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| # APICARTO | ||
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| This software is released under the licence CeCILL-B (Free BSD compatible) | ||
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| You may obtain a copy of the License at : | ||
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| http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt (english) | ||
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| http://www.cecill.info/licences/Licence_CeCILL-B_V1-fr.txt (french) | ||
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| see http://www.cecill.info/ | ||
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| Copyright (c) 2017 IGN |
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| var Router = require('express').Router; | ||
| var router = new Router(); | ||
| var cors = require('cors'); | ||
| const { check } = require('express-validator/check'); | ||
| const { matchedData } = require('express-validator/filter'); | ||
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| const validateParams = require('../../middlewares/validateParams'); | ||
| const {isGeometry,isCodeInsee} = require('../../checker'); | ||
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| const gppWfsClient = require('../../middlewares/gppWfsClient'); | ||
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| const _ = require('lodash'); | ||
| const lastYearRPG = 2017; | ||
| const firstYearRPG = 2010; | ||
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| /** | ||
| * Creation d'une chaîne de proxy sur le geoportail | ||
| * @param {String} valeurSearch du chemin le nom de la couche WFS | ||
| */ | ||
| function createRpgProxy(valeurSearch) { | ||
| return [ | ||
| gppWfsClient, | ||
| validateParams, | ||
| function(req,res){ | ||
| var params = matchedData(req); | ||
| var FeatureTypeName= ''; | ||
| /* Modification année dans le flux */ | ||
| if (valeurSearch == 'avant2015') { | ||
| if ((params.annee >= firstYearRPG) && (params.annee < 2015)) { | ||
| if (params.annee == 2014) { | ||
| featureTypeName = 'RPG.' + params.annee + ':ilots_anonymes'; | ||
| } else { | ||
| featureTypeName = 'RPG.' + params.annee + ':rpg_' + params.annee; | ||
| } | ||
| } else { | ||
| return res.status(400).send({ | ||
| code: 400, | ||
| message: 'Année Invalide : Valeurs uniquement entre ' + firstYearRPG + ' et 2014' | ||
| }); | ||
| } | ||
| } else { | ||
| if ((params.annee >= 2015) && (params.annee <= lastYearRPG)) { | ||
| featureTypeName = 'RPG.' + params.annee + ':parcelles_graphiques'; | ||
| } else { | ||
| return res.status(400).send({ | ||
| code: 400, | ||
| essage: 'Année Invalide : Valeurs uniquement entre 2015 et ' + lastYearRPG | ||
| }); | ||
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| } | ||
| } | ||
| /* Supprimer annee inutile ensuite de params */ | ||
| params = _.omit(params,'annee'); | ||
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| /* Value default pour _limit an _start */ | ||
| if ( typeof params._start == 'undefined' ) {params._start = 0;} | ||
| if( typeof params._limit == 'undefined') {params._limit = 1000;} | ||
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| /* requête WFS GPP*/ | ||
| req.gppWfsClient.getFeatures(featureTypeName, params) | ||
| /* uniformisation des attributs en sortie */ | ||
| .then(function(featureCollection){ | ||
| featureCollection.features.forEach(function(feature){ | ||
| if ( ! feature.properties.code_insee ){ | ||
| feature.properties.code_insee = feature.properties.code_dep+feature.properties.code_com; | ||
| } | ||
| }); | ||
| return featureCollection; | ||
| }) | ||
| .then(function(featureCollection) { | ||
| res.json(featureCollection); | ||
| }) | ||
| .catch(function(err) { | ||
| res.status(500).json(err); | ||
| }) | ||
| ; | ||
| } | ||
| ]; | ||
| } | ||
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| var corsOptionsGlobal = function(origin,callback) { | ||
| var corsOptions; | ||
| if (origin) { | ||
| corsOptions = { | ||
| origin: origin, | ||
| optionsSuccessStatus: 200, | ||
| methods: 'GET,POST', | ||
| credentials: true | ||
| } | ||
| } else { | ||
| corsOptions = { | ||
| origin : '*', | ||
| optionsSuccessStatus : 200, | ||
| methods: 'GET,POST', | ||
| credentials: true | ||
| } | ||
| } | ||
| callback(null, corsOptions); | ||
| } | ||
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| /** | ||
| * Permet d'alerter en cas de paramètre ayant changer de nom | ||
| * | ||
| * TODO Principe à valider (faire un middleware de renommage des paramètres si l'approche est trop violente) | ||
| */ | ||
| var rpgValidators = [ | ||
| check('annee').optional().isNumeric().isLength({min:4,max:4}).withMessage('Année sur 4 chiffres'), | ||
| check('code_cultu').optional().isString(), | ||
| check('geom').optional().custom(isGeometry), | ||
| check('_limit').optional().isNumeric(), | ||
| check('_start').optional().isNumeric() | ||
| ]; | ||
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| /** Nous avons 2 requetes identiques mais il y a une difference dans les champs | ||
| * Possibilité de traiter différement par la suite. | ||
| */ | ||
| router.get('/apres2014', cors(corsOptionsGlobal),rpgValidators, createRpgProxy('apres2014')); | ||
| router.post('/apres2014', cors(corsOptionsGlobal),rpgValidators, createRpgProxy('apres2014')); | ||
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| router.get('/avant2015', cors(corsOptionsGlobal),rpgValidators, createRpgProxy('avant2015')); | ||
| router.post('/avant2015', cors(corsOptionsGlobal),rpgValidators, createRpgProxy('avant2015')); | ||
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| module.exports=router; |
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