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https://github.com/go-gitea/gitea
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b7c944b9e4
Backport #28877 by @KN4CK3R Fixes #28875 If `RequireSignInView` is enabled, the ghost user has no access rights. Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
166 lines
5.1 KiB
Go
166 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 || doer.IsGhost()) {
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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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defer baseCleanUp()
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// it is still needed when rendering 500 page in a package handler
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ctx := NewWebContext(base, renderer, nil)
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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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