drone-matrix/vendor/github.com/matrix-org/gomatrix/client.go
2018-01-08 09:54:13 +01:00

704 lines
26 KiB
Go

// Package gomatrix implements the Matrix Client-Server API.
//
// Specification can be found at http://matrix.org/docs/spec/client_server/r0.2.0.html
package gomatrix
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"path"
"strconv"
"sync"
"time"
)
// Client represents a Matrix client.
type Client struct {
HomeserverURL *url.URL // The base homeserver URL
Prefix string // The API prefix eg '/_matrix/client/r0'
UserID string // The user ID of the client. Used for forming HTTP paths which use the client's user ID.
AccessToken string // The access_token for the client.
Client *http.Client // The underlying HTTP client which will be used to make HTTP requests.
Syncer Syncer // The thing which can process /sync responses
Store Storer // The thing which can store rooms/tokens/ids
// The ?user_id= query parameter for application services. This must be set *prior* to calling a method. If this is empty,
// no user_id parameter will be sent.
// See http://matrix.org/docs/spec/application_service/unstable.html#identity-assertion
AppServiceUserID string
syncingMutex sync.Mutex // protects syncingID
syncingID uint32 // Identifies the current Sync. Only one Sync can be active at any given time.
}
// HTTPError An HTTP Error response, which may wrap an underlying native Go Error.
type HTTPError struct {
WrappedError error
Message string
Code int
}
func (e HTTPError) Error() string {
var wrappedErrMsg string
if e.WrappedError != nil {
wrappedErrMsg = e.WrappedError.Error()
}
return fmt.Sprintf("msg=%s code=%d wrapped=%s", e.Message, e.Code, wrappedErrMsg)
}
// BuildURL builds a URL with the Client's homserver/prefix/access_token set already.
func (cli *Client) BuildURL(urlPath ...string) string {
ps := []string{cli.Prefix}
for _, p := range urlPath {
ps = append(ps, p)
}
return cli.BuildBaseURL(ps...)
}
// BuildBaseURL builds a URL with the Client's homeserver/access_token set already. You must
// supply the prefix in the path.
func (cli *Client) BuildBaseURL(urlPath ...string) string {
// copy the URL. Purposefully ignore error as the input is from a valid URL already
hsURL, _ := url.Parse(cli.HomeserverURL.String())
parts := []string{hsURL.Path}
parts = append(parts, urlPath...)
hsURL.Path = path.Join(parts...)
query := hsURL.Query()
if cli.AccessToken != "" {
query.Set("access_token", cli.AccessToken)
}
if cli.AppServiceUserID != "" {
query.Set("user_id", cli.AppServiceUserID)
}
hsURL.RawQuery = query.Encode()
return hsURL.String()
}
// BuildURLWithQuery builds a URL with query parameters in addition to the Client's homeserver/prefix/access_token set already.
func (cli *Client) BuildURLWithQuery(urlPath []string, urlQuery map[string]string) string {
u, _ := url.Parse(cli.BuildURL(urlPath...))
q := u.Query()
for k, v := range urlQuery {
q.Set(k, v)
}
u.RawQuery = q.Encode()
return u.String()
}
// SetCredentials sets the user ID and access token on this client instance.
func (cli *Client) SetCredentials(userID, accessToken string) {
cli.AccessToken = accessToken
cli.UserID = userID
}
// ClearCredentials removes the user ID and access token on this client instance.
func (cli *Client) ClearCredentials() {
cli.AccessToken = ""
cli.UserID = ""
}
// Sync starts syncing with the provided Homeserver. If Sync() is called twice then the first sync will be stopped and the
// error will be nil.
//
// This function will block until a fatal /sync error occurs, so it should almost always be started as a new goroutine.
// Fatal sync errors can be caused by:
// - The failure to create a filter.
// - Client.Syncer.OnFailedSync returning an error in response to a failed sync.
// - Client.Syncer.ProcessResponse returning an error.
// If you wish to continue retrying in spite of these fatal errors, call Sync() again.
func (cli *Client) Sync() error {
// Mark the client as syncing.
// We will keep syncing until the syncing state changes. Either because
// Sync is called or StopSync is called.
syncingID := cli.incrementSyncingID()
nextBatch := cli.Store.LoadNextBatch(cli.UserID)
filterID := cli.Store.LoadFilterID(cli.UserID)
if filterID == "" {
filterJSON := cli.Syncer.GetFilterJSON(cli.UserID)
resFilter, err := cli.CreateFilter(filterJSON)
if err != nil {
return err
}
filterID = resFilter.FilterID
cli.Store.SaveFilterID(cli.UserID, filterID)
}
for {
resSync, err := cli.SyncRequest(30000, nextBatch, filterID, false, "")
if err != nil {
duration, err2 := cli.Syncer.OnFailedSync(resSync, err)
if err2 != nil {
return err2
}
time.Sleep(duration)
continue
}
// Check that the syncing state hasn't changed
// Either because we've stopped syncing or another sync has been started.
// We discard the response from our sync.
if cli.getSyncingID() != syncingID {
return nil
}
// Save the token now *before* processing it. This means it's possible
// to not process some events, but it means that we won't get constantly stuck processing
// a malformed/buggy event which keeps making us panic.
cli.Store.SaveNextBatch(cli.UserID, resSync.NextBatch)
if err = cli.Syncer.ProcessResponse(resSync, nextBatch); err != nil {
return err
}
nextBatch = resSync.NextBatch
}
}
func (cli *Client) incrementSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
cli.syncingID++
return cli.syncingID
}
func (cli *Client) getSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
return cli.syncingID
}
// StopSync stops the ongoing sync started by Sync.
func (cli *Client) StopSync() {
// Advance the syncing state so that any running Syncs will terminate.
cli.incrementSyncingID()
}
// MakeRequest makes a JSON HTTP request to the given URL.
// If "resBody" is not nil, the response body will be json.Unmarshalled into it.
//
// Returns the HTTP body as bytes on 2xx with a nil error. Returns an error if the response is not 2xx along
// with the HTTP body bytes if it got that far. This error is an HTTPError which includes the returned
// HTTP status code and possibly a RespError as the WrappedError, if the HTTP body could be decoded as a RespError.
func (cli *Client) MakeRequest(method string, httpURL string, reqBody interface{}, resBody interface{}) ([]byte, error) {
var req *http.Request
var err error
if reqBody != nil {
var jsonStr []byte
jsonStr, err = json.Marshal(reqBody)
if err != nil {
return nil, err
}
req, err = http.NewRequest(method, httpURL, bytes.NewBuffer(jsonStr))
} else {
req, err = http.NewRequest(method, httpURL, nil)
}
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "application/json")
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
contents, err := ioutil.ReadAll(res.Body)
if res.StatusCode/100 != 2 { // not 2xx
var wrap error
var respErr RespError
if _ = json.Unmarshal(contents, &respErr); respErr.ErrCode != "" {
wrap = respErr
}
// If we failed to decode as RespError, don't just drop the HTTP body, include it in the
// HTTP error instead (e.g proxy errors which return HTML).
msg := "Failed to " + method + " JSON to " + req.URL.Path
if wrap == nil {
msg = msg + ": " + string(contents)
}
return contents, HTTPError{
Code: res.StatusCode,
Message: msg,
WrappedError: wrap,
}
}
if err != nil {
return nil, err
}
if resBody != nil {
if err = json.Unmarshal(contents, &resBody); err != nil {
return nil, err
}
}
return contents, nil
}
// CreateFilter makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
func (cli *Client) CreateFilter(filter json.RawMessage) (resp *RespCreateFilter, err error) {
urlPath := cli.BuildURL("user", cli.UserID, "filter")
_, err = cli.MakeRequest("POST", urlPath, &filter, &resp)
return
}
// SyncRequest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
func (cli *Client) SyncRequest(timeout int, since, filterID string, fullState bool, setPresence string) (resp *RespSync, err error) {
query := map[string]string{
"timeout": strconv.Itoa(timeout),
}
if since != "" {
query["since"] = since
}
if filterID != "" {
query["filter"] = filterID
}
if setPresence != "" {
query["set_presence"] = setPresence
}
if fullState {
query["full_state"] = "true"
}
urlPath := cli.BuildURLWithQuery([]string{"sync"}, query)
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func (cli *Client) register(u string, req *ReqRegister) (resp *RespRegister, uiaResp *RespUserInteractive, err error) {
var bodyBytes []byte
bodyBytes, err = cli.MakeRequest("POST", u, req, nil)
if err != nil {
httpErr, ok := err.(HTTPError)
if !ok { // network error
return
}
if httpErr.Code == 401 {
// body should be RespUserInteractive, if it isn't, fail with the error
err = json.Unmarshal(bodyBytes, &uiaResp)
return
}
return
}
// body should be RespRegister
err = json.Unmarshal(bodyBytes, &resp)
return
}
// Register makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
//
// Registers with kind=user. For kind=guest, see RegisterGuest.
func (cli *Client) Register(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
u := cli.BuildURL("register")
return cli.register(u, req)
}
// RegisterGuest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
// with kind=guest.
//
// For kind=user, see Register.
func (cli *Client) RegisterGuest(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
query := map[string]string{
"kind": "guest",
}
u := cli.BuildURLWithQuery([]string{"register"}, query)
return cli.register(u, req)
}
// RegisterDummy performs m.login.dummy registration according to https://matrix.org/docs/spec/client_server/r0.2.0.html#dummy-auth
//
// Only a username and password need to be provided on the ReqRegister struct. Most local/developer homeservers will allow registration
// this way. If the homeserver does not, an error is returned.
//
// This does not set credentials on the client instance. See SetCredentials() instead.
//
// res, err := cli.RegisterDummy(&gomatrix.ReqRegister{
// Username: "alice",
// Password: "wonderland",
// })
// if err != nil {
// panic(err)
// }
// token := res.AccessToken
func (cli *Client) RegisterDummy(req *ReqRegister) (*RespRegister, error) {
res, uia, err := cli.Register(req)
if err != nil && uia == nil {
return nil, err
}
if uia != nil && uia.HasSingleStageFlow("m.login.dummy") {
req.Auth = struct {
Type string `json:"type"`
Session string `json:"session,omitempty"`
}{"m.login.dummy", uia.Session}
res, _, err = cli.Register(req)
if err != nil {
return nil, err
}
}
if res == nil {
return nil, fmt.Errorf("registration failed: does this server support m.login.dummy?")
}
return res, nil
}
// Login a user to the homeserver according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
// This does not set credentials on this client instance. See SetCredentials() instead.
func (cli *Client) Login(req *ReqLogin) (resp *RespLogin, err error) {
urlPath := cli.BuildURL("login")
_, err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// Logout the current user. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-logout
// This does not clear the credentials from the client instance. See ClearCredentials() instead.
func (cli *Client) Logout() (resp *RespLogout, err error) {
urlPath := cli.BuildURL("logout")
_, err = cli.MakeRequest("POST", urlPath, nil, &resp)
return
}
// Versions returns the list of supported Matrix versions on this homeserver. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
func (cli *Client) Versions() (resp *RespVersions, err error) {
urlPath := cli.BuildBaseURL("_matrix", "client", "versions")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// JoinRoom joins the client to a room ID or alias. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-join-roomidoralias
//
// If serverName is specified, this will be added as a query param to instruct the homeserver to join via that server. If content is specified, it will
// be JSON encoded and used as the request body.
func (cli *Client) JoinRoom(roomIDorAlias, serverName string, content interface{}) (resp *RespJoinRoom, err error) {
var urlPath string
if serverName != "" {
urlPath = cli.BuildURLWithQuery([]string{"join", roomIDorAlias}, map[string]string{
"server_name": serverName,
})
} else {
urlPath = cli.BuildURL("join", roomIDorAlias)
}
_, err = cli.MakeRequest("POST", urlPath, content, &resp)
return
}
// GetDisplayName returns the display name of the user from the specified MXID. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetDisplayName(mxid string) (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", mxid, "displayname")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// GetOwnDisplayName returns the user's display name. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetOwnDisplayName() (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// SetDisplayName sets the user's profile display name. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-displayname
func (cli *Client) SetDisplayName(displayName string) (err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
s := struct {
DisplayName string `json:"displayname"`
}{displayName}
_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
return
}
// GetAvatarURL gets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) GetAvatarURL() (url string, err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{}
_, err = cli.MakeRequest("GET", urlPath, nil, &s)
if err != nil {
return "", err
}
return s.AvatarURL, nil
}
// SetAvatarURL sets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) SetAvatarURL(url string) (err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{url}
_, err = cli.MakeRequest("PUT", urlPath, &s, nil)
if err != nil {
return err
}
return nil
}
// SendMessageEvent sends a message event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON interface{}) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "send", eventType, txnID)
_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendStateEvent sends a state event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-state-eventtype-statekey
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendStateEvent(roomID, eventType, stateKey string, contentJSON interface{}) (resp *RespSendEvent, err error) {
urlPath := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
_, err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendText sends an m.room.message event into the given room with a msgtype of m.text
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-text
func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{"m.text", text})
}
// SendImage sends an m.room.message event into the given room with a msgtype of m.image
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
func (cli *Client) SendImage(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
ImageMessage{
MsgType: "m.image",
Body: body,
URL: url,
})
}
// SendVideo sends an m.room.message event into the given room with a msgtype of m.video
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
func (cli *Client) SendVideo(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
VideoMessage{
MsgType: "m.video",
Body: body,
URL: url,
})
}
// SendNotice sends an m.room.message event into the given room with a msgtype of m.notice
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-notice
func (cli *Client) SendNotice(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{"m.notice", text})
}
// RedactEvent redacts the given event. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
func (cli *Client) RedactEvent(roomID, eventID string, req *ReqRedact) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "redact", eventID, txnID)
_, err = cli.MakeRequest("PUT", urlPath, req, &resp)
return
}
// CreateRoom creates a new Matrix room. See https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
// resp, err := cli.CreateRoom(&gomatrix.ReqCreateRoom{
// Preset: "public_chat",
// })
// fmt.Println("Room:", resp.RoomID)
func (cli *Client) CreateRoom(req *ReqCreateRoom) (resp *RespCreateRoom, err error) {
urlPath := cli.BuildURL("createRoom")
_, err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// LeaveRoom leaves the given room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
func (cli *Client) LeaveRoom(roomID string) (resp *RespLeaveRoom, err error) {
u := cli.BuildURL("rooms", roomID, "leave")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// ForgetRoom forgets a room entirely. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
func (cli *Client) ForgetRoom(roomID string) (resp *RespForgetRoom, err error) {
u := cli.BuildURL("rooms", roomID, "forget")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// InviteUser invites a user to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
func (cli *Client) InviteUser(roomID string, req *ReqInviteUser) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
_, err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// InviteUserByThirdParty invites a third-party identifier to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#invite-by-third-party-id-endpoint
func (cli *Client) InviteUserByThirdParty(roomID string, req *ReqInvite3PID) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// KickUser kicks a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
func (cli *Client) KickUser(roomID string, req *ReqKickUser) (resp *RespKickUser, err error) {
u := cli.BuildURL("rooms", roomID, "kick")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// BanUser bans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
func (cli *Client) BanUser(roomID string, req *ReqBanUser) (resp *RespBanUser, err error) {
u := cli.BuildURL("rooms", roomID, "ban")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UnbanUser unbans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
func (cli *Client) UnbanUser(roomID string, req *ReqUnbanUser) (resp *RespUnbanUser, err error) {
u := cli.BuildURL("rooms", roomID, "unban")
_, err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UserTyping sets the typing status of the user. See https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
func (cli *Client) UserTyping(roomID string, typing bool, timeout int64) (resp *RespTyping, err error) {
req := ReqTyping{Typing: typing, Timeout: timeout}
u := cli.BuildURL("rooms", roomID, "typing", cli.UserID)
_, err = cli.MakeRequest("PUT", u, req, &resp)
return
}
// StateEvent gets a single state event in a room. It will attempt to JSON unmarshal into the given "outContent" struct with
// the HTTP response body, or return an error.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-state-eventtype-statekey
func (cli *Client) StateEvent(roomID, eventType, stateKey string, outContent interface{}) (err error) {
u := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
_, err = cli.MakeRequest("GET", u, nil, outContent)
return
}
// UploadLink uploads an HTTP URL and then returns an MXC URI.
func (cli *Client) UploadLink(link string) (*RespMediaUpload, error) {
res, err := cli.Client.Get(link)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
return cli.UploadToContentRepo(res.Body, res.Header.Get("Content-Type"), res.ContentLength)
}
// UploadToContentRepo uploads the given bytes to the content repository and returns an MXC URI.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
func (cli *Client) UploadToContentRepo(content io.Reader, contentType string, contentLength int64) (*RespMediaUpload, error) {
req, err := http.NewRequest("POST", cli.BuildBaseURL("_matrix/media/r0/upload"), content)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", contentType)
req.ContentLength = contentLength
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
if res.StatusCode != 200 {
contents, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, HTTPError{
Message: "Upload request failed - Failed to read response body: " + err.Error(),
Code: res.StatusCode,
}
}
return nil, HTTPError{
Message: "Upload request failed: " + string(contents),
Code: res.StatusCode,
}
}
var m RespMediaUpload
if err := json.NewDecoder(res.Body).Decode(&m); err != nil {
return nil, err
}
return &m, nil
}
// JoinedMembers returns a map of joined room members. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined members in a room.
func (cli *Client) JoinedMembers(roomID string) (resp *RespJoinedMembers, err error) {
u := cli.BuildURL("rooms", roomID, "joined_members")
_, err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// JoinedRooms returns a list of rooms which the client is joined to. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined rooms.
func (cli *Client) JoinedRooms() (resp *RespJoinedRooms, err error) {
u := cli.BuildURL("joined_rooms")
_, err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// Messages returns a list of message and state events for a room. It uses
// pagination query parameters to paginate history in the room.
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
func (cli *Client) Messages(roomID, from, to string, dir rune, limit int) (resp *RespMessages, err error) {
query := map[string]string{
"from": from,
"dir": string(dir),
}
if to != "" {
query["to"] = to
}
if limit != 0 {
query["limit"] = strconv.Itoa(limit)
}
urlPath := cli.BuildURLWithQuery([]string{"rooms", roomID, "messages"}, query)
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// TurnServer returns turn server details and credentials for the client to use when initiating calls.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-voip-turnserver
func (cli *Client) TurnServer() (resp *RespTurnServer, err error) {
urlPath := cli.BuildURL("voip", "turnServer")
_, err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func txnID() string {
return "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
}
// NewClient creates a new Matrix Client ready for syncing
func NewClient(homeserverURL, userID, accessToken string) (*Client, error) {
hsURL, err := url.Parse(homeserverURL)
if err != nil {
return nil, err
}
// By default, use an in-memory store which will never save filter ids / next batch tokens to disk.
// The client will work with this storer: it just won't remember across restarts.
// In practice, a database backend should be used.
store := NewInMemoryStore()
cli := Client{
AccessToken: accessToken,
HomeserverURL: hsURL,
UserID: userID,
Prefix: "/_matrix/client/r0",
Syncer: NewDefaultSyncer(userID, store),
Store: store,
}
// By default, use the default HTTP client.
cli.Client = http.DefaultClient
return &cli, nil
}