mlogclub
88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
// Package openidentity 解析开放 IM 场景下的外部访客身份（HTTP Header / Query），与 JSON 请求体 DTO 解耦。
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package openidentity
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import (
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"cs-agent/internal/pkg/enums"
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"cs-agent/internal/pkg/errorsx"
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"net/url"
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"strings"
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"github.com/kataras/iris/v12"
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"github.com/mlogclub/simple/common/strs"
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"github.com/mlogclub/simple/web/params"
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)
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// ExternalInfo 外部访客身份（IM 客户），与站内 AuthPrincipal 区分。
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type ExternalInfo struct {
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ExternalSource enums.ExternalSource `json:"externalSource"`
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ExternalType enums.ExternalType `json:"externalType"`
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ExternalID string `json:"externalId"`
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ExternalName string `json:"externalName"`
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}
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// GetExternalInfo 从 Header（X-External-*）或 query（externalSource、externalId、externalName）解析身份。
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func GetExternalInfo(ctx iris.Context) (*ExternalInfo, error) {
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externalSource, err := parseExternalSource(ctx)
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if err != nil {
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return nil, err
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}
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if !enums.IsAllowedOpenImExternalSource(externalSource) {
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return nil, errorsx.InvalidParam("不支持的外部来源")
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}
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externalID, err := parseExternalID(ctx)
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if err != nil {
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return nil, err
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}
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return &ExternalInfo{
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ExternalSource: externalSource,
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// TODO: 对接业务系统后，根据业务系统用户信息识别 user；未对接时统一按访客处理。
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ExternalType: enums.ExternalTypeGuest,
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ExternalID: externalID,
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ExternalName: parseExternalName(ctx),
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}, nil
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}
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func parseExternalSource(ctx iris.Context) (enums.ExternalSource, error) {
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externalSource := ctx.GetHeader("X-External-Source")
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if strs.IsBlank(externalSource) {
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externalSource, _ = params.Get(ctx, "externalSource")
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}
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if strs.IsBlank(externalSource) {
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return "", errorsx.Unauthorized("用户来源不能为空")
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}
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return enums.ExternalSource(strings.TrimSpace(externalSource)), nil
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}
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func parseExternalID(ctx iris.Context) (string, error) {
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externalID := ctx.GetHeader("X-External-Id")
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if strs.IsBlank(externalID) {
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externalID, _ = params.Get(ctx, "externalId")
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}
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if strs.IsBlank(externalID) {
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return "", errorsx.Unauthorized("用户标识不能为空")
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}
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return strings.TrimSpace(externalID), nil
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}
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func parseExternalName(ctx iris.Context) string {
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externalName := ctx.GetHeader("X-External-Name")
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if strs.IsBlank(externalName) {
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externalName, _ = params.Get(ctx, "externalName")
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}
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return decodeExternalDisplayName(externalName)
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}
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// decodeExternalDisplayName 将客户端对 X-External-Name / externalName 做的 encodeURIComponent 还原为 UTF-8。
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// 无百分号编码时 QueryUnescape 原样返回，解码失败则保留原串（兼容异常或旧客户端明文）。
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func decodeExternalDisplayName(s string) string {
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s = strings.TrimSpace(s)
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if s == "" {
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return ""
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}
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dec, err := url.QueryUnescape(s)
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if err != nil {
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return s
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}
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return strings.TrimSpace(dec)
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}
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