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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| Filesystem | ||
| ========== | ||
|
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| This package implements file system commands such as `ls`, `cd`, `rm`, `download`, `upload`, etc. | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,300 @@ | ||
| package update | ||
|
|
||
| /* | ||
| Sliver Implant Framework | ||
| Copyright (C) 2019 Bishop Fox | ||
| This program is free software: you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation, either version 3 of the License, or | ||
| (at your option) any later version. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/tls" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "log" | ||
| "net" | ||
| "net/http" | ||
| "net/url" | ||
| "os" | ||
| "os/user" | ||
| "path" | ||
| "path/filepath" | ||
| "runtime" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/AlecAivazis/survey/v2" | ||
| "github.com/bishopfox/sliver/client/assets" | ||
| "github.com/bishopfox/sliver/client/console" | ||
| "github.com/bishopfox/sliver/client/version" | ||
| "github.com/bishopfox/sliver/protobuf/commonpb" | ||
| "github.com/bishopfox/sliver/util" | ||
| "github.com/cheggaaa/pb/v3" | ||
| "github.com/desertbit/grumble" | ||
| ) | ||
|
|
||
| const ( | ||
| lastCheckFileName = "last_update_check" | ||
| ) | ||
|
|
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| func UpdateCmd(ctx *grumble.Context, con *console.SliverConsoleClient) { | ||
| VerboseVersionsCmd(ctx, con) | ||
|
|
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| timeout := time.Duration(ctx.Flags.Int("timeout")) * time.Second | ||
|
|
||
| insecure := ctx.Flags.Bool("insecure") | ||
| if insecure { | ||
| con.Println() | ||
| con.Println(console.Warn + "You're trying to update over an insecure connection, this is a really bad idea!") | ||
| confirm := false | ||
| prompt := &survey.Confirm{Message: "Recklessly update?"} | ||
| survey.AskOne(prompt, &confirm) | ||
| if !confirm { | ||
| return | ||
| } | ||
| confirm = false | ||
| prompt = &survey.Confirm{Message: "Seriously?"} | ||
| survey.AskOne(prompt, &confirm) | ||
| if !confirm { | ||
| return | ||
| } | ||
| } | ||
|
|
||
| proxy := ctx.Flags.String("proxy") | ||
| var proxyURL *url.URL = nil | ||
| var err error | ||
| if proxy != "" { | ||
| proxyURL, err = url.Parse(proxy) | ||
| if err != nil { | ||
| con.PrintErrorf("%s", err) | ||
| return | ||
| } | ||
| } | ||
|
|
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| client := &http.Client{ | ||
| Timeout: timeout, | ||
| Transport: &http.Transport{ | ||
| Dial: (&net.Dialer{ | ||
| Timeout: timeout, | ||
| }).Dial, | ||
| TLSHandshakeTimeout: timeout, | ||
| Proxy: http.ProxyURL(proxyURL), | ||
| TLSClientConfig: &tls.Config{ | ||
| InsecureSkipVerify: insecure, | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| con.Printf("\nChecking for updates ... ") | ||
| prereleases := ctx.Flags.Bool("prereleases") | ||
| release, err := version.CheckForUpdates(client, prereleases) | ||
| con.Printf("done!\n\n") | ||
| if err != nil { | ||
| con.PrintErrorf("Update check failed %s\n", err) | ||
| return | ||
| } | ||
|
|
||
| if release != nil { | ||
| saveTo, err := updateSavePath(ctx) | ||
| if err != nil { | ||
| con.PrintErrorf("%s\n", err) | ||
| return | ||
| } | ||
| updateAvailable(con, client, release, saveTo) | ||
| } else { | ||
| con.PrintInfof("No new releases.\n") | ||
| } | ||
| now := time.Now() | ||
| lastCheck := []byte(fmt.Sprintf("%d", now.Unix())) | ||
| appDir := assets.GetRootAppDir() | ||
| lastUpdateCheckPath := path.Join(appDir, lastCheckFileName) | ||
| err = ioutil.WriteFile(lastUpdateCheckPath, lastCheck, 0600) | ||
| if err != nil { | ||
| log.Printf("Failed to save update check time %s", err) | ||
| } | ||
| } | ||
|
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| // GetLastUpdateCheck - Get the timestap of the last update check, nil if none | ||
| func GetLastUpdateCheck() *time.Time { | ||
| appDir := assets.GetRootAppDir() | ||
| lastUpdateCheckPath := path.Join(appDir, lastCheckFileName) | ||
| data, err := ioutil.ReadFile(lastUpdateCheckPath) | ||
| if err != nil { | ||
| log.Printf("Failed to read last update check %s", err) | ||
| return nil | ||
| } | ||
| unixTime, err := strconv.Atoi(string(data)) | ||
| if err != nil { | ||
| log.Printf("Failed to parse last update check %s", err) | ||
| return nil | ||
| } | ||
| lastUpdate := time.Unix(int64(unixTime), 0) | ||
| return &lastUpdate | ||
| } | ||
|
|
||
| func VerboseVersionsCmd(ctx *grumble.Context, con *console.SliverConsoleClient) { | ||
| clientVer := version.FullVersion() | ||
| serverVer, err := con.Rpc.GetVersion(context.Background(), &commonpb.Empty{}) | ||
| if err != nil { | ||
| con.PrintErrorf("Failed to check server version %s\n", err) | ||
| return | ||
| } | ||
|
|
||
| con.PrintInfof("Client %s - %s/%s\n", clientVer, runtime.GOOS, runtime.GOARCH) | ||
| clientCompiledAt, _ := version.Compiled() | ||
| con.Printf(" Compiled at %s\n", clientCompiledAt) | ||
| con.Printf(" Compiled with %s\n\n", version.GoVersion) | ||
|
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| con.Println() | ||
| con.PrintInfof("Server v%d.%d.%d - %s - %s/%s\n", | ||
| serverVer.Major, serverVer.Minor, serverVer.Patch, serverVer.Commit, | ||
| serverVer.OS, serverVer.Arch) | ||
| serverCompiledAt := time.Unix(serverVer.CompiledAt, 0) | ||
| con.Printf(" Compiled at %s\n", serverCompiledAt) | ||
| } | ||
|
|
||
| func updateSavePath(ctx *grumble.Context) (string, error) { | ||
| saveTo := ctx.Flags.String("save") | ||
| if saveTo != "" { | ||
| fi, err := os.Stat(saveTo) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| if !fi.Mode().IsDir() { | ||
| return "", fmt.Errorf("'%s' is not a directory", saveTo) | ||
| } | ||
| return saveTo, nil | ||
| } | ||
| user, err := user.Current() | ||
| if err != nil { | ||
| return os.TempDir(), nil | ||
| } | ||
| if fi, err := os.Stat(filepath.Join(user.HomeDir, "Downloads")); !os.IsNotExist(err) { | ||
| if fi.Mode().IsDir() { | ||
| return filepath.Join(user.HomeDir, "Downloads"), nil | ||
| } | ||
| } | ||
| return user.HomeDir, nil | ||
| } | ||
|
|
||
| func hasAnySuffix(assetFileName string, suffixes []string) bool { | ||
| for _, suffix := range suffixes { | ||
| if strings.HasSuffix(assetFileName, suffix) { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } | ||
|
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| func findAssetFor(prefix string, suffixes []string, assets []version.Asset) *version.Asset { | ||
| for _, asset := range assets { | ||
| downloadURL, err := url.Parse(asset.BrowserDownloadURL) | ||
| if err != nil { | ||
| continue | ||
| } | ||
| assetFileName := filepath.Base(downloadURL.Path) | ||
| if strings.HasPrefix(assetFileName, prefix) && hasAnySuffix(assetFileName, suffixes) { | ||
| return &asset | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func serverAssetForGOOS(assets []version.Asset) *version.Asset { | ||
| suffixes := []string{fmt.Sprintf("_%s.zip", runtime.GOOS), runtime.GOOS} | ||
| if runtime.GOOS == "darwin" { | ||
| suffixes = []string{"_macos.zip", "_macos"} | ||
| if runtime.GOARCH == "arm64" { | ||
| suffixes = []string{"_macos-arm64.zip", "_macos-arm64"} | ||
| } | ||
| } | ||
| prefix := "sliver-server" | ||
| return findAssetFor(prefix, suffixes, assets) | ||
| } | ||
|
|
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| func clientAssetForGOOS(assets []version.Asset) *version.Asset { | ||
| suffixes := []string{fmt.Sprintf("_%s.zip", runtime.GOOS), runtime.GOOS} | ||
| if runtime.GOOS == "darwin" { | ||
| suffixes = []string{"_macos.zip", "_macos"} | ||
| if runtime.GOARCH == "arm64" { | ||
| suffixes = []string{"_macos-arm64.zip", "_macos-arm64"} | ||
| } | ||
| } | ||
| prefix := "sliver-client" | ||
| return findAssetFor(prefix, suffixes, assets) | ||
| } | ||
|
|
||
| func updateAvailable(con *console.SliverConsoleClient, client *http.Client, release *version.Release, saveTo string) { | ||
|
|
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| serverAsset := serverAssetForGOOS(release.Assets) | ||
| clientAsset := clientAssetForGOOS(release.Assets) | ||
|
|
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| fmt.Printf("New version available %s\n", release.TagName) | ||
| if serverAsset != nil { | ||
| fmt.Printf(" - Server: %s\n", util.ByteCountBinary(int64(serverAsset.Size))) | ||
| } | ||
| if clientAsset != nil { | ||
| fmt.Printf(" - Client: %s\n", util.ByteCountBinary(int64(clientAsset.Size))) | ||
| } | ||
| fmt.Println() | ||
|
|
||
| confirm := false | ||
| prompt := &survey.Confirm{ | ||
| Message: "Download update?", | ||
| } | ||
| survey.AskOne(prompt, &confirm) | ||
| if confirm { | ||
| fmt.Printf("Please wait ...") | ||
| err := downloadAsset(client, serverAsset, saveTo) | ||
| if err != nil { | ||
| con.PrintErrorf("%s\n", err) | ||
| return | ||
| } | ||
| err = downloadAsset(client, clientAsset, saveTo) | ||
| if err != nil { | ||
| con.PrintErrorf("%s\n", err) | ||
| return | ||
| } | ||
| con.Println(console.Clearln) | ||
| con.PrintInfof("Saved updates to: %s\n", saveTo) | ||
| } | ||
| } | ||
|
|
||
| func downloadAsset(client *http.Client, asset *version.Asset, saveTo string) error { | ||
| downloadURL, err := url.Parse(asset.BrowserDownloadURL) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| assetFileName := filepath.Base(downloadURL.Path) | ||
|
|
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| limit := int64(asset.Size) | ||
| writer, err := os.Create(filepath.Join(saveTo, assetFileName)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| resp, err := client.Get(asset.BrowserDownloadURL) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| bar := pb.Full.Start64(limit) | ||
| barReader := bar.NewProxyReader(resp.Body) | ||
| io.Copy(writer, barReader) | ||
| bar.Finish() | ||
| return nil | ||
| } |
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