text: #!/usr/bin/env python3
  import ctypes
  import inspect
  import json
  import os
  import random
  import requests
  import threading
  import time
  import traceback
  
  from cereal import log
  from common.api import Api
  from common.params import Params
  from selfdrive.hardware import HARDWARE
  from selfdrive.loggerd.xattr_cache import getxattr, setxattr
  from selfdrive.loggerd.config import ROOT
  from selfdrive.swaglog import cloudlog
  
  NetworkType = log.ThermalData.NetworkType
  UPLOAD_ATTR_NAME = 'user.upload'
  UPLOAD_ATTR_VALUE = b'1'
  
  fake_upload = os.getenv("FAKEUPLOAD") is not None
  
  
  def raise_on_thread(t, exctype):
    '''Raises an exception in the threads with id tid'''
    for ctid, tobj in threading._active.items():
      if tobj is t:
        tid = ctid
        break
    else:
      raise Exception("Could not find thread")
  
    if not inspect.isclass(exctype):
      raise TypeError("Only types can be raised (not instances)")
  
    res = ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid),
                                                     ctypes.py_object(exctype))
    if res == 0:
      raise ValueError("invalid thread id")
    elif res != 1:
      # "if it returns a number greater than one, you're in trouble,
      # and you should call it again with exc=NULL to revert the effect"
      ctypes.pythonapi.PyThreadState_SetAsyncExc(tid, 0)
      raise SystemError("PyThreadState_SetAsyncExc failed")
  
  def get_directory_sort(d):
    return list(map(lambda s: s.rjust(10, '0'), d.rsplit('--', 1)))
  
  def listdir_by_creation(d):
    try:
      paths = os.listdir(d)
      paths = sorted(paths, key=get_directory_sort)
      return paths
    except OSError:
      cloudlog.exception("listdir_by_creation failed")
      return list()
  
  def clear_locks(root):
    for logname in os.listdir(root):
      path = os.path.join(root, logname)
      try:
        for fname in os.listdir(path):
          if fname.endswith(".lock"):
            os.unlink(os.path.join(path, fname))
      except OSError:
        cloudlog.exception("clear_locks failed")
  
  def is_on_wifi():
    return HARDWARE.get_network_type() == NetworkType.wifi
  
  class Uploader():
    def __init__(self, dongle_id, root):
      self.dongle_id = dongle_id
      self.api = Api(dongle_id)
      self.root = root
  
      self.upload_thread = None
  
      self.last_resp = None
      self.last_exc = None
  
      self.immediate_priority = {"qlog.bz2": 0, "qcamera.ts": 1}
      self.high_priority = {"rlog.bz2": 0, "fcamera.hevc": 1, "dcamera.hevc": 2, "ecamera.hevc": 3}
  
    def get_upload_sort(self, name):
      if name in self.immediate_priority:
        return self.immediate_priority[name]
      if name in self.high_priority:
        return self.high_priority[name] + 100
      return 1000
  
    def gen_upload_files(self):
      if not os.path.isdir(self.root):
        return
      for logname in listdir_by_creation(self.root):
        path = os.path.join(self.root, logname)
        try:
          names = os.listdir(path)
        except OSError:
          continue
        if any(name.endswith(".lock") for name in names):
          continue
  
        for name in sorted(names, key=self.get_upload_sort):
          key = os.path.join(logname, name)
          fn = os.path.join(path, name)
          # skip files already uploaded
          try:
            is_uploaded = getxattr(fn, UPLOAD_ATTR_NAME)
          except OSError:
            cloudlog.event("uploader_getxattr_failed", exc=self.last_exc, key=key, fn=fn)
            is_uploaded = True  # deleter could have deleted
          if is_uploaded:
            continue
          yield (name, key, fn)
  
    def next_file_to_upload(self, with_raw):
      upload_files = list(self.gen_upload_files())
  
      # try to upload qlog files first
      for name, key, fn in upload_files:
        if name in self.immediate_priority:
          return (key, fn)
  
      if with_raw:
        # then upload the full log files, rear and front camera files
        for name, key, fn in upload_files:
          if name in self.high_priority:
            return (key, fn)
  
        # then upload other files
        for name, key, fn in upload_files:
          if not name.endswith('.lock') and not name.endswith(".tmp"):
            return (key, fn)
  
      return None
  
    def do_upload(self, key, fn):
      try:
        url_resp = self.api.get("v1.3/"+self.dongle_id+"/upload_url/", timeout=10, path=key, access_token=self.api.get_token())
        if url_resp.status_code == 412:
          self.last_resp = url_resp
          return
  
        url_resp_json = json.loads(url_resp.text)
        url = url_resp_json['url']
        headers = url_resp_json['headers']
        cloudlog.info("upload_url v1.3 %s %s", url, str(headers))
  
        if fake_upload:
          cloudlog.info("*** WARNING, THIS IS A FAKE UPLOAD TO %s ***" % url)
  
          class FakeResponse():
            def __init__(self):
              self.status_code = 200
  
          self.last_resp = FakeResponse()
        else:
          with open(fn, "rb") as f:
            self.last_resp = requests.put(url, data=f, headers=headers, timeout=10)
      except Exception as e:
        self.last_exc = (e, traceback.format_exc())
        raise
  
    def normal_upload(self, key, fn):
      self.last_resp = None
      self.last_exc = None
  
      try:
        self.do_upload(key, fn)
      except Exception:
        pass
  
      return self.last_resp
  
    def upload(self, key, fn):
      try:
        sz = os.path.getsize(fn)
      except OSError:
        cloudlog.exception("upload: getsize failed")
        return False
  
      cloudlog.event("upload", key=key, fn=fn, sz=sz)
  
      cloudlog.info("checking %r with size %r", key, sz)
  
      if sz == 0:
        try:
          # tag files of 0 size as uploaded
          setxattr(fn, UPLOAD_ATTR_NAME, UPLOAD_ATTR_VALUE)
        except OSError:
          cloudlog.event("uploader_setxattr_failed", exc=self.last_exc, key=key, fn=fn, sz=sz)
        success = True
      else:
        cloudlog.info("uploading %r", fn)
        stat = self.normal_upload(key, fn)
        if stat is not None and stat.status_code in (200, 201, 412):
          cloudlog.event("upload_success" if stat.status_code != 412 else "upload_ignored", key=key, fn=fn, sz=sz)
          try:
            # tag file as uploaded
            setxattr(fn, UPLOAD_ATTR_NAME, UPLOAD_ATTR_VALUE)
          except OSError:
            cloudlog.event("uploader_setxattr_failed", exc=self.last_exc, key=key, fn=fn, sz=sz)
          success = True
        else:
          cloudlog.event("upload_failed", stat=stat, exc=self.last_exc, key=key, fn=fn, sz=sz)
          success = False
  
      return success
  
  def uploader_fn(exit_event):
    cloudlog.info("uploader_fn")
  
    params = Params()
    dongle_id = params.get("DongleId").decode('utf8')
  
    if dongle_id is None:
      cloudlog.info("uploader missing dongle_id")
      raise Exception("uploader can't start without dongle id")
  
    uploader = Uploader(dongle_id, ROOT)
  
    backoff = 0.1
    counter = 0
    on_wifi = False
    while not exit_event.is_set():
      offroad = params.get("IsOffroad") == b'1'
      allow_raw_upload = (params.get("IsUploadRawEnabled") != b"0") and offroad
      if offroad and counter % 12 == 0:
        on_wifi = is_on_wifi()
      counter += 1
  
      d = uploader.next_file_to_upload(with_raw=allow_raw_upload and on_wifi and offroad)
      if d is None:  # Nothing to upload
        time.sleep(60 if offroad else 5)
        continue
  
      key, fn = d
  
      cloudlog.event("uploader_netcheck", is_on_wifi=on_wifi)
      cloudlog.info("to upload %r", d)
      success = uploader.upload(key, fn)
      if success:
        backoff = 0.1
      else:
        cloudlog.info("backoff %r", backoff)
        time.sleep(backoff + random.uniform(0, backoff))
        backoff = min(backoff*2, 120)
      cloudlog.info("upload done, success=%r", success)
  
  def main():
    uploader_fn(threading.Event())
  
  
  if __name__ == "__main__":
    main()
  