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Test if container blob is accessible before mounting (#22759)

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related #16865

This PR adds an accessibility check before mounting container blobs.

---------

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
KN4CK3R 2023-07-09 13:24:43 +02:00 • committed by GitHub
parent 38844e0869
commit 115f40e433
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3 changed files with 72 additions and 8 deletions
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46
models/packages/package_blob.go
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@ -5,11 +5,18 @@ package packages
import (
"context"
"strconv"
"time"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/perm"
"code.gitea.io/gitea/models/unit"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
"xorm.io/builder"
)
// ErrPackageBlobNotExist indicates a package blob not exist error
@ -98,3 +105,42 @@ func GetTotalUnreferencedBlobSize(ctx context.Context) (int64, error) {
Where("package_file.id IS NULL").
SumInt(&PackageBlob{}, "size")
}
// IsBlobAccessibleForUser tests if the user has access to the blob
func IsBlobAccessibleForUser(ctx context.Context, blobID int64, user *user_model.User) (bool, error) {
if user.IsAdmin {
return true, nil
}
maxTeamAuthorize := builder.
Select("max(team.authorize)").
From("team").
InnerJoin("team_user", "team_user.team_id = team.id").
Where(builder.Eq{"team_user.uid": user.ID}.And(builder.Expr("team_user.org_id = `user`.id")))
maxTeamUnitAccessMode := builder.
Select("max(team_unit.access_mode)").
From("team").
InnerJoin("team_user", "team_user.team_id = team.id").
InnerJoin("team_unit", "team_unit.team_id = team.id").
Where(builder.Eq{"team_user.uid": user.ID, "team_unit.type": unit.TypePackages}.And(builder.Expr("team_user.org_id = `user`.id")))
cond := builder.Eq{"package_blob.id": blobID}.And(
// owner = user
builder.Eq{"`user`.id": user.ID}.
// user can see owner
Or(builder.Eq{"`user`.visibility": structs.VisibleTypePublic}.Or(builder.Eq{"`user`.visibility": structs.VisibleTypeLimited})).
// owner is an organization and user has access to it
Or(builder.Eq{"`user`.type": user_model.UserTypeOrganization}.
And(builder.Lte{strconv.Itoa(int(perm.AccessModeRead)): maxTeamAuthorize}.Or(builder.Lte{strconv.Itoa(int(perm.AccessModeRead)): maxTeamUnitAccessMode}))),
)
return db.GetEngine(ctx).
Table("package_blob").
Join("INNER", "package_file", "package_file.blob_id = package_blob.id").
Join("INNER", "package_version", "package_version.id = package_file.version_id").
Join("INNER", "package", "package.id = package_version.package_id").
Join("INNER", "user", "`user`.id = package.owner_id").
Where(cond).
Exist(&PackageBlob{})
}