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or.js
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or.js
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"use strict";
const locreq = require("locreq")(__dirname);
const Promise = require("bluebird");
const Error = locreq("lib/response/error.js").Error;
const AccessStrategy = locreq("lib/chip-types/access-strategy.js");
const Query = locreq("lib/datastore/query.js");
function parse_params(app, params) {
return Object.keys(params).map(i => new AccessStrategy(app, params[i]));
}
module.exports = function(app) {
const or = {
name: "or",
getRestrictingQuery: async function(context, params) {
const access_strategies = parse_params(app, params);
const queries = await Promise.map(access_strategies, strategy =>
strategy.getRestrictingQuery(context)
);
if (queries.some(query => query instanceof Query.AllowAll)) {
return new Query.AllowAll();
}
return new Query.Or(...queries);
},
item_sensitive: function(params) {
const access_strategies = parse_params(app, params);
return Promise.map(access_strategies, function(access_strategy) {
return access_strategy.is_item_sensitive();
}).reduce((a, b) => a || b);
},
checker_function: function(context, params, item) {
if (context.is_super) {
return Promise.resolve();
}
return or.item_sensitive(params).then(function(item_sensitive) {
if (item_sensitive && item === undefined) {
return undefined;
} else {
const access_strategies = parse_params(app, params);
const results = access_strategies.map(function(strategy) {
return strategy.check(context, item);
});
return Promise.any(results).catch(
Promise.AggregateError,
function(aggregated_errors) {
aggregated_errors.forEach(function(error) {
if (!(error instanceof Error)) {
throw error;
}
});
const error_message = aggregated_errors
.map(
aggregated_errors =>
aggregated_errors.message
)
.reduce((a, b) => `${a} ${b}`);
return Promise.reject(error_message);
}
);
}
});
},
};
return or;
};

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