[feature] Allow exposing allows, implement `/api/v1/domain_blocks` and `/api/v1/domain_allows` (#4169)

- adds config flags `instance-expose-allowlist` and `instance-expose-allowlist-web` to allow instance admins to expose their allowlist via the web + api.
- renames `instance-expose-suspended` and `instance-expose-suspended-web` to  `instance-expose-blocklist` and `instance-expose-blocklist-web`.
- deprecates the `suspended` filter on `/api/v1/instance/peers` endpoint and adds `blocked` and `allowed` filters
- adds the `flat` query param to `/api/v1/instance/peers` to allow forcing return of a flat list of domains
- implements `/api/v1/instance/domain_blocks` and `/api/v1/instance/domain_allows` endpoints with or without auth depending on config
- rejigs the instance about page to include a general section on domain permissions, with block and allow subsections (and appropriate links)

Closes https://codeberg.org/superseriousbusiness/gotosocial/issues/3847
Closes https://codeberg.org/superseriousbusiness/gotosocial/issues/4150

Prerequisite to https://codeberg.org/superseriousbusiness/gotosocial/issues/3711

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4169
Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Co-committed-by: tobi <tobi.smethurst@protonmail.com>

1 files changed, 0 insertions, 75 deletions

diff --git a/internal/web/domain-blocklist.go b/internal/web/domain-blocklist.go
deleted file mode 100644
index 34e23d899..000000000
--- a/internal/web/domain-blocklist.go
+++ /dev/null
@@ -1,75 +0,0 @@
-// GoToSocial
-// Copyright (C) GoToSocial Authors admin@gotosocial.org
-// SPDX-License-Identifier: AGPL-3.0-or-later
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package web
-
-import (
-	"context"
-	"fmt"
-
-	apimodel "code.superseriousbusiness.org/gotosocial/internal/api/model"
-	apiutil "code.superseriousbusiness.org/gotosocial/internal/api/util"
-	"code.superseriousbusiness.org/gotosocial/internal/config"
-	"code.superseriousbusiness.org/gotosocial/internal/gtserror"
-	"github.com/gin-gonic/gin"
-)
-
-const (
-	domainBlockListPath = aboutPath + "/suspended"
-)
-
-func (m *Module) domainBlockListGETHandler(c *gin.Context) {
-	instance, errWithCode := m.processor.InstanceGetV1(c.Request.Context())
-	if errWithCode != nil {
-		apiutil.WebErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
-		return
-	}
-
-	// Return instance we already got from the db,
-	// don't try to fetch it again when erroring.
-	instanceGet := func(ctx context.Context) (*apimodel.InstanceV1, gtserror.WithCode) {
-		return instance, nil
-	}
-
-	// We only serve text/html at this endpoint.
-	if _, err := apiutil.NegotiateAccept(c, apiutil.TextHTML); err != nil {
-		apiutil.WebErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), instanceGet)
-		return
-	}
-
-	if !config.GetInstanceExposeSuspendedWeb() {
-		err := fmt.Errorf("this instance does not publicy expose its blocklist")
-		apiutil.WebErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), instanceGet)
-		return
-	}
-
-	domainBlocks, errWithCode := m.processor.InstancePeersGet(c.Request.Context(), true, false, false)
-	if errWithCode != nil {
-		apiutil.WebErrorHandler(c, errWithCode, instanceGet)
-		return
-	}
-
-	page := apiutil.WebPage{
-		Template:    "domain-blocklist.tmpl",
-		Instance:    instance,
-		OGMeta:      apiutil.OGBase(instance),
-		Stylesheets: []string{cssFA},
-		Extra:       map[string]any{"blocklist": domainBlocks},
-	}
-
-	apiutil.TemplateWebPage(c, page)
-}