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Add builtin Matrix client and send HTML formatted messages to Matrix
- Add builtin Matrix client - Remove dependency on `gomatrix` client - Send HTML formatted messages to Matrix
This commit is contained in:
Frédéric Guillot
parent
3b94217fb7
commit
3d84b07532
5 changed files with 220 additions and 30 deletions
200
internal/integration/matrixbot/client.go
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200
internal/integration/matrixbot/client.go
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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package matrixbot // import "miniflux.app/v2/internal/integration/matrixbot"
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"time"
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"miniflux.app/v2/internal/crypto"
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"miniflux.app/v2/internal/version"
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)
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const defaultClientTimeout = 10 * time.Second
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type Client struct {
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matrixBaseURL string
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}
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func NewClient(matrixBaseURL string) *Client {
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return &Client{matrixBaseURL: matrixBaseURL}
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}
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// Specs: https://spec.matrix.org/v1.8/client-server-api/#getwell-knownmatrixclient
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func (c *Client) DiscoverEndpoints() (*DiscoveryEndpointResponse, error) {
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endpointURL, err := url.JoinPath(c.matrixBaseURL, "/.well-known/matrix/client")
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to join base URL and path: %w", err)
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}
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request, err := http.NewRequest(http.MethodGet, endpointURL, nil)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to create request: %v", err)
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}
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request.Header.Set("Accept", "application/json")
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request.Header.Set("User-Agent", "Miniflux/"+version.Version)
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httpClient := &http.Client{Timeout: defaultClientTimeout}
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response, err := httpClient.Do(request)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to send request: %v", err)
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}
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defer response.Body.Close()
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if response.StatusCode >= 400 {
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return nil, fmt.Errorf("matrix: unexpected response from %s status code is %d", endpointURL, response.StatusCode)
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}
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var discoveryEndpointResponse DiscoveryEndpointResponse
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if err := json.NewDecoder(response.Body).Decode(&discoveryEndpointResponse); err != nil {
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return nil, fmt.Errorf("matrix: unable to decode discovery response: %w", err)
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}
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return &discoveryEndpointResponse, nil
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}
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// Specs https://spec.matrix.org/v1.8/client-server-api/#post_matrixclientv3login
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func (c *Client) Login(homeServerURL, matrixUsername, matrixPassword string) (*LoginResponse, error) {
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endpointURL, err := url.JoinPath(homeServerURL, "/_matrix/client/v3/login")
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to join base URL and path: %w", err)
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}
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loginRequest := LoginRequest{
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Type: "m.login.password",
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Identifier: UserIdentifier{
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Type: "m.id.user",
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User: matrixUsername,
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},
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Password: matrixPassword,
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}
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requestBody, err := json.Marshal(loginRequest)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to encode request body: %v", err)
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}
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request, err := http.NewRequest(http.MethodPost, endpointURL, bytes.NewReader(requestBody))
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to create request: %v", err)
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}
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request.Header.Set("Content-Type", "application/json")
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request.Header.Set("Accept", "application/json")
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request.Header.Set("User-Agent", "Miniflux/"+version.Version)
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httpClient := &http.Client{Timeout: defaultClientTimeout}
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response, err := httpClient.Do(request)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to send request: %v", err)
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}
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defer response.Body.Close()
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if response.StatusCode >= 400 {
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return nil, fmt.Errorf("matrix: unexpected response from %s status code is %d", endpointURL, response.StatusCode)
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}
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var loginResponse LoginResponse
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if err := json.NewDecoder(response.Body).Decode(&loginResponse); err != nil {
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return nil, fmt.Errorf("matrix: unable to decode login response: %w", err)
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}
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return &loginResponse, nil
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}
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// Specs https://spec.matrix.org/v1.8/client-server-api/#put_matrixclientv3roomsroomidsendeventtypetxnid
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func (c *Client) SendFormattedTextMessage(homeServerURL, accessToken, roomID, textMessage, formattedMessage string) (*RoomEventResponse, error) {
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txnID := crypto.GenerateRandomStringHex(10)
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endpointURL, err := url.JoinPath(homeServerURL, "/_matrix/client/v3/rooms/", roomID, "/send/m.room.message/", txnID)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to join base URL and path: %w", err)
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}
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messageEvent := TextMessageEventRequest{
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MsgType: "m.text",
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Body: textMessage,
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Format: "org.matrix.custom.html",
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FormattedBody: formattedMessage,
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}
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requestBody, err := json.Marshal(messageEvent)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to encode request body: %v", err)
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}
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request, err := http.NewRequest(http.MethodPut, endpointURL, bytes.NewReader(requestBody))
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to create request: %v", err)
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}
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request.Header.Set("Content-Type", "application/json")
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request.Header.Set("Accept", "application/json")
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request.Header.Set("User-Agent", "Miniflux/"+version.Version)
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request.Header.Set("Authorization", "Bearer "+accessToken)
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httpClient := &http.Client{Timeout: defaultClientTimeout}
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response, err := httpClient.Do(request)
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if err != nil {
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return nil, fmt.Errorf("matrix: unable to send request: %v", err)
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}
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defer response.Body.Close()
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if response.StatusCode >= 400 {
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return nil, fmt.Errorf("matrix: unexpected response from %s status code is %d", endpointURL, response.StatusCode)
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}
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var eventResponse RoomEventResponse
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if err := json.NewDecoder(response.Body).Decode(&eventResponse); err != nil {
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return nil, fmt.Errorf("matrix: unable to decode event response: %w", err)
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}
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return &eventResponse, nil
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}
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type HomeServerInformation struct {
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BaseURL string `json:"base_url"`
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}
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type IdentityServerInformation struct {
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BaseURL string `json:"base_url"`
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}
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type DiscoveryEndpointResponse struct {
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HomeServerInformation HomeServerInformation `json:"m.homeserver"`
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IdentityServerInformation IdentityServerInformation `json:"m.identity_server"`
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}
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type UserIdentifier struct {
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Type string `json:"type"`
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User string `json:"user"`
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}
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type LoginRequest struct {
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Type string `json:"type"`
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Identifier UserIdentifier `json:"identifier"`
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Password string `json:"password"`
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}
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type LoginResponse struct {
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UserID string `json:"user_id"`
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AccessToken string `json:"access_token"`
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DeviceID string `json:"device_id"`
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HomeServer string `json:"home_server"`
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}
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type TextMessageEventRequest struct {
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MsgType string `json:"msgtype"`
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Body string `json:"body"`
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Format string `json:"format"`
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FormattedBody string `json:"formatted_body"`
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}
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type RoomEventResponse struct {
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EventID string `json:"event_id"`
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}
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