add admin API email endpoints (#22792)

add email endpoint to admin API to ensure API parity with admin
dashboard.

routers/api/v1/admin/email.go

@@ -0,0 +1,87 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package admin
+
+import (
+	"net/http"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/context"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/routers/api/v1/utils"
+	"code.gitea.io/gitea/services/convert"
+)
+
+// GetAllEmails
+func GetAllEmails(ctx *context.APIContext) {
+	// swagger:operation GET /admin/emails admin adminGetAllEmails
+	// ---
+	// summary: List all emails
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: page
+	//   in: query
+	//   description: page number of results to return (1-based)
+	//   type: integer
+	// - name: limit
+	//   in: query
+	//   description: page size of results
+	//   type: integer
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/EmailList"
+	//   "403":
+	//     "$ref": "#/responses/forbidden"
+
+	listOptions := utils.GetListOptions(ctx)
+
+	emails, maxResults, err := user_model.SearchEmails(&user_model.SearchEmailOptions{
+		Keyword:     ctx.Params(":email"),
+		ListOptions: listOptions,
+	})
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "GetAllEmails", err)
+		return
+	}
+
+	results := make([]*api.Email, len(emails))
+	for i := range emails {
+		results[i] = convert.ToEmailSearch(emails[i])
+	}
+
+	ctx.SetLinkHeader(int(maxResults), listOptions.PageSize)
+	ctx.SetTotalCountHeader(maxResults)
+	ctx.JSON(http.StatusOK, &results)
+}
+
+// SearchEmail
+func SearchEmail(ctx *context.APIContext) {
+	// swagger:operation GET /admin/emails/search admin adminSearchEmails
+	// ---
+	// summary: Search all emails
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: q
+	//   in: query
+	//   description: keyword
+	//   type: string
+	// - name: page
+	//   in: query
+	//   description: page number of results to return (1-based)
+	//   type: integer
+	// - name: limit
+	//   in: query
+	//   description: page size of results
+	//   type: integer
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/EmailList"
+	//   "403":
+	//     "$ref": "#/responses/forbidden"
+
+	ctx.SetParams(":email", ctx.FormTrim("q"))
+	GetAllEmails(ctx)
+}

routers/api/v1/api.go

@@ -1260,6 +1260,10 @@ func Routes(ctx gocontext.Context) *web.Route {
 					m.Post("/rename", bind(api.RenameUserOption{}), admin.RenameUser)
 				}, context_service.UserAssignmentAPI())
 			})
+			m.Group("/emails", func() {
+				m.Get("", admin.GetAllEmails)
+				m.Get("/search", admin.SearchEmail)
+			})
 			m.Group("/unadopted", func() {
 				m.Get("", admin.ListUnadoptedRepositories)
 				m.Post("/{username}/{reponame}", admin.AdoptRepository)