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maloja/maloja/server.py

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#!/usr/bin/env python
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import os
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from .__init__ import DATA_DIR
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os.chdir(DATA_DIR)
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# server stuff
from bottle import Bottle, route, get, post, error, run, template, static_file, request, response, FormsDict, redirect, template, HTTPResponse, BaseRequest
import waitress
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# monkey patching
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from . import monkey
# rest of the project
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from . import database
from . import htmlmodules
from . import htmlgenerators
from . import malojatime
from . import utilities
from .utilities import resolveImage
from .urihandler import uri_to_internal, remove_identical
from . import urihandler
# doreah toolkit
from doreah import settings
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from doreah.logging import log
from doreah.timing import Clock
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from doreah.pyhp import file as pyhpfile
# technical
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#from importlib.machinery import SourceFileLoader
import importlib
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import _thread
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import sys
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import signal
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import os
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import setproctitle
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import pkg_resources
# url handling
import urllib
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#settings.config(files=["settings/default.ini","settings/settings.ini"])
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#settings.update("settings/default.ini","settings/settings.ini")
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MAIN_PORT = settings.get_settings("WEB_PORT")
HOST = settings.get_settings("HOST")
THREADS = 12
BaseRequest.MEMFILE_MAX = 15 * 1024 * 1024
WEBFOLDER = pkg_resources.resource_filename(__name__,"web")
STATICFOLDER = pkg_resources.resource_filename(__name__,"static")
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webserver = Bottle()
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pthjoin = os.path.join
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def generate_css():
import lesscpy
from io import StringIO
less = ""
for f in os.listdir(pthjoin(STATICFOLDER,"less")):
with open(pthjoin(STATICFOLDER,"less",f),"r") as lessf:
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less += lessf.read()
css = lesscpy.compile(StringIO(less),minify=True)
return css
css = generate_css()
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#os.makedirs("web/css",exist_ok=True)
#with open("web/css/style.css","w") as f:
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# f.write(css)
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@webserver.route("")
@webserver.route("/")
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def mainpage():
response = static_html("start")
return response
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@webserver.error(400)
@webserver.error(403)
@webserver.error(404)
@webserver.error(405)
@webserver.error(408)
@webserver.error(500)
@webserver.error(505)
def customerror(error):
code = int(str(error).split(",")[0][1:])
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log("HTTP Error: " + str(code),module="error")
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if os.path.exists(pthjoin(WEBFOLDER,"errors",str(code) + ".pyhp")):
return pyhpfile(pthjoin(WEBFOLDER,"errors",str(code) + ".pyhp"),{"errorcode":code})
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else:
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return pyhpfile(pthjoin(WEBFOLDER,"errors","generic.pyhp"),{"errorcode":code})
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def graceful_exit(sig=None,frame=None):
#urllib.request.urlopen("http://[::1]:" + str(DATABASE_PORT) + "/sync")
log("Received signal to shutdown")
try:
database.sync()
except Exception as e:
log("Error while shutting down!",e)
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log("Server shutting down...")
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os._exit(42)
@webserver.route("/image")
def dynamic_image():
keys = FormsDict.decode(request.query)
relevant, _, _, _ = uri_to_internal(keys)
result = resolveImage(**relevant)
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if result == "": return ""
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redirect(result,307)
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@webserver.route("/images/<pth:re:.*\\.jpeg>")
@webserver.route("/images/<pth:re:.*\\.jpg>")
@webserver.route("/images/<pth:re:.*\\.png>")
@webserver.route("/images/<pth:re:.*\\.gif>")
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def static_image(pth):
small_pth = pth + "-small"
if os.path.exists("images/" + small_pth):
response = static_file("images/" + small_pth,root="")
else:
try:
from wand.image import Image
img = Image(filename="images/" + pth)
x,y = img.size[0], img.size[1]
smaller = min(x,y)
if smaller > 300:
ratio = 300/smaller
img.resize(int(ratio*x),int(ratio*y))
img.save(filename="images/" + small_pth)
response = static_file("images/" + small_pth,root="")
else:
response = static_file("images/" + pth,root="")
except:
response = static_file("images/" + pth,root="")
#response = static_file("images/" + pth,root="")
response.set_header("Cache-Control", "public, max-age=86400")
return response
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@webserver.route("/style.css")
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def get_css():
response.content_type = 'text/css'
return css
@webserver.route("/<name>.<ext>")
def static(name,ext):
assert ext in ["txt","ico","jpeg","jpg","png","less","js"]
response = static_file(ext + "/" + name + "." + ext,root=STATICFOLDER)
response.set_header("Cache-Control", "public, max-age=3600")
return response
@webserver.route("/media/<name>.<ext>")
def static(name,ext):
assert ext in ["ico","jpeg","jpg","png"]
response = static_file(ext + "/" + name + "." + ext,root=STATICFOLDER)
response.set_header("Cache-Control", "public, max-age=3600")
return response
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@webserver.route("/<name>")
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def static_html(name):
linkheaders = ["</style.css>; rel=preload; as=style"]
keys = remove_identical(FormsDict.decode(request.query))
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pyhp_file = os.path.exists(pthjoin(WEBFOLDER,name + ".pyhp"))
html_file = os.path.exists(pthjoin(WEBFOLDER,name + ".html"))
pyhp_pref = settings.get_settings("USE_PYHP")
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adminmode = request.cookies.get("adminmode") == "true" and database.checkAPIkey(request.cookies.get("apikey")) is not False
clock = Clock()
clock.start()
# if a pyhp file exists, use this
if (pyhp_file and pyhp_pref) or (pyhp_file and not html_file):
environ = {} #things we expose to the pyhp pages
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environ["adminmode"] = adminmode
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if adminmode: environ["apikey"] = request.cookies.get("apikey")
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# maloja
environ["db"] = database
environ["htmlmodules"] = htmlmodules
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environ["htmlgenerators"] = htmlgenerators
environ["malojatime"] = malojatime
environ["utilities"] = utilities
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environ["urihandler"] = urihandler
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#environ["info"] = info
# external
environ["urllib"] = urllib
# request
environ["filterkeys"], environ["limitkeys"], environ["delimitkeys"], environ["amountkeys"] = uri_to_internal(keys)
#response.set_header("Content-Type","application/xhtml+xml")
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res = pyhpfile(pthjoin(WEBFOLDER,name + ".pyhp"),environ)
log("Generated page " + name + " in " + str(clock.stop()) + "s (PYHP)",module="debug")
return res
# if not, use the old way
else:
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with open(pthjoin(WEBFOLDER,name + ".html")) as htmlfile:
html = htmlfile.read()
# apply global substitutions
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with open(pthjoin(WEBFOLDER,"common/footer.html")) as footerfile:
footerhtml = footerfile.read()
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with open(pthjoin(WEBFOLDER,"common/header.html")) as headerfile:
headerhtml = headerfile.read()
html = html.replace("</body>",footerhtml + "</body>").replace("</head>",headerhtml + "</head>")
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# If a python file exists, it provides the replacement dict for the html file
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if os.path.exists(pthjoin(WEBFOLDER,name + ".py")):
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#txt_keys = SourceFileLoader(name,"web/" + name + ".py").load_module().replacedict(keys,DATABASE_PORT)
try:
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module = importlib.import_module(".web." + name,package="maloja")
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txt_keys,resources = module.instructions(keys)
except Exception as e:
log("Error in website generation: " + str(sys.exc_info()),module="error")
raise
# add headers for server push
for resource in resources:
if all(ord(c) < 128 for c in resource["file"]):
# we can only put ascii stuff in the http header
linkheaders.append("<" + resource["file"] + ">; rel=preload; as=" + resource["type"])
# apply key substitutions
for k in txt_keys:
if isinstance(txt_keys[k],list):
# if list, we replace each occurence with the next item
for element in txt_keys[k]:
html = html.replace(k,element,1)
else:
html = html.replace(k,txt_keys[k])
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response.set_header("Link",",".join(linkheaders))
log("Generated page " + name + " in " + str(clock.stop()) + "s (Python+HTML)",module="debug")
return html
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#return static_file("web/" + name + ".html",root="")
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# Shortlinks
@webserver.get("/artist/<artist>")
def redirect_artist(artist):
redirect("/artist?artist=" + artist)
@webserver.get("/track/<artists:path>/<title>")
def redirect_track(artists,title):
redirect("/track?title=" + title + "&" + "&".join("artist=" + artist for artist in artists.split("/")))
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#set graceful shutdown
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signal.signal(signal.SIGINT, graceful_exit)
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signal.signal(signal.SIGTERM, graceful_exit)
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#rename process, this is now required for the daemon manager to work
setproctitle.setproctitle("Maloja")
## start database
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database.start_db()
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database.dbserver.mount(server=webserver)
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log("Starting up Maloja server...")
#run(webserver, host=HOST, port=MAIN_PORT, server='waitress')
waitress.serve(webserver, host=HOST, port=MAIN_PORT, threads=THREADS)