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https://gitlab2.federez.net/re2o/re2o
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bug list vide
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grisel-davy
root
parent
1ca1b28a36
commit
7f6729c2a7
1 changed files with 129 additions and 84 deletions
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@ -43,6 +43,10 @@ from django.db import IntegrityError
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from django.db.models import ProtectedError, Prefetch
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from django.core.exceptions import ValidationError
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from django.contrib.staticfiles.storage import staticfiles_storage
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from django.template.loader import get_template
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from django.template import Context, Template, loader
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import pprint
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from users.views import form
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from re2o.utils import re2o_paginator, SortTable
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@ -53,13 +57,14 @@ from re2o.acl import (
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can_view,
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can_view_all,
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)
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from re2o.settings import MEDIA_ROOT
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from machines.forms import (
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DomainForm,
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EditInterfaceForm,
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AddInterfaceForm
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)
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from machines.views import generate_ipv4_mbf_param
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from machines.models import Interface
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from machines.models import Interface, Service_link
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from preferences.models import AssoOption, GeneralOption
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from .models import (
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@ -71,7 +76,8 @@ from .models import (
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ConstructorSwitch,
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AccessPoint,
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SwitchBay,
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Building
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Building,
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Server
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)
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from .forms import (
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EditPortForm,
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@ -112,6 +118,12 @@ def index(request):
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)
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pagination_number = GeneralOption.get_cached_value('pagination_number')
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switch_list = re2o_paginator(request, switch_list, pagination_number)
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if any(service_link.need_regen() for service_link in Service_link.objects.filter(service__service_type='graph_topo')):
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make_machine_graph()
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for service_link in Service_link.objects.filter(service__service_type='graph_topo'):
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service_link.done_regen()
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return render(
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request,
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'topologie/index.html',
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@ -937,93 +949,126 @@ def make_machine_graph():
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"""
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Crée le fichier dot et l'image du graph des Switchs
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"""
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#Syntaxe DOT temporaire, A mettre dans un template:
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lignes=['''digraph Switchs {
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node [
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fontname=Helvetica
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fontsize=8
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shape=plaintext]
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edge[arrowhead=odot,arrowtail=dot]''']
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node_fixe='''node [label=<
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<TABLE BGCOLOR="palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
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<TR><TD COLSPAN="2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
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<FONT FACE="Helvetica Bold" COLOR="white">
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{}
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</FONT></TD></TR>
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<TR><TD ALIGN="LEFT" BORDER="0">
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<FONT COLOR="#7B7B7B" >{}</FONT>
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</TD>
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<TD ALIGN="LEFT">
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<FONT COLOR="#7B7B7B" >{}</FONT>
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</TD></TR>
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<TR><TD ALIGN="LEFT" BORDER="0">
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<FONT COLOR="#7B7B7B" >{}</FONT>
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</TD>
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<TD ALIGN="LEFT">
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<FONT>{}</FONT>
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</TD></TR>'''
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node_ports='''<TR><TD ALIGN="LEFT" BORDER="0">
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<FONT COLOR="#7B7B7B" >{}</FONT>
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</TD>
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<TD ALIGN="LEFT">
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<FONT>{}</FONT>
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</TD></TR>'''
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cluster='''subgraph cluster_{} {{
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color=blue;
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label="Batiment {}";'''
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end_table='''</TABLE>
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>] \"{}_{}\" ;'''
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switch_alone='''{} [label=<
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<TABLE BGCOLOR="palegoldenrod" BORDER="0" CELLBORDER="0" CELLSPACING="0">
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<TR><TD COLSPAN="2" CELLPADDING="4" ALIGN="CENTER" BGCOLOR="olivedrab4">
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<FONT FACE="Helvetica Bold" COLOR="white">
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{}
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</FONT></TD></TR>
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</TABLE>
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>]'''
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missing=[]
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detected=[]
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for sw in Switch.objects.all():
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if(sw not in detected):
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missing.append(sw)
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dico = {
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'subs': [],
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'links' : [],
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'alone': [],
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'colors': {
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'head': "#7f0505",
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'back': "#b5adad",
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'texte': "#563d01",
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'border_bornes': "#02078e",
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'head_bornes': "#25771c",
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'head_server': "#1c3777"
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}
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}
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missing = list(Switch.objects.all())
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detected = []
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#Parcours tous les batiments
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for building in Building.objects.all():
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lignes.append(cluster.format(len(lignes),building))
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dico['subs'].append(
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{
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'bat_id': building.id,
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'bat_name': building,
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'switchs': [],
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'bornes': [],
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'machines': []
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}
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)
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#Parcours tous les switchs de ce batiment
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for switch in Switch.objects.filter(switchbay__building=building):
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lignes.append(node_fixe.format(switch.main_interface().domain.name,"Modèle",switch.model,"Nombre de ports",switch.number))
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for p in switch.ports.all().filter(related__isnull=False):
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lignes.append(node_ports.format(p.port,p.related.switch.main_interface().domain.name))
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lignes.append(end_table.format(building.id,switch.id))
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lignes.append("}")
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while(missing!=[]):
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lignes,new_detected=recursive_switchs(missing[0].ports.all().filter(related=None).first(),None,lignes,[missing[0]])
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dico['subs'][-1]['switchs'].append({
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'name': switch.main_interface().domain.name,
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'nombre': switch.number,
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'model': switch.model,
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'id': switch.id,
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'batiment': building,
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'ports': []
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})
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#Parcours tous les ports liés de ce switch, on ajoute les switchs relié à celui-ci
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for port in switch.ports.filter(related__isnull=False):
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dico['subs'][-1]['switchs'][-1]['ports'].append({
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'numero': port.port,
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'related': port.related.switch.main_interface().domain.name
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})
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for ap in AccessPoint.all_ap_in(building):
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dico['subs'][-1]['bornes'].append({
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'name': ap.short_name,
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'switch': ap.switch()[0].main_interface().domain.name,
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'port': ap.switch()[0].ports.filter(
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machine_interface__machine=ap
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)[0].port
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})
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for server in Server.all_server_in(building):
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dico['subs'][-1]['machines'].append({
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'name': server.short_name,
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'switch': server.switch()[0].main_interface().domain.name,
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'port': Port.objects.filter(machine_interface__machine=server)[0].port
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})
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#Tant que la liste des oubliés n'est pas vide i.e on les a pas tous passer
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while missing:
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print("depart initial sur:{}".format(missing[0]))
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if missing[0].ports.count():#le switch à des ports
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links, new_detected = recursive_switchs(missing[0].ports.first(), None, [missing[0]])
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for link in links:
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dico['links'].append(link)
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#On recrée la liste des oubliés et des detectés
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missing=[i for i in missing if i not in new_detected]
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detected+=new_detected
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for switch in Switch.objects.all().filter(switchbay__isnull=True).exclude(ports__related__isnull=False):
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lignes.append(switch_alone.format(switch.id,switch.main_interface().domain.name))
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lignes.append("}")
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fichier = open("media/images/switchs.dot","w")
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for ligne in lignes:
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fichier.write(ligne+"\n")
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detected += new_detected
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else:#Si le switch n'a pas de port, on explore pas et on passe au suivant
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del missing[0]
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#Tous ceux qui ne sont ni connectés ni dans un batiment
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for switch in Switch.objects.filter(switchbay__isnull=True).exclude(ports__related__isnull=False):
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dico['alone'].append({
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'id': switch.id,
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'name': switch.main_interface().domain.name
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})
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#Exportation du dot et génération de l'image
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dot_data=generate_image(dico)
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fichier = open(MEDIA_ROOT + "/images/switchs.dot","w", encoding='utf-8')
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fichier.write(dot_data)
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fichier.close()
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unflatten = Popen(["unflatten","-l", "3", "media/images/switchs.dot"], stdout=PIPE)
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image = Popen(["dot", "-Tpng", "-o", "media/images/switchs.png"], stdin=unflatten.stdout, stdout=PIPE)
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unflatten = Popen(
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["unflatten","-l", "3", MEDIA_ROOT + "/images/switchs.dot"],
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stdout=PIPE
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)
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image = Popen(
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["dot", "-Tpng", "-o", MEDIA_ROOT + "/images/switchs.png"],
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stdin=unflatten.stdout,
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stdout=PIPE
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)
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def generate_image(data,template='topologie/graph_switch.dot'):
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t = loader.get_template(template)
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if not isinstance(t, Template) and not (hasattr(t, 'template') and isinstance(t.template, Template)):
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raise Exception("Le template par défaut de Django n'est pas utilisé."
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"Cela peut mener à des erreurs de rendu."
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"Vérifiez les paramètres")
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c = Context(data).flatten()
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dot = t.render(c)
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return(dot)
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def recursive_switchs(port_start, switch_before, lignes,detected):
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def recursive_switchs(port_start, switch_before, detected):
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"""
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Parcour récursivement le switchs auquel appartient port_start pour trouver les ports suivants liés
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"""
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l_ports=port_start.switch.ports.filter(related__isnull=False)
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for port in l_ports:
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if port.related.switch!=switch_before and port.related.switch!=port.switch:
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links=[]
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for sw in [switch for switch in [port_start.switch,port.related.switch]]:
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if(sw not in detected):
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detected.append(sw)
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if(sw.switchbay.building):
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links.append("\"{}_{}\"".format(sw.switchbay.building.id,sw.id))
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else:
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links.append("\"{}\"".format(sw.id))
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lignes.append(links[0]+" -> "+links[1])
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lignes, detected = recursive_switchs(port.related, port_start.switch, lignes, detected)
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return (lignes, detected)
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links_return=[]#Liste de dictionaires qui stockes les nouveaux liens trouvés
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for port in port_start.switch.ports.filter(related__isnull=False):#Liste des ports dont le related est non null
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if port.related.switch!=switch_before and port.related.switch != port.switch:#Pas le switch dont on descend, pas le switch actuel
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links = {#dictionaire contenant le lien
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'depart':port_start.switch.id,
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'arrive':port.related.switch.id
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}
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if port.related.switch not in detected:#si le switch au bout de ce lien n'a pas été déjà exploré
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links_down, detected = recursive_switchs(port.related, port_start.switch, detected)#On l'explore et on récupère le résultat
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for link in links_down:#On ajoute les résultats du niveau inférieur à ceux du niveau actuel
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if link:
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links_return.append(link)
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links_return.append(links)#Ajout des liens trouvés (niveau inférieur et actuel) à la liste à renvoyer
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detected.append(port_start.switch)#Le switch est considéré comme parcouru
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return (links_return, detected)
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