forked from Telodendria/Telodendria
385 lines
12 KiB
C
385 lines
12 KiB
C
/*
|
|
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <Matrix.h>
|
|
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
#include <Memory.h>
|
|
#include <HttpServer.h>
|
|
#include <Json.h>
|
|
#include <Str.h>
|
|
|
|
#include <Routes.h>
|
|
|
|
void
|
|
MatrixHttpHandler(HttpServerContext * context, void *argp)
|
|
{
|
|
MatrixHttpHandlerArgs *args = (MatrixHttpHandlerArgs *) argp;
|
|
Stream *stream;
|
|
HashMap *response = NULL;
|
|
|
|
char *key;
|
|
|
|
char *requestPath;
|
|
char *requestPathCpy;
|
|
MATRIX_PATH *pathParts;
|
|
char *pathPart;
|
|
RouteArgs routeArgs;
|
|
|
|
requestPath = HttpRequestPath(context);
|
|
|
|
HttpResponseStatus(context, HTTP_OK);
|
|
HttpResponseHeader(context, "Server", "Telodendria/" TELODENDRIA_VERSION);
|
|
|
|
/* CORS */
|
|
HttpResponseHeader(context, "Access-Control-Allow-Origin", "*");
|
|
HttpResponseHeader(context, "Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
|
|
HttpResponseHeader(context, "Access-Control-Allow-Headers", "X-Requested-With, Content-Type, Authorization");
|
|
|
|
HttpResponseHeader(context, "Connection", "close");
|
|
|
|
/*
|
|
* Web Browser Clients: Servers MUST expect that clients will approach them
|
|
* with OPTIONS requests... the server MUST NOT perform any logic defined
|
|
* for the endpoints when approached with an OPTIONS request.
|
|
*/
|
|
if (HttpRequestMethodGet(context) == HTTP_OPTIONS)
|
|
{
|
|
HttpResponseStatus(context, HTTP_NO_CONTENT);
|
|
HttpSendHeaders(context);
|
|
|
|
return;
|
|
}
|
|
|
|
pathParts = MATRIX_PATH_CREATE();
|
|
requestPathCpy = StrDuplicate(requestPath);
|
|
key = requestPathCpy;
|
|
|
|
while ((pathPart = strtok_r(key, "/", &key)))
|
|
{
|
|
char *decoded = HttpUrlDecode(pathPart);
|
|
|
|
MATRIX_PATH_APPEND(pathParts, decoded);
|
|
}
|
|
|
|
Free(requestPathCpy);
|
|
|
|
routeArgs.matrixArgs = args;
|
|
routeArgs.context = context;
|
|
routeArgs.path = pathParts;
|
|
|
|
pathPart = MATRIX_PATH_POP(pathParts);
|
|
|
|
if (MATRIX_PATH_EQUALS(pathPart, ".well-known"))
|
|
{
|
|
response = RouteWellKnown(&routeArgs);
|
|
}
|
|
else if (MATRIX_PATH_EQUALS(pathPart, "_matrix"))
|
|
{
|
|
response = RouteMatrix(&routeArgs);
|
|
}
|
|
else
|
|
{
|
|
HttpResponseStatus(context, HTTP_NOT_FOUND);
|
|
response = MatrixErrorCreate(M_NOT_FOUND);
|
|
}
|
|
|
|
Free(pathPart);
|
|
|
|
/*
|
|
* If the route handler returned a JSON object, take care
|
|
* of sending it here.
|
|
*
|
|
* Otherwise, if the route handler returned NULL, so assume
|
|
* that it sent its own headers and and body.
|
|
*/
|
|
if (response)
|
|
{
|
|
HttpResponseHeader(context, "Content-Type", "application/json");
|
|
HttpSendHeaders(context);
|
|
|
|
stream = HttpServerStream(context);
|
|
|
|
JsonEncode(response, stream, JSON_DEFAULT);
|
|
JsonFree(response);
|
|
|
|
StreamPrintf(stream, "\n");
|
|
}
|
|
|
|
/*
|
|
* By this point, there should be no path parts remaining, but if
|
|
* there are, free them up now.
|
|
*/
|
|
while ((pathPart = MATRIX_PATH_POP(pathParts)) != NULL)
|
|
{
|
|
Free(pathPart);
|
|
}
|
|
|
|
MATRIX_PATH_FREE(pathParts);
|
|
|
|
Log(LOG_INFO, "%s %s (%d %s)",
|
|
HttpRequestMethodToString(HttpRequestMethodGet(context)),
|
|
requestPath,
|
|
HttpResponseStatusGet(context),
|
|
HttpStatusToString(HttpResponseStatusGet(context)));
|
|
}
|
|
|
|
HashMap *
|
|
MatrixErrorCreate(MatrixError errorArg)
|
|
{
|
|
HashMap *errorObj;
|
|
char *errcode;
|
|
char *error;
|
|
|
|
switch (errorArg)
|
|
{
|
|
case M_FORBIDDEN:
|
|
errcode = "M_FORBIDDEN";
|
|
error = "Forbidden access. Bad permissions or not authenticated.";
|
|
break;
|
|
case M_UNKNOWN_TOKEN:
|
|
errcode = "M_UNKNOWN_TOKEN";
|
|
error = "The access or refresh token specified was not recognized.";
|
|
break;
|
|
case M_MISSING_TOKEN:
|
|
errcode = "M_MISSING_TOKEN";
|
|
error = "No access token was specified for the request.";
|
|
break;
|
|
case M_BAD_JSON:
|
|
errcode = "M_BAD_JSON";
|
|
error = "Request contained valid JSON, but it was malformed in some way.";
|
|
break;
|
|
case M_NOT_JSON:
|
|
errcode = "M_NOT_JSON";
|
|
error = "Request did not contain valid JSON.";
|
|
break;
|
|
case M_NOT_FOUND:
|
|
errcode = "M_NOT_FOUND";
|
|
error = "No resource was found for this request.";
|
|
break;
|
|
case M_LIMIT_EXCEEDED:
|
|
errcode = "M_LIMIT_EXCEEDED";
|
|
error = "Too many requests have been sent in a short period of time. "
|
|
"Wait a while then try again.";
|
|
break;
|
|
case M_UNKNOWN:
|
|
errcode = "M_UNKNOWN";
|
|
error = "An unknown error has occurred.";
|
|
break;
|
|
|
|
case M_UNRECOGNIZED:
|
|
errcode = "M_UNRECOGNIZED";
|
|
error = "The server did not understand the request.";
|
|
break;
|
|
case M_UNAUTHORIZED:
|
|
errcode = "M_UNAUTHORIZED";
|
|
error = "The request was not correctly authorized.";
|
|
break;
|
|
case M_USER_DEACTIVATED:
|
|
errcode = "M_USER_DEACTIVATED";
|
|
error = "The user ID assocated with the request has been deactivated.";
|
|
break;
|
|
case M_USER_IN_USE:
|
|
errcode = "M_USER_IN_USE";
|
|
error = "The user ID specified has already been taken.";
|
|
break;
|
|
case M_INVALID_USERNAME:
|
|
errcode = "M_INVALID_USERNAME";
|
|
error = "The user ID specified is not valid.";
|
|
break;
|
|
case M_ROOM_IN_USE:
|
|
errcode = "M_ROOM_IN_USE";
|
|
error = "The room alias given is already in use.";
|
|
break;
|
|
case M_INVALID_ROOM_STATE:
|
|
errcode = "M_INVALID_ROOM_STATE";
|
|
error = "The initial room state is invalid.";
|
|
break;
|
|
case M_THREEPID_IN_USE:
|
|
errcode = "M_THREEPID_IN_USE";
|
|
error = "The given threepid cannot be used because the same threepid is already in use.";
|
|
break;
|
|
case M_THREEPID_NOT_FOUND:
|
|
errcode = "M_THREEPID_NOT_FOUND";
|
|
error = "The given threepid cannot be used because no record matching the threepid "
|
|
"was found.";
|
|
break;
|
|
case M_THREEPID_AUTH_FAILED:
|
|
errcode = "M_THREEPID_AUTH_FAILED";
|
|
error = "Authentication could not be performed on the third party identifier.";
|
|
break;
|
|
case M_THREEPID_DENIED:
|
|
errcode = "M_THREEPID_DENIED";
|
|
error = "The server does not permit this third party identifier.";
|
|
break;
|
|
case M_SERVER_NOT_TRUSTED:
|
|
errcode = "M_SERVER_NOT_TRUSTED";
|
|
error = "The request used a third party server that this server does not trust.";
|
|
break;
|
|
case M_UNSUPPORTED_ROOM_VERSION:
|
|
errcode = "M_UNSUPPORTED_ROOM_VERSION";
|
|
error = "The request to create a room used a room version that the server "
|
|
"does not support.";
|
|
break;
|
|
case M_INCOMPATIBLE_ROOM_VERSION:
|
|
errcode = "M_INCOMPATIBLE_ROOM_VERSION";
|
|
error = "Attempted to join a room that has a version the server does not support.";
|
|
break;
|
|
case M_BAD_STATE:
|
|
errcode = "M_BAD_STATE";
|
|
error = "The state change requested cannot be performed.";
|
|
break;
|
|
case M_GUEST_ACCESS_FORBIDDEN:
|
|
errcode = "M_GUEST_ACCESS_FORBIDDEN";
|
|
error = "The room or resource does not permit guests to access it.";
|
|
break;
|
|
case M_CAPTCHA_NEEDED:
|
|
errcode = "M_CAPTCHA_NEEDED";
|
|
error = "A Captcha is required to complete the request.";
|
|
break;
|
|
case M_CAPTCHA_INVALID:
|
|
errcode = "M_CAPTCHA_INVALID";
|
|
error = "The Captcha provided did not match what was expected.";
|
|
break;
|
|
case M_MISSING_PARAM:
|
|
errcode = "M_MISSING_PARAM";
|
|
error = "A required parameter was missing from the request.";
|
|
break;
|
|
case M_TOO_LARGE:
|
|
errcode = "M_TOO_LARGE";
|
|
error = "The request or entity was too large.";
|
|
break;
|
|
case M_EXCLUSIVE:
|
|
errcode = "M_EXCLUSIVE";
|
|
error = "The resource being requested is reserved by an application service, "
|
|
"or the application service making the request has not created the resource.";
|
|
break;
|
|
case M_RESOURCE_LIMIT_EXCEEDED:
|
|
errcode = "M_RESOURCE_LIMIT_EXCEEDED";
|
|
error = "The request cannot be completed because the homeserver has reached "
|
|
"a resource limit imposed on it.";
|
|
break;
|
|
case M_CANNOT_LEAVE_SERVER_NOTICE_ROOM:
|
|
errcode = "M_CANNOT_LEAVE_SERVER_NOTICE_ROOM";
|
|
error = "The user is unable to reject an invite to join the server notices room.";
|
|
break;
|
|
default:
|
|
return NULL;
|
|
}
|
|
|
|
errorObj = HashMapCreate();
|
|
if (!errorObj)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
HashMapSet(errorObj, "errcode", JsonValueString(errcode));
|
|
HashMapSet(errorObj, "error", JsonValueString(error));
|
|
|
|
return errorObj;
|
|
}
|
|
|
|
HashMap *
|
|
MatrixGetAccessToken(HttpServerContext * context, char **accessToken)
|
|
{
|
|
HashMap *params;
|
|
char *token;
|
|
|
|
params = HttpRequestHeaders(context);
|
|
token = HashMapGet(params, "authorization");
|
|
|
|
if (token)
|
|
{
|
|
/* If the header was provided but it's not given correctly,
|
|
* that's an error */
|
|
if (strncmp(token, "Bearer ", 7) != 0)
|
|
{
|
|
HttpResponseStatus(context, HTTP_UNAUTHORIZED);
|
|
return MatrixErrorCreate(M_MISSING_TOKEN);
|
|
}
|
|
|
|
/* Seek past "Bearer" */
|
|
token += 7;
|
|
|
|
/* Seek past any spaces between "Bearer" and the token */
|
|
while (*token && isspace((unsigned char) *token))
|
|
{
|
|
token++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Header was not provided, we must check for ?access_token */
|
|
params = HttpRequestParams(context);
|
|
token = HashMapGet(params, "access_token");
|
|
|
|
if (!token)
|
|
{
|
|
HttpResponseStatus(context, HTTP_UNAUTHORIZED);
|
|
return MatrixErrorCreate(M_MISSING_TOKEN);
|
|
}
|
|
}
|
|
|
|
*accessToken = token;
|
|
return NULL;
|
|
}
|
|
|
|
HashMap *
|
|
MatrixRateLimit(HttpServerContext * context, Db * db)
|
|
{
|
|
/* TODO: Implement rate limiting */
|
|
(void) context;
|
|
(void) db;
|
|
return NULL;
|
|
}
|
|
|
|
HashMap *
|
|
MatrixClientWellKnown(char *base, char *identity)
|
|
{
|
|
HashMap *response;
|
|
HashMap *homeserver;
|
|
|
|
if (!base)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
response = HashMapCreate();
|
|
homeserver = HashMapCreate();
|
|
|
|
HashMapSet(homeserver, "base_url", JsonValueString(base));
|
|
HashMapSet(response, "m.homeserver", JsonValueObject(homeserver));
|
|
|
|
if (identity)
|
|
{
|
|
HashMap *identityServer = HashMapCreate();
|
|
|
|
HashMapSet(identityServer, "base_url", JsonValueString(identity));
|
|
HashMapSet(response, "m.identity_server", identityServer);
|
|
}
|
|
|
|
return response;
|
|
}
|