3f52bd197a
This PR adds the necessary resolvers to support the graphQL front-end. Some additional methods need to be added to the model structs to support this. Comments have been made to clarify their purpose. There is a slight duplication of code in the api layer. But eventually that's going to go away when we move away from the REST API entirely. The schema is in api4/schema.graphqls and gets compiled into the binary as an asset. The GraphiQL editor url is at GET /api/v5/graphql. Everything is behind the feature flag MM_FEATUREFLAGS_GRAPHQL. ```release-note NONE ```
114 строки
2.9 KiB
Go
114 строки
2.9 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package api4
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import (
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"context"
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"encoding/base64"
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"fmt"
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"strings"
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"github.com/mattermost/mattermost-server/v6/model"
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"github.com/mattermost/mattermost-server/v6/web"
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)
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// channelMember is an internal graphQL wrapper struct to add resolver methods.
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type channelMember struct {
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model.ChannelMember
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}
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// match with api4.getUser
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func (cm *channelMember) User(ctx context.Context) (*user, error) {
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return getGraphQLUser(ctx, cm.UserId)
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}
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// match with api4.Channel
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func (cm *channelMember) Channel(ctx context.Context) (*channel, error) {
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c, err := getCtx(ctx)
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if err != nil {
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return nil, err
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}
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channel, appErr := c.App.GetChannel(cm.ChannelId)
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if appErr != nil {
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return nil, appErr
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}
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if channel.Type == model.ChannelTypeOpen {
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if !c.App.SessionHasPermissionToTeam(*c.AppContext.Session(), channel.TeamId, model.PermissionReadPublicChannel) &&
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!c.App.SessionHasPermissionToChannel(*c.AppContext.Session(), cm.ChannelId, model.PermissionReadChannel) {
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c.SetPermissionError(model.PermissionReadPublicChannel)
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return nil, c.Err
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}
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} else {
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if !c.App.SessionHasPermissionToChannel(*c.AppContext.Session(), cm.ChannelId, model.PermissionReadChannel) {
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c.SetPermissionError(model.PermissionReadChannel)
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return nil, c.Err
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}
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}
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appErr = c.App.FillInChannelProps(channel)
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if appErr != nil {
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return nil, appErr
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}
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res, err := postProcessChannels(c, []*model.Channel{channel})
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if err != nil {
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return nil, err
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}
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// A bit of defence-in-depth; can probably be removed after a deeper look.
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if len(res) != 1 {
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return nil, fmt.Errorf("postProcessChannels: incorrect number of channels returned %d", len(res))
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}
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return res[0], nil
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}
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func (cm *channelMember) Roles_(ctx context.Context) ([]*model.Role, error) {
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c, err := getCtx(ctx)
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if err != nil {
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return nil, err
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}
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return getGraphQLRoles(c, strings.Fields(cm.Roles))
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}
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func (cm *channelMember) Cursor() *string {
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cursor := string(channelMemberCursorPrefix) + "-" + cm.ChannelId + "-" + cm.UserId
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encoded := base64.StdEncoding.EncodeToString([]byte(cursor))
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return model.NewString(encoded)
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}
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func getGraphQLRoles(c *web.Context, roleNames []string) ([]*model.Role, error) {
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cleanedRoleNames, valid := model.CleanRoleNames(roleNames)
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if !valid {
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c.SetInvalidParam("rolename")
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return nil, c.Err
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}
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roles, appErr := c.App.GetRolesByNames(cleanedRoleNames)
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if appErr != nil {
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return nil, appErr
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}
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return roles, nil
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}
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func parseChannelMemberCursor(cursor string) (channelID, userID string, ok bool) {
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decoded, err := base64.StdEncoding.DecodeString(cursor)
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if err != nil {
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return "", "", false
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}
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parts := strings.Split(string(decoded), "-")
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if len(parts) != 3 {
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return "", "", false
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}
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if cursorPrefix(parts[0]) != channelMemberCursorPrefix {
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return "", "", false
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}
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return parts[1], parts[2], true
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}
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