add matterbridge

8 files changed, 1101 insertions, 0 deletions

diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/LICENSE b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/LICENSE
new file mode 100644
index 0000000..8f71f43
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/LICENSE
@@ -0,0 +1,202 @@
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/constants/constants.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/constants/constants.go
new file mode 100644
index 0000000..4447354
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/constants/constants.go
@@ -0,0 +1,25 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package constants
+
+const (
+	// BaseEndpoint is the api endpoint for Nextcloud Talk
+	BaseEndpoint = "/ocs/v2.php/apps/spreed/api/v1/"
+)
+
+// RemoteDavEndpoint returns the endpoint for the Dav API for Nextcloud
+func RemoteDavEndpoint(username string, davType string) string {
+	return "/remote.php/dav/" + davType + "/" + username + "/"
+}
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/capabilities.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/capabilities.go
new file mode 100644
index 0000000..8b2919f
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/capabilities.go
@@ -0,0 +1,46 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package ocs
+
+// Capabilities describes the response from the capabilities request
+type Capabilities struct {
+	ocs
+	Data struct {
+		Capabilities struct {
+			SpreedCapabilities SpreedCapabilities `json:"spreed"`
+		} `json:"capabilities"`
+	} `json:"data"`
+}
+
+// SpreedCapabilities describes the Nextcloud Talk capabilities response
+type SpreedCapabilities struct {
+	Features []string `json:"features"`
+	Config   struct {
+		Attachments struct {
+			Allowed bool   `json:"allowed"`
+			Folder  string `json:"folder"`
+		} `json:"attachments"`
+		Chat struct {
+			MaxLength   int `json:"max-length"`
+			ReadPrivacy int `json:"read-privacy"`
+		} `json:"chat"`
+		Conversations struct {
+			CanCreate bool `json:"can-create"`
+		} `json:"conversations"`
+		Previews struct {
+			MaxGifSize int `json:"max-gif-size"`
+		} `json:"previews"`
+	} `json:"config"`
+}
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/message.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/message.go
new file mode 100644
index 0000000..1a8f95d
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/message.go
@@ -0,0 +1,177 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package ocs
+
+import (
+	"encoding/json"
+	"strings"
+)
+
+// MessageType describes what kind of message a returned Nextcloud Talk message is
+type MessageType string
+
+// ActorType describes what kind of actor a returned Nextcloud Talk message is from
+type ActorType string
+
+const (
+	// MessageComment is a Nextcloud Talk message that is a comment
+	MessageComment MessageType = "comment"
+
+	// MessageSystem is a Nextcloud Talk message that is a system
+	MessageSystem MessageType = "system"
+
+	// MessageCommand is a Nextcloud Talk message that is a command
+	MessageCommand MessageType = "command"
+
+	// MessageDelete is a Nextcloud Talk message indicating a message that was deleted
+	//
+	// If a message has been deleted, a message of MessageType MessageSystem is
+	// sent through the channel for which the parent message's MessageType is MessageDelete.
+	// So, in order to check if a new message is a message deletion request, a check
+	// like this can be used:
+	// msg.MessageType == ocs.MessageSystem && msg.Parent != nil && msg.Parent.MessageType == ocs.MessageDelete
+	MessageDelete MessageType = "comment_deleted"
+
+	// ActorUser is a Nextcloud Talk message sent by a user
+	ActorUser ActorType = "users"
+
+	// ActorGuest is a Nextcloud Talk message sent by a guest
+	ActorGuest ActorType = "guests"
+)
+
+// TalkRoomMessageData describes the data part of a ocs response for a Talk room message
+//
+// Error will be set if a message request ran into an error.
+type TalkRoomMessageData struct {
+	Error             error                       `json:"-"`
+	Message           string                      `json:"message"`
+	ID                int                         `json:"id"`
+	ActorType         ActorType                   `json:"actorType"`
+	ActorID           string                      `json:"actorId"`
+	ActorDisplayName  string                      `json:"actorDisplayName"`
+	SystemMessage     string                      `json:"systemMessage"`
+	Timestamp         int                         `json:"timestamp"`
+	MessageType       MessageType                 `json:"messageType"`
+	Deleted           bool                        `json:"deleted"`
+	Parent            *TalkRoomMessageData        `json:"parent"`
+	MessageParameters map[string]RichObjectString `json:"-"`
+}
+
+// talkRoomMessageParameters is used to unmarshal only MessageParameters
+type talkRoomMessageParameters struct {
+	MessageParameters map[string]RichObjectString `json:"messageParameters"`
+}
+
+// PlainMessage returns the message string with placeholders replaced
+//
+// * User and group placeholders will be replaced with the name of the user or group respectively.
+//
+// * File placeholders will be replaced with the name of the file.
+func (m *TalkRoomMessageData) PlainMessage() string {
+	tr := m.Message
+	for key, value := range m.MessageParameters {
+		tr = strings.ReplaceAll(tr, "{"+key+"}", value.Name)
+	}
+	return tr
+}
+
+// DisplayName returns the display name for the sender of the message (" (Guest)" is appended if sent by a guest user)
+func (m *TalkRoomMessageData) DisplayName() string {
+	if m.ActorType == ActorGuest {
+		if m.ActorDisplayName == "" {
+			return "Guest"
+		}
+		return m.ActorDisplayName + " (Guest)"
+	}
+	return m.ActorDisplayName
+}
+
+// TalkRoomMessage describes an ocs response for a Talk room message
+type TalkRoomMessage struct {
+	OCS talkRoomMessage `json:"ocs"`
+}
+
+type talkRoomMessage struct {
+	ocs
+	TalkRoomMessage []TalkRoomMessageData `json:"data"`
+}
+
+// TalkRoomMessageDataUnmarshal unmarshals given ocs request data and returns a TalkRoomMessageData
+func TalkRoomMessageDataUnmarshal(data *[]byte) (*TalkRoomMessage, error) {
+	message := &TalkRoomMessage{}
+	err := json.Unmarshal(*data, message)
+	if err != nil {
+		return nil, err
+	}
+
+	// Get RCS
+	var rcs struct {
+		OCS struct {
+			ocs
+			TalkRoomMessage []talkRoomMessageParameters `json:"data"`
+		} `json:"ocs"`
+	}
+	err = json.Unmarshal(*data, &rcs)
+	// There is no RCS data
+	if err != nil {
+		for i := range message.OCS.TalkRoomMessage {
+			message.OCS.TalkRoomMessage[i].MessageParameters = map[string]RichObjectString{}
+		}
+		return message, nil
+	}
+
+	// There is RCS data
+	for i := range message.OCS.TalkRoomMessage {
+		message.OCS.TalkRoomMessage[i].MessageParameters = rcs.OCS.TalkRoomMessage[i].MessageParameters
+	}
+	return message, nil
+}
+
+// TalkRoomSentResponse describes an ocs response for what is returned when a message is sent
+type TalkRoomSentResponse struct {
+	OCS talkRoomSentResponse `json:"ocs"`
+}
+
+type talkRoomSentResponse struct {
+	ocs
+	TalkRoomMessage TalkRoomMessageData `json:"data"`
+}
+
+// TalkRoomSentResponseUnmarshal unmarshals given ocs request data and returns a TalkRoomMessageData
+func TalkRoomSentResponseUnmarshal(data *[]byte) (*TalkRoomSentResponse, error) {
+	message := &TalkRoomSentResponse{}
+	err := json.Unmarshal(*data, message)
+	if err != nil {
+		return nil, err
+	}
+
+	// Get RCS
+	var rcs struct {
+		OCS struct {
+			ocs
+			TalkRoomMessage talkRoomMessageParameters `json:"data"`
+		} `json:"ocs"`
+	}
+	err = json.Unmarshal(*data, &rcs)
+	// There is no RCS data
+	if err != nil {
+		message.OCS.TalkRoomMessage.MessageParameters = map[string]RichObjectString{}
+		return message, nil
+	}
+
+	// There is RCS data
+	message.OCS.TalkRoomMessage.MessageParameters = rcs.OCS.TalkRoomMessage.MessageParameters
+	return message, nil
+}
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ocs.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ocs.go
new file mode 100644
index 0000000..28607b6
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ocs.go
@@ -0,0 +1,25 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package ocs
+
+type ocs struct {
+	OCSMeta ocsMeta `json:"meta"`
+}
+
+type ocsMeta struct {
+	Status     string `json:"status"`
+	StatusCode int    `json:"statuscode"`
+	Message    string `json:"message"`
+}
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ros.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ros.go
new file mode 100644
index 0000000..82f72bb
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/ocs/ros.go
@@ -0,0 +1,38 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+// File describes Nextcloud's Rich Object Strings (https://github.com/nextcloud/server/issues/1706)
+
+package ocs
+
+// RichObjectString describes the content of placeholders in TalkRoomMessageData
+type RichObjectString struct {
+	Type RichObjectStringType `json:"type"`
+	ID   string               `json:"id"`
+	Name string               `json:"name"`
+	Path string               `json:"path"`
+	Link string               `json:"link"`
+}
+
+// RichObjectStringType describes what a rich object string is describing
+type RichObjectStringType string
+
+const (
+	// ROSTypeUser describes a rich object string that is a user
+	ROSTypeUser RichObjectStringType = "user"
+	// ROSTypeGroup describes a rich object string that is a group
+	ROSTypeGroup RichObjectStringType = "group"
+	// ROSTypeFile describes a rich object string that is a file
+	ROSTypeFile RichObjectStringType = "file"
+)
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/room/room.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/room/room.go
new file mode 100644
index 0000000..9e94f9d
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/room/room.go
@@ -0,0 +1,267 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package room
+
+import (
+	"context"
+	"errors"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/monaco-io/request"
+
+	"gomod.garykim.dev/nc-talk/constants"
+	"gomod.garykim.dev/nc-talk/ocs"
+	"gomod.garykim.dev/nc-talk/user"
+)
+
+var (
+	// ErrEmptyToken is returned when the room token is empty
+	ErrEmptyToken = errors.New("given an empty token")
+	// ErrRoomNotFound is returned when a room with the given token could not be found
+	ErrRoomNotFound = errors.New("room could not be found")
+	// ErrUnauthorized is returned when the room could not be accessed due to being unauthorized
+	ErrUnauthorized = errors.New("unauthorized error when accessing room")
+	// ErrNotModeratorInLobby is returned when the room is in lobby mode but the user is not a moderator
+	ErrNotModeratorInLobby = errors.New("room is in lobby mode but user is not a moderator")
+	// ErrUnexpectedReturnCode is returned when the server did not respond with an expected return code
+	ErrUnexpectedReturnCode = errors.New("unexpected return code")
+	// ErrTooManyRequests is returned if the server returns a 429
+	ErrTooManyRequests = errors.New("too many requests")
+	// ErrLackingCapabilities is returned if the server lacks the required capability for the given function
+	ErrLackingCapabilities = errors.New("lacking required capabilities")
+	// ErrForbidden is returned if the user is forbidden from accessing the requested resource
+	ErrForbidden = errors.New("request forbidden")
+	// ErrUnexpectedResponse is returned if the response from the Nextcloud Talk server is not formatted as expected
+	ErrUnexpectedResponse = errors.New("unexpected response")
+)
+
+// TalkRoom represents a room in Nextcloud Talk
+type TalkRoom struct {
+	User  *user.TalkUser
+	Token string
+}
+
+// Message represents a message to be sent
+type Message struct {
+	Message          string
+	ActorDisplayName string
+	ReplyTo          int
+}
+
+func (t *Message) toParameters() map[string]string {
+	return map[string]string{
+		"message":          t.Message,
+		"actorDisplayName": t.ActorDisplayName,
+		"replyTo":          strconv.Itoa(t.ReplyTo),
+	}
+}
+
+// NewTalkRoom returns a new TalkRoom instance
+// Token should be the Nextcloud Room Token (e.g. "d6zoa2zs" if the room URL is https://cloud.mydomain.me/call/d6zoa2zs)
+func NewTalkRoom(tuser *user.TalkUser, token string) (*TalkRoom, error) {
+	if token == "" {
+		return nil, ErrEmptyToken
+	}
+	if tuser == nil {
+		return nil, user.ErrUserIsNil
+	}
+	return &TalkRoom{
+		User:  tuser,
+		Token: token,
+	}, nil
+}
+
+// SendMessage sends a string message in the Talk room
+func (t *TalkRoom) SendMessage(msg string) (*ocs.TalkRoomMessageData, error) {
+	return t.SendComplexMessage(&Message{Message: msg})
+}
+
+// SendComplexMessage sends a Message type message in the talk room
+func (t *TalkRoom) SendComplexMessage(msg *Message) (*ocs.TalkRoomMessageData, error) {
+	url := t.User.NextcloudURL + constants.BaseEndpoint + "chat/" + t.Token
+
+	client := t.User.RequestClient(request.Client{
+		URL:    url,
+		Method: "POST",
+		Params: msg.toParameters(),
+	})
+	res, err := client.Do()
+	if err != nil {
+		return nil, err
+	}
+	if res.StatusCode() != 201 {
+		return nil, ErrUnexpectedReturnCode
+	}
+	msgInfo, err := ocs.TalkRoomSentResponseUnmarshal(&res.Data)
+	if err != nil {
+		return nil, err
+	}
+	return &msgInfo.OCS.TalkRoomMessage, err
+}
+
+// DeleteMessage deletes the message with the given messageID on the server.
+//
+// Requires "delete-messages" capability on the Nextcloud Talk server
+func (t *TalkRoom) DeleteMessage(messageID int) (*ocs.TalkRoomMessageData, error) {
+	// Check for required capability
+	capable, err := t.User.Capabilities()
+	if err != nil {
+		return nil, err
+	}
+	if !capable.DeleteMessages {
+		return nil, ErrLackingCapabilities
+	}
+
+	url := t.User.NextcloudURL + constants.BaseEndpoint + "/chat/" + t.Token + "/" + strconv.Itoa(messageID)
+
+	client := t.User.RequestClient(request.Client{
+		URL:    url,
+		Method: "DELETE",
+	})
+	res, err := client.Do()
+	if err != nil {
+		return nil, err
+	}
+	if res.StatusCode() != http.StatusOK && res.StatusCode() != http.StatusAccepted {
+		return nil, ErrUnexpectedReturnCode
+	}
+	msgInfo, err := ocs.TalkRoomSentResponseUnmarshal(&res.Data)
+	if err != nil {
+		return nil, err
+	}
+	return &msgInfo.OCS.TalkRoomMessage, nil
+}
+
+// ReceiveMessages starts watching for new messages
+func (t *TalkRoom) ReceiveMessages(ctx context.Context) (chan ocs.TalkRoomMessageData, error) {
+	c := make(chan ocs.TalkRoomMessageData)
+	err := t.TestConnection()
+	if err != nil {
+		return nil, err
+	}
+	url := t.User.NextcloudURL + constants.BaseEndpoint + "chat/" + t.Token
+	requestParam := map[string]string{
+		"lookIntoFuture":   "1",
+		"includeLastKnown": "0",
+	}
+	lastKnown := ""
+	res, err := t.User.GetRooms()
+	if err != nil {
+		return nil, err
+	}
+	for _, r := range *res {
+		if r.Token == t.Token {
+			lastKnown = strconv.Itoa(r.LastReadMessage)
+			break
+		}
+	}
+	go func() {
+		for {
+			if ctx.Err() != nil {
+				return
+			}
+			if lastKnown != "" {
+				requestParam["lastKnownMessageId"] = lastKnown
+			}
+			client := t.User.RequestClient(request.Client{
+				URL:     url,
+				Params:  requestParam,
+				Timeout: time.Second * 60,
+			})
+
+			res, err := client.Resp()
+			if err != nil {
+				continue
+			}
+
+			// If it seems that we no longer have access to the chat for one reason or another, stop the goroutine and set error in the next return.
+			if res.StatusCode == http.StatusNotFound {
+				_ = res.Body.Close()
+				c <- ocs.TalkRoomMessageData{Error: ErrRoomNotFound}
+				return
+			}
+			if res.StatusCode == http.StatusUnauthorized {
+				_ = res.Body.Close()
+				c <- ocs.TalkRoomMessageData{Error: ErrUnauthorized}
+				return
+			}
+			if res.StatusCode == http.StatusTooManyRequests {
+				_ = res.Body.Close()
+				c <- ocs.TalkRoomMessageData{Error: ErrTooManyRequests}
+				return
+			}
+			if res.StatusCode == http.StatusForbidden {
+				_ = res.Body.Close()
+				c <- ocs.TalkRoomMessageData{Error: ErrForbidden}
+				return
+			}
+
+			if res.StatusCode == http.StatusOK {
+				lastKnown = res.Header.Get("X-Chat-Last-Given")
+				data, err := ioutil.ReadAll(res.Body)
+				_ = res.Body.Close()
+				if err != nil {
+					continue
+				}
+				message, err := ocs.TalkRoomMessageDataUnmarshal(&data)
+				if err != nil {
+					continue
+				}
+				for _, msg := range message.OCS.TalkRoomMessage {
+					c <- msg
+				}
+				continue
+			}
+			_ = res.Body.Close()
+		}
+	}()
+	return c, nil
+}
+
+// TestConnection tests the connection with the Nextcloud Talk instance and returns an error if it could not connect
+func (t *TalkRoom) TestConnection() error {
+	if t.Token == "" {
+		return ErrEmptyToken
+	}
+	url := t.User.NextcloudURL + constants.BaseEndpoint + "chat/" + t.Token
+	requestParam := map[string]string{
+		"lookIntoFuture":   "0",
+		"includeLastKnown": "0",
+	}
+	client := t.User.RequestClient(request.Client{
+		URL:     url,
+		Params:  requestParam,
+		Timeout: time.Second * 30,
+	})
+
+	res, err := client.Do()
+	if err != nil {
+		return err
+	}
+	switch res.StatusCode() {
+	case http.StatusOK:
+		return nil
+	case http.StatusNotModified:
+		return nil
+	case http.StatusNotFound:
+		return ErrRoomNotFound
+	case http.StatusPreconditionFailed:
+		return ErrNotModeratorInLobby
+	}
+	return ErrUnexpectedReturnCode
+}
diff --git a/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/user/user.go b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/user/user.go
new file mode 100644
index 0000000..e557cff
--- /dev/null
+++ b/teleirc/matterbridge/vendor/gomod.garykim.dev/nc-talk/user/user.go
@@ -0,0 +1,321 @@
+// Copyright (c) 2020 Gary Kim <gary@garykim.dev>, All Rights Reserved
+//
+// 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.
+
+package user
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"errors"
+	"strings"
+
+	"github.com/monaco-io/request"
+
+	"gomod.garykim.dev/nc-talk/constants"
+	"gomod.garykim.dev/nc-talk/ocs"
+)
+
+const (
+	ocsCapabilitiesEndpoint = "/ocs/v2.php/cloud/capabilities"
+	ocsRoomsv2Endpoint      = "/ocs/v2.php/apps/spreed/api/v2/room"
+	ocsRoomsv4Endpoint      = "/ocs/v2.php/apps/spreed/api/v4/room"
+)
+
+var (
+	// ErrUserIsNil is returned when a function is called with an nil user.
+	ErrUserIsNil = errors.New("user is nil")
+
+	// ErrCannotDownloadFile is returned when a function cannot download the requested file
+	ErrCannotDownloadFile = errors.New("cannot download file")
+)
+
+// TalkUser represents a user of Nextcloud Talk
+type TalkUser struct {
+	User         string
+	Pass         string
+	NextcloudURL string
+	Config       *TalkUserConfig
+	capabilities *Capabilities
+}
+
+// TalkUserConfig is configuration options for TalkUsers
+type TalkUserConfig struct {
+	TLSConfig *tls.Config
+}
+
+// Capabilities describes the capabilities that the Nextcloud Talk instance is capable of. Visit https://nextcloud-talk.readthedocs.io/en/latest/capabilities/ for more info.
+type Capabilities struct {
+	AttachmentsFolder      string `ocscapability:"config => attachments => folder"`
+	Audio                  bool   `ocscapability:"audio"`
+	Video                  bool   `ocscapability:"video"`
+	Chat                   bool   `ocscapability:"chat"`
+	GuestSignaling         bool   `ocscapability:"guest-signaling"`
+	EmptyGroupRoom         bool   `ocscapability:"empty-group-room"`
+	GuestDisplayNames      bool   `ocscapability:"guest-display-names"`
+	MultiRoomUsers         bool   `ocscapability:"multi-room-users"`
+	ChatV2                 bool   `ocscapability:"chat-v2"`
+	Favorites              bool   `ocscapability:"favorites"`
+	LastRoomActivity       bool   `ocscapability:"last-room-activity"`
+	NoPing                 bool   `ocscapability:"no-ping"`
+	SystemMessages         bool   `ocscapability:"system-messages"`
+	MentionFlag            bool   `ocscapability:"mention-flag"`
+	InCallFlags            bool   `ocscapability:"in-call-flags"`
+	InviteByMail           bool   `ocscapability:"invite-by-mail"`
+	NotificationLevels     bool   `ocscapability:"notification-levels"`
+	InviteGroupsAndMails   bool   `ocscapability:"invite-groups-and-mails"`
+	LockedOneToOneRooms    bool   `ocscapability:"locked-one-to-one-rooms"`
+	ReadOnlyRooms          bool   `ocscapability:"read-only-rooms"`
+	ChatReadMarker         bool   `ocscapability:"chat-read-marker"`
+	WebinaryLobby          bool   `ocscapability:"webinary-lobby"`
+	StartCallFlag          bool   `ocscapability:"start-call-flag"`
+	ChatReplies            bool   `ocscapability:"chat-replies"`
+	CirclesSupport         bool   `ocscapability:"circles-support"`
+	AttachmentsAllowed     bool   `ocscapability:"config => attachments => allowed"`
+	ConversationsCanCreate bool   `ocscapability:"config => conversations => can-create"`
+	ForceMute              bool   `ocscapability:"force-mute"`
+	ConversationV2         bool   `ocscapability:"conversation-v2"`
+	ChatReferenceID        bool   `ocscapability:"chat-reference-id"`
+	ConversationV3         bool   `ocscapability:"conversation-v3"`
+	ConversationV4         bool   `ocscapability:"conversation-v4"`
+	SIPSupport             bool   `ocscapability:"sip-support"`
+	ChatReadStatus         bool   `ocscapability:"chat-read-status"`
+	ListableRooms          bool   `ocscapability:"listable-rooms"`
+	PhonebookSearch        bool   `ocscapability:"phonebook-search"`
+	RaiseHand              bool   `ocscapability:"raise-hand"`
+	RoomDescription        bool   `ocscapability:"room-description"`
+	DeleteMessages         bool   `ocscapability:"delete-messages"`
+	RichObjectSharing      bool   `ocscapability:"rich-object-sharing"`
+	ConversationCallFlags  bool   `ocscapability:"conversation-call-flags"`
+	GeoLocationSharing     bool   `ocscapability:"geo-location-sharing"`
+	ReadPrivacyConfig      bool   `ocscapability:"config => chat => read-privacy"`
+	SignalingV3            bool   `ocscapability:"signaling-v3"`
+	TempUserAvatarAPI      bool   `ocscapability:"temp-user-avatar-api"`
+	MaxGifSizeConfig       int    `ocscapability:"config => previews => max-gif-size"`
+	ChatMaxLength          int    `ocscapability:"config => chat => max-length"`
+}
+
+// RoomInfo contains information about a room
+type RoomInfo struct {
+	Token                 string                   `json:"token"`
+	Name                  string                   `json:"name"`
+	DisplayName           string                   `json:"displayName"`
+	SessionID             string                   `json:"sessionId"`
+	ObjectType            string                   `json:"objectType"`
+	ObjectID              string                   `json:"objectId"`
+	Type                  int                      `json:"type"`
+	ParticipantType       int                      `json:"participantType"`
+	ParticipantFlags      int                      `json:"participantFlags"`
+	ReadOnly              int                      `json:"readOnly"`
+	LastPing              int                      `json:"lastPing"`
+	LastActivity          int                      `json:"lastActivity"`
+	NotificationLevel     int                      `json:"notificationLevel"`
+	LobbyState            int                      `json:"lobbyState"`
+	LobbyTimer            int                      `json:"lobbyTimer"`
+	UnreadMessages        int                      `json:"unreadMessages"`
+	LastReadMessage       int                      `json:"lastReadMessage"`
+	HasPassword           bool                     `json:"hasPassword"`
+	HasCall               bool                     `json:"hasCall"`
+	CanStartCall          bool                     `json:"canStartCall"`
+	CanDeleteConversation bool                     `json:"canDeleteConversation"`
+	CanLeaveConversation  bool                     `json:"canLeaveConversation"`
+	IsFavorite            bool                     `json:"isFavorite"`
+	UnreadMention         bool                     `json:"unreadMention"`
+	LastMessage           *ocs.TalkRoomMessageData `json:"lastMessage"`
+}
+
+// NewUser returns a TalkUser instance
+// The url should be the full URL of the Nextcloud instance (e.g. https://cloud.mydomain.me)
+func NewUser(url string, username string, password string, config *TalkUserConfig) (*TalkUser, error) {
+	return &TalkUser{
+		NextcloudURL: strings.TrimSuffix(url, "/"),
+		User:         username,
+		Pass:         password,
+		Config:       config,
+	}, nil
+}
+
+// RequestClient returns a monaco-io that is preconfigured to make OCS API calls
+func (t *TalkUser) RequestClient(client request.Client) *request.Client {
+	if client.Header == nil {
+		client.Header = make(map[string]string)
+	}
+	if client.Header["OCS-APIRequest"] == "" {
+		client.Header["OCS-APIRequest"] = "true"
+	}
+	if client.Header["Accept"] == "" {
+		client.Header["Accept"] = "application/json"
+	}
+	client.BasicAuth = request.BasicAuth{
+		Username: t.User,
+		Password: t.Pass,
+	}
+
+	// Set Nextcloud URL if there is no host
+	if !strings.HasPrefix(client.URL, t.NextcloudURL) {
+		if strings.HasPrefix(client.URL, "/") {
+			client.URL = t.NextcloudURL + client.URL
+		} else {
+			client.URL = t.NextcloudURL + "/" + client.URL
+		}
+	}
+
+	// Set TLS Config
+	if t.Config != nil {
+		client.TLSConfig = t.Config.TLSConfig
+	}
+
+	return &client
+}
+
+// GetRooms returns a list of all rooms the user is in
+func (t *TalkUser) GetRooms() (*[]RoomInfo, error) {
+	endpoint := ocsRoomsv2Endpoint
+	capabilities, err := t.Capabilities()
+	if err != nil {
+		return nil, err
+	}
+	if capabilities.ConversationV4 {
+		endpoint = ocsRoomsv4Endpoint
+	}
+
+	client := t.RequestClient(request.Client{
+		URL: endpoint,
+	})
+	res, err := client.Do()
+	if err != nil {
+		return nil, err
+	}
+
+	var roomsRequest struct {
+		OCS struct {
+			Data []RoomInfo `json:"data"`
+		} `json:"ocs"`
+	}
+
+	err = json.Unmarshal(res.Data, &roomsRequest)
+	if err != nil {
+		return nil, err
+	}
+
+	return &roomsRequest.OCS.Data, nil
+}
+
+// Capabilities returns an instance of Capabilities that describes what the Nextcloud Talk instance supports
+func (t *TalkUser) Capabilities() (*Capabilities, error) {
+	if t.capabilities != nil {
+		return t.capabilities, nil
+	}
+
+	client := t.RequestClient(request.Client{
+		URL: ocsCapabilitiesEndpoint,
+	})
+	res, err := client.Do()
+	if err != nil {
+		return nil, err
+	}
+
+	capabilitiesRequest := &struct {
+		Ocs ocs.Capabilities `json:"ocs"`
+	}{}
+
+	err = json.Unmarshal(res.Data, capabilitiesRequest)
+	if err != nil {
+		return nil, err
+	}
+
+	sc := capabilitiesRequest.Ocs.Data.Capabilities.SpreedCapabilities
+
+	tr := &Capabilities{
+		Audio:                  sliceContains(sc.Features, "audio"),
+		Video:                  sliceContains(sc.Features, "video"),
+		Chat:                   sliceContains(sc.Features, "chat"),
+		GuestSignaling:         sliceContains(sc.Features, "guest-signaling"),
+		EmptyGroupRoom:         sliceContains(sc.Features, "empty-group-room"),
+		GuestDisplayNames:      sliceContains(sc.Features, "guest-display-names"),
+		MultiRoomUsers:         sliceContains(sc.Features, "multi-room-users"),
+		ChatV2:                 sliceContains(sc.Features, "chat-v2"),
+		Favorites:              sliceContains(sc.Features, "favorites"),
+		LastRoomActivity:       sliceContains(sc.Features, "last-room-activity"),
+		NoPing:                 sliceContains(sc.Features, "no-ping"),
+		SystemMessages:         sliceContains(sc.Features, "system-messages"),
+		MentionFlag:            sliceContains(sc.Features, "mention-flag"),
+		InCallFlags:            sliceContains(sc.Features, "in-call-flags"),
+		InviteByMail:           sliceContains(sc.Features, "invite-by-mail"),
+		NotificationLevels:     sliceContains(sc.Features, "notification-levels"),
+		InviteGroupsAndMails:   sliceContains(sc.Features, "invite-groups-and-mails"),
+		LockedOneToOneRooms:    sliceContains(sc.Features, "locked-one-to-one-rooms"),
+		ReadOnlyRooms:          sliceContains(sc.Features, "read-only-rooms"),
+		ChatReadMarker:         sliceContains(sc.Features, "chat-read-marker"),
+		WebinaryLobby:          sliceContains(sc.Features, "webinary-lobby"),
+		StartCallFlag:          sliceContains(sc.Features, "start-call-flag"),
+		ChatReplies:            sliceContains(sc.Features, "chat-replies"),
+		CirclesSupport:         sliceContains(sc.Features, "circles-support"),
+		AttachmentsAllowed:     sc.Config.Attachments.Allowed,
+		AttachmentsFolder:      sc.Config.Attachments.Folder,
+		ConversationsCanCreate: sc.Config.Conversations.CanCreate,
+		ForceMute:              sliceContains(sc.Features, "force-mute"),
+		ConversationV2:         sliceContains(sc.Features, "conversation-v2"),
+		ChatReferenceID:        sliceContains(sc.Features, "chat-reference-id"),
+		ChatMaxLength:          sc.Config.Chat.MaxLength,
+		ConversationV3:         sliceContains(sc.Features, "conversation-v3"),
+		ConversationV4:         sliceContains(sc.Features, "conversation-v4"),
+		SIPSupport:             sliceContains(sc.Features, "sip-support"),
+		ChatReadStatus:         sliceContains(sc.Features, "chat-read-status"),
+		ListableRooms:          sliceContains(sc.Features, "listable-rooms"),
+		PhonebookSearch:        sliceContains(sc.Features, "phonebook-search"),
+		RaiseHand:              sliceContains(sc.Features, "raise-hand"),
+		RoomDescription:        sliceContains(sc.Features, "room-description"),
+		ReadPrivacyConfig:      sc.Config.Chat.ReadPrivacy != 0,
+		MaxGifSizeConfig:       sc.Config.Previews.MaxGifSize,
+		DeleteMessages:         sliceContains(sc.Features, "delete-messages"),
+		RichObjectSharing:      sliceContains(sc.Features, "rich-object-sharing"),
+		ConversationCallFlags:  sliceContains(sc.Features, "conversation-call-flags"),
+		GeoLocationSharing:     sliceContains(sc.Features, "geo-location-sharing"),
+		SignalingV3:            sliceContains(sc.Features, "signaling-v3"),
+		TempUserAvatarAPI:      sliceContains(sc.Features, "temp-user-avatar-api"),
+	}
+
+	t.capabilities = tr
+	return tr, nil
+}
+
+// sliceContains does the slice contain the string
+func sliceContains(s []string, search string) bool {
+	for _, n := range s {
+		if n == search {
+			return true
+		}
+	}
+	return false
+}
+
+// DownloadFile downloads the file at the given path
+//
+// Meant to be used with rich object string's path.
+func (t *TalkUser) DownloadFile(path string) (data *[]byte, err error) {
+	url := t.NextcloudURL + constants.RemoteDavEndpoint(t.User, "files") + path
+	c := t.RequestClient(request.Client{
+		URL: url,
+	})
+	res, err := c.Do()
+	if err != nil {
+		return
+	}
+	if res.StatusCode() != 200 {
+		err = ErrCannotDownloadFile
+		return
+	}
+	data = &res.Data
+	return
+}