RS Python Downloader

from urllib.request import *
import math
import sys
import time
import os,traceback
dl_starttime = time.clock()
timeout = 60
def getDLink(link = '') :
    link = link.split("|")
    #u = urlopen(url)
    #s = u.readall()
    url = "http://api.rapidshare.com/cgi-bin/rsapi.cgi?sub=download&fileid=" + link[2] + "&filename=" + link[3]
    #print(url)
    try:
        u = urlopen(url,None,timeout)
        s = u.readall()
        print("Rapidshare-Responsed:\n\n",s,"\n\n")
        if 'ERROR' in str(s):
            raise NameError("Rapidshare responsed an Error :(")
        s = str(s).split(":")
        s = s[1]
        s = s.split(",")
        url = "http://" + s[0] + "/cgi-bin/rsapi.cgi?sub=download&fileid=" + link[2] + "&filename=" + link[3] + "&dlauth=" + s[1]
        retval = [url,link[3]]
        return retval
    except URLError:
        print("URLError exception caught:\n\n",sys.exc_info(),"\n\n")
        pass

def download(url='',filename=''):
    u = urlopen(url,None,timeout)
    meta = u.info()
    file_size = int(meta.get('Content-Length'))
    if os.path.exists(filename):
        localfile_size = os.path.getsize(filename)
    else:
        localfile_size = 0
    print("file_size:",file_size," localfile_size:",localfile_size)
    if localfile_size < file_size:
        f = open(filename,'wb')
        print("Downloading: " + filename + " Bytes:" + str(file_size))
        file_size_dl = 0
        block_sz = 32768
        while True:
            buffer = u.read(block_sz)
            if not buffer:
                break

            file_size_dl += len(buffer)
            f.write(buffer)
            p = file_size_dl * 100.0 /file_size
            d = file_size_dl/1024/1024
            progressbar(p,d)
            #status = r"%2.2f MB [%3.3f%%]" % (file_size_dl/1024/1024, file_size_dl * 100. / file_size)
            #status = status + chr(8)*(len(status)+1)
            #print(status)
        f.close()
    else:
        print("Skipped file: ",filename)


def progressbar(percent,downloaded):
    width = 60
    mark = '#'
    marks = math.floor(width * (percent /100.0))
    spaces = math.floor(width - marks)
    loader = '[' + (mark * int(marks)) + (' ' * int(spaces)) + ']'
    eltime = getelapsedtime(dl_starttime)
    sys.stdout.write("%s %2.2f%% (%2.2f MB) %2d h %2d min %2d sec\r" % (loader, percent,downloaded,eltime[0],eltime[1],eltime[2]))
    if percent >= 100:

        sys.stdout.write("\n")

    sys.stdout.flush()


def getelapsedtime(starttime):
    now = time.clock()
    delta = int(now-starttime)
    hr = math.floor(delta / 3600)
    min = math.floor((delta % 3600) / 60)
    sec = ((delta % 3600) % 60)
    eltime = [hr,min,sec]
    return eltime

def validatefilesizes():
    filenames = []
    fin = True
    for file in links:
        filename = file.split("|")[3]
        filenames.append([filename,file])
    for file in filenames:
        print(file)
        dlink = getDLink(file[1])[0]
        u = urlopen(dlink,None,timeout)
        meta = u.info()
        localsize = os.path.getsize(file[0])
        if localsize < int(meta.get('Content-Length')):
            #dlink = getDLink(file[1])
            #download(dlink,file[0])
            fin = False
    return fin
#ein Array aus Links =)
links = []


def iterate():
    for file in links:
        try:
            dl_starttime = time.clock()
            arguments = getDLink(file)
            download(arguments[0],arguments[1])
        except:
            print("Ein Fehler trat auf:\n\n",file," ",sys.exc_info(),"\n\n")
            traceback.print_exc(file=sys.stdout)
            print("\n\n")


def main():

    dl_starttime = time.clock()
    try:
        iterate()
        while not validatefilesizes():
            try:
                iterate()
                validatefilesizes()
            except:
                print("Ein Fehler trat auf:\n\n",sys.exc_info(),"\n\n")
    except:
        print("Ein Fehler trat auf:\n\n",sys.exc_info(),"\n\n")

if __name__ == "__main__":
    main()