forked from Telodendria/Telodendria
252 lines
8.8 KiB
C
252 lines
8.8 KiB
C
/*
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* Copyright (C) 2022-2024 Jordan Bancino <@jordan:bancino.net> with
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* other valuable contributors. See CONTRIBUTORS.txt for the full list.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <Routes.h>
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#include <Cytoplasm/Memory.h>
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#include <Cytoplasm/Json.h>
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#include <Cytoplasm/Str.h>
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#include <Config.h>
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#include <Parser.h>
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#include <User.h>
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ROUTE_IMPL(RouteAliasDirectory, path, argp)
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{
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RouteArgs *args = argp;
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char *alias = HttpUrlDecode(ArrayGet(path, 0));
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HashMap *request = NULL;
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HashMap *response;
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Db *db = args->matrixArgs->db;
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DbRef *ref = NULL;
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HashMap *aliases;
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HashMap *idObject;
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JsonValue *val;
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Array *arr;
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char *token;
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char *msg;
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User *user = NULL;
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CommonID aliasID;
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CommonID roomID;
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Config *config;
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aliasID.sigil = '\0';
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aliasID.local = NULL;
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aliasID.server.hostname = NULL;
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aliasID.server.port = NULL;
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roomID.sigil = '\0';
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roomID.local = NULL;
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roomID.server.hostname = NULL;
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roomID.server.port = NULL;
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config = ConfigLock(db);
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if (!ParseCommonID(alias, &aliasID) || aliasID.sigil != '#')
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{
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Log(LOG_INFO, "sigil: ' %c '", aliasID.sigil);
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msg = "Invalid room alias.";
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_INVALID_PARAM, msg);
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goto finish;
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}
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ref = DbLock(db, 1, "aliases");
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if (!ref && !(ref = DbCreate(db, 1, "aliases")))
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{
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msg = "Unable to access alias database.",
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HttpResponseStatus(args->context, HTTP_INTERNAL_SERVER_ERROR);
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response = MatrixErrorCreate(M_UNKNOWN, msg);
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goto finish;
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}
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aliases = DbJson(ref);
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switch (HttpRequestMethodGet(args->context))
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{
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case HTTP_GET:
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val = JsonGet(aliases, 2, "alias", alias);
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if (val)
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{
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response = HashMapCreate();
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HashMapSet(response, "room_id", JsonValueDuplicate(HashMapGet(JsonValueAsObject(val), "id")));
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HashMapSet(response, "servers", JsonValueDuplicate(JsonGet(aliases, 3, "alias", alias, "servers")));
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}
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else
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{
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msg = "There is no mapped room ID for this room alias.";
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HttpResponseStatus(args->context, HTTP_NOT_FOUND);
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response = MatrixErrorCreate(M_NOT_FOUND, msg);
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}
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break;
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case HTTP_PUT:
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case HTTP_DELETE:
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response = MatrixGetAccessToken(args->context, &token);
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if (response)
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{
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goto finish;
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}
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user = UserAuthenticate(db, token);
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if (!user)
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{
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_UNKNOWN_TOKEN, NULL);
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goto finish;
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}
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if (HttpRequestMethodGet(args->context) == HTTP_PUT)
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{
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HashMap *newAlias;
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char *id;
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/* Check for server name.
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* TODO: Take the port into account, that might need a
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* refactor for it to use a ServerPart */
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if (!StrEquals(aliasID.server.hostname, config->serverName))
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{
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Log(LOG_INFO, "'%s' != '%s'", aliasID.server.hostname, config->serverName);
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msg = "Invalid server name.";
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_INVALID_PARAM, msg);
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goto finish;
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}
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if (JsonGet(aliases, 2, "alias", alias))
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{
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HttpResponseStatus(args->context, HTTP_CONFLICT);
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response = MatrixErrorCreate(M_UNKNOWN, "Room alias already exists.");
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goto finish;
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}
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request = JsonDecode(HttpServerStream(args->context));
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if (!request)
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{
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_NOT_JSON, NULL);
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goto finish;
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}
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id = JsonValueAsString(HashMapGet(request, "room_id"));
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if (!id)
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{
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_BAD_JSON, "Missing or invalid room_id.");
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goto finish;
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}
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if (!ParseCommonID(id, &roomID) || roomID.sigil != '!')
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{
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msg = "Invalid room ID.";
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_INVALID_PARAM, msg);
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goto finish;
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}
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newAlias = HashMapCreate();
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HashMapSet(newAlias, "createdBy", JsonValueString(UserGetName(user)));
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HashMapSet(newAlias, "id", JsonValueString(id));
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HashMapSet(newAlias, "servers", JsonValueArray(ArrayCreate()));
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JsonSet(aliases, JsonValueObject(newAlias), 2, "alias", alias);
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if (!(idObject = JsonValueAsObject(JsonGet(aliases, 2, "id", id))))
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{
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arr = ArrayCreate();
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idObject = HashMapCreate();
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HashMapSet(idObject, "aliases", JsonValueArray(arr));
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JsonSet(aliases, JsonValueObject(idObject), 2, "id", id);
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}
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val = HashMapGet(idObject, "aliases");
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arr = JsonValueAsArray(val);
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ArrayAdd(arr, JsonValueString(alias));
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}
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else
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{
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HashMap *roomAlias;
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char *id;
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if (!(val = JsonGet(aliases, 2, "alias", alias)))
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{
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HttpResponseStatus(args->context, HTTP_NOT_FOUND);
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response = MatrixErrorCreate(M_NOT_FOUND, "Room alias not found.");
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goto finish;
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}
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roomAlias = JsonValueAsObject(val);
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id = StrDuplicate(JsonValueAsString(HashMapGet(roomAlias, "id")));
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Log(LOG_INFO, "id: %s", id);
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if (!(UserGetPrivileges(user) & USER_ALIAS) && !StrEquals(UserGetName(user), JsonValueAsString(JsonGet(roomAlias, 1, "createdBy"))))
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{
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HttpResponseStatus(args->context, HTTP_UNAUTHORIZED);
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response = MatrixErrorCreate(M_UNAUTHORIZED, NULL);
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Free(id);
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goto finish;
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}
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JsonValueFree(HashMapDelete(JsonValueAsObject(HashMapGet(aliases, "alias")), alias));
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idObject = JsonValueAsObject(JsonGet(aliases, 2, "id", id));
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if (idObject)
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{
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size_t i;
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val = HashMapGet(idObject, "aliases");
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arr = JsonValueAsArray(val);
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for (i = 0; i < ArraySize(arr); i++)
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{
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if (StrEquals(JsonValueAsString(ArrayGet(arr, i)), alias))
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{
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JsonValueFree(ArrayDelete(arr, i));
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break;
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}
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}
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}
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Free(id);
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}
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response = HashMapCreate();
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break;
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default:
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HttpResponseStatus(args->context, HTTP_BAD_REQUEST);
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response = MatrixErrorCreate(M_UNRECOGNIZED, "Unknown request method.");
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goto finish;
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}
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finish:
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CommonIDFree(aliasID);
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CommonIDFree(roomID);
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ConfigUnlock(config);
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UserUnlock(user);
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DbUnlock(db, ref);
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JsonFree(request);
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Free(alias);
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return response;
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}
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