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author | wxiaoguang <wxiaoguang@gmail.com> | 2023-02-04 10:30:43 +0800 |
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committer | GitHub <noreply@github.com> | 2023-02-04 10:30:43 +0800 |
commit | 6bc3079c0036a54d1b8ab04c5a6e14111c719c9a (patch) | |
tree | c34acfe5124c7fd9c1d1190336de4768484f1fb9 /services/mirror/mirror_push.go | |
parent | 3c5655ce18056277917092d370bbdfbcdaaa8ae6 (diff) | |
download | gitea-6bc3079c0036a54d1b8ab04c5a6e14111c719c9a.tar.gz gitea-6bc3079c0036a54d1b8ab04c5a6e14111c719c9a.zip |
Refactor git command package to improve security and maintainability (#22678)
This PR follows #21535 (and replace #22592)
## Review without space diff
https://github.com/go-gitea/gitea/pull/22678/files?diff=split&w=1
## Purpose of this PR
1. Make git module command completely safe (risky user inputs won't be
passed as argument option anymore)
2. Avoid low-level mistakes like
https://github.com/go-gitea/gitea/pull/22098#discussion_r1045234918
3. Remove deprecated and dirty `CmdArgCheck` function, hide the `CmdArg`
type
4. Simplify code when using git command
## The main idea of this PR
* Move the `git.CmdArg` to the `internal` package, then no other package
except `git` could use it. Then developers could never do
`AddArguments(git.CmdArg(userInput))` any more.
* Introduce `git.ToTrustedCmdArgs`, it's for user-provided and already
trusted arguments. It's only used in a few cases, for example: use git
arguments from config file, help unit test with some arguments.
* Introduce `AddOptionValues` and `AddOptionFormat`, they make code more
clear and simple:
* Before: `AddArguments("-m").AddDynamicArguments(message)`
* After: `AddOptionValues("-m", message)`
* -
* Before: `AddArguments(git.CmdArg(fmt.Sprintf("--author='%s <%s>'",
sig.Name, sig.Email)))`
* After: `AddOptionFormat("--author='%s <%s>'", sig.Name, sig.Email)`
## FAQ
### Why these changes were not done in #21535 ?
#21535 is mainly a search&replace, it did its best to not change too
much logic.
Making the framework better needs a lot of changes, so this separate PR
is needed as the second step.
### The naming of `AddOptionXxx`
According to git's manual, the `--xxx` part is called `option`.
### How can it guarantee that `internal.CmdArg` won't be not misused?
Go's specification guarantees that. Trying to access other package's
internal package causes compilation error.
And, `golangci-lint` also denies the git/internal package. Only the
`git/command.go` can use it carefully.
### There is still a `ToTrustedCmdArgs`, will it still allow developers
to make mistakes and pass untrusted arguments?
Generally speaking, no. Because when using `ToTrustedCmdArgs`, the code
will be very complex (see the changes for examples). Then developers and
reviewers can know that something might be unreasonable.
### Why there was a `CmdArgCheck` and why it's removed?
At the moment of #21535, to reduce unnecessary changes, `CmdArgCheck`
was introduced as a hacky patch. Now, almost all code could be written
as `cmd := NewCommand(); cmd.AddXxx(...)`, then there is no need for
`CmdArgCheck` anymore.
### Why many codes for `signArg == ""` is deleted?
Because in the old code, `signArg` could never be empty string, it's
either `-S[key-id]` or `--no-gpg-sign`. So the `signArg == ""` is just
dead code.
---------
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Diffstat (limited to 'services/mirror/mirror_push.go')
-rw-r--r-- | services/mirror/mirror_push.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/services/mirror/mirror_push.go b/services/mirror/mirror_push.go index c0c68a3f54..2c1b00b60c 100644 --- a/services/mirror/mirror_push.go +++ b/services/mirror/mirror_push.go @@ -37,10 +37,10 @@ func AddPushMirrorRemote(ctx context.Context, m *repo_model.PushMirror, addr str if _, _, err := cmd.RunStdString(&git.RunOpts{Dir: path}); err != nil { return err } - if _, _, err := git.NewCommand(ctx, "config", "--add", git.CmdArg("remote."+m.RemoteName+".push"), "+refs/heads/*:refs/heads/*").RunStdString(&git.RunOpts{Dir: path}); err != nil { + if _, _, err := git.NewCommand(ctx, "config", "--add").AddDynamicArguments("remote."+m.RemoteName+".push", "+refs/heads/*:refs/heads/*").RunStdString(&git.RunOpts{Dir: path}); err != nil { return err } - if _, _, err := git.NewCommand(ctx, "config", "--add", git.CmdArg("remote."+m.RemoteName+".push"), "+refs/tags/*:refs/tags/*").RunStdString(&git.RunOpts{Dir: path}); err != nil { + if _, _, err := git.NewCommand(ctx, "config", "--add").AddDynamicArguments("remote."+m.RemoteName+".push", "+refs/tags/*:refs/tags/*").RunStdString(&git.RunOpts{Dir: path}); err != nil { return err } return nil |