78 lines
3.0 KiB
TypeScript
78 lines
3.0 KiB
TypeScript
|
// (C) Copyright 2015 Moodle Pty Ltd.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
import { Injectable } from '@angular/core';
|
||
|
|
import { HttpInterceptor, HttpHandler, HttpRequest } from '@angular/common/http';
|
||
|
|
import { Observable } from 'rxjs';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Interceptor for Http calls. Adds the header 'Content-Type'='application/x-www-form-urlencoded'
|
||
|
|
* and serializes the parameters if needed.
|
||
|
|
*/
|
||
|
|
@Injectable()
|
||
|
|
export class CoreInterceptor implements HttpInterceptor {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Serialize an object to be used in a request.
|
||
|
|
*
|
||
|
|
* @param obj Object to serialize.
|
||
|
|
* @param addNull Add null values to the serialized as empty parameters.
|
||
|
|
* @return Serialization of the object.
|
||
|
|
*/
|
||
|
|
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
||
|
|
static serialize(obj: any, addNull?: boolean): string {
|
||
|
|
let query = '';
|
||
|
|
|
||
|
|
for (const name in obj) {
|
||
|
|
const value = obj[name];
|
||
|
|
|
||
|
|
if (value instanceof Array) {
|
||
|
|
for (let i = 0; i < value.length; ++i) {
|
||
|
|
const subValue = value[i];
|
||
|
|
const fullSubName = name + '[' + i + ']';
|
||
|
|
const innerObj = {};
|
||
|
|
innerObj[fullSubName] = subValue;
|
||
|
|
query += this.serialize(innerObj) + '&';
|
||
|
|
}
|
||
|
|
} else if (value instanceof Object) {
|
||
|
|
for (const subName in value) {
|
||
|
|
const subValue = value[subName];
|
||
|
|
const fullSubName = name + '[' + subName + ']';
|
||
|
|
const innerObj = {};
|
||
|
|
innerObj[fullSubName] = subValue;
|
||
|
|
query += this.serialize(innerObj) + '&';
|
||
|
|
}
|
||
|
|
} else if (addNull || (typeof value != 'undefined' && value !== null)) {
|
||
|
|
query += encodeURIComponent(name) + '=' + encodeURIComponent(value) + '&';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return query.length ? query.substr(0, query.length - 1) : query;
|
||
|
|
}
|
||
|
|
|
||
|
|
// eslint-disable-next-line @typescript-eslint/no-explicit-any
|
||
|
|
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<any> {
|
||
|
|
// Add the header and serialize the body if needed.
|
||
|
|
const newReq = req.clone({
|
||
|
|
headers: req.headers.set('Content-Type', 'application/x-www-form-urlencoded'),
|
||
|
|
body: typeof req.body == 'object' && String(req.body) != '[object File]' ?
|
||
|
CoreInterceptor.serialize(req.body) : req.body,
|
||
|
|
});
|
||
|
|
|
||
|
|
// Pass on the cloned request instead of the original request.
|
||
|
|
return next.handle(newReq);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|