILE = ROOT + '/workfile.html' # path
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'''
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this creates a basic html workfile
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'''
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w = open(WORKFILE, "w")
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d = '''<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Response Recieved</title>
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<body>
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<h1>Yeah We got the response!</h1>
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</br>
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<h1>Your Response was Saved Succesfully!</h1>
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</body>
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</html>'''
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w.write(d)
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w.close()
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'''
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All data entered by the client is stored here for checking Purpose.
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'''
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CSVFILE = ROOT + '/output.csv'
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w = open(CSVFILE, "a") # only appending not writing
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w.close()
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'''
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all the files which are deleted using DELETE are getting moved here.
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'''
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DELETE = ROOT + '/deleted'
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'''
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the /deleted folder mentioned above is created here.
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For the DELETE req purpose
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'''
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try:
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os.mkdir(DELETE)
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except:
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pass
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'''
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username and password for approval of delete request method
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'''
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USERNAME = 'http' # delete can only be done after checking Auth
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PASSWORD = 'sudo' # Keep this secret folks
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'''
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cookie details
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'''
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COOKIE = 'Set-Cookie: id=' # id will be given in the program
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MAXAGE = '; max-age=3600' # 3600 sec is 60min
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'''Following is the file formats supported by the server'''
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FORMAT = {
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".aac" : "audio/aac",
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".abw" : "application/x-abiword",
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".arc" : "application/x-freearc",
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".avi" : "video/x-msvideo",
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".azw" : "application/vnd.amazon.ebook",
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".bin" : "application/octet-stream",
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".bmp" : "image/bmp",
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".bz" : "application/x-bzip",
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".bz2" : "application/x-bzip2",
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".csh" : "application/x-csh",
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".css" : "text/css",
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".csv" : "text/csv",
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".doc" : "application/msword",
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".docx" : "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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".eot" : "application/vnd.ms-fontobject",
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".epub" : "application/epub+zip",
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".gz" : "application/gzip",
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".gif" : "image/gif",
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".htm" : "text/html",
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".html" : "text/html",
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".ico" : "image/vnd.microsoft.icon",
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".ics" : "text/calendar",
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".jar" : "application/java-archive",
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".jpeg" : "image/jpeg",
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".jpg" : "image/jpeg",
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".js" : "text/javascript",
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".json" : "application/json",
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".jsonld": "application/ld+json",
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".mid" : "audio/midi",
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" .midi": "audio/midi",
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".mjs" : "text/javascript",
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".mp3" : "audio.mpeg",
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".mpeg" : "video/mpeg",
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".mpkg" : "application/vnd.apple.installer+xml",
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".odp" : "application/vnd.oasis.opendocument.presentation",
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".ods" : "application/vnd.oasis.opendocument.spreadsheet",
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".oga" : "audio/ogg",
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".ogv" : "video/ogg",
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".ogx" : "application/ogg",
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".otf" : "font/otf",
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".png" : "image/png",
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".pdf" : "application/pdf",
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".php" : "appliction/php",
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".ppt" : "application/vnd.ms-powerpoint",
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".pptx" : "application/vnd.openxmlformats-officedocument.presentationml.presentation",
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".rar" : "application/x-rar-compressed",
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".rtf" : "application/rtf",
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".sh" : "application/x-sh",
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".svg" : "image/svg+xml",
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".swf" : "application/x-shockwave-flash",
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".tar" : "application/x-tar",
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".tif" : "image/tiff",
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" .tiff": "image/tiff",
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".ts" : "video/mp2t",
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".ttf" : "font/ttf",
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".txt" : "text/html",
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".vsd" : "application/vnd.visio",
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".wav" : "audio/wav",
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".weba" : "audio/webm",
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".webm" : "video/webm",
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".webp" : ".webp",
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".woff" : "font/woff",
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".woff2": "font/woff2",
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".xhtml": "application/xhtml+xml",
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".xls" : "application/vnd.ms-excel",
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".xlsx" : "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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".xml" : "application/xml",
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".xul" : "application/vnd.mozilla.xul+xml",
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".zip" : "application/zip",
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".3gp" : "video/3gpp",
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".3g2" : "video/3gpp2",
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".7z" : "application/x-7z-compressed",
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}
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'''Following is the file formats supported by the server'''
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FORMAT2 = {
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"audio/aac" : ".aac" ,
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"application/x-abiword" : ".abw" ,
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"application/x-freearc" : ".arc" ,
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"video/x-msvideo" : ".avi" ,
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"application/vnd.amazon.ebook" : ".azw" ,
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"application/octet-stream" : ".bin" ,
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"image/bmp" : ".bmp" ,
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"application/x-bzip" : ".bz" ,
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"application/x-bzip2" : ".bz2" ,
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"application/x-csh" : ".csh" ,
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"text/css" : ".css" ,
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"text/csv" : ".csv" ,
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"application/msword" : ".doc" ,
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"application/vnd.openxmlformats-officedocument.wordprocessingml.document":".docx" ,
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"application/vnd.ms-fontobject" : ".eot" ,
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"application/epub+zip" : ".epub" ,
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"application/gzip" : ".gz" ,
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"image/gif" : ".gif" ,
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"text/html" : ".html" ,
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"image/vnd.microsoft.icon" : ".ico" ,
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"text/calendar" : ".ics" ,
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"application/java-archive" : ".jar" ,
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"image/jpeg" : ".jpeg" ,
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"text/javascript" : ".js" ,
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"application/json" : ".json" ,
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"application/ld+json" : ".jsonld" ,
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"audio/midi" : ".mid" ,
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"audio.mpeg" : ".mp3" ,
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"video/mpeg" : ".mpeg" ,
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"application/vnd.apple.installer+xml":".mpkg" ,
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"application/vnd.oasis.opendocument.presentation" : ".odp" ,
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"application/vnd.oasis.opendocument.spreadsheet" : ".ods" ,
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"audio/ogg" : ".oga" ,
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"video/ogg" : ".ogv" ,
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"application/ogg" : ".ogx" ,
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"font/otf" : ".otf" ,
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"image/png" : ".png" ,
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"application/pdf" : ".pdf" ,
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"appliction/php" : ".php" ,
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"application/vnd.ms-powerpoint" : ".ppt" ,
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"application/vnd.openxmlformats-officedocument.presentationml.presentation":".pptx" ,
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"application/x-rar-compressed" : ".rar" ,
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"application/rtf" : ".rtf" ,
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"application/x-sh" : ".sh" ,
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"image/svg+xml" : ".svg" ,
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"application/x-shockwave-flash" : ".swf" ,
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"application/x-tar" : ".tar" ,
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"image/tiff" : ".tif" ,
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"video/mp2t" : ".ts" ,
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"font/ttf" : ".ttf" ,
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"application/vnd.visio" : ".vsd" ,
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"audio/wav" : ".wav" ,
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"audio/webm" : ".weba" ,
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"video/webm" : ".webm" ,
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".webp" : ".webp" ,
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"font/woff" : ".woff" ,
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"font/woff2" : ".woff2" ,
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"application/xhtml+xml" : ".xhtml" ,
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"application/vnd.ms-excel" : ".xls" ,
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"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet":".xlsx" ,
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"application/xml" : ".xml" ,
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"application/vnd.mozilla.xul+xml":".xul" ,
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"application/zip" : ".zip" ,
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"video/3gpp" : ".3gp" ,
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"video/3gpp2" : ".3g2" ,
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"application/x-7z-compressed" : ".7z" ,
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}
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'''Response status codes'''
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status_codes = {
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200 : "Ok",
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201 : "Created",
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202 : "Accepted",
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204 : "No Content",
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304 : "Not Modified",
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400 : "Bad Request",
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401 : "Unauthorized",
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403 : "Forbidden",
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404 : "Not Found",
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411 : "Length required",
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412 : "Precondition Failed",
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414 : "URI too long",
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415 : "Unsupported media Type",
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500 : "Internal Server Error",
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501 : "Not Implemented",
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503 : "Server Unavailable",
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505 : "HTTP version not supported",
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}
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'''Methods supported by the server'''
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methods = ["GET", "POST", "HEAD", "PUT", "DELETE", "TRACE", "OPTIONS"]
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<html>
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<head>
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<title>Hi there</title>
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</head>
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<body>
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<h1>This indidcates that your server is running! Congratulations!!</h1>
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<form method="POST">
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<label for="fname">First name:</label><br>
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<input type="text" id="fname" name="fname"><br>
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<label for="lname">Last name:</label><br>
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<input type="text" id="lname" name="lname">
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>

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