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Backport #25707 by @KN4CK3R Fixes (?) #25538 Fixes https://codeberg.org/forgejo/forgejo/issues/972 Regression #23879 #23879 introduced a change which prevents read access to packages if a user is not a member of an organization. That PR also contained a change which disallows package access if the team unit is configured with "no access" for packages. I don't think this change makes sense (at the moment). It may be relevant for private orgs. But for public or limited orgs that's useless because an unauthorized user would have more access rights than the team member. This PR restores the old behaviour "If a user has read access for an owner, they can read packages". Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
168 lines
5.1 KiB
Go
168 lines
5.1 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package context
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import (
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"fmt"
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"net/http"
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"code.gitea.io/gitea/models/organization"
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packages_model "code.gitea.io/gitea/models/packages"
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"code.gitea.io/gitea/models/perm"
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"code.gitea.io/gitea/models/unit"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/templates"
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)
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// Package contains owner, access mode and optional the package descriptor
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type Package struct {
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Owner *user_model.User
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AccessMode perm.AccessMode
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Descriptor *packages_model.PackageDescriptor
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}
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type packageAssignmentCtx struct {
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*Base
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Doer *user_model.User
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ContextUser *user_model.User
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}
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// PackageAssignment returns a middleware to handle Context.Package assignment
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func PackageAssignment() func(ctx *Context) {
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return func(ctx *Context) {
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errorFn := func(status int, title string, obj any) {
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err, ok := obj.(error)
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if !ok {
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err = fmt.Errorf("%s", obj)
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}
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if status == http.StatusNotFound {
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ctx.NotFound(title, err)
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} else {
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ctx.ServerError(title, err)
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}
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}
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paCtx := &packageAssignmentCtx{Base: ctx.Base, Doer: ctx.Doer, ContextUser: ctx.ContextUser}
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ctx.Package = packageAssignment(paCtx, errorFn)
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}
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}
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// PackageAssignmentAPI returns a middleware to handle Context.Package assignment
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func PackageAssignmentAPI() func(ctx *APIContext) {
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return func(ctx *APIContext) {
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paCtx := &packageAssignmentCtx{Base: ctx.Base, Doer: ctx.Doer, ContextUser: ctx.ContextUser}
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ctx.Package = packageAssignment(paCtx, ctx.Error)
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}
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}
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func packageAssignment(ctx *packageAssignmentCtx, errCb func(int, string, any)) *Package {
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pkg := &Package{
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Owner: ctx.ContextUser,
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}
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var err error
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pkg.AccessMode, err = determineAccessMode(ctx.Base, pkg, ctx.Doer)
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if err != nil {
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errCb(http.StatusInternalServerError, "determineAccessMode", err)
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return pkg
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}
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packageType := ctx.Params("type")
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name := ctx.Params("name")
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version := ctx.Params("version")
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if packageType != "" && name != "" && version != "" {
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pv, err := packages_model.GetVersionByNameAndVersion(ctx, pkg.Owner.ID, packages_model.Type(packageType), name, version)
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if err != nil {
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if err == packages_model.ErrPackageNotExist {
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errCb(http.StatusNotFound, "GetVersionByNameAndVersion", err)
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} else {
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errCb(http.StatusInternalServerError, "GetVersionByNameAndVersion", err)
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}
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return pkg
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}
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pkg.Descriptor, err = packages_model.GetPackageDescriptor(ctx, pv)
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if err != nil {
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errCb(http.StatusInternalServerError, "GetPackageDescriptor", err)
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return pkg
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}
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}
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return pkg
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}
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func determineAccessMode(ctx *Base, pkg *Package, doer *user_model.User) (perm.AccessMode, error) {
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if setting.Service.RequireSignInView && doer == nil {
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return perm.AccessModeNone, nil
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}
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if doer != nil && !doer.IsGhost() && (!doer.IsActive || doer.ProhibitLogin) {
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return perm.AccessModeNone, nil
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}
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// TODO: ActionUser permission check
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accessMode := perm.AccessModeNone
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if pkg.Owner.IsOrganization() {
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org := organization.OrgFromUser(pkg.Owner)
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if doer != nil && !doer.IsGhost() {
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// 1. If user is logged in, check all team packages permissions
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var err error
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accessMode, err = org.GetOrgUserMaxAuthorizeLevel(doer.ID)
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if err != nil {
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return accessMode, err
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}
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// If access mode is less than write check every team for more permissions
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// The minimum possible access mode is read for org members
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if accessMode < perm.AccessModeWrite {
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teams, err := organization.GetUserOrgTeams(ctx, org.ID, doer.ID)
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if err != nil {
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return accessMode, err
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}
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for _, t := range teams {
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perm := t.UnitAccessMode(ctx, unit.TypePackages)
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if accessMode < perm {
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accessMode = perm
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}
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}
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}
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}
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if accessMode == perm.AccessModeNone && organization.HasOrgOrUserVisible(ctx, pkg.Owner, doer) {
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// 2. If user is unauthorized or no org member, check if org is visible
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accessMode = perm.AccessModeRead
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}
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} else {
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if doer != nil && !doer.IsGhost() {
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// 1. Check if user is package owner
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if doer.ID == pkg.Owner.ID {
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accessMode = perm.AccessModeOwner
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} else if pkg.Owner.Visibility == structs.VisibleTypePublic || pkg.Owner.Visibility == structs.VisibleTypeLimited { // 2. Check if package owner is public or limited
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accessMode = perm.AccessModeRead
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}
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} else if pkg.Owner.Visibility == structs.VisibleTypePublic { // 3. Check if package owner is public
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accessMode = perm.AccessModeRead
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}
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}
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return accessMode, nil
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}
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// PackageContexter initializes a package context for a request.
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func PackageContexter() func(next http.Handler) http.Handler {
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renderer := templates.HTMLRenderer()
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
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base, baseCleanUp := NewBaseContext(resp, req)
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ctx := &Context{
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Base: base,
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Render: renderer, // it is still needed when rendering 500 page in a package handler
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}
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defer baseCleanUp()
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ctx.Base.AppendContextValue(WebContextKey, ctx)
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next.ServeHTTP(ctx.Resp, ctx.Req)
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})
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}
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}
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