2025-06-17 16:29:08 +08:00

103 lines
2.9 KiB
Go

package mattermost
import (
"context"
"errors"
"fmt"
"log/slog"
"strings"
"github.com/go-resty/resty/v2"
"github.com/certimate-go/certimate/pkg/core"
)
type NotifierProviderConfig struct {
// Mattermost 服务地址。
ServerUrl string `json:"serverUrl"`
// Mattermost 用户名。
Username string `json:"username"`
// Mattermost 密码。
Password string `json:"password"`
// Mattermost 频道 ID。
ChannelId string `json:"channelId"`
}
type NotifierProvider struct {
config *NotifierProviderConfig
logger *slog.Logger
httpClient *resty.Client
}
var _ core.Notifier = (*NotifierProvider)(nil)
func NewNotifierProvider(config *NotifierProviderConfig) (*NotifierProvider, error) {
if config == nil {
return nil, errors.New("the configuration of the notifier provider is nil")
}
client := resty.New()
return &NotifierProvider{
config: config,
logger: slog.Default(),
httpClient: client,
}, nil
}
func (n *NotifierProvider) SetLogger(logger *slog.Logger) {
if logger == nil {
n.logger = slog.New(slog.DiscardHandler)
} else {
n.logger = logger
}
}
func (n *NotifierProvider) Notify(ctx context.Context, subject string, message string) (*core.NotifyResult, error) {
serverUrl := strings.TrimRight(n.config.ServerUrl, "/")
// REF: https://developers.mattermost.com/api-documentation/#/operations/Login
loginReq := n.httpClient.R().
SetContext(ctx).
SetHeader("Content-Type", "application/json").
SetHeader("User-Agent", "certimate").
SetBody(map[string]any{
"login_id": n.config.Username,
"password": n.config.Password,
})
loginResp, err := loginReq.Post(fmt.Sprintf("%s/api/v4/users/login", serverUrl))
if err != nil {
return nil, fmt.Errorf("mattermost api error: failed to send request: %w", err)
} else if loginResp.IsError() {
return nil, fmt.Errorf("mattermost api error: unexpected status code: %d, resp: %s", loginResp.StatusCode(), loginResp.String())
} else if loginResp.Header().Get("Token") == "" {
return nil, fmt.Errorf("mattermost api error: received empty login token")
}
// REF: https://developers.mattermost.com/api-documentation/#/operations/CreatePost
postReq := n.httpClient.R().
SetContext(ctx).
SetHeader("Authorization", "Bearer "+loginResp.Header().Get("Token")).
SetHeader("Content-Type", "application/json").
SetHeader("User-Agent", "certimate").
SetBody(map[string]any{
"channel_id": n.config.ChannelId,
"props": map[string]interface{}{
"attachments": []map[string]interface{}{
{
"title": subject,
"text": message,
},
},
},
})
postResp, err := postReq.Post(fmt.Sprintf("%s/api/v4/posts", serverUrl))
if err != nil {
return nil, fmt.Errorf("mattermost api error: failed to send request: %w", err)
} else if postResp.IsError() {
return nil, fmt.Errorf("mattermost api error: unexpected status code: %d, resp: %s", postResp.StatusCode(), postResp.String())
}
return &core.NotifyResult{}, nil
}