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gitea/routers/private/serv.go
wxiaoguang 7c613f100e
Make sure git version&feature are always prepared (#30877)
Otherwise there would be more similar issues like #29287
2024-05-06 18:34:16 +02:00

397 lines
13 KiB
Go

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