├── .github └── workflows │ └── build.yaml ├── .gitignore ├── Dockerfile ├── LICENSE ├── README.md ├── client ├── client.go ├── logic.go └── pipeline.go ├── cmd └── parameter.go ├── go.mod ├── go.sum ├── html ├── favicon.ico ├── index.html └── index.js ├── lib ├── function.go └── message.go ├── main.go ├── main.syso ├── make ├── build.go ├── clean.go ├── debug.go ├── down.go ├── gen.go ├── go.mod ├── go.sum ├── make.go └── run.go ├── makefile ├── manifests └── statefulset.yaml ├── server ├── handler.go ├── pipeline.go └── server.go └── webshell.png /.github/workflows/build.yaml: -------------------------------------------------------------------------------- 1 | name: Docker Image CI 2 | 3 | on: 4 | push: 5 | tags: 6 | - '*' 7 | 8 | jobs: 9 | build: 10 | runs-on: ubuntu-latest 11 | steps: 12 | - name: Checkout Repo 13 | uses: actions/checkout@v2 14 | - name: Install Cosign 15 | uses: sigstore/cosign-installer@main 16 | with: 17 | cosign-release: 'v2.2.0' 18 | - name: Login Build Push 19 | run: | 20 | echo "${{ secrets.GITHUB_TOKEN }}" | docker login ${GHR} -u ${{ github.actor }} --password-stdin 21 | VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,') 22 | export DOCKER_BUILDKIT=1 23 | docker build -f Dockerfile -t ${GHR}/${{ github.repository_owner }}/${IMAGE}/${IMAGE}:${VERSION} . 24 | docker push ${GHR}/${{ github.repository_owner }}/${IMAGE}/${IMAGE}:${VERSION} 25 | echo "needs the cosign key here" 26 | #echo "${{ secrets.GITHUB_TOKEN }}" | cosignr login ${GHR} -u ${{ github.actor }} --password-stdin 27 | #cosign sign --key env://COSIGN_KEY --tlog-upload=false ${GHR}/${{ github.repository_owner }}/${IMAGE}/${IMAGE}:${VERSION} 28 | env: 29 | GHR: ghcr.io 30 | IMAGE: web-shell 31 | COSIGN_KEY: ${{secrets.COSIGN_KEY}} 32 | COSIGN_PASSWORD: ${{secrets.COSIGN_PASSWORD}} 33 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # IntelliJ project files 2 | .idea 3 | *.iml 4 | *.log 5 | gen/ 6 | out/ 7 | pkg/ 8 | test/ 9 | build/ 10 | target/ 11 | 12 | # Binaries for programs and plugins 13 | *.exe 14 | *.exe~ 15 | *.out 16 | *.dll 17 | *.lib 18 | *.so 19 | *.a 20 | *.dylib 21 | 22 | # Test binary, build with `go test -c` 23 | *.test 24 | 25 | # vscode 26 | .vscode/ 27 | __debug_bin 28 | 29 | # web-shell 30 | static_gen.go 31 | 32 | # min static file 33 | *.js 34 | *.css 35 | !index.js 36 | 37 | # tls file 38 | *.srl 39 | *.csr 40 | *.crt 41 | *.cet 42 | *.key 43 | *.pem 44 | *.public -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | FROM golang:1.21 AS build-env 2 | WORKDIR /app 3 | COPY . /app 4 | RUN useradd -u 1000 webshell 5 | RUN go mod tidy 6 | RUN go mod vendor 7 | RUN make gen 8 | RUN make 9 | 10 | FROM ubuntu:22.04 11 | # Upgrade system & install packages 12 | ENV DEBIAN_FRONTEND=noninteractive 13 | ENV TERM=linux 14 | RUN apt-get update && apt-get -y upgrade 15 | RUN apt-get install -y -o Dpkg::Options::=--force-confdef -o Dpkg::Options::=--force-confnew vim-tiny bash curl wget git telnet 16 | # Add kubectl 17 | RUN curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl && chmod +x kubectl && mv kubectl /usr/local/bin/ 18 | # Add web-shell 19 | COPY --from=build-env /app/web-shell /web-shell 20 | COPY --from=build-env /etc/passwd /etc/passwd 21 | COPY --from=build-env /etc/group /etc/group 22 | USER webshell 23 | WORKDIR /home/webshell 24 | # Set env vars 25 | ENV HOST=0.0.0.0 26 | ENV PORT=2020 27 | ENV USER=webshell 28 | ENV PASSWORD=webshell 29 | # Entrspoint oneliner 30 | ENTRYPOINT /web-shell -s -H ${HOST} -P ${PORT} -u ${USER} -p ${PASSWORD} 31 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # web-shell 2 | [what is a Web shell?](https://simple.wikipedia.org/wiki/Web_shell) 3 | 4 | ## Powered by 5 | Web Shell Powered by [gorilla/websocket](https://github.com/gorilla/websocket), [runletapp/go-console](https://github.com/runletapp/go-console) and [xtermjs/xterm.js](https://github.com/xtermjs/xterm.js). 6 | And windows need [rprichard/winpty](https://github.com/rprichard/winpty). 7 | 8 | ## Installation 9 | ### from source code 10 | ```bash 11 | git clone github.com/jiangklijna/web-shell 12 | cd web-shell 13 | make gen 14 | make 15 | ``` 16 | ### from release 17 | [releases](https://github.com/JiangKlijna/web-shell/releases) 18 | 19 | ## Help 20 | ```bash 21 | $ web-shell -h 22 | Usage: 23 | web-shell [-s server mode] [-c client mode] [-P port] [-u username] [-p password] [-cmd command] 24 | 25 | Example: 26 | web-shell -s -P 2020 -u admin -p admin -cmd bash 27 | web-shell -c -H 192.168.1.1 -P 2020 -u admin -p admin 28 | 29 | Options: 30 | -C string 31 | crt file 32 | -H string 33 | connect to host (default "127.0.0.1") 34 | -K string 35 | key file 36 | -P string 37 | listening port (default "2020") 38 | -RC string 39 | root crt file 40 | -c client mode 41 | -cmd string 42 | command cmd or bash 43 | -cp string 44 | content path 45 | -h this help 46 | -https 47 | enable https 48 | -p string 49 | password (default "webshell") 50 | -s server mode 51 | -u string 52 | username (default "admin") 53 | -v show version and exit 54 | ``` 55 | 56 | ## Installed on Kubernetes 57 | 58 | Apply an example [StatefulSet](./manifests/statefulset.yaml) with Service & RBAC to your cluster: 59 | 60 | ```bash 61 | kubectl apply -f manifests/statefulset.yaml 62 | ``` 63 | 64 | Service will be reachable on Port 80: 65 | 66 | webshell 67 | 68 | You can extend RBAC setting to reach more resource in the cluster. Or expose the Service with Ingress. 69 | 70 | ## License 71 | Source code in **web-shell** is available under the [GPL-3.0 License](https://github.com/JiangKlijna/web-shell/blob/master/LICENSE). 72 | -------------------------------------------------------------------------------- /client/client.go: -------------------------------------------------------------------------------- 1 | package client 2 | 3 | import ( 4 | "crypto/tls" 5 | "encoding/json" 6 | "errors" 7 | "fmt" 8 | "io/ioutil" 9 | "log" 10 | "net/http" 11 | "runtime" 12 | "strconv" 13 | 14 | "github.com/gorilla/websocket" 15 | "github.com/jiangklijna/web-shell/lib" 16 | ) 17 | 18 | // Version WebShell Client current version 19 | const Version = "1.0" 20 | 21 | // UserAgent Request header[User-Agent] 22 | var UserAgent = fmt.Sprintf("web-shell-client/%s (%s; %s; %s)", Version, runtime.GOOS, runtime.GOARCH, runtime.Version()) 23 | 24 | // WebShellClient connect to WebShellServer 25 | type WebShellClient struct { 26 | Client *http.Client 27 | Dialer *websocket.Dialer 28 | } 29 | 30 | // Init http client 31 | func (c *WebShellClient) Init(https bool, crt, key, rootcrt string) { 32 | if https { 33 | tlsConfig := &tls.Config{} 34 | if crt != "" && key != "" && rootcrt != "" { 35 | cliCrt, err := tls.LoadX509KeyPair(crt, key) 36 | if err != nil { 37 | log.Fatalln("Load crt or key file failed:", err.Error()) 38 | } 39 | tlsConfig.RootCAs = lib.ReadCertPool(rootcrt) 40 | tlsConfig.Certificates = []tls.Certificate{cliCrt} 41 | } else if crt != "" { 42 | tlsConfig.RootCAs = lib.ReadCertPool(crt) 43 | } else { 44 | tlsConfig.InsecureSkipVerify = true 45 | } 46 | c.Client = &http.Client{Transport: &http.Transport{TLSClientConfig: tlsConfig}} 47 | c.Dialer = &websocket.Dialer{TLSClientConfig: tlsConfig} 48 | } else { 49 | c.Client = &http.Client{} 50 | c.Dialer = &websocket.Dialer{} 51 | } 52 | } 53 | 54 | // Run WebShellClient 55 | func (c *WebShellClient) Run(https bool, username, password, host, post, contentpath string) { 56 | path, err := LoginServer(https, username, password, host, post, contentpath, c.GetJSON) 57 | if err != nil { 58 | log.Println("Login to Server failed:", err.Error()) 59 | return 60 | } 61 | ConnectSocket(https, host, post, contentpath, path, UserAgent, c.GetWebsocket) 62 | } 63 | 64 | // GetRes http get request 65 | func (c *WebShellClient) GetRes(url string) (*http.Response, error) { 66 | req, err := http.NewRequest("GET", url, nil) 67 | req.Header.Set("User-Agent", UserAgent) 68 | if err != nil { 69 | return nil, err 70 | } 71 | return c.Client.Do(req) 72 | } 73 | 74 | // GetJSON http get request and parse JSON 75 | func (c *WebShellClient) GetJSON(url string) (map[string]interface{}, error) { 76 | res, err := c.GetRes(url) 77 | if err != nil { 78 | return nil, err 79 | } 80 | defer res.Body.Close() 81 | if res.StatusCode < 200 || res.StatusCode >= 300 { 82 | return nil, errors.New("response status is " + strconv.Itoa(res.StatusCode)) 83 | } 84 | bytes, err := ioutil.ReadAll(res.Body) 85 | if err != nil { 86 | return nil, err 87 | } 88 | data := make(map[string]interface{}) 89 | err = json.Unmarshal(bytes, &data) 90 | return data, err 91 | } 92 | 93 | // GetWebsocket get websocket connection 94 | func (c *WebShellClient) GetWebsocket(url string) (*websocket.Conn, error) { 95 | h := make(http.Header) 96 | h["User-Agent"] = []string{UserAgent} 97 | skt, _, err := c.Dialer.Dial(url, h) 98 | return skt, err 99 | } 100 | -------------------------------------------------------------------------------- /client/logic.go: -------------------------------------------------------------------------------- 1 | package client 2 | 3 | import ( 4 | "errors" 5 | "log" 6 | 7 | "github.com/gorilla/websocket" 8 | ) 9 | 10 | // LoginServer get websocket path 11 | func LoginServer(https bool, username, password, host, port, contentpath string, get func(url string) (map[string]interface{}, error)) (string, error) { 12 | protocol := "http" 13 | if https { 14 | protocol = "https" 15 | } 16 | var LoginURL = protocol + "://" + host + ":" + port + contentpath + "/login" 17 | data, err := get(LoginURL + "?username=" + username + "&password=" + password) 18 | if err != nil { 19 | return "", err 20 | } 21 | if data["code"] != 0.0 { 22 | return "", errors.New(data["msg"].(string)) 23 | } 24 | return data["path"].(string), nil 25 | } 26 | 27 | // ConnectSocket c 28 | func ConnectSocket(https bool, host, port, contentpath, path, UserAgent string, conn func(url string) (*websocket.Conn, error)) { 29 | protocol := "ws" 30 | if https { 31 | protocol = "wss" 32 | } 33 | skt, err := conn(protocol + "://" + host + ":" + port + contentpath + "/cmd/" + path) 34 | if err != nil { 35 | log.Println("Connect to WebSocket failed:", err.Error()) 36 | return 37 | } 38 | pl, _ := NewPipeLine(skt) 39 | 40 | logChan := make(chan string) 41 | go pl.ReadSktAndWriteStdio(logChan) 42 | go pl.ReadStdioAndWriteSkt(logChan) 43 | 44 | errlog := <-logChan 45 | log.Println(errlog) 46 | go func() { 47 | <-logChan 48 | close(logChan) 49 | }() 50 | } 51 | -------------------------------------------------------------------------------- /client/pipeline.go: -------------------------------------------------------------------------------- 1 | package client 2 | 3 | import ( 4 | "encoding/json" 5 | "fmt" 6 | "io" 7 | "os" 8 | 9 | "github.com/gorilla/websocket" 10 | "github.com/jiangklijna/web-shell/lib" 11 | "github.com/nsf/termbox-go" 12 | ) 13 | 14 | // PipeLine Connect websocket and childprocess 15 | type PipeLine struct { 16 | skt *websocket.Conn 17 | } 18 | 19 | // NewPipeLine Malloc PipeLine 20 | func NewPipeLine(conn *websocket.Conn) (*PipeLine, error) { 21 | return &PipeLine{conn}, nil 22 | } 23 | 24 | // ReadSktAndWriteStdio read skt and write stdout 25 | func (w *PipeLine) ReadSktAndWriteStdio(logChan chan string) { 26 | for { 27 | mt, payload, err := w.skt.ReadMessage() 28 | if err != nil && err != io.EOF { 29 | logChan <- fmt.Sprintf("Error ReadSktAndWriteTer websocket ReadMessage failed: %s", err) 30 | return 31 | } 32 | if mt != websocket.TextMessage { 33 | logChan <- fmt.Sprintf("Error ReadSktAndWriteTer Invalid message type %d", mt) 34 | return 35 | } 36 | os.Stdout.Write(payload) 37 | } 38 | } 39 | 40 | // ReadStdioAndWriteSkt read stdin and write skt 41 | func (w *PipeLine) ReadStdioAndWriteSkt(logChan chan string) { 42 | err := termbox.Init() 43 | if err != nil { 44 | logChan <- fmt.Sprintf("Error ReadTerAndWriteSkt Init Termbox failed: %s", err) 45 | return 46 | } 47 | defer termbox.Close() 48 | for { 49 | var msg lib.MessageClient 50 | switch ev := termbox.PollEvent(); ev.Type { 51 | case termbox.EventKey: 52 | if ev.Ch == 0 { 53 | ev.Ch = rune(ev.Key) 54 | } 55 | msg = lib.MessageClient{Type: lib.TypeData, Data: string(ev.Ch)} 56 | case termbox.EventResize: 57 | msg = lib.MessageClient{Type: lib.TypeResize, Data: []termbox.Attribute{termbox.ColorDefault, termbox.ColorDefault}} 58 | case termbox.EventError: 59 | logChan <- fmt.Sprintf("Error ReadTerAndWriteSkt Termbox PollEvent failed: %s", err) 60 | return 61 | default: 62 | break 63 | } 64 | data, err := json.Marshal(msg) 65 | if err != nil { 66 | logChan <- fmt.Sprintf("Error ReadTerAndWriteSkt json.Marshal failed: %s", err) 67 | return 68 | } 69 | err = w.skt.WriteMessage(websocket.TextMessage, data) 70 | if err != nil { 71 | logChan <- fmt.Sprintf("Error ReadTerAndWriteSkt skt write failed: %s", err) 72 | return 73 | } 74 | } 75 | } 76 | -------------------------------------------------------------------------------- /cmd/parameter.go: -------------------------------------------------------------------------------- 1 | package cmd 2 | 3 | import ( 4 | "flag" 5 | "os" 6 | "runtime" 7 | "strconv" 8 | "strings" 9 | 10 | "github.com/jiangklijna/web-shell/client" 11 | "github.com/jiangklijna/web-shell/server" 12 | ) 13 | 14 | // Parameter Command line parameters 15 | type Parameter struct { 16 | Server bool 17 | Client bool 18 | HTTPS bool 19 | Host string 20 | Port string 21 | Username string 22 | Password string 23 | Command string 24 | ContentPath string 25 | CrtFile string 26 | KeyFile string 27 | RootCrtFile string 28 | } 29 | 30 | // Init Parameter 31 | func (parms *Parameter) Init() { 32 | var ( 33 | help, version bool 34 | ) 35 | flag.BoolVar(&help, "h", false, "this help") 36 | flag.BoolVar(&version, "v", false, "show version and exit") 37 | flag.BoolVar(&(parms.Server), "s", false, "server mode") 38 | flag.BoolVar(&(parms.Client), "c", false, "client mode") 39 | flag.BoolVar(&(parms.HTTPS), "https", false, "enable https") 40 | flag.StringVar(&(parms.Host), "H", "127.0.0.1", "connect to host") 41 | flag.StringVar(&(parms.Port), "P", "2020", "listening port") 42 | flag.StringVar(&(parms.Username), "u", "admin", "username") 43 | flag.StringVar(&(parms.Password), "p", "webshell", "password") 44 | flag.StringVar(&(parms.Command), "cmd", "", "command cmd or bash") 45 | flag.StringVar(&(parms.ContentPath), "cp", "", "content path") 46 | flag.StringVar(&(parms.CrtFile), "C", "", "crt file") 47 | flag.StringVar(&(parms.KeyFile), "K", "", "key file") 48 | flag.StringVar(&(parms.RootCrtFile), "RC", "", "root crt file") 49 | 50 | flag.Parse() 51 | if help { 52 | printUsage() 53 | flag.PrintDefaults() 54 | os.Exit(1) 55 | } else if version { 56 | printVersion() 57 | os.Exit(1) 58 | } else { 59 | parms.organize() 60 | } 61 | } 62 | 63 | // Run start server or client 64 | func (parms *Parameter) Run() { 65 | if parms.Server { 66 | s := new(server.WebShellServer) 67 | s.Init(parms.Username, parms.Password, parms.Command, parms.ContentPath) 68 | s.Run(parms.HTTPS, parms.Port, parms.CrtFile, parms.KeyFile, parms.RootCrtFile) 69 | } else if parms.Client { 70 | c := new(client.WebShellClient) 71 | c.Init(parms.HTTPS, parms.CrtFile, parms.KeyFile, parms.RootCrtFile) 72 | c.Run(parms.HTTPS, parms.Username, parms.Password, parms.Host, parms.Port, parms.ContentPath) 73 | } 74 | } 75 | 76 | // Organize command line parameters 77 | func (parms *Parameter) organize() { 78 | if (parms.Server && parms.Client) || (!parms.Server && !parms.Client) { 79 | println("select server mode OR client mode.") 80 | os.Exit(1) 81 | } 82 | if parms.Server && parms.HTTPS && (parms.CrtFile == "" || parms.KeyFile == "") { 83 | println("the crt file and key file are required in server mode.") 84 | os.Exit(1) 85 | } 86 | _, err := strconv.Atoi(parms.Port) 87 | if err != nil { 88 | println("Port must be an int, not" + parms.Port) 89 | os.Exit(1) 90 | } 91 | parms.Command = strings.Trim(parms.Command, " ") 92 | if parms.Command == "" { 93 | parms.Command = defaultCommand() 94 | } 95 | parms.ContentPath = strings.Trim(parms.ContentPath, " ") 96 | if len(parms.ContentPath) > 0 { 97 | if parms.ContentPath[0] != '/' { 98 | println("ContentPath must start with /, not", parms.ContentPath) 99 | os.Exit(1) 100 | } 101 | if parms.ContentPath[len(parms.ContentPath)-1] == '/' { 102 | println("ContentPath connot end with /, not", parms.ContentPath) 103 | os.Exit(1) 104 | } 105 | } 106 | } 107 | 108 | func printUsage() { 109 | println(`Usage: 110 | web-shell [-s server mode] [-c client mode] [-P port] [-u username] [-p password] [-cmd command] 111 | 112 | Example: 113 | web-shell -s -P 2020 -u admin -p admin -cmd bash 114 | web-shell -c -H 192.168.1.1 -P 2020 -u admin -p admin 115 | 116 | Options:`) 117 | } 118 | 119 | func printVersion() { 120 | println("web-shell server version:", server.Version) 121 | println("web-shell client version:", client.Version) 122 | } 123 | 124 | func defaultCommand() string { 125 | if runtime.GOOS == "windows" { 126 | return "cmd" 127 | } 128 | return "bash" 129 | } 130 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/jiangklijna/web-shell 2 | 3 | go 1.14 4 | 5 | require ( 6 | aidanwoods.dev/go-paseto v1.2.0 7 | github.com/gorilla/websocket v1.4.2 8 | github.com/mattn/go-runewidth v0.0.9 // indirect 9 | github.com/nsf/termbox-go v0.0.0-20200418040025-38ba6e5628f1 10 | github.com/runletapp/go-console v0.0.0-20211204140000-27323a28410a 11 | ) 12 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | aidanwoods.dev/go-paseto v1.2.0 h1:rHmD2Q+cM9CQ1Ia94WT9YZBmMettu2mLyxtw+bg8ZeM= 2 | aidanwoods.dev/go-paseto v1.2.0/go.mod h1:r9pU9VBs5sn5WO5mOeYSOQTrTDSyCnbVT/dA7QTFAdc= 3 | github.com/creack/pty v1.1.17 h1:QeVUsEDNrLBW4tMgZHvxy18sKtr6VI492kBhUfhDJNI= 4 | github.com/creack/pty v1.1.17/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4= 5 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 6 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 7 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc= 9 | github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE= 10 | github.com/iamacarpet/go-winpty v1.0.2 h1:jwPVTYrjAHZx6Mcm6K5i9G4opMp5TblEHH5EQCl/Gzw= 11 | github.com/iamacarpet/go-winpty v1.0.2/go.mod h1:/GHKJicG/EVRQIK1IQikMYBakBkhj/3hTjLgdzYsmpI= 12 | github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0= 13 | github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= 14 | github.com/nsf/termbox-go v0.0.0-20200418040025-38ba6e5628f1 h1:lh3PyZvY+B9nFliSGTn5uFuqQQJGuNrD0MLCokv09ag= 15 | github.com/nsf/termbox-go v0.0.0-20200418040025-38ba6e5628f1/go.mod h1:IuKpRQcYE1Tfu+oAQqaLisqDeXgjyyltCfsaoYN18NQ= 16 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 17 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 18 | github.com/runletapp/go-console v0.0.0-20211204140000-27323a28410a h1:1hh8CSomjZSJPk7AgHV8o33Su13bZby81PrC6pIvJqQ= 19 | github.com/runletapp/go-console v0.0.0-20211204140000-27323a28410a/go.mod h1:9Y3jw1valnPKqsYSsBWxQNAuxqNSBuwd2ZEeElxgNUI= 20 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 21 | github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= 22 | github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 23 | golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa h1:zuSxTR4o9y82ebqCUJYNGJbGPo6sKVl54f/TVDObg1c= 24 | golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= 25 | golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= 26 | golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 27 | golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 28 | golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 29 | golang.org/x/sys v0.0.0-20220804214406-8e32c043e418 h1:9vYwv7OjYaky/tlAeD7C4oC9EsPTlaFl1H2jS++V+ME= 30 | golang.org/x/sys v0.0.0-20220804214406-8e32c043e418/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= 31 | golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= 32 | golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= 33 | golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= 34 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= 35 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 36 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 37 | gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo= 38 | gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 39 | -------------------------------------------------------------------------------- /html/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JiangKlijna/web-shell/529e933024c3fae6b5d4bffcbd9185bf7ab47c1d/html/favicon.ico -------------------------------------------------------------------------------- /html/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | web shell 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 28 | 29 | 30 | -------------------------------------------------------------------------------- /html/index.js: -------------------------------------------------------------------------------- 1 | /** 2 | * @author jiangklijna 3 | */ 4 | 5 | // init 6 | (function (W) { 7 | W.DataType = { 8 | Err: 0, 9 | Data: 1, 10 | Resize: 2, 11 | }; 12 | W.FitAddon = FitAddon.FitAddon; 13 | W.WebglAddon = WebglAddon.WebglAddon; 14 | W.WebLinksAddon = WebLinksAddon.WebLinksAddon; 15 | 16 | W.NewWebSocket = function (path) { 17 | return new WebSocket((location.protocol === 'https:' ? 'wss://' : 'ws://') + location.host + location.pathname + "cmd/" + path); 18 | }; 19 | W.NewTerminal = function () { 20 | return new Terminal({ useStyle: true, screenKeys: true }); 21 | }; 22 | W.GetByAjax = function (url, callback) { 23 | var ajax = new XMLHttpRequest(); 24 | ajax.open("GET", url); 25 | ajax.onreadystatechange = function () { 26 | if (ajax.readyState == 4 && ajax.status == 200) { 27 | callback(JSON.parse(ajax.responseText), ajax); 28 | } 29 | } 30 | ajax.send(); 31 | } 32 | })(window); 33 | 34 | // web-shell login: 35 | // Password: 36 | // Login incorrect 37 | 38 | // web-shell component 39 | window.WebShell = function (dom) { 40 | var conn = null; 41 | var term = NewTerminal(); 42 | var fitAddon = new FitAddon(); 43 | var webglAddon = new WebglAddon(); 44 | var webLinksAddon = new WebLinksAddon(); 45 | 46 | var sendData = function (dataType, data) { 47 | if (conn != null) 48 | conn.send(JSON.stringify({ 't': dataType, "d": data })); 49 | }; 50 | 51 | var onLoginSuccess = function (path) { 52 | conn = NewWebSocket(path); 53 | // websocket connect 54 | conn.onclose = function (e) { 55 | term.writeln("connection closed."); 56 | }; 57 | 58 | conn.onopen = function () { 59 | fitAddon.fit(); 60 | }; 61 | 62 | conn.onmessage = function (msg) { 63 | window.data = msg.data; 64 | term.write(msg.data); 65 | }; 66 | 67 | term.onResize(function (data) { 68 | sendData(DataType.Resize, [data.cols, data.rows]); 69 | }); 70 | term.onData(function (data) { 71 | sendData(DataType.Data, data); 72 | }); 73 | }; 74 | 75 | // terminal term 76 | term.onTitleChange(function (title) { document.title = title; }); 77 | term.open(dom); 78 | 79 | // webshell login module 80 | (function () { 81 | var isInput = true; 82 | var tag = 1; 83 | var secret = ""; 84 | var username = ""; 85 | var password = ""; 86 | 87 | (function () { 88 | isInput = false; 89 | var token = ('web-shell-token' in sessionStorage) ? sessionStorage.getItem("web-shell-token") : ''; 90 | GetByAjax("login?token=" + token, function (data) { 91 | if (data.code == 0) { 92 | isInput = false; 93 | onLoginSuccess(data.path); 94 | } else { 95 | secret = data.secret; 96 | isInput = true; 97 | term.write("Web Shell login:"); 98 | } 99 | }); 100 | })(); 101 | 102 | var doLogin = function () { 103 | isInput = false; 104 | GetByAjax("login?username=" + username + "&password=" + password, function (data) { 105 | tag = 1; 106 | username = ""; 107 | password = ""; 108 | if (data.code == 0) { 109 | isInput = false; 110 | sessionStorage.setItem("web-shell-token", data.path); 111 | onLoginSuccess(data.path); 112 | } else { 113 | isInput = true; 114 | term.writeln(data.msg); 115 | term.write("\nWeb Shell login:"); 116 | } 117 | }); 118 | } 119 | var BackSpacePrev = [27, 91, 63, 50, 53, 108, 13].map(function (e) { return String.fromCharCode(e) }).join(''); 120 | var BackSpaceNext = [27, 91, 48, 75, 27, 91, 63, 50, 53, 104].map(function (e) { return String.fromCharCode(e) }).join(''); 121 | 122 | term.onData(function (data) { 123 | if (!isInput) return; 124 | if (data.charCodeAt(0) == 13) { 125 | term.writeln(""); 126 | if (tag == 1) { 127 | tag++; 128 | term.write("Password:"); 129 | } else { 130 | doLogin(); 131 | } 132 | } else if (data.charCodeAt(0) == 127) { 133 | if (tag == 1) { 134 | username = username.substr(0, username.length - 1); 135 | term.write(BackSpacePrev + "Web Shell login:" + username + BackSpaceNext); 136 | } else { 137 | password = password.substr(0, password.length - 1); 138 | } 139 | } else { 140 | if (tag == 1) { 141 | term.write(data); 142 | username += data; 143 | } else { 144 | password += data; 145 | } 146 | } 147 | }); 148 | })(); 149 | 150 | 151 | term.loadAddon(fitAddon); 152 | term.loadAddon(webglAddon); 153 | term.loadAddon(webLinksAddon); 154 | 155 | this.fit = function () { 156 | fitAddon.fit(); 157 | }; 158 | this.term = term; 159 | this.conn = conn; 160 | 161 | dom.oncontextmenu = function () { 162 | if (term.hasSelection()) { 163 | sendData(DataType.Data, term.getSelection()); 164 | return false; 165 | } 166 | return true; 167 | } 168 | }; 169 | 170 | // run 171 | window.onload = function () { 172 | var dom = document.createElement("div"); 173 | dom.className = "console"; 174 | document.body.appendChild(dom); 175 | this.singleWebShell = new WebShell(dom); 176 | this.onresize = function () { 177 | this.singleWebShell.fit(); 178 | } 179 | this.onresize(); 180 | }; 181 | -------------------------------------------------------------------------------- /lib/function.go: -------------------------------------------------------------------------------- 1 | package lib 2 | 3 | import ( 4 | "crypto/x509" 5 | "io/ioutil" 6 | "log" 7 | ) 8 | 9 | // ReadCertPool get CertPool by crt file 10 | func ReadCertPool(crt string) *x509.CertPool { 11 | _crt, err := ioutil.ReadFile(crt) 12 | if err != nil { 13 | log.Fatalln("Read crt file failed:", err.Error()) 14 | } 15 | pool := x509.NewCertPool() 16 | if !pool.AppendCertsFromPEM(_crt) { 17 | log.Fatalln("Load crt file failed.") 18 | } 19 | return pool 20 | } 21 | -------------------------------------------------------------------------------- /lib/message.go: -------------------------------------------------------------------------------- 1 | package lib 2 | 3 | import "encoding/json" 4 | 5 | // Message.Type 6 | const ( 7 | TypeErr = iota 8 | TypeData 9 | TypeResize 10 | ) 11 | 12 | // Message Websocket Communication data format 13 | type Message struct { 14 | Type int `json:"t"` 15 | Data json.RawMessage `json:"d"` 16 | } 17 | 18 | // MessageClient Websocket Communication data format 19 | type MessageClient struct { 20 | Type int `json:"t"` 21 | Data interface{} `json:"d"` 22 | } 23 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "github.com/jiangklijna/web-shell/cmd" 5 | ) 6 | 7 | func main() { 8 | parms := new(cmd.Parameter) 9 | parms.Init() 10 | parms.Run() 11 | } 12 | -------------------------------------------------------------------------------- /main.syso: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JiangKlijna/web-shell/529e933024c3fae6b5d4bffcbd9185bf7ab47c1d/main.syso -------------------------------------------------------------------------------- /make/build.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "os/exec" 5 | ) 6 | 7 | // MakeBuild Compile and Generate executable file 8 | func MakeBuild() { 9 | res, err := exec.Command("go", "build").CombinedOutput() 10 | if err != nil { 11 | println("web-shell build failed:", err.Error(), "\n", string(res)) 12 | } else { 13 | println("web-shell build success.") 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /make/clean.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import "os" 4 | 5 | // MakeClean go clean && delete gen_go_file 6 | func MakeClean() { 7 | invoke("go", "clean") 8 | os.Remove(staticGenGoFile) 9 | } 10 | -------------------------------------------------------------------------------- /make/debug.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import "os" 4 | 5 | // MakeDebug clean -> down -> build 6 | func MakeDebug() { 7 | MakeClean() 8 | MakeDown() 9 | MakeBuild() 10 | invoke(append([]string{"./web-shell"}, os.Args[2:]...)...) 11 | } 12 | -------------------------------------------------------------------------------- /make/down.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "errors" 5 | "io/ioutil" 6 | "net/http" 7 | "strconv" 8 | "strings" 9 | ) 10 | 11 | // MakeDown download static resources 12 | func MakeDown() { 13 | for _, url := range staticFiles { 14 | name := last(strings.Split(url, "/")) 15 | filename := staticDir + "/" + name 16 | exist := fileExists(filename) 17 | if exist { 18 | println(filename, "already exist") 19 | continue 20 | } 21 | data, err := httpGet(url) 22 | if err != nil { 23 | panic(err) 24 | } 25 | err = ioutil.WriteFile(filename, data, 0664) 26 | if err != nil { 27 | panic(err) 28 | } 29 | println(filename, "download successful") 30 | } 31 | } 32 | 33 | func httpGet(url string) ([]byte, error) { 34 | res, err := http.Get(url) 35 | if err != nil { 36 | return nil, err 37 | } 38 | defer res.Body.Close() 39 | if res.StatusCode < 200 || res.StatusCode >= 300 { 40 | return nil, errors.New("response status is " + strconv.Itoa(res.StatusCode)) 41 | } 42 | return ioutil.ReadAll(res.Body) 43 | } 44 | -------------------------------------------------------------------------------- /make/gen.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "io" 5 | "io/ioutil" 6 | "os" 7 | "strconv" 8 | "strings" 9 | "time" 10 | 11 | "github.com/tdewolff/minify/v2" 12 | "github.com/tdewolff/minify/v2/css" 13 | "github.com/tdewolff/minify/v2/html" 14 | "github.com/tdewolff/minify/v2/js" 15 | ) 16 | 17 | func compressStatic(m *minify.M, filename string) ([]byte, error) { 18 | ext := last(strings.Split(filename, ".")) 19 | bs, err := ioutil.ReadFile(filename) 20 | if err != nil { 21 | return nil, err 22 | } 23 | if ext != "js" && ext != "css" && ext != "html" { 24 | return bs, nil 25 | } 26 | return m.Bytes(ext, bs) 27 | } 28 | 29 | // MakeGen generate staticGenGoFile 30 | func MakeGen() { 31 | m := minify.New() 32 | m.AddFunc("css", css.Minify) 33 | m.AddFunc("html", html.Minify) 34 | m.AddFunc("js", js.Minify) 35 | 36 | genTime := strconv.FormatInt(time.Now().Unix(), 10) 37 | 38 | MakeDown() 39 | f, err := os.Create(staticGenGoFile) 40 | if err != nil { 41 | panic(err) 42 | } 43 | io.WriteString(f, `package server 44 | import ( 45 | "bytes" 46 | "errors" 47 | "net/http" 48 | "os" 49 | "time" 50 | ) 51 | var modtime = time.Unix(`+genTime+`, 0) 52 | var errNotDir = errors.New("Not a folder") 53 | // MemoryFile Read R file 54 | type MemoryFile struct { 55 | *bytes.Reader 56 | size int64 57 | name string 58 | isDir bool 59 | } 60 | func (m *MemoryFile) Close() error { 61 | return nil 62 | } 63 | func (m *MemoryFile) Readdir(count int) ([]os.FileInfo, error) { 64 | return nil, errNotDir 65 | } 66 | func (m *MemoryFile) Stat() (os.FileInfo, error) { 67 | return m, nil 68 | } 69 | func (m *MemoryFile) Name() string { 70 | return m.name 71 | } 72 | func (m *MemoryFile) Size() int64 { 73 | return m.size 74 | } 75 | func (m *MemoryFile) Mode() os.FileMode { 76 | return os.ModePerm 77 | } 78 | func (m *MemoryFile) ModTime() time.Time { 79 | return modtime 80 | } 81 | func (m *MemoryFile) IsDir() bool { 82 | return m.isDir 83 | } 84 | func (m *MemoryFile) Sys() interface{} { 85 | return nil 86 | } 87 | // FakeFileSystem Read R file system 88 | type FakeFileSystem struct { 89 | } 90 | // Open open resources by R 91 | func (ffs FakeFileSystem) Open(name string) (http.File, error) { 92 | if data, ok := R[name]; ok { 93 | if data != nil { 94 | return &MemoryFile{bytes.NewReader(data), int64(len(data)), name, false}, nil 95 | } 96 | return &MemoryFile{nil, 0, name, true}, nil 97 | } 98 | return nil, os.ErrNotExist 99 | } 100 | func init() { 101 | StaticHandler = http.FileServer(&FakeFileSystem{}) 102 | } 103 | // R Static file resources 104 | var R = map[string][]byte{`) 105 | getFiles(staticDir, func(sf *staticFile) { 106 | if sf == nil { 107 | return 108 | } 109 | if sf.isDir { 110 | io.WriteString(f, "\n\t\"/"+sf.path) 111 | io.WriteString(f, `":nil,`) 112 | } else { 113 | bs, err := compressStatic(m, sf.name) 114 | if err != nil { 115 | println(sf.name) 116 | panic(err) 117 | } 118 | io.WriteString(f, "\n\t\"/"+sf.path) 119 | io.WriteString(f, `":{`) 120 | for _, b := range bs { 121 | io.WriteString(f, strconv.Itoa(int(b))) 122 | io.WriteString(f, ",") 123 | } 124 | io.WriteString(f, "},") 125 | } 126 | println(sf.name, "generate successful") 127 | }) 128 | io.WriteString(f, "\n\t\"/\":nil,") 129 | io.WriteString(f, "\n}") 130 | if err := f.Close(); err != nil { 131 | panic(err) 132 | } 133 | } 134 | 135 | // staticFile file info 136 | type staticFile struct { 137 | isDir bool 138 | name, path string 139 | } 140 | 141 | // getFiles func(string, func(*StaticFile)) 142 | func getFiles(dir string, callback func(*staticFile)) { 143 | fs, err := ioutil.ReadDir(dir) 144 | if err != nil { 145 | panic(err) 146 | } 147 | for _, f := range fs { 148 | name := dir + "/" + f.Name() 149 | sf := &staticFile{f.IsDir(), name, name[len(staticDir)+1:]} 150 | callback(sf) 151 | if f.IsDir() { 152 | getFiles(name, callback) 153 | } 154 | } 155 | } 156 | -------------------------------------------------------------------------------- /make/go.mod: -------------------------------------------------------------------------------- 1 | module web-shell-make 2 | 3 | go 1.14 4 | 5 | require ( 6 | github.com/tdewolff/minify/v2 v2.9.10 7 | github.com/tdewolff/parse/v2 v2.5.7 // indirect 8 | ) 9 | -------------------------------------------------------------------------------- /make/go.sum: -------------------------------------------------------------------------------- 1 | github.com/cheekybits/is v0.0.0-20150225183255-68e9c0620927/go.mod h1:h/aW8ynjgkuj+NQRlZcDbAbM1ORAbXjXX77sX7T289U= 2 | github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= 3 | github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= 4 | github.com/matryer/try v0.0.0-20161228173917-9ac251b645a2/go.mod h1:0KeJpeMD6o+O4hW7qJOT7vyQPKrWmj26uf5wMc/IiIs= 5 | github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= 6 | github.com/tdewolff/minify/v2 v2.9.10 h1:p+ifTTl+JMFFLDYNAm7nxQ9XuCG10HTW00wlPAZ7aoE= 7 | github.com/tdewolff/minify/v2 v2.9.10/go.mod h1:U1Nc+/YBSB0FPEarqcgkYH3Ep4DNyyIbOyl5P4eWMuo= 8 | github.com/tdewolff/parse/v2 v2.5.5/go.mod h1:WzaJpRSbwq++EIQHYIRTpbYKNA3gn9it1Ik++q4zyho= 9 | github.com/tdewolff/parse/v2 v2.5.7 h1:9JGh56thUIzOjJdMbAF98FJZ53/zxElrMTj37PojEhs= 10 | github.com/tdewolff/parse/v2 v2.5.7/go.mod h1:WzaJpRSbwq++EIQHYIRTpbYKNA3gn9it1Ik++q4zyho= 11 | github.com/tdewolff/test v1.0.6/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE= 12 | golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 13 | golang.org/x/sys v0.0.0-20200724161237-0e2f3a69832c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= 14 | -------------------------------------------------------------------------------- /make/make.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "fmt" 5 | "os" 6 | "os/exec" 7 | ) 8 | 9 | // MakeRemark make description 10 | const MakeRemark = `web-shell Project Build Tool 11 | usage: 12 | make down Download static resources 13 | make gen Generate go file by static resources 14 | make build Compile and generate executable files 15 | make run Run web-shell 16 | make debug Debug web-shell 17 | make clean Clean tmp files 18 | ` 19 | 20 | const staticGenGoFile = "./server/static_gen.go" 21 | 22 | const staticDir = "html" 23 | 24 | var staticFiles = []string{ 25 | "https://cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.16.0/js/md5.min.js", 26 | "https://unpkg.com/xterm@4.9.0/lib/xterm.js", 27 | "https://unpkg.com/xterm@4.9.0/css/xterm.css", 28 | 29 | "https://unpkg.com/xterm-addon-fit@0.4.0/lib/xterm-addon-fit.js", 30 | "https://unpkg.com/xterm-addon-webgl@0.9.0/lib/xterm-addon-webgl.js", 31 | "https://unpkg.com/xterm-addon-web-links@0.4.0/lib/xterm-addon-web-links.js", 32 | } 33 | 34 | func fileExists(path string) bool { 35 | if stat, err := os.Stat(path); err == nil { 36 | return !stat.IsDir() 37 | } 38 | return false 39 | } 40 | 41 | func fileDir(path string) bool { 42 | if stat, err := os.Stat(path); err == nil { 43 | return stat.IsDir() 44 | } 45 | return false 46 | } 47 | 48 | func last(arr []string) string { 49 | return arr[len(arr)-1] 50 | } 51 | 52 | func invoke(sh ...string) { 53 | //CombinedOutput 54 | cmd := exec.Command(sh[0], sh[1:]...) 55 | println(fmt.Sprint(sh)) 56 | //cmd.Stdin = os.Stdin 57 | cmd.Stdout = os.Stdout 58 | cmd.Stderr = os.Stderr 59 | err := cmd.Run() 60 | if err != nil { 61 | println(err.Error()) 62 | } 63 | } 64 | 65 | func main() { 66 | (func() func() { 67 | if len(os.Args) < 2 { 68 | return MakeBuild 69 | } 70 | switch os.Args[1] { 71 | case "run": 72 | return MakeRun 73 | case "debug": 74 | return MakeDebug 75 | case "down": 76 | return MakeDown 77 | case "gen": 78 | return MakeGen 79 | case "build": 80 | return MakeBuild 81 | case "clean": 82 | return MakeClean 83 | default: 84 | return func() { 85 | println(MakeRemark) 86 | } 87 | } 88 | })()() 89 | } 90 | -------------------------------------------------------------------------------- /make/run.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import "os" 4 | 5 | // MakeRun down -> gen -> build 6 | func MakeRun() { 7 | MakeGen() 8 | MakeBuild() 9 | invoke(append([]string{"./web-shell"}, os.Args[2:]...)...) 10 | } 11 | -------------------------------------------------------------------------------- /makefile: -------------------------------------------------------------------------------- 1 | 2 | # run make/*.go 3 | 4 | build: webshellmake 5 | make/web-shell-make build 6 | 7 | down: webshellmake 8 | make/web-shell-make down 9 | 10 | gen: webshellmake 11 | make/web-shell-make gen 12 | 13 | debug: webshellmake 14 | make/web-shell-make debug 15 | 16 | run: webshellmake 17 | make/web-shell-make run 18 | 19 | clean: webshellmake 20 | make/web-shell-make clean 21 | 22 | help: webshellmake 23 | make/web-shell-make help 24 | 25 | 26 | webshellmake: 27 | cd make && go build 28 | -------------------------------------------------------------------------------- /manifests/statefulset.yaml: -------------------------------------------------------------------------------- 1 | --- 2 | kind: Service 3 | apiVersion: v1 4 | metadata: 5 | name: web-shell 6 | spec: 7 | selector: 8 | app: web-shell 9 | ports: 10 | - port: 80 11 | targetPort: 2020 12 | --- 13 | apiVersion: apps/v1 14 | kind: StatefulSet 15 | metadata: 16 | labels: 17 | app: web-shell 18 | name: web-shell 19 | spec: 20 | serviceName: web-shell 21 | replicas: 1 22 | revisionHistoryLimit: 10 23 | selector: 24 | matchLabels: 25 | app: web-shell 26 | template: 27 | metadata: 28 | labels: 29 | app: web-shell 30 | spec: 31 | containers: 32 | - env: 33 | - name: HOST 34 | value: 0.0.0.0 35 | - name: PORT 36 | value: "2020" 37 | - name: USER 38 | value: webshell 39 | - name: PASSWORD 40 | value: webshell123 41 | image: ghcr.io/eumel8/web-shell/web-shell:container 42 | imagePullPolicy: Always 43 | name: web-shell 44 | resources: 45 | limits: 46 | cpu: 1000m 47 | memory: 1024Mi 48 | requests: 49 | cpu: 100m 50 | memory: 128Mi 51 | securityContext: 52 | allowPrivilegeEscalation: false 53 | capabilities: 54 | drop: 55 | - ALL 56 | privileged: false 57 | readOnlyRootFilesystem: true 58 | runAsUser: 1000 59 | runAsGroup: 1000 60 | terminationMessagePath: /dev/termination-log 61 | terminationMessagePolicy: File 62 | volumeMounts: 63 | - name: workdir 64 | mountPath: /home/webshell 65 | - name: tmp 66 | mountPath: /tmp 67 | dnsPolicy: ClusterFirst 68 | hostNetwork: false 69 | restartPolicy: Always 70 | schedulerName: default-scheduler 71 | securityContext: 72 | fsGroup: 1000 73 | supplementalGroups: 74 | - 1000 75 | terminationGracePeriodSeconds: 3 76 | serviceAccountName: web-shell 77 | volumes: 78 | - name: workdir 79 | emptyDir: {} 80 | - name: tmp 81 | emptyDir: 82 | medium: Memory 83 | --- 84 | apiVersion: v1 85 | kind: ServiceAccount 86 | metadata: 87 | labels: 88 | app: web-shell 89 | name: web-shell 90 | --- 91 | kind: Role 92 | apiVersion: rbac.authorization.k8s.io/v1 93 | metadata: 94 | labels: 95 | app: web-shell 96 | name: web-shell 97 | --- 98 | apiVersion: rbac.authorization.k8s.io/v1 99 | kind: RoleBinding 100 | metadata: 101 | labels: 102 | app: web-shell 103 | name: web-shell 104 | roleRef: 105 | apiGroup: rbac.authorization.k8s.io 106 | kind: Role 107 | name: web-shell 108 | subjects: 109 | - kind: ServiceAccount 110 | name: web-shell 111 | -------------------------------------------------------------------------------- /server/handler.go: -------------------------------------------------------------------------------- 1 | package server 2 | 3 | import ( 4 | "fmt" 5 | "log" 6 | "math/rand" 7 | "net/http" 8 | "strings" 9 | "time" 10 | 11 | paseto "aidanwoods.dev/go-paseto" 12 | "github.com/gorilla/websocket" 13 | ) 14 | 15 | var sessionKey = paseto.NewV4SymmetricKey() 16 | 17 | // HTMLDirHandler FileServer 18 | func HTMLDirHandler() http.Handler { 19 | return http.FileServer(http.Dir("html")) 20 | } 21 | 22 | // GetMethodHandler Only allow GET requests 23 | func GetMethodHandler(next http.Handler) http.Handler { 24 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 25 | if r.Method != "GET" { 26 | w.WriteHeader(http.StatusMethodNotAllowed) 27 | return 28 | } 29 | next.ServeHTTP(w, r) 30 | }) 31 | } 32 | 33 | // VerifyHandler Login verification 34 | func VerifyHandler(username, password string, next http.Handler) http.Handler { 35 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 36 | if username == "" && password == "" { 37 | // authentication disabled, permit all traffic 38 | } else { 39 | token := strings.TrimPrefix(r.URL.Path, "/cmd/") 40 | if len(token) < 10 { 41 | w.WriteHeader(http.StatusNotFound) 42 | return 43 | } 44 | 45 | p := paseto.NewParser() 46 | if _, err := p.ParseV4Local(sessionKey, token, nil); err != nil { 47 | log.Printf("Invalid token: %v", err) 48 | w.WriteHeader(http.StatusForbidden) 49 | return 50 | } 51 | } 52 | 53 | next.ServeHTTP(w, r) 54 | }) 55 | } 56 | 57 | // LoginHandler Login interface 58 | func LoginHandler(username, password string) http.Handler { 59 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 60 | w.Header().Set("Content-Type", "text/json; charset=utf-8") 61 | 62 | if username == "" || password == "" { 63 | // Authentication disabled, return a success regardless 64 | w.Write([]byte("{\"code\":0,\"msg\":\"Logged-in automatically (no authentication required)\",\"path\":\"noauth--login-not-required\"}")) 65 | return 66 | } 67 | 68 | const halfSecond = int64(time.Second / 2) 69 | time.Sleep(time.Duration(rand.Int63n(halfSecond))) 70 | 71 | if token := r.URL.Query().Get("token"); token != "" { 72 | p := paseto.NewParser() 73 | if _, err := p.ParseV4Local(sessionKey, token, nil); err == nil { 74 | log.Println("resuming session from stored token") 75 | w.Write([]byte("{\"code\":0,\"msg\":\"login success!\",\"path\":\"" + token + "\"}")) 76 | return 77 | } 78 | } 79 | 80 | sentUser, sentPass := r.URL.Query().Get("username"), r.URL.Query().Get("password") 81 | 82 | if username != sentUser || password != sentPass { 83 | w.Write([]byte("{\"code\":1,\"msg\":\"Login incorrect!\"}")) 84 | return 85 | } 86 | 87 | // login success 88 | token := paseto.NewToken() 89 | 90 | token.SetIssuedAt(time.Now()) 91 | token.SetNotBefore(time.Now()) 92 | token.SetExpiration(time.Now().Add(96 * time.Hour)) 93 | tokenBytes := token.V4Encrypt(sessionKey, nil) 94 | 95 | w.Write([]byte("{\"code\":0,\"msg\":\"login success!\",\"path\":\"" + tokenBytes + "\"}")) 96 | }) 97 | } 98 | 99 | // ConnectionHandler Make websocket and childprocess communicate 100 | func ConnectionHandler(command string) http.Handler { 101 | var upgrader = websocket.Upgrader{ 102 | ReadBufferSize: 1024, 103 | WriteBufferSize: 1024, 104 | CheckOrigin: func(r *http.Request) bool { 105 | return true 106 | }, 107 | } 108 | 109 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 110 | conn, err := upgrader.Upgrade(w, r, nil) 111 | if err != nil { 112 | log.Println("upgrader.Upgrade error:", err.Error()) 113 | return 114 | } 115 | defer conn.Close() 116 | 117 | pl, err := NewPipeLine(conn, command) 118 | if err != nil { 119 | conn.WriteMessage(websocket.TextMessage, []byte(err.Error())) 120 | return 121 | } 122 | defer pl.pty.Close() 123 | 124 | logChan := make(chan string) 125 | go pl.ReadSktAndWritePty(logChan) 126 | go pl.ReadPtyAndWriteSkt(logChan) 127 | 128 | errlog := <-logChan 129 | log.Println(errlog) 130 | go func() { 131 | <-logChan 132 | close(logChan) 133 | }() 134 | }) 135 | } 136 | 137 | // ContentPathHandler content path prefix 138 | func ContentPathHandler(contentpath string, next http.Handler) http.Handler { 139 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 140 | p := strings.TrimPrefix(r.URL.Path, contentpath) 141 | r.URL.Path = p 142 | next.ServeHTTP(w, r) 143 | }) 144 | } 145 | 146 | // LoggingHandler Log print 147 | func LoggingHandler(next http.Handler) http.Handler { 148 | return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { 149 | start := time.Now() 150 | w.Header().Add("Server", Server) 151 | next.ServeHTTP(w, r) 152 | str := fmt.Sprintf( 153 | "%s Completed %s %s in %v from %s", 154 | start.Format("2006/01/02 15:04:05"), 155 | r.Method, 156 | r.URL.Path, 157 | time.Since(start), 158 | r.RemoteAddr) 159 | println(str) 160 | }) 161 | } 162 | -------------------------------------------------------------------------------- /server/pipeline.go: -------------------------------------------------------------------------------- 1 | package server 2 | 3 | import ( 4 | "encoding/json" 5 | "fmt" 6 | "io" 7 | 8 | "github.com/gorilla/websocket" 9 | "github.com/jiangklijna/web-shell/lib" 10 | "github.com/runletapp/go-console" 11 | ) 12 | 13 | // PipeLine Connect websocket and childprocess 14 | type PipeLine struct { 15 | pty console.Console 16 | skt *websocket.Conn 17 | } 18 | 19 | // NewPipeLine Malloc PipeLine 20 | func NewPipeLine(conn *websocket.Conn, command string) (*PipeLine, error) { 21 | proc, err := console.New(120, 60) 22 | if err != nil { 23 | return nil, err 24 | } 25 | err = proc.Start([]string{command}) 26 | if err != nil { 27 | return nil, err 28 | } 29 | return &PipeLine{proc, conn}, nil 30 | } 31 | 32 | // ReadSktAndWritePty read skt and write pty 33 | func (w *PipeLine) ReadSktAndWritePty(logChan chan string) { 34 | for { 35 | mt, payload, err := w.skt.ReadMessage() 36 | if err != nil && err != io.EOF { 37 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty websocket ReadMessage failed: %s", err) 38 | return 39 | } 40 | if mt != websocket.TextMessage { 41 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty Invalid message type %d", mt) 42 | return 43 | } 44 | var msg lib.Message 45 | err = json.Unmarshal(payload, &msg) 46 | if err != nil { 47 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty Invalid message %s", err) 48 | return 49 | } 50 | switch msg.Type { 51 | case lib.TypeResize: 52 | var size []int 53 | err := json.Unmarshal(msg.Data, &size) 54 | if err != nil { 55 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty Invalid resize message: %s", err) 56 | return 57 | } 58 | err = w.pty.SetSize(size[0], size[1]) 59 | if err != nil { 60 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty pty resize failed: %s", err) 61 | return 62 | } 63 | case lib.TypeData: 64 | var dat string 65 | err := json.Unmarshal(msg.Data, &dat) 66 | if err != nil { 67 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty Invalid data message %s", err) 68 | return 69 | } 70 | _, err = w.pty.Write([]byte(dat)) 71 | if err != nil { 72 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty pty write failed: %s", err) 73 | return 74 | } 75 | default: 76 | logChan <- fmt.Sprintf("Error ReadSktAndWritePty Invalid message type %d", mt) 77 | return 78 | } 79 | } 80 | } 81 | 82 | // ReadPtyAndWriteSkt read pty and write skt 83 | func (w *PipeLine) ReadPtyAndWriteSkt(logChan chan string) { 84 | buf := make([]byte, 4096) 85 | for { 86 | n, err := w.pty.Read(buf) 87 | if err != nil { 88 | logChan <- fmt.Sprintf("Error ReadPtyAndWriteSkt pty read failed: %s", err) 89 | return 90 | } 91 | err = w.skt.WriteMessage(websocket.TextMessage, buf[:n]) 92 | if err != nil { 93 | logChan <- fmt.Sprintf("Error ReadPtyAndWriteSkt skt write failed: %s", err) 94 | return 95 | } 96 | } 97 | } 98 | -------------------------------------------------------------------------------- /server/server.go: -------------------------------------------------------------------------------- 1 | package server 2 | 3 | import ( 4 | "crypto/tls" 5 | "log" 6 | "net/http" 7 | 8 | "github.com/jiangklijna/web-shell/lib" 9 | ) 10 | 11 | // Version WebShell Server current version 12 | const Version = "1.0" 13 | 14 | // Server Response header[Server] 15 | const Server = "web-shell-" + Version 16 | 17 | // WebShellServer Main Server 18 | type WebShellServer struct { 19 | http.ServeMux 20 | } 21 | 22 | // StaticHandler reserved for static_gen.go 23 | var StaticHandler http.Handler 24 | 25 | // Init WebShell. register handlers 26 | func (s *WebShellServer) Init(Username, Password, Command, ContentPath string) { 27 | if StaticHandler == nil { 28 | StaticHandler = HTMLDirHandler() 29 | } 30 | s.Handle(ContentPath+"/", s.upgrade(ContentPath, StaticHandler)) 31 | s.Handle(ContentPath+"/cmd/", s.upgrade(ContentPath, VerifyHandler(Username, Password, ConnectionHandler(Command)))) 32 | s.Handle(ContentPath+"/login", s.upgrade(ContentPath, LoginHandler(Username, Password))) 33 | } 34 | 35 | // packaging and upgrading http.Handler 36 | func (s *WebShellServer) upgrade(ContentPath string, h http.Handler) http.Handler { 37 | return LoggingHandler(GetMethodHandler(ContentPathHandler(ContentPath, h))) 38 | } 39 | 40 | // Run WebShell server 41 | func (s *WebShellServer) Run(https bool, port, crt, key, rootcrt string) { 42 | var err error 43 | server := &http.Server{Addr: ":" + port, Handler: s} 44 | if https { 45 | if rootcrt != "" { 46 | server.TLSConfig = &tls.Config{ 47 | ClientCAs: lib.ReadCertPool(rootcrt), 48 | ClientAuth: tls.RequireAndVerifyClientCert, 49 | } 50 | } 51 | err = server.ListenAndServeTLS(crt, key) 52 | } else { 53 | err = server.ListenAndServe() 54 | } 55 | if err != nil { 56 | log.Fatalln(err.Error()) 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /webshell.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/JiangKlijna/web-shell/529e933024c3fae6b5d4bffcbd9185bf7ab47c1d/webshell.png --------------------------------------------------------------------------------