c1110b8671
Repositories owned by private users and organisations and pulls by restricted users need to have permissions checked. Previously Serv would simply assumed that if the user could log in and the repository was not private then it would be visible. Fix #17364 Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: techknowlogick <techknowlogick@gitea.io>
404 lines
13 KiB
Go
404 lines
13 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// Package private includes all internal routes. The package name internal is ideal but Golang is not allowed, so we use private as package name instead.
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package private
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import (
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"fmt"
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"net/http"
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"strings"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/private"
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"code.gitea.io/gitea/modules/setting"
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repo_service "code.gitea.io/gitea/services/repository"
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wiki_service "code.gitea.io/gitea/services/wiki"
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)
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// ServNoCommand returns information about the provided keyid
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func ServNoCommand(ctx *context.PrivateContext) {
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keyID := ctx.ParamsInt64(":keyid")
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if keyID <= 0 {
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ctx.JSON(http.StatusBadRequest, private.Response{
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Err: fmt.Sprintf("Bad key id: %d", keyID),
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})
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}
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results := private.KeyAndOwner{}
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key, err := models.GetPublicKeyByID(keyID)
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if err != nil {
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if models.IsErrKeyNotExist(err) {
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ctx.JSON(http.StatusUnauthorized, private.Response{
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Err: fmt.Sprintf("Cannot find key: %d", keyID),
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})
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return
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}
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log.Error("Unable to get public key: %d Error: %v", keyID, err)
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ctx.JSON(http.StatusInternalServerError, private.Response{
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Err: err.Error(),
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})
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return
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}
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results.Key = key
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if key.Type == models.KeyTypeUser || key.Type == models.KeyTypePrincipal {
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user, err := models.GetUserByID(key.OwnerID)
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if err != nil {
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if models.IsErrUserNotExist(err) {
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ctx.JSON(http.StatusUnauthorized, private.Response{
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Err: fmt.Sprintf("Cannot find owner with id: %d for key: %d", key.OwnerID, keyID),
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})
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return
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}
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log.Error("Unable to get owner with id: %d for public key: %d Error: %v", key.OwnerID, keyID, err)
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ctx.JSON(http.StatusInternalServerError, private.Response{
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Err: err.Error(),
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})
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return
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}
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if !user.IsActive || user.ProhibitLogin {
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ctx.JSON(http.StatusForbidden, private.Response{
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Err: "Your account is disabled.",
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})
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return
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}
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results.Owner = user
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}
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ctx.JSON(http.StatusOK, &results)
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}
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// ServCommand returns information about the provided keyid
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func ServCommand(ctx *context.PrivateContext) {
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keyID := ctx.ParamsInt64(":keyid")
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ownerName := ctx.Params(":owner")
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repoName := ctx.Params(":repo")
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mode := models.AccessMode(ctx.FormInt("mode"))
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// Set the basic parts of the results to return
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results := private.ServCommandResults{
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RepoName: repoName,
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OwnerName: ownerName,
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KeyID: keyID,
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}
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// Now because we're not translating things properly let's just default some English strings here
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modeString := "read"
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if mode > models.AccessModeRead {
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modeString = "write to"
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}
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// The default unit we're trying to look at is code
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unitType := models.UnitTypeCode
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// Unless we're a wiki...
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if strings.HasSuffix(repoName, ".wiki") {
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// in which case we need to look at the wiki
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unitType = models.UnitTypeWiki
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// And we'd better munge the reponame and tell downstream we're looking at a wiki
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results.IsWiki = true
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results.RepoName = repoName[:len(repoName)-5]
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}
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owner, err := models.GetUserByName(results.OwnerName)
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if err != nil {
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log.Error("Unable to get repository owner: %s/%s Error: %v", results.OwnerName, results.RepoName, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get repository owner: %s/%s %v", results.OwnerName, results.RepoName, err),
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})
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return
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}
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if !owner.IsOrganization() && !owner.IsActive {
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ctx.JSON(http.StatusForbidden, private.ErrServCommand{
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Results: results,
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Err: "Repository cannot be accessed, you could retry it later",
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})
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return
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}
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// Now get the Repository and set the results section
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repoExist := true
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repo, err := models.GetRepositoryByName(owner.ID, results.RepoName)
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if err != nil {
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if models.IsErrRepoNotExist(err) {
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repoExist = false
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for _, verb := range ctx.FormStrings("verb") {
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if "git-upload-pack" == verb {
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// User is fetching/cloning a non-existent repository
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log.Error("Failed authentication attempt (cannot find repository: %s/%s) from %s", results.OwnerName, results.RepoName, ctx.RemoteAddr())
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ctx.JSON(http.StatusNotFound, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Cannot find repository: %s/%s", results.OwnerName, results.RepoName),
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})
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return
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}
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}
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} else {
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log.Error("Unable to get repository: %s/%s Error: %v", results.OwnerName, results.RepoName, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get repository: %s/%s %v", results.OwnerName, results.RepoName, err),
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})
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return
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}
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}
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if repoExist {
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repo.Owner = owner
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repo.OwnerName = ownerName
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results.RepoID = repo.ID
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if repo.IsBeingCreated() {
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: "Repository is being created, you could retry after it finished",
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})
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return
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}
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// We can shortcut at this point if the repo is a mirror
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if mode > models.AccessModeRead && repo.IsMirror {
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ctx.JSON(http.StatusForbidden, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Mirror Repository %s/%s is read-only", results.OwnerName, results.RepoName),
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})
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return
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}
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}
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// Get the Public Key represented by the keyID
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key, err := models.GetPublicKeyByID(keyID)
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if err != nil {
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if models.IsErrKeyNotExist(err) {
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ctx.JSON(http.StatusNotFound, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Cannot find key: %d", keyID),
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})
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return
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}
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log.Error("Unable to get public key: %d Error: %v", keyID, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get key: %d Error: %v", keyID, err),
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})
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return
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}
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results.KeyName = key.Name
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results.KeyID = key.ID
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results.UserID = key.OwnerID
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// If repo doesn't exist, deploy key doesn't make sense
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if !repoExist && key.Type == models.KeyTypeDeploy {
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ctx.JSON(http.StatusNotFound, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Cannot find repository %s/%s", results.OwnerName, results.RepoName),
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})
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return
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}
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// Deploy Keys have ownerID set to 0 therefore we can't use the owner
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// So now we need to check if the key is a deploy key
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// We'll keep hold of the deploy key here for permissions checking
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var deployKey *models.DeployKey
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var user *models.User
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if key.Type == models.KeyTypeDeploy {
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results.IsDeployKey = true
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var err error
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deployKey, err = models.GetDeployKeyByRepo(key.ID, repo.ID)
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if err != nil {
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if models.IsErrDeployKeyNotExist(err) {
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ctx.JSON(http.StatusNotFound, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Public (Deploy) Key: %d:%s is not authorized to %s %s/%s.", key.ID, key.Name, modeString, results.OwnerName, results.RepoName),
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})
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return
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}
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log.Error("Unable to get deploy for public (deploy) key: %d in %-v Error: %v", key.ID, repo, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get Deploy Key for Public Key: %d:%s in %s/%s.", key.ID, key.Name, results.OwnerName, results.RepoName),
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})
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return
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}
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results.KeyName = deployKey.Name
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// FIXME: Deploy keys aren't really the owner of the repo pushing changes
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// however we don't have good way of representing deploy keys in hook.go
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// so for now use the owner of the repository
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results.UserName = results.OwnerName
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results.UserID = repo.OwnerID
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if !repo.Owner.KeepEmailPrivate {
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results.UserEmail = repo.Owner.Email
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}
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} else {
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// Get the user represented by the Key
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var err error
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user, err = models.GetUserByID(key.OwnerID)
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if err != nil {
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if models.IsErrUserNotExist(err) {
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ctx.JSON(http.StatusUnauthorized, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Public Key: %d:%s owner %d does not exist.", key.ID, key.Name, key.OwnerID),
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})
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return
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}
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log.Error("Unable to get owner: %d for public key: %d:%s Error: %v", key.OwnerID, key.ID, key.Name, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get Owner: %d for Deploy Key: %d:%s in %s/%s.", key.OwnerID, key.ID, key.Name, ownerName, repoName),
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})
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return
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}
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if !user.IsActive || user.ProhibitLogin {
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ctx.JSON(http.StatusForbidden, private.Response{
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Err: "Your account is disabled.",
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})
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return
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}
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results.UserName = user.Name
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if !user.KeepEmailPrivate {
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results.UserEmail = user.Email
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}
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}
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// Don't allow pushing if the repo is archived
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if repoExist && mode > models.AccessModeRead && repo.IsArchived {
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ctx.JSON(http.StatusUnauthorized, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Repo: %s/%s is archived.", results.OwnerName, results.RepoName),
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})
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return
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}
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// Permissions checking:
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if repoExist &&
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(mode > models.AccessModeRead ||
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repo.IsPrivate ||
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owner.Visibility.IsPrivate() ||
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user.IsRestricted ||
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setting.Service.RequireSignInView) {
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if key.Type == models.KeyTypeDeploy {
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if deployKey.Mode < mode {
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ctx.JSON(http.StatusUnauthorized, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Deploy Key: %d:%s is not authorized to %s %s/%s.", key.ID, key.Name, modeString, results.OwnerName, results.RepoName),
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})
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return
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}
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} else {
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// Because of the special ref "refs/for" we will need to delay write permission check
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if git.SupportProcReceive && unitType == models.UnitTypeCode {
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mode = models.AccessModeRead
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}
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perm, err := models.GetUserRepoPermission(repo, user)
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if err != nil {
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log.Error("Unable to get permissions for %-v with key %d in %-v Error: %v", user, key.ID, repo, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get permissions for user %d:%s with key %d in %s/%s Error: %v", user.ID, user.Name, key.ID, results.OwnerName, results.RepoName, err),
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})
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return
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}
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userMode := perm.UnitAccessMode(unitType)
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if userMode < mode {
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log.Error("Failed authentication attempt for %s with key %s (not authorized to %s %s/%s) from %s", user.Name, key.Name, modeString, ownerName, repoName, ctx.RemoteAddr())
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ctx.JSON(http.StatusUnauthorized, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("User: %d:%s with Key: %d:%s is not authorized to %s %s/%s.", user.ID, user.Name, key.ID, key.Name, modeString, ownerName, repoName),
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})
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return
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}
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}
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}
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// We already know we aren't using a deploy key
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if !repoExist {
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owner, err := models.GetUserByName(ownerName)
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if err != nil {
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Unable to get owner: %s %v", results.OwnerName, err),
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})
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return
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}
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if owner.IsOrganization() && !setting.Repository.EnablePushCreateOrg {
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ctx.JSON(http.StatusForbidden, private.ErrServCommand{
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Results: results,
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Err: "Push to create is not enabled for organizations.",
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})
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return
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}
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if !owner.IsOrganization() && !setting.Repository.EnablePushCreateUser {
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ctx.JSON(http.StatusForbidden, private.ErrServCommand{
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Results: results,
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Err: "Push to create is not enabled for users.",
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})
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return
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}
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repo, err = repo_service.PushCreateRepo(user, owner, results.RepoName)
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if err != nil {
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log.Error("pushCreateRepo: %v", err)
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ctx.JSON(http.StatusNotFound, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Cannot find repository: %s/%s", results.OwnerName, results.RepoName),
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})
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return
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}
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results.RepoID = repo.ID
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}
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if results.IsWiki {
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// Ensure the wiki is enabled before we allow access to it
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if _, err := repo.GetUnit(models.UnitTypeWiki); err != nil {
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if models.IsErrUnitTypeNotExist(err) {
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ctx.JSON(http.StatusForbidden, private.ErrServCommand{
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Results: results,
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Err: "repository wiki is disabled",
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})
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return
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}
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log.Error("Failed to get the wiki unit in %-v Error: %v", repo, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Failed to get the wiki unit in %s/%s Error: %v", ownerName, repoName, err),
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})
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return
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}
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// Finally if we're trying to touch the wiki we should init it
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if err = wiki_service.InitWiki(repo); err != nil {
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log.Error("Failed to initialize the wiki in %-v Error: %v", repo, err)
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ctx.JSON(http.StatusInternalServerError, private.ErrServCommand{
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Results: results,
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Err: fmt.Sprintf("Failed to initialize the wiki in %s/%s Error: %v", ownerName, repoName, err),
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})
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return
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}
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}
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log.Debug("Serv Results:\nIsWiki: %t\nIsDeployKey: %t\nKeyID: %d\tKeyName: %s\nUserName: %s\nUserID: %d\nOwnerName: %s\nRepoName: %s\nRepoID: %d",
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results.IsWiki,
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results.IsDeployKey,
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results.KeyID,
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results.KeyName,
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results.UserName,
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results.UserID,
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results.OwnerName,
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results.RepoName,
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results.RepoID)
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ctx.JSON(http.StatusOK, results)
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// We will update the keys in a different call.
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}
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