httpParser.py

'''
    File name: httpParser.py
    Author: Noyel Seth
    Email: noyelseth@gmail.com
    MicroPython Version: 3.4
'''

class HttpParser:
    """
    This is a class for parse HTTP response, coming from ESP8266 after complete the Post/Get operation
    Using this class, you parse the HTTP Post/Get operation's response and get HTTP status code, Response.
    """
    
    __httpErrorCode=None
    __httpHeader=None
    __httpResponseLength=None
    __httpResponse=None
    
    def __init__(self):
        """
        The constaructor for HttpParser class
        """
        self.__httpErrCode=None
        self.__httpHeader=None
        self.__httpResponseLength=None
        self.__httpResponse=None
        
    def parseHTTP(self, httpRes):
        """
        This funtion use to parse the HTTP response and return back the HTTP status code
        
        Return:
            HTTP status code.
        """
        #print(">>>>",httpRes)
        if(httpRes != None):
            retParseResponse=str(httpRes).partition("+IPD,")[2]
            #print(">>>>>>>>>>>>>>>>>",retParseResponse)
            retParseResponse=retParseResponse.split(r"\r\n\r\n");
            #print(">>>>>>>>>>>>>>>>>",retParseResponse[0])
            self.__httpResponse = retParseResponse[1]
            #print(">>>>>>>>>>>>>>>>>???",retParseResponse[1])  
            self.__httpHeader=str(retParseResponse[0]).partition(":")[2]
            #print("--",self.__httpHeader)
            for code in str(self.__httpHeader.partition(r"\r\n")[0]).split():
                if code.isdigit():
                    self.__httpErrCode=int(code)
                    
            if(self.__httpErrCode != 200):
                self.__httpResponse=None
                
            return self.__httpErrCode
        else:
            return 0
    
    def getHTTPErrCode(self):
        """
        This funtion use to get latest parsed HTTP response's status code
        
        Return:
            HTTP status code.
        """
        return self.__httpErrCode
    
    def getHTTPResponse(self):
        """
        This funtion use to get latest parsed HTTP response's response massage.
        
        Return:
            HTTP response message.
        """
        return self.__httpResponse
    
    def __del__(self):
        """
        The distaructor for HttpParser class
        """
        pass