Commit 1ef4f078 authored by Theresa Pollinger's avatar Theresa Pollinger
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Initial commit

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# to run mmt server : cf.
import subprocess["ls", "-l", "/dev/null"], stdout=subprocess.PIPE) # TODO
#for now, running
# mmt
# extension info.kwarc.mmt.interviews.InterviewServer
# server on 8080
#TODO ask dennis on whether and how to delete modules
# to do http requests
import requests
from requests.utils import quote
from lxml import etree
from openmath import openmath
class MMTServerError(Exception):
def __init__(self, err):
self.error = err
super(MMTServerError, self).__init__("MMT server error: " + str(self.error))
class MMTReply:
def __init__(self, mmtinterface, theorypath):
# theorypath is relative for now
self.theorypath = theorypath
(self.ok, self.root) = mmtinterface.query_for(theorypath)
if not self.ok:
raise MMTServerError(etree.tostring(self.root, pretty_print=True).decode())
for element in self.root.iter("div"):
if (element.get('class')) == 'error':
self.ok = False
for child in element:
if (child.get('class')) == 'message':
raise MMTServerError(child.text)
def getConstant(self, constantname):
elements = self.getConstants()
#print ("elements: " + str(elements))
for element in elements:
if element.get('name') == constantname:
return element
def getConstants(self):
elements = []
for element in self.root.iter("constant"):
#print("Constant: %s - %s - %s" % (element, element.text, element.keys()))
return elements
def getDefinition(self, constantname):
element = self.getConstant(constantname)
if element is not None:
for child in element:
if (child.tag) == 'definition':
return child
def getType(self, constantname):
element = self.getConstant(constantname)
if element is not None:
for child in element:
if (child.tag) == 'type':
return child
#(probably volatile) accesses to concrete data structures
#class InterviewHelper:
def getIntervalBoundaries (self, mmtreply, intervalname):
child = mmtreply.getDefinition(intervalname)
for oms in child.iter("{*}OMS"):
#print("OMS: %s - %s - %s" % (oms, oms.text, oms.keys()))
if (oms.get('name') == 'ccInterval'):
a = oms.getnext()
b = a.getnext()
#print("a: %s - %s - %s" % (a, a.text, a.get('value')))
#print("b: %s - %s - %s" % (b, b.text, b.get('value')))
return (a.get('value'), b.get('value'))
def printElement(element):
print (etree.tostring(element, pretty_print=True).decode())
class MMTInterface:
def __init__(self):
# set parameters for communication with mmt server
self.serverInstance = 'http://localhost:8080'
self.extension = ':interview'
self.URIprefix = ''
self.namespace = 'MitM/smglom/calculus' #TODO
self.debugprint = False
def mmt_new_theory(self, thyname):
#So, ich hab mal was zu MMT/devel gepusht. Es gibt jetzt eine Extension namens InterviewServer. Starten tut man die mit "extension info.kwarc.mmt.interviews.InterviewServer"
#Wenn du dann in MMT den Server (sagen wir auf Port 8080) startest, kannst du folgende HTTP-Requests ausführen:
#"http://localhost:8080/:interview/new?theory="<MMT URI>"" fügt eine neue theorie mit der uri <MMT URI> hinzu
req = '/' + self.extension + '/new?theory=' + self.get_mpath(thyname) + '&meta='
return self.http_request(req)
def mmt_new_view(self, viewname, fromtheory, totheory):
# analog für ?view="<MMT URI>".
req = '/' + self.extension + '/new?view=' + self.get_mpath(viewname) + '&from=' + self.get_mpath(fromtheory) + '&to=' + self.get_mpath(totheory)
return self.http_request(req)
def mmt_new_decl(self, declname, thyname, declcontent):
#".../:interview/new?decl="<irgendwas>"&cont="<MMT URI>" ist der query-path um der theorie <MMT URI> eine neue declaration hinzuzufügen (includes, konstanten...). Die Declaration sollte dabei in MMT-syntax als text im Body des HTTP-requests stehen.
post = '/' + self.extension + '/new?decl=' + declname + '&cont=' + self.get_mpath(thyname)
return self.http_request(post, add_dd(declcontent))
def mmt_new_term(self, termname, thyname, termcontent):
#analog für ".../:interview/new?term="<irgendwas>"&cont="<MMT URI>" für terme - nachdem da nicht klar ist was der server damit tun sollte gibt er den geparsten term als omdoc-xml zurück (wenn alles funktioniert)
post = '/' + self.extension + '/new?term=' + termname + '&cont=' + self.get_mpath(thyname)
return self.http_request(post, termcontent)
def http_request(self, message, data=None):
url = self.serverInstance + (message)
print(url) if self.debugprint else 0
session = requests.Session()
adapter = requests.adapters.HTTPAdapter()
session.mount('https://', adapter)
session.mount('http://', adapter)
if data:
binary_data = data.encode('UTF-8')
print('\n' + str(data)) if self.debugprint else 0
headers = {'content-type': 'application/json',
'content-encoding': 'UTF-8'}
req =, data=binary_data, headers=headers, stream=True)
req = requests.get(url)
except ConnectionError as error: #this seems to never be called
print("Are you sure the mmt server is running?")
raise SystemExit
if req.text.startswith('<'):
root = etree.fromstring(req.text)
if root is not None:
if req.status_code == 200:
return True
if not req.text.startswith('<'):
return (False, req.text)
def get_mpath(self, thyname):
mpath = self.URIprefix + self.namespace + thyname #TODO
return mpath
def query_for(self, thingname):
#this here just stolen from what MMTPy does
#querycontent = b'<function name="presentDecl" param="xml"><literal><uri path=""/></literal></function>'
querycontent = '<function name="presentDecl" param="xml"><literal><uri path="' + self.get_mpath( thingname )+ '"/></literal></function>'
return self.http_qrequest(querycontent)
def http_qrequest(self, data, message='/:query'):
#print(self.serverInstance + message)
session = requests.Session()
adapter = requests.adapters.HTTPAdapter()
session.mount('https://', adapter)
session.mount('http://', adapter)
#print('\n' + str(data))
binary_data = data.encode('UTF-8')
headers = {'content-type': 'application/xml'}
req = + message), data=binary_data, headers=headers, stream=True)
root = etree.fromstring(req.text)
if req.status_code == 200:
return (True, root)
return (False, root)
def add_dd(string):
return string + "❙"
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