def valid_url(name):
    '''
    Validates a Firebase URL. A valid URL must exhibit:
    - Protocol must be HTTPS
    - Domain Must be firebaseio.com
    - firebasename can only contain:
          - hyphen, small and capital letters
    - firebasename can not have leading and trailing hyphens
    - childnames can not contain:
        - period, dollar sign, square brackets, pound
        - ASCII Control Chars from \x00 - \x1F and \x7F
    '''

    try:
        pattern = r'^https://([a-zA-Z0-9][a-zA-Z0-9\-]+[a-zA-Z0-9]).firebaseio.com(/[^\#\$\[\]\.\x00-\x1F\x7F]*)'
        result = re.search(pattern, name + '/').group()
        result = result[:len(result) - 1]
        if result == name:
            return name
        else:
            raise ValueError("InvalidURL")
    except:
        raise ValueError("InvalidURL")
def valid_url(name):
    '''
    Validates a Firebase URL. A valid URL must exhibit:
    - Protocol must be HTTPS
    - Domain Must be firebaseio.com
    - firebasename can only contain:
          - hyphen, small and capital letters
    - firebasename can not have leading and trailing hyphens
    - childnames can not contain:
        - period, dollar sign, square brackets, pound
        - ASCII Control Chars from \x00 - \x1F and \x7F
    '''

    try:
        pattern = r'^https://([a-zA-Z0-9][a-zA-Z0-9\-]+[a-zA-Z0-9]).firebaseio.com(/[^\#\$\[\]\.\x00-\x1F\x7F]*)'
        result = re.search(pattern, name + '/').group()
        result = result[:len(result) - 1]
        if result == name:
            return name
        else:
            raise ValueError("InvalidURL")
    except:
        raise ValueError("InvalidURL")
def valid_url ( name ) : try : pattern = r'^https://([a-zA-Z0-9][a-zA-Z0-9\-]+[a-zA-Z0-9]).firebaseio.com(/[^\#\$\[\]\.\x00-\x1F\x7F]*)' result = re . search ( pattern , name + '/' ) . group ( ) result = result [ : len ( result ) - 1 ] if result == name : return name else : raise ValueError ( "InvalidURL" ) except : raise ValueError ( "InvalidURL" )
Validates a Firebase URL. A valid URL must exhibit:
    - Protocol must be HTTPS
    - Domain Must be firebaseio.com
    - firebasename can only contain:
          - hyphen, small and capital letters
    - firebasename can not have leading and trailing hyphens
    - childnames can not contain:
        - period, dollar sign, square brackets, pound
        - ASCII Control Chars from \x00 - \x1F and \x7F
Validates a Firebase URL . A valid URL must exhibit : - Protocol must be HTTPS - Domain Must be firebaseio . com - firebasename can only contain : - hyphen small and capital letters - firebasename can not have leading and trailing hyphens - childnames can not contain : - period dollar sign square brackets pound - ASCII Control Chars from \ x00 - \ x1F and \ x7F