Example #1
0
    def final_status(self, upload, temp, final=False):
        end_time = time.time()
        start_time = self.st
        total_uploaded_b = 0
        total_downloaded_b = 0
        total_copied_b = 0

        total_uploaded_t = 0
        total_downloaded_t = 0
        total_copied_t = 0

        for item in self.up_complete:
            total_uploaded_t += item["timespan"]
            total_uploaded_b += item["size_uploaded"]

        for item in self.down_complete:
            total_downloaded_t += item["timespan"]
            total_downloaded_b += item["size_downloaded"]

        for item in self.copy_complete:
            total_copied_t += item["timespan"]
            total_copied_b += item["size_copied"]

        downspeed = utils.get_speed(total_downloaded_b, total_downloaded_t)
        copyspeed = utils.get_speed(total_copied_b, total_copied_t)
        upspeed = utils.get_speed(total_uploaded_b, total_uploaded_t)
        runspeed = utils.get_speed(total_downloaded_b, (end_time - start_time))
        uprunspeed = utils.get_speed(total_uploaded_b, (end_time - start_time))
        copyrunspeed = utils.get_speed(total_copied_b, (end_time - start_time))
        if final or total_downloaded_t > 0:
            log.info("Total download time: %s", utils.convert_time(total_downloaded_t))
        if upload and (final or total_uploaded_t):
            log.info("Total upload time: %s", utils.convert_time(total_uploaded_t))
        elif temp and (final or total_copied_t):
            log.info("Total copy time: %s", utils.convert_time(total_copied_t))

        log.info("Total run time: %s", utils.convert_time(end_time - start_time))

        if final or total_downloaded_b:
            log.info("Download speed: %s at %s", utils.convert_size(total_downloaded_b), downspeed)
        if upload and (final or total_uploaded_b):
            log.info("Upload speed: %s at %s", utils.convert_size(total_uploaded_b), upspeed)
        elif temp and (final or total_copied_b):
            log.info("Copy speed: %s at %s", utils.convert_size(total_copied_b), copyspeed)
        if final or total_downloaded_b:
            log.info("Overall download speed: %s at %s", utils.convert_size(total_downloaded_b), runspeed)
        if upload and (final or total_uploaded_b):
            log.info("Overall upload speed: %s at %s", utils.convert_size(total_uploaded_b), uprunspeed)
        elif temp and (final or total_copied_b):
            log.info("Overall copy speed: %s at %s", utils.convert_size(total_copied_b), copyrunspeed)
Example #2
0
def download(status, should_exit, session, results, command_args):
    log.debug("Starting up")
    while not should_exit.is_set():
        item = None
        try:
            item = status.down()
        except EmptyException:
            if status.queuers_active > 0 or status.queues > 0:
                continue
            else:
                log.debug("Nothing more to download. Shutting down")
                return
        if item is None:
            continue

        random.seed(item["filepath"])
        filename = item["filename"]
        size_bytes = item["filesize"]
        size_str = utils.convert_size(size_bytes)
        temp_dir = item["filedir"]
        temp_file = item["fullpath"]
        log.info("%s size %s", filename, size_str)
        timespan = 0

        if command_args.temp:
            temp_dir = command_args.temp
            temp_file = os.path.join(temp_dir, filename)

        apidownloaduri = "%smyfile.ext?access_token=%s&path=%s" % (BASE_URL, command_args.token, item["filepath"])

        if (not command_args.upload and not os.path.exists(item["filedir"])) or (command_args.temp and not os.path.exists(temp_dir)):
            cleanUpAfterError("Missing temp or destination parent directory", item, results)
            continue

        if command_args.temp:
            filehash = sha1("blob " + str(size_bytes) + "\0" + item["filepath"])
            tmpname = filehash.hexdigest()
            temp_file = os.path.join(command_args.temp, tmpname)
            item["temppath"] = temp_file

        log.debug("Downloading file to %s", temp_file)
        retriesleft = 10
        apiratecount = 1
        down_failed = True
        while retriesleft > 0 and not should_exit.is_set():
            sleeptime = random.randint(10, 70)
            if apiratecount > 5:
                apiratecount = 5
            try:
                mode = "wb"
                filecomplete = False
                seek = 0
                sizecopied = 0
                try:
                    seek = os.path.getsize(temp_file)
                    if seek > size_bytes:
                        seek = 0
                    elif seek == size_bytes:
                        log.info("Found temp. Nothing to download")
                        filecomplete = True
                    elif seek > 0:
                        sizecopied += seek
                        log.info("continuing download")
                        mode = "ab"
                except:
                    pass
                if not filecomplete:
                    req = session.get(apidownloaduri, stream=True, timeout=120, headers={'Range':"bytes=%s-" % seek})
                    req.raise_for_status()
                    with open(temp_file, mode) as tmpfile:
                        st = time.time()
                        cr = st
                        progress_time = st + 60
                        timespan = 0
                        chunk_size = 1024 * 1024
                        for chunk in req.iter_content(chunk_size=chunk_size):
                            cr = time.time()
                            if should_exit.is_set() or not chunk:
                                break
                            tmpfile.write(chunk)
                            sizecopied += len(chunk)
                            if command_args.progress and progress_time < cr:
                                progress_time = cr + 60
                                speed = utils.get_speed(sizecopied-seek, (cr-st))
                                sizecopied_str = utils.convert_size(sizecopied)
                                time_left = utils.get_remaining_time(sizecopied-seek, size_bytes-sizecopied, (cr-st))
                                log.info(filename)
                                log.info("Downloaded %s of %s at %s. %s left", sizecopied_str, size_str, speed, time_left)
                        
                        if should_exit.is_set():
                            log.info("Stopping download")
                        elif sizecopied != size_bytes:
                            raise SizeMismatchError("Download size mismatch downloaded %s expected %s" % (sizecopied, size_bytes))
                        else:
                            timespan = (cr-st)

            except (requests.exceptions.Timeout, requests.exceptions.ConnectionError, requests.exceptions.HTTPError, requests.exceptions.RequestException):
                retriesleft -= 1
                if req.status_code == 429:
                    apiratecount += 1
                    retriesleft += 1
                    log.warn("API rate limit reached. Will retry")
                else:
                    log.exception("Network error %s. Will retry %s more times", req.status_code, retriesleft)
                if retriesleft > 0:
                    time.sleep(10 * apiratecount)
                else:
                    log.error("Error downloading %s", filename)
                    cleanUpAfterError("Maximum retries reached", item, results)
            except SizeMismatchError:
                retriesleft -= 1
                log.exception("%s File size mismatch. Will retry %s more times", filename, retriesleft)
                if retriesleft > 0:
                    time.sleep(sleeptime)
                else:
                    cleanUpAfterError("Error downloading %s Maximum retries reached" % filename, item, results)
            except IOError as e:
                if e.errno == errno.ENOSPC:
                    if status.up_active > 0 or status.copy_active > 0:
                        log.warn("Out of space. Waiting %s secs", sleeptime)
                        time.sleep(sleeptime)
                    else:
                        log.critical("No space left on target or temp disk. Exiting")
                        should_exit.set()
                else:
                    retriesleft -= 1
                    if retriesleft > 0:
                        log.exception("Error downloading %s. Will retry %s more times", filename, retriesleft)
                        time.sleep(sleeptime)
                    else:
                        cleanUpAfterError("An unknown error occurred", item, results)
            except:
                retriesleft -= 1
                if retriesleft > 0:
                    log.exception("Error downloading %s. Will retry %s more times", filename, retriesleft)
                    time.sleep(sleeptime)
                else:
                    cleanUpAfterError("An unknown error occurred", item, results)
            else:
                if not should_exit.is_set():
                    down_failed = False
                    retriesleft = 0
                    if timespan <= 0:
                        timespan = 1
                    status.down({
                        "timespan": timespan,
                        "size_downloaded": sizecopied,
                        "temppath": temp_file
                    })
                    if command_args.upload:
                        log.info("Finished download %s in %s", filename, utils.convert_time(timespan))
                        log.debug("Adding to upload queue")
                        status.queue_up(item)
                    elif command_args.temp:
                        log.info("Finished download %s in %s", filename, utils.convert_time(timespan))
                        log.debug("Adding to move queue")
                        status.queue_copy(item)
                    else:
                        log.info("Finished download %s in %s", item["fullpath"], utils.convert_time(timespan))
                        results.writeSuccess(item["fullpath"], item["filepath"])
                    if command_args.progress:
                        speed = utils.get_speed(sizecopied-seek, timespan)
                        log.info("%s downloaded at %s", size_str, speed)
                else:
                    cleanUpAfterError("Download stopped", item, results)

        if down_failed:
            status.down_fail(item)
        log.debug("End of thread")

    log.debug("Shutting down")