/
send_guild_channel_msg.go
226 lines (205 loc) · 6.07 KB
/
send_guild_channel_msg.go
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package handlers
import (
"bytes"
"encoding/base64"
"io"
"log"
"net/http"
"os"
"github.com/bwmarrin/discordgo"
"github.com/hoshinonyaruko/gensokyo-discord/callapi"
"github.com/hoshinonyaruko/gensokyo-discord/config"
"github.com/hoshinonyaruko/gensokyo-discord/idmap"
"github.com/hoshinonyaruko/gensokyo-discord/mylog"
"github.com/hoshinonyaruko/gensokyo-discord/echo"
)
func init() {
callapi.RegisterHandler("send_guild_channel_msg", HandleSendGuildChannelMsg)
}
func HandleSendGuildChannelMsg(client callapi.Client, s *discordgo.Session, message callapi.ActionMessage) (string, error) {
// 使用 message.Echo 作为key来获取消息类型
var msgType string
var retmsg string
if echoStr, ok := message.Echo.(string); ok {
// 当 message.Echo 是字符串类型时执行此块
msgType = echo.GetMsgTypeByKey(echoStr)
}
if msgType == "" {
msgType = GetMessageTypeByGroupid(config.GetAppIDStr(), message.Params.GroupID)
}
if msgType == "" {
msgType = GetMessageTypeByUserid(config.GetAppIDStr(), message.Params.UserID)
}
if msgType == "" {
msgType = GetMessageTypeByGroupidV2(message.Params.GroupID)
}
if msgType == "" {
msgType = GetMessageTypeByUseridV2(message.Params.UserID)
}
//当不转换频道信息时(不支持频道私聊)
if msgType == "" {
msgType = "guild"
}
switch msgType {
//原生guild信息
case "guild":
params := message.Params
messageText, foundItems := parseMessageContent(params)
channelID := params.ChannelID
// 使用 echo 获取消息ID
var messageID string
if config.GetLazyMessageId() {
//由于实现了Params的自定义unmarshell 所以可以类型安全的断言为string
messageID = echo.GetLazyMessagesId(channelID)
mylog.Printf("GetLazyMessagesId: %v", messageID)
}
if messageID == "" {
if echoStr, ok := message.Echo.(string); ok {
messageID = echo.GetMsgIDByKey(echoStr)
mylog.Println("echo取频道发信息对应的message_id:", messageID)
}
}
if messageID == "" {
messageID = GetMessageIDByUseridOrGroupid(config.GetAppIDStr(), channelID)
mylog.Println("通过GetMessageIDByUseridOrGroupid函数获取的message_id:", messageID)
}
//开发环境用
if config.GetDevMsgID() {
messageID = "1000"
}
mylog.Println("频道发信息messageText:", messageText)
//mylog.Println("foundItems:", foundItems)
// 优先发送文本信息
var err error
// 统一处理发送逻辑
msgseq := echo.GetMappingSeq(messageID)
echo.AddMappingSeq(messageID, msgseq+1)
// 使用GenerateReplyMessage函数处理所有类型的消息
replyMsg, err := GenerateReplyMessage(foundItems, messageText)
if err != nil {
mylog.Printf("生成消息失败: %v", err)
return "", err
}
mylog.Printf("频道发信息channelID:%v replyMsg:%v", channelID, replyMsg)
_, err = s.ChannelMessageSendComplex(channelID, replyMsg)
if err != nil {
mylog.Printf("发送消息失败: %v", err)
return "", err
}
// 发送回执
retmsg, _ := SendResponse(client, err, &message)
return retmsg, nil
//频道私信 此时直接取出
case "guild_private":
params := message.Params
channelID := params.ChannelID
guildID := params.GuildID
var RChannelID string
var err error
// 使用RetrieveRowByIDv2还原真实的ChannelID
RChannelID, err = idmap.RetrieveRowByIDv2(channelID)
if err != nil {
mylog.Printf("error retrieving real UserID: %v", err)
}
retmsg, _ = HandleSendGuildChannelPrivateMsg(client, s, message, &guildID, &RChannelID)
default:
mylog.Printf("2Unknown message type: %s", msgType)
}
return retmsg, nil
}
// GenerateReplyMessage 创建一个discordgo兼容的消息,支持多个图片
func GenerateReplyMessage(foundItems map[string][]string, messageText string) (*discordgo.MessageSend, error) {
msg := &discordgo.MessageSend{
Content: messageText,
}
// 处理本地图片
if imageURLs, ok := foundItems["local_image"]; ok {
for _, imageURL := range imageURLs {
fileData, err := os.ReadFile(imageURL)
if err != nil {
log.Printf("无法读取图片文件:%v", err)
continue
}
msg.Files = append(msg.Files, &discordgo.File{
Name: "image.png",
Reader: bytes.NewReader(fileData),
})
}
}
// 处理网络图片
if imageURLs, ok := foundItems["url_image"]; ok {
for _, imageURL := range imageURLs {
if config.GetUrlPicTransfer() {
// 如果配置为true,下载并转换为Base64
base64Data, err := downloadImage("http://" + imageURL)
if err != nil {
// 处理错误
continue
}
msg.Files = append(msg.Files, &discordgo.File{
Name: "image.png",
Reader: bytes.NewReader(base64Data),
})
} else {
// 否则直接使用URL
msg.Embeds = append(msg.Embeds, &discordgo.MessageEmbed{
Image: &discordgo.MessageEmbedImage{
URL: "http://" + imageURL,
},
})
}
}
}
// 处理网络图片
if imageURLs, ok := foundItems["url_images"]; ok {
for _, imageURL := range imageURLs {
if config.GetUrlPicTransfer() {
// 如果配置为true,下载并转换为Base64
base64Data, err := downloadImage("https://" + imageURL)
if err != nil {
// 处理错误
continue
}
msg.Files = append(msg.Files, &discordgo.File{
Name: "image.png",
Reader: bytes.NewReader(base64Data),
})
} else {
// 否则直接使用URL
msg.Embeds = append(msg.Embeds, &discordgo.MessageEmbed{
Image: &discordgo.MessageEmbedImage{
URL: "https://" + imageURL,
},
})
}
}
}
// 处理Base64编码的图片
if base64URLs, ok := foundItems["base64_image"]; ok {
for _, base64URL := range base64URLs {
data, err := base64.StdEncoding.DecodeString(base64URL)
if err != nil {
log.Printf("Base64解码失败:%v", err)
continue
}
msg.Files = append(msg.Files, &discordgo.File{
Name: "image.png",
Reader: bytes.NewReader(data),
})
}
}
return msg, nil
}
// 下载图片
func downloadImage(url string) ([]byte, error) {
resp, err := http.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
data, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return []byte(data), nil
}