def cache_valid(cache_time):
last_time_str = web.ctx.env.get('HTTP_IF_MODIFIED_SINCE', '')
last_time = web.net.parsehttpdate(last_time_str)
now = datetime.now()
if last_time and last_time + timedelta(seconds=cache_time) > now:
web.notmodified()
return True
else:
web.lastmodified(now)
return False
def wrapped_f(*args):
last_time_str = web.ctx.env.get('HTTP_IF_MODIFIED_SINCE', '')
last_time = web.net.parsehttpdate(last_time_str)
now = datetime.datetime.now()
if last_time and last_time + datetime.timedelta(seconds = seconds) > now:
web.notmodified()
else:
web.lastmodified(now)
web.header('Cache-Control', 'max-age='+str(seconds))
yield f(*args)
def wrapped_f(*args):
last_time_str = web.ctx.env.get('HTTP_IF_MODIFIED_SINCE', '')
last_time = web.net.parsehttpdate(last_time_str)
now = datetime.datetime.now()
if last_time and\
last_time + datetime.timedelta(seconds = seconds) > now:
web.notmodified()
else:
web.lastmodified(now)
web.header('Cache-Control', 'max-age='+str(seconds))
yield f(*args)
def GET(self):
'''
render = web.template.render("templates")
return render.server()
'''
currenttime = int(time.time())
if currenttime%self.waittime == 0:
'''web.header("Content-type","image/x-png")'''
return serverImage.createImage()
else:
web.notmodified()
def cache_valid(path):
return False
last_time_str = web.ctx.env.get('HTTP_IF_MODIFIED_SINCE', '')
last_time = web.net.parsehttpdate(last_time_str)
if last_time:
mtime = os.path.getmtime(path)
if last_time < mtime:
web.notmodified()
return True
web.lastmodified(datetime.datetime.now())
return False
def cache_valid(self):
#return False
last_time_str = web.ctx.env.get('HTTP_IF_MODIFIED_SINCE', '')
last_time = web.net.parsehttpdate(last_time_str)
if last_time:
nowtick = int(time.time())
tick = time.mktime(last_time.timetuple())
nexttick = tick+(300-tick % 300)
#print "weiwei"+datetime.datetime.fromtimestamp(nexttick).strftime("%m-%d %H %M %S")
if nexttick > nowtick:
web.notmodified()
return True
web.lastmodified(datetime.datetime.now())
return False
def GET(self, theme, filename):
mime_type, encoding = mimetypes.guess_type(filename)
if not mime_type:
mime_type = 'application/octet-stream'
memcache_key = 'theme:%s:%s' % (theme, filename)
body = memcache.get(memcache_key)
if not body:
theme_file_query = ThemeFile.all().filter('theme_name =', theme)
theme_file_query.filter('filename =', filename)
theme_file_query.filter('filetype =', 'file')
f = theme_file_query.get()
if not f:
raise web.notfound()
body = str(f.filecontent)
memcache.set(memcache_key, body)
etag = str(binascii.crc32(body))
self.SetCacheHeader(etag)
match = web.ctx.env.get('HTTP_IF_NONE_MATCH')
if match and match == etag:
raise web.notmodified()
web.header('Content-Type', mime_type)
return body
def GET(self, path):
_debug_toolbar_path = os.path.dirname(__file__)
abspath = os.path.join(_debug_toolbar_path, path)
stat_result = os.stat(abspath)
modified = datetime.datetime.fromtimestamp(stat_result[stat.ST_MTIME])
web.header("Last-Modified", modified)
mime_type, encoding = mimetypes.guess_type(abspath)
if mime_type:
web.header("Content-Type", mime_type)
cache_time = 86400 * 365 * 10
web.header("Expires", datetime.datetime.now() + \
datetime.timedelta(seconds=cache_time))
web.header("Cache-Control", "max-age=%s" % cache_time)
ims_value = web.ctx.env.get("HTTP_IF_MODIFIED_SINCE")
if ims_value is not None:
since = datetime.datetime.strptime(ims_value, '%Y-%m-%d %H:%M:%S')
if since >= modified:
raise web.notmodified()
with open(abspath, "rb") as f:
data = f.read()
hasher = hashlib.sha1()
hasher.update(data)
web.header("Etag", '"%s"' % hasher.hexdigest())
return data
def GET(self, path):
import mimetypes
import stat
import hashlib
abspath = os.path.join(settings.STATIC_DIR, path)
stat_result = os.stat(abspath)
modified = datetime.datetime.fromtimestamp(stat_result[stat.ST_MTIME])
web.header("Last-Modified",
modified.strftime('%a, %d %b %Y %H:%M:%S GMT'))
mime_type, encoding = mimetypes.guess_type(abspath)
if mime_type:
web.header("Content-Type", mime_type)
# 缓存10年
cache_time = 86400 * 365 * 10
web.header(
"Expires",
datetime.datetime.now() + datetime.timedelta(seconds=cache_time))
web.header("Cache-Control", "max-age=%s" % cache_time)
ims_value = web.ctx.env.get("HTTP_IF_MODIFIED_SINCE")
if ims_value is not None:
# ie的ims值不标准，所以导致不能正常产生缓存，这里解决
# IE的是Sat, 02 Feb 2013 14:44:34 GMT; length=4285
# 标准的为Sat, 02 Feb 2013 14:44:34 GMT
stupid = ims_value.find(';')
if stupid != -1:
ims_value = ims_value[:stupid]
since = datetime.datetime.strptime(ims_value,
'%a, %d %b %Y %H:%M:%S %Z')
if since >= modified:
# 如果是调试模式，那么强制加载所有非第三方js文件
if not (settings.DEBUG and abspath.endswith('.js')
and '3rd' not in abspath):
raise web.notmodified()
with open(abspath, "rb") as f:
data = f.read()
hasher = hashlib.sha1()
hasher.update(data)
web.header("Etag", '"%s"' % hasher.hexdigest())
# 合并js文件[第三方库不压缩]
if abspath.endswith('.js') and not '3rd' in abspath:
libs = re.findall(r'(.*?@import "([^"]+\.js)".*?)', data)
for line, lib in libs:
lib = os.path.join(settings.STATIC_DIR, lib)
data = data.replace(line, file(lib).read())
# mangle: 局部变量压缩
# mangle_toplevel: 整个文件压缩[即函数名也压缩]
#data = slimit.minify(data, mangle=True)
if not settings.DEBUG:
import slimit
data = slimit.minify(data,
mangle=True,
mangle_toplevel=True)
return data
def GET(self, path):
import mimetypes
import stat
import hashlib
abspath = os.path.join(settings.STATIC_DIR, path)
stat_result = os.stat(abspath)
modified = datetime.datetime.fromtimestamp(stat_result[stat.ST_MTIME])
web.header(
"Last-Modified", modified.strftime('%a, %d %b %Y %H:%M:%S GMT'))
mime_type, encoding = mimetypes.guess_type(abspath)
if mime_type:
web.header("Content-Type", mime_type)
# 缓存10年
cache_time = 86400 * 365 * 10
web.header("Expires", datetime.datetime.now() +
datetime.timedelta(seconds=cache_time))
web.header("Cache-Control", "max-age=%s" % cache_time)
ims_value = web.ctx.env.get("HTTP_IF_MODIFIED_SINCE")
if ims_value is not None:
# ie的ims值不标准，所以导致不能正常产生缓存，这里解决
# IE的是Sat, 02 Feb 2013 14:44:34 GMT; length=4285
# 标准的为Sat, 02 Feb 2013 14:44:34 GMT
stupid = ims_value.find(';')
if stupid != -1:
ims_value = ims_value[:stupid]
since = datetime.datetime.strptime(
ims_value, '%a, %d %b %Y %H:%M:%S %Z')
if since >= modified:
# 如果是调试模式，那么强制加载所有非第三方js文件
if not (settings.DEBUG and
abspath.endswith('.js') and '3rd' not in abspath):
raise web.notmodified()
with open(abspath, "rb") as f:
data = f.read()
hasher = hashlib.sha1()
hasher.update(data)
web.header("Etag", '"%s"' % hasher.hexdigest())
# 合并js文件[第三方库不压缩]
if abspath.endswith('.js') and not '3rd' in abspath:
libs = re.findall(r'(.*?@import "([^"]+\.js)".*?)', data)
for line, lib in libs:
lib = os.path.join(settings.STATIC_DIR, lib)
data = data.replace(line, file(lib).read())
# mangle: 局部变量压缩
# mangle_toplevel: 整个文件压缩[即函数名也压缩]
#data = slimit.minify(data, mangle=True)
if not settings.DEBUG:
import slimit
data = slimit.minify(
data, mangle=True, mangle_toplevel=True)
return data
def GET(self, category, key, value, size):
i = web.input(default="true")
key = key.lower()
def notfound():
if config.default_image and i.default.lower(
) != "false" and not i.default.startswith('http://'):
return read_file(config.default_image)
elif i.default.startswith('http://'):
raise web.seeother(i.default)
else:
raise web.notfound("")
def redirect(id):
size_part = size and ("-" + size) or ""
url = "/%s/id/%s%s.jpg" % (category, id, size_part)
query = web.ctx.env.get('QUERY_STRING')
if query:
url += '?' + query
raise web.found(url)
if key == 'isbn':
value = value.replace("-", "").strip() # strip hyphens from ISBN
# Disabling ratelimit as iptables is taking care of botnets.
#value = self.ratelimit_query(category, key, value)
value = self.query(category, key, value)
elif key != 'id':
value = self.query(category, key, value)
d = value and db.details(value)
if not d:
return notfound()
# set cache-for-ever headers only when requested with ID
if key == 'id':
etag = "%s-%s" % (d.id, size.lower())
if not web.modified(trim_microsecond(d.created), etag=etag):
raise web.notmodified()
web.header('Cache-Control', 'public')
web.expires(
100 * 365 * 24 *
3600) # this image is not going to expire in next 100 years.
else:
web.header('Cache-Control', 'public')
web.expires(
10 * 60
) # Allow the client to cache the image for 10 mins to avoid further requests
web.header('Content-Type', 'image/jpeg')
try:
return read_image(d, size)
except IOError:
raise web.notfound()
def redirect(self, url, status=303):
if status == 302:
return web.found(url)
elif status == 303:
return web.seeother(url)
elif status == 304:
return web.notmodified(url)
elif status == 306:
return web.tempredirect(url)
else:
return web.seeother(url)
def redirect(self, url, status=303):
if status == 302:
return web.found(url)
elif status == 303:
return web.seeother(url)
elif status == 304:
return web.notmodified(url)
elif status == 306:
return web.tempredirect(url)
else:
return web.seeother(url)
def wrapper(*args, **kwds):
rsp_data = func(*args, **kwds)
etag = '"%s"' % md5(rsp_data.encode('utf-8')).hexdigest()
#格式参见：<http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26>
n = set([x.strip().lstrip('W/') for x in web.ctx.env.get('HTTP_IF_NONE_MATCH', '').split(',')])
if etag in n:
raise web.notmodified()
else:
web.header('ETag', etag)
web.header('Cache-Control', 'no-cache')
return rsp_data
def GET(self, path, filename):
try:
etag = str(
os.path.getmtime(dirname + 'files/' + path + '/' + filename))
last_modified = datetime.datetime.fromtimestamp(
os.path.getmtime(dirname + 'files/' + path + '/' + filename))
if web.modified(last_modified, etag):
f = open(dirname + 'files/' + path + '/' + filename, 'rb')
web.header('Content-type', mimetypes.guess_type(filename)[0])
return f.read()
else:
return web.notmodified()
except (FileNotFoundError, OSError):
return web.notfound()
def wrapper(*args, **kwds):
rsp_data = func(*args, **kwds)
if type(rsp_data) is unicode:
etag = '"%s"' % md5(rsp_data.encode('utf-8', 'ignore')).hexdigest()
else:
etag = '"%s"' % md5(rsp_data).hexdigest()
#格式参见：<http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.26>
n = set([x.strip().lstrip('W/') for x in web.ctx.env.get('HTTP_IF_NONE_MATCH', '').split(',')])
if etag in n:
raise web.notmodified()
else:
web.header('ETag', etag)
web.header('Cache-Control', 'no-cache')
return rsp_data
def GET(self, category, key, value, size):
i = web.input(default="true")
key = key.lower()
def notfound():
if config.default_image and i.default.lower() != "false" and not i.default.startswith('http://'):
return read_file(config.default_image)
elif i.default.startswith('http://'):
raise web.seeother(i.default)
else:
raise web.notfound("")
def redirect(id):
size_part = size and ("-" + size) or ""
url = "/%s/id/%s%s.jpg" % (category, id, size_part)
query = web.ctx.env.get('QUERY_STRING')
if query:
url += '?' + query
raise web.found(url)
if key == 'isbn':
value = value.replace("-", "").strip() # strip hyphens from ISBN
# Disabling ratelimit as iptables is taking care of botnets.
#value = self.ratelimit_query(category, key, value)
value = self.query(category, key, value)
elif key != 'id':
value = self.query(category, key, value)
d = value and self.get_details(value, size.lower())
if not d:
return notfound()
# set cache-for-ever headers only when requested with ID
if key == 'id':
etag = "%s-%s" % (d.id, size.lower())
if not web.modified(trim_microsecond(d.created), etag=etag):
raise web.notmodified()
web.header('Cache-Control', 'public')
web.expires(100 * 365 * 24 * 3600) # this image is not going to expire in next 100 years.
else:
web.header('Cache-Control', 'public')
web.expires(10*60) # Allow the client to cache the image for 10 mins to avoid further requests
web.header('Content-Type', 'image/jpeg')
try:
return read_image(d, size)
except IOError:
raise web.notfound()
def GET(self):
"""
Port of evercookie php simple cache code.
"""
try:
web.header("Content-Type", "image/png")
web.header("Last-Modified", "Wed, 30 Jun 2010 21:36:48 GMT")
web.header("Expires", "Tue, 31 Dec 2030 23:30:45 GMT")
web.header("Cache-Control", "private, max-age=630720000")
return web.cookies().evercookie_cache
# no cookie
except:
web.header("Content-Type", "image/png")
raise web.notmodified()
def GET(self, name):
import binascii
theme = Theme.get_by_key_name(name)
screenshot = str(theme.screenshot)
etag = str(binascii.crc32(screenshot))
match = web.ctx.env.get('HTTP_IF_NONE_MATCH')
if match and match == etag:
raise web.notmodified()
web.header('ETag', etag)
web.header('Content-Type', 'image/png')
return screenshot
def GET(self, path):
import mimetypes
import stat
import hashlib
import os
import settings
import datetime
abspath = os.path.join(settings.STATIC_DIR, path)
stat_result = os.stat(abspath)
modified = datetime.datetime.fromtimestamp(stat_result[stat.ST_MTIME])
web.header(
"Last-Modified", modified.strftime('%a, %d %b %Y %H:%M:%S GMT'))
mime_type, encoding = mimetypes.guess_type(abspath)
if mime_type:
web.header("Content-Type", mime_type)
# 缓存1年
cache_time = 86400 * 365 * 1
web.header("Expires", datetime.datetime.now() +
datetime.timedelta(seconds=cache_time))
web.header("Cache-Control", "max-age=%s" % cache_time)
ims_value = web.ctx.env.get("HTTP_IF_MODIFIED_SINCE")
if ims_value is not None:
# ie的ims值不标准，所以导致不能正常产生缓存，这里解决
# IE的是Sat, 02 Feb 2013 14:44:34 GMT; length=4285
# 标准的为Sat, 02 Feb 2013 14:44:34 GMT
stupid = ims_value.find(';')
if stupid != -1:
ims_value = ims_value[:stupid]
since = datetime.datetime.strptime(
ims_value, '%a, %d %b %Y %H:%M:%S %Z')
if since >= modified:
# 如果是调试模式，那么强制加载所有非第三方js文件
if not (settings.DEBUG and
abspath.endswith('.js') and '3rd' not in abspath):
raise web.notmodified()
with open(abspath, "rb") as f:
data = f.read()
hasher = hashlib.sha1()
hasher.update(data)
web.header("Etag", '"%s"' % hasher.hexdigest())
if settings.GZIP_STATIC_FILE:
data = gzipData(data)
return data
def GET(self, key=''):
etag = get_header('HTTP_IF_NONE_MATCH')
if key in self.kvdb:
if etag == key:
raise web.notmodified()
else:
attrs = self.kvdb[key]
if not 'viewcount' in attrs:
attrs['viewcount'] = 0
attrs['viewcount'] = attrs['viewcount']+1
self.kvdb[key] = attrs
web.header('View-Count', attrs['viewcount'])
web.header('Content-Type', attrs['Content-Type'])
web.header('ETag', key)
web.header('Content-Disposition', 'filename="%s"' % attrs['filename'])
return self.kvdbval[key]
else:
return 'no thing'
def GET(self, category, key, value, size):
i = web.input(default="true")
key = key.lower()
def notfound():
if config.default_image and i.default.lower() != "false" and not i.default.startswith('http://'):
return read_file(config.default_image)
elif i.default.startswith('http://'):
raise web.seeother(i.default)
else:
raise web.notfound("")
def redirect(id):
size_part = size and ("-" + size) or ""
url = "/%s/id/%s%s.jpg" % (category, id, size_part)
query = web.ctx.env.get('QUERY_STRING')
if query:
url += '?' + query
raise web.found(url)
if key != 'id':
value = _query(category, key, value)
if value is None:
return notfound()
else:
return redirect(value)
else:
d = db.details(value)
if not d:
return notfound()
etag = "%s-%s" % (d.id, size.lower())
if not web.modified(trim_microsecond(d.created), etag=etag):
raise web.notmodified()
web.header('Cache-Control', 'public')
web.expires(100 * 365 * 24 * 3600) # this image is not going to expire in next 100 years.
web.header('Content-Type', 'image/jpeg')
try:
return read_image(d, size)
except IOError:
raise web.notfound()
def GET(self, category, key, value, size):
i = web.input(default="true")
key = key.lower()
d = _query(category, key, value)
if d:
if key == 'id':
etag = "%s-%s" % (d.id, size.lower())
if not web.modified(trim_microsecond(d.created), etag=etag):
raise web.notmodified()
web.header('Cache-Control', 'public')
web.expires(100 * 365 * 24 * 3600) # this image is not going to expire in next 100 years.
web.header('Content-Type', 'image/jpeg')
return read_image(d, size)
elif config.default_image and i.default.lower() != "false" and not i.default.startswith('http://'):
return read_file(config.default_image)
elif i.default.startswith('http://'):
raise web.seeother(i.default)
else:
raise web.notfound("")
def static_file_handler(static_dir, path):
'''静态文件改变了就重新加载，否则读取缓存'''
import mimetypes
import stat
import hashlib
abspath = os.path.join(static_dir, path)
stat_result = os.stat(abspath)
modified = datetime.datetime.fromtimestamp(stat_result[stat.ST_MTIME])
web.header(
"Last-Modified", modified.strftime('%a, %d %b %Y %H:%M:%S GMT'))
mime_type, encoding = mimetypes.guess_type(abspath)
if mime_type:
web.header("Content-Type", mime_type)
# 缓存N年
N = .5
cache_time = 86400 * 365 * N
web.header("Expires", datetime.datetime.now() +
datetime.timedelta(seconds=cache_time))
web.header("Cache-Control", "max-age=%s" % cache_time)
ims_value = web.ctx.env.get("HTTP_IF_MODIFIED_SINCE")
if ims_value is not None:
# ie的ims值不标准，所以导致不能正常产生缓存，这里解决
# IE的是Sat, 02 Feb 2013 14:44:34 GMT; length=4285
# 标准的为Sat, 02 Feb 2013 14:44:34 GMT
ims_value = ims_value.split(';')[0]
since = datetime.datetime.strptime(
ims_value, '%a, %d %b %Y %H:%M:%S %Z')
if since >= modified:
raise web.notmodified()
with open(abspath, "rb") as f:
data = f.read()
hasher = hashlib.sha1()
hasher.update(data)
web.header("Etag", '"%s"' % hasher.hexdigest())
return data
def GET(self):
"""
Port of evercookie php png code.
"""
try:
ec_png = web.cookies().evercookie_png
rgb = tuple([ord(x) for x in ec_png])
i = Image.new("RGB", (200, 1))
px = i.load()
px[0, 0] = rgb
sio = StringIO.StringIO()
i.save(sio, "PNG")
web.header("Content-Type", "image/png")
web.header("Last-Modified", "Wed, 30 Jun 2010 21:36:48 GMT")
web.header("Expires", "Tue, 31 Dec 2030 23:30:45 GMT")
web.header("Cache-Control", "private, max-age=630720000")
return sio.getvalue()
except Exception as e:
# no cookie found, force a read from the cache
raise web.notmodified()
def GET(self, category, key, value, size):
i = web.input(default="true")
key = key.lower()
def is_valid_url(url):
return url.startswith("http://") or url.startswith("https://")
def notfound():
if key in ["id", "olid"] and config.get("upstream_base_url"):
# this is only used in development
base = web.rstrips(config.upstream_base_url, "/")
raise web.redirect(base + web.ctx.fullpath)
elif config.default_image and i.default.lower() != "false" and not is_valid_url(i.default):
return read_file(config.default_image)
elif is_valid_url(i.default):
raise web.seeother(i.default)
else:
raise web.notfound("")
def redirect(id):
size_part = size and ("-" + size) or ""
url = "/%s/id/%s%s.jpg" % (category, id, size_part)
query = web.ctx.env.get('QUERY_STRING')
if query:
url += '?' + query
raise web.found(url)
if key == 'isbn':
value = value.replace("-", "").strip() # strip hyphens from ISBN
# Disabling ratelimit as iptables is taking care of botnets.
#value = self.ratelimit_query(category, key, value)
value = self.query(category, key, value)
# Redirect isbn requests to archive.org.
# This will heavily reduce the load on coverstore server.
# The max_coveritem_index config parameter specifies the latest
# olcovers items uploaded to archive.org.
if value and self.is_cover_in_cluster(value):
url = zipview_url_from_id(int(value), size)
raise web.found(url)
elif key == 'ia':
url = self.get_ia_cover_url(value, size)
if url:
raise web.found(url)
else:
value = None # notfound or redirect to default. handled later.
elif key != 'id':
value = self.query(category, key, value)
if value and safeint(value) in config.blocked_covers:
raise web.notfound()
# redirect to archive.org cluster for large size and original images whenever possible
if value and (size == "L" or size == "") and self.is_cover_in_cluster(value):
url = zipview_url_from_id(int(value), size)
raise web.found(url)
d = value and self.get_details(value, size.lower())
if not d:
return notfound()
# set cache-for-ever headers only when requested with ID
if key == 'id':
etag = "%s-%s" % (d.id, size.lower())
if not web.modified(trim_microsecond(d.created), etag=etag):
raise web.notmodified()
web.header('Cache-Control', 'public')
web.expires(100 * 365 * 24 * 3600) # this image is not going to expire in next 100 years.
else:
web.header('Cache-Control', 'public')
web.expires(10*60) # Allow the client to cache the image for 10 mins to avoid further requests
web.header('Content-Type', 'image/jpeg')
try:
return read_image(d, size)
except IOError:
raise web.notfound()
