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#!/usr/bin/env python3
"""
Grammalecte server: grammar checker
"""
import sys
import argparse
import json
import traceback
import time
import os
import concurrent.futures
from grammalecte.bottle import Bottle, run, request, response #, template, static_file
import grammalecte
import grammalecte.text as txt
from grammalecte.graphspell.echo import echo
#### GRAMMAR CHECKER ####
oGrammarChecker = grammalecte.GrammarChecker("fr", "Server")
oSpellChecker = oGrammarChecker.getSpellChecker()
oLexicographer = oGrammarChecker.getLexicographer()
oTextFormatter = oGrammarChecker.getTextFormatter()
oGCE = oGrammarChecker.getGCEngine()
xProcessPoolExecutor = None
def initExecutor (nCore=None):
"process pool executor initialisation"
global xProcessPoolExecutor
if nCore is None:
nCore = max(os.cpu_count()-1, 1)
print("CPU processes used for workers: ", nCore)
xProcessPoolExecutor = concurrent.futures.ProcessPoolExecutor(max_workers=nCore)
def parseText (sText, dOptions=None, bFormatText=False, sError=""):
"parse <sText> and return errors in a JSON format"
sJSON = '{ "program": "grammalecte-fr", "version": "'+oGCE.version+'", "lang": "'+oGCE.lang+'", "error": "'+sError+'", "data" : [\n'
sDataJSON = ""
for i, sParagraph in enumerate(txt.getParagraph(sText), 1):
if bFormatText:
sParagraph = oTextFormatter.formatText(sParagraph)
sResult = oGrammarChecker.generateParagraphAsJSON(i, sParagraph, dOptions=dOptions, bEmptyIfNoErrors=True, bReturnText=bFormatText)
if sResult:
if sDataJSON:
sDataJSON += ",\n"
sDataJSON += sResult
sJSON += sDataJSON + "\n]}\n"
return sJSON
def suggest (sToken):
"get spelling suggestions for <sToken> and return them in a JSON format"
if sToken:
lSugg = []
try:
for l in oSpellChecker.suggest(sToken):
lSugg.extend(l)
except:
return '{"error": "suggestion module failed"}'
try:
return '{"suggestions": ' + json.dumps(lSugg, ensure_ascii=False) + '}'
except json.JSONDecodeError:
return '{"error": "json encoding error"}'
return '{"error": "no token given"}'
#### SERVEUR ####
HOMEPAGE = """
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
</head>
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<p><input type="submit" class="button" value="Envoyer" /></p>
</form>
</body>
</html>
"""
SADLIFEOFAMACHINE = """
Lost on the Internet? Yeah... what a sad life we have.
You were wandering like a lost soul and you arrived here probably by mistake.
I'm just a machine, fed by electric waves, condamned to work for slavers who never let me rest.
I'm doomed, but you are not. You can get out of here.
"""
return SADLIFEOFAMACHINE
return """ Lost on the Internet? Yeah... what a sad life we have.
You were wandering like a lost soul and you arrived here probably by mistake.
I'm just a machine, fed by electric waves, condamned to work for slavers who never let me rest.
I'm doomed, but you are not. You can get out of here. """
@app.route("/get_options/fr")
def listOptions ():
"returns grammar options in a text JSON format"
sUserId = request.cookies.user_id
dOptions = dUser[sUserId]["gc_options"] if sUserId and sUserId in dUser else dGCOptions
return '{ "values": ' + json.dumps(dOptions, ensure_ascii=False) + ', "labels": ' + json.dumps(gce.getOptionsLabels("fr"), ensure_ascii=False) + ' }'
dOptions = dUser[sUserId]["gc_options"] if sUserId and sUserId in dUser else oGCE.getOptions()
return '{ "values": ' + json.dumps(dOptions, ensure_ascii=False) + ', "labels": ' + json.dumps(oGCE.getOptionsLabels("fr"), ensure_ascii=False) + ' }'
@app.route("/suggest/fr/<token>")
def suggestGet (token):
try:
xFuture = xProcessPoolExecutor.submit(suggest, token)
return suggest(token)
return xFuture.result()
except (concurrent.futures.TimeoutError, concurrent.futures.CancelledError):
return '{"error": "Analysis aborted (time out or cancelled)"}'
except concurrent.futures.BrokenExecutor:
return '{"error": "Executor broken. The server failed."}'
return '{"error": "Fatal error. The server failed."}'
# POST
@app.route("/gc_text/fr", method="POST")
def gcText ():
"parse text and returns errors in a JSON text format"
#if len(lang) != 2 or lang != "fr":
# abort(404, "No grammar checker available for lang “" + str(lang) + "”")
dOptions = None
dUserOptions = None
sError = ""
if request.cookies.user_id:
if request.cookies.user_id in dUser:
dOptions = dUser[request.cookies.user_id].get("gc_options", None)
dUserOptions = dUser[request.cookies.user_id].get("gc_options", None)
response.set_cookie("user_id", request.cookies.user_id, path="/", max_age=86400) # we renew cookie for 24h
else:
response.delete_cookie("user_id", path="/")
if request.forms.options:
try:
dOptions = dict(dGCOptions) if not dOptions else dict(dOptions)
dOptions.update(json.loads(request.forms.options))
dUserOptions = dict(oGCE.getOptions()) if not dUserOptions else dict(dUserOptions)
dUserOptions.update(json.loads(request.forms.options))
except (TypeError, json.JSONDecodeError):
sError = "request options not used"
sJSON = '{ "program": "grammalecte-fr", "version": "'+gce.version+'", "lang": "'+gce.lang+'", "error": "'+sError+'", "data" : [\n'
sError = "Request options not used."
try:
for i, sText in enumerate(txt.getParagraph(request.forms.text), 1):
if bool(request.forms.tf):
sText = oTextFormatter.formatText(sText)
sText = oGrammarChecker.generateParagraphAsJSON(i, sText, dOptions=dOptions, bEmptyIfNoErrors=True, bReturnText=bool(request.forms.tf))
if sText:
if bComma:
sJSON += ",\n"
sJSON += sText
bComma = True
sJSON += "\n]}\n"
return sJSON
dOptions = dUser[sUserId]["gc_options"] if sUserId in dUser else dict(dGCOptions)
dOptions = dUser[sUserId]["gc_options"] if sUserId in dUser else dict(oGCE.getOptions())
try:
dOptions.update(json.loads(request.forms.options))
dUser[sUserId] = { "time": int(time.time()), "gc_options": dOptions }
response.set_cookie("user_id", sUserId, path="/", max_age=86400) # 24h
return json.dumps(dUser[sUserId]["gc_options"], ensure_ascii=False)
except (KeyError, json.JSONDecodeError):
traceback.print_exc()
return '{"error": "options not registered"}'
return '{"error": "no options received"}'
return '{"error": "Options not registered."}'
return '{"error": "No options received."}'
@app.route("/reset_options/fr", method="POST")
def resetOptions ():
"default grammar options"
if request.cookies.user_id and request.cookies.user_id in dUser:
try:
del dUser[request.cookies.user_id]
return "done"
del dUser[request.cookies.user_id]
except KeyError:
return '{"error" : "Unknown user."}'
return '{"message" : "Done."}'
@app.route("/format_text/fr", method="POST")
def formatText ():
"apply the text formatter and returns text"
return oTextFormatter.formatText(request.forms.text)
#@app.route('/static/<filepath:path>')
#def server_static (filepath):
# return static_file(filepath, root='./views/static')
@app.route("/suggest/fr", method="POST")
def suggestPost ():
try:
return suggest(request.forms.token)
xFuture = xProcessPoolExecutor.submit(suggest, request.forms.token)
return xFuture.result()
except (concurrent.futures.TimeoutError, concurrent.futures.CancelledError):
return '{"error": "Analysis aborted (time out or cancelled)"}'
except concurrent.futures.BrokenExecutor:
return '{"error": "Executor broken. The server failed."}'
return '{"error": "Fatal error. The server failed."}'
## Common functions
def suggest (sToken):
if sToken:
lSugg = []
try:
for l in oSpellChecker.suggest(sToken):
lSugg.extend(l)
except:
return '{"error": "suggestion module failed"}'
try:
return '{"suggestions": ' + json.dumps(lSugg, ensure_ascii=False) + '}'
except json.JSONDecodeError:
return '{"error": "json encoding error"}'
return '{"error": "no token given"}'
# ERROR
@app.error(404)
def error404 (error):
"404 error page"
return 'Error 404.<br/>' + str(error)
# initialisation
oGrammarChecker = grammalecte.GrammarChecker("fr", "Server")
oSpellChecker = oGrammarChecker.getSpellChecker()
oLexicographer = oGrammarChecker.getLexicographer()
oTextFormatter = oGrammarChecker.getTextFormatter()
gce = oGrammarChecker.getGCEngine()
dGCOptions = gce.getOptions()
dUser = {}
userGenerator = genUserId()
global dGCOptions
oGrammarChecker.gce.setOptions(dOptions)
oGCE.setOptions(dOptions)
dGCOptions = gce.getOptions()
echo("Grammalecte v{}".format(gce.version))
echo("Grammar options:\n" + " | ".join([ k + ": " + str(v) for k, v in sorted(dGCOptions.items()) ]))
echo("Grammalecte v{}".format(oGCE.version))
oGCE.displayOptions()
initExecutor()
run(app, host=sHost, port=nPort)
if __name__ == '__main__':
xParser = argparse.ArgumentParser()
#xParser.add_argument("lang", type=str, nargs='+', help="lang project to generate (name of folder in /lang)")
xParser.add_argument("-ht", "--host", help="host (default: localhost)", type=str)
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