Improve get org permissions api

[yp05327]

Feature Description

It seems that we only have Team.Authorize before #17811, so maybe Team.Authorize is unnecessary now?
If it is unnecessary, maybe we need to do some changes to GetUserOrgsPermissions too?

gitea/routers/api/v1/org/org.go

Lines 105 to 169 in 6706ac2

	func GetUserOrgsPermissions(ctx *context.APIContext) {
	// swagger:operation GET /users/{username}/orgs/{org}/permissions organization orgGetUserPermissions
	// ---
	// summary: Get user permissions in organization
	// produces:
	// - application/json
	// parameters:
	// - name: username
	// in: path
	// description: username of user
	// type: string
	// required: true
	// - name: org
	// in: path
	// description: name of the organization
	// type: string
	// required: true
	// responses:
	// "200":
	// "$ref": "#/responses/OrganizationPermissions"
	// "403":
	// "$ref": "#/responses/forbidden"
	// "404":
	// "$ref": "#/responses/notFound"
	var o *user_model.User
	if o = user.GetUserByParamsName(ctx, ":org"); o == nil {
	return
	}
	op := api.OrganizationPermissions{}
	if !organization.HasOrgOrUserVisible(ctx, o, ctx.ContextUser) {
	ctx.NotFound("HasOrgOrUserVisible", nil)
	return
	}
	org := organization.OrgFromUser(o)
	authorizeLevel, err := org.GetOrgUserMaxAuthorizeLevel(ctx.ContextUser.ID)
	if err != nil {
	ctx.Error(http.StatusInternalServerError, "GetOrgUserAuthorizeLevel", err)
	return
	}
	if authorizeLevel > perm.AccessModeNone {
	op.CanRead = true
	}
	if authorizeLevel > perm.AccessModeRead {
	op.CanWrite = true
	}
	if authorizeLevel > perm.AccessModeWrite {
	op.IsAdmin = true
	}
	if authorizeLevel > perm.AccessModeAdmin {
	op.IsOwner = true
	}
	op.CanCreateRepository, err = org.CanCreateOrgRepo(ctx.ContextUser.ID)
	if err != nil {
	ctx.Error(http.StatusInternalServerError, "CanCreateOrgRepo", err)
	return
	}
	ctx.JSON(http.StatusOK, op)
	}

origin comment: #23729 (comment)

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