def loadURLFast(url=None, cache_dir=CACHE_DIR, aged=AGED, timeout=TIMEOUT):
req_dig = request_digest(url)
req_dig_key = cache_dir + req_dig
req_dig_md_key = file_storage.metadata(req_dig_key)
aged_in_cache = False
in_cache = False
now = datetime.datetime.now()
try:
md = file_storage.getItem(req_dig_md_key)
in_cache = True
if aged is not None and \
now - md["datetime"] > datetime.timedelta(seconds=aged):
aged_in_cache = True
except:
pass
if in_cache and (config.offline_mode or not aged_in_cache):
try:
try:
headers = dict(file_storage.getItem(req_dig_md_key)["headers"])
except:
headers = {'content-type': "application/octet-stream"}
return headers, file_storage.getItem(req_dig_key, mode="file")
except:
file_storage.delItem(req_dig_md_key)
in_cache = False
headers, fh = doLoadURLFast(url, cache_dir=cache_dir, aged=aged, timeout=timeout)
try:
headers = dict(file_storage.getItem(req_dig_md_key)["headers"])
except:
headers = {'content-type': "application/octet-stream"}
return headers, fh
def downloadPreview(file_key, max_x=100, max_y=100):
if Image is None:
return
try:
metadata = file_storage.getItem(file_storage.metadata(file_key))
input_file = file_storage.getItem(file_key, mode="file")
output_file = tempfile.TemporaryFile()
ratio = 1
angle = 0
ct = metadata['Content-Type']
pre_ct = "image/jpeg"
if ct.startswith("image/"):
try:
_preview(input_file, output_file, max_x, max_y, ratio, angle)
except:
pre_ct, output_file = preview_icon(ct)
else:
pre_ct, output_file = preview_icon(ct)
last_modified = metadata["Last-Modified"]
except:
pre_ct, output_file = preview_icon('broken')
last_modified = rfc822.formatdate(time.time()) #!!!?
output_file.seek(0L, 2)
preview_length = output_file.tell()
output_file.seek(0L)
fc = output_file.read()
web.header('Content-Type', pre_ct)
web.header('Content-Length', str(preview_length))
web.header('Last-Modified', last_modified)
return fc
def download_captcha(file_key):
if not goodkey_re.match(file_key):
return
metadata = file_storage.getItem(file_storage.metadata(file_key))
web.header('Content-Type', metadata["Content-Type"])
web.header('Content-Length', str(metadata["Content-Length"]))
web.header('Last-Modified', metadata["Last-Modified"])
return file_storage.getItem(file_key, mode="str")
def downloadMediaFile(file_key):
try:
metadata = file_storage.getItem(file_storage.metadata(file_key))
web.header('Content-Type', metadata["Content-Type"])
web.header('Content-Length', str(metadata["Content-Length"]))
web.header('Last-Modified', metadata["Last-Modified"])
return file_storage.getItem(file_key, mode="str")
except KeyError:
return downloadPreview(file_key) #??? !!!
def loadURL_2(url, cache_dir=CACHE_DIR, aged=AGED, timeout=TIMEOUT):
CMD = READ_FEED_COMMAND + " %s %s %s" % (cache_dir, aged, timeout)
child_stdin = os.popen(CMD, "w")
child_stdin.write(url)
child_stdin.close()
req_dig_key = cache_dir + request_digest(url)
return file_storage.getItem(req_dig_key, mode="file")
def doLoadURLFast(url, cache_dir=CACHE_DIR, aged=AGED, timeout=TIMEOUT):
headers, fh = _doRead(url)
req_dig_key = cache_dir + request_digest(url)
req_dig_md_key = file_storage.metadata(req_dig_key)
file_storage.setItem(req_dig_key, fh)
file_storage.setItem(req_dig_md_key, {"datetime": datetime.datetime.now(),
"headers": headers})
return headers, file_storage.getItem(req_dig_key, mode="file")
def get_session():
"""Get existing session (may return None) """
session_id = get_session_id()
if session_id is not None:
session_key = SESSION_DIR + session_id
try:
return file_storage.getItem(session_key, mode="pickle")
except:
return None
else:
return None
def loadParsedURL(url):
req_dig_key = CACHE_DIR + request_digest(url)
req_dig_md_key = file_storage.metadata(req_dig_key)
try:
md = file_storage.getItem(req_dig_md_key)
if datetime.datetime.now() - md["datetime"] \
<= datetime.timedelta(seconds=AGED):
return md["parsed"]
except StandardError: # misc errors
pass
return None
def needToReloadURL(url, cache_dir=CACHE_DIR, aged=AGED):
req_dig_key = cache_dir + request_digest(url)
req_dig_md_key = file_storage.metadata(req_dig_key)
try:
md = file_storage.getItem(req_dig_md_key)
if datetime.datetime.now() - md["datetime"] \
<= datetime.timedelta(seconds=aged):
return False
except StandardError: # misc errors
pass
return True
def get_session():
"""Get existing session (may return None) """
session_id = get_session_id()
if session_id is not None:
session_key = SESSION_DIR + session_id
try:
return file_storage.getItem(session_key, mode="pickle")
except:
return None
else:
return None
def loadURL(url, cache_dir=CACHE_DIR, aged=AGED, timeout=TIMEOUT):
#!!! new feature
cached_result = tryCachedURL(url, cache_dir=CACHE_DIR, aged=aged)
if cached_result is not None:
return cached_result
CMD = READ_FEED_COMMAND + " %s %s %s" % (cache_dir, aged, timeout)
child_stdin = os.popen(CMD, "w")
child_stdin.write(url)
child_stdin.close()
req_dig_key = cache_dir + request_digest(url)
return file_storage.getItem(req_dig_key, mode="file")
def check_captcha(file_key, user_word):
if not goodkey_re.match(file_key):
return "Invalid key format"
try:
metadata = file_storage.getItem(file_storage.metadata(file_key))
except:
return "No such thing"
try:
if time.time() - metadata["added"] > 180: # captcha is too old
return "Too old"
if user_word.strip() == metadata["secret"]:
return ""
finally:
drop_captcha(file_key)
return "Failed"
def getHeaders(url, cache_dir=CACHE_DIR):
req_dig_key = cache_dir + request_digest(url)
req_dig_md_key = file_storage.metadata(req_dig_key)
md = file_storage.getItem(req_dig_md_key)
return md["headers"]
def tryCachedURL(url, cache_dir=CACHE_DIR, aged=AGED):
if not needToReloadURL(url, cache_dir, aged):
req_dig_key = cache_dir + request_digest(url)
return file_storage.getItem(req_dig_key, mode="file")
return None
