[ { "path": ".github/CODE_OF_CONDUCT.md", "content": "# Contributor Covenant Code of Conduct\n\n## Our Pledge\n\nIn the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.\n\n## Our Standards\n\nExamples of behavior that contributes to creating a positive environment include:\n\n* Using welcoming and inclusive language\n* Being respectful of differing viewpoints and experiences\n* Gracefully accepting constructive criticism\n* Focusing on what is best for the community\n* Showing empathy towards other community members\n\nExamples of unacceptable behavior by participants include:\n\n* The use of sexualized language or imagery and unwelcome sexual attention or advances\n* Trolling, insulting/derogatory comments, and personal or political attacks\n* Public or private harassment\n* Publishing others' private information, such as a physical or electronic address, without explicit permission\n* Other conduct which could reasonably be considered inappropriate in a professional setting\n\n## Our Responsibilities\n\nProject maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.\n\nProject maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.\n\n## Scope\n\nThis Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.\n\n## Enforcement\n\nInstances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at claudiodangelis@gmail.com. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.\n\nProject maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.\n\n## Attribution\n\nThis Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]\n\n[homepage]: http://contributor-covenant.org\n[version]: http://contributor-covenant.org/version/1/4/\n" }, { "path": ".github/CONTRIBUTING.md", "content": "Contributions to this project are super welcome, so here's my recommendations:\n\n- Make sure that the no one is already working on what you are going to fix/implement\n\n We use the [someone is working on this](https://github.com/claudiodangelis/qrcp/issues?q=is%3Aissue+is%3Aopen+label%3A%22someone+is+working+on+this%22) label to mark issues that are being taken care of by someone, so please have a look before starting coding\n\n- If you want to take on an open issue, please announce it in the thread\n\n This does not mean you have to _ask_ first, but it makes sure that there won't be the case where more than one person are fixing the same bug or implementing the same feature without being aware of each other work, which usually results in a someone's time being wasted\n\n- Discuss implementation before writing the actual code\n\n If you think what you are going to work on will take some time and effort, I recommend to share your thoughts in the thread first\n\n- Review pending pull requests\n\n Help other users by reviewing their code\n\n- Explain the pull requests\n\n Help reviewers by explaining how the patch works, what bugs/problems it addresses and _how_ it should be tested\n\n- Address one problem per pull request\n\n When possible, avoid submitting a pull request that addresses more than problem\n\n- Run `go fmt` before submitting the pull request and address `golint` issues\n\n" }, { "path": ".github/FUNDING.yml", "content": "github: [claudiodangelis]\ncustom: [\"https://www.paypal.me/claudiodangelis\", \"https://www.buymeacoffee.com/claudiodangelis\"]\n" }, { "path": ".github/ISSUE_TEMPLATE.md", "content": "I'm opening this issue because:\n\n- [ ] I have found a bug\n- [ ] I want to request a feature\n- [ ] I have a question\n- [ ] Other\n\n\n- My Go version is: _(paste the output of `go version` and remember that qrcp requires at least version 1.8 of Go)_\n- My [GOPATH](https://github.com/golang/go/wiki/GOPATH) is set to: _(paste the output of `echo $GOPATH`)_\n\n" }, { "path": ".github/dependabot.yml", "content": "version: 2\nupdates:\n - package-ecosystem: gomod\n directory: /\n schedule:\n interval: daily\n" }, { "path": ".github/workflows/main.yml", "content": "name: CI\non:\n push:\n tags: [ 'v*' ]\n branches: [ main ]\n pull_request:\npermissions:\n contents: write\nenv:\n GOLANG_VERSION: 1.21.x\njobs:\n lint:\n name: lint\n runs-on: ubuntu-24.04\n steps:\n - uses: actions/checkout@v4\n - uses: actions/setup-go@v5\n with:\n go-version: ${{ env.GOLANG_VERSION }}\n - name: golangci-lint\n uses: golangci/golangci-lint-action@v7\n with:\n version: v2.0\n test:\n runs-on: ubuntu-24.04\n steps:\n - uses: actions/checkout@v4\n - name: Setup Go\n uses: actions/setup-go@v5\n with:\n go-version: ${{ env.GOLANG_VERSION }}\n - name: Install dependencies\n run: go get .\n - name: Build\n run: go build -v ./...\n - name: Test with the Go CLI\n run: go test ./...\n e2e:\n needs: [ test, lint ]\n runs-on: ${{ matrix.os }}\n strategy:\n matrix:\n os: [ ubuntu-24.04, macos-15, windows-latest ]\n steps:\n - uses: actions/checkout@v4\n - uses: actions/setup-go@v5\n with:\n go-version: ${{ env.GOLANG_VERSION }}\n - name: Run tests on *nix\n if: runner.os != 'Windows'\n run: |\n TEST_CONTENT=\"hello\"\n TEST_FILE=\"/tmp/qrcp-test.txt\"\n echo $TEST_CONTENT > $TEST_FILE\n go build\n OS=$(uname)\n INTERFACE=lo\n if [[ \"$OS\" == \"Darwin\" ]]; then\n INTERFACE=\"lo0\"\n fi\n ./qrcp -i $INTERFACE -p 1606 --path test $TEST_FILE > /dev/null 2>&1 &\n QRCP_PID=$!\n sleep 2\n CURL_OUTPUT=$(curl -s http://127.0.0.1:1606/send/test)\n kill $QRCP_PID || true\n if [[ \"${TEST_CONTENT}\" != \"${CURL_OUTPUT}\" ]]; then\n exit 1\n fi\n - name: Run tests on Windows\n if: runner.os == 'Windows'\n run: |\n $TestContent = \"hello\"\n $TestFile = \"$env:TEMP\\qrcp-test.txt\"\n $TestContent | Out-File -FilePath $TestFile -Encoding UTF8\n go build\n $Job = Start-Job -ScriptBlock {\n Start-Process -FilePath ./qrcp -ArgumentList \"-i\", \"any\", \"-p\", \"1606\", \"--path\", \"test\", \"$env:TEMP\\qrcp-test.txt\" -NoNewWindow -Wait\n }\n Start-Sleep -Seconds 2\n $Request = Invoke-WebRequest -Uri http://127.0.0.1:1606/send/test\n $FileContent = Get-Content -Path $TestFile -Raw\n if ($Request.Content -ne $FileContent) {\n Write-Host \"Expected: $FileContent\"\n Write-Host \"Got: $($Request.Content)\"\n exit 1\n }\n release:\n runs-on: ubuntu-24.04\n needs: [ e2e ]\n if: startsWith(github.event.ref, 'refs/tags/')\n steps:\n - uses: actions/checkout@v4\n\n - name: Unshallow\n run: git fetch --prune --unshallow\n\n - name: Set up Go\n uses: actions/setup-go@v5\n with:\n go-version: ${{ env.GOLANG_VERSION }}\n\n - name: Run GoReleaser\n uses: goreleaser/goreleaser-action@v6\n with:\n args: release --clean\n version: '~> v2'\n env:\n GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}\n" }, { "path": ".gitignore", "content": "qr-filetransfer\nqrcp\ndist\n" }, { "path": ".goreleaser.yml", "content": "# yaml-language-server: $schema=https://goreleaser.com/static/schema.json\nbefore:\n hooks:\n - go mod download\nbuilds:\n- env:\n - CGO_ENABLED=0\n ldflags:\n - -s -w -X github.com/claudiodangelis/qrcp/version.version={{.Version}} -X github.com/claudiodangelis/qrcp/version.date={{.Date}}\n goos:\n - linux\n - darwin\n - windows\n goarch:\n - 386\n - amd64\n - arm\n - arm64\n goarm:\n - 7\n ignore:\n - goos: darwin\n goarch: 386\narchives:\n - format_overrides:\n - goos: windows\n formats: [ tar.gz, zip ]\nchecksum:\n name_template: 'checksums.txt'\nchangelog:\n sort: asc\n filters:\n exclude:\n - '^docs:'\n - '^test:'\n - '^chore:'\nrelease:\n footer: |\n ## Downloads\n | Platform | Download link |\n |----------|------------------------------------------------------------------------------------------------------------------------------|\n | Linux | [deb package](https://github.com/claudiodangelis/qrcp/releases/download/{{ .Tag }}/qrcp_{{ .Version }}_linux_amd64.deb) |\n | Linux | [RPM package](https://github.com/claudiodangelis/qrcp/releases/download/{{ .Tag }}/qrcp_{{ .Version }}_linux_amd64.rpm) |\n | macOS | [macOS package](https://github.com/claudiodangelis/qrcp/releases/download/{{ .Tag }}/qrcp_{{ .Version }}_darwin_amd64.tar.gz) |\n | Windows | [Windows package](https://github.com/claudiodangelis/qrcp/releases/download/{{ .Tag }}/qrcp_{{ .Version }}_windows_amd64.tar.gz) |\n\n Refer to the list of assets below for all supported platform.\nnfpms:\n - homepage: https://qrcp.sh\n maintainer: Claudio d'Angelis \n description: Transfer files over wifi from your computer to your mobile device by scanning a QR code without leaving the terminal.\n license: MIT\n formats:\n - deb\n - rpm\n" }, { "path": "DEVELOPMENT.md", "content": "# Development\n\n## Versioning\n\n`qrcp` uses [semver](https://semver.org) for releases.\n\nVersion number is defined in `cmd/version.go`.\n\n## Releases\n\nWe are using [goreleases](https://goreleaser.com/), [nfpm](https://nfpm.goreleaser.com/) and [Github Actions](https://github.com/features/actions) to build, package and release `qrcp`.\n\nThe relevant files are:\n\n- .goreleases.yml\n- .github/workflows/main.yml\n\nThe release action is triggered when a tag is pushed to the master branch.\n\n## Development workflow\n\n1. Open a PR\n2. Let someone review it\n3. Squash commits and merge to master\n4. When ready to release, add a tag\n5. Wait for Github Action to process the release\n" }, { "path": "LICENSE", "content": "MIT License\n\nCopyright (c) 2018 Claudio d'Angelis\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n" }, { "path": "README.md", "content": "![Logo](docs/img/logo.svg)\n\n# $ qrcp\n\nTransfer files over Wi-Fi from your computer to a mobile device by scanning a QR code without leaving the terminal.\n\n[![Go Report Card](https://goreportcard.com/badge/github.com/claudiodangelis/qrcp)](https://goreportcard.com/report/github.com/claudiodangelis/qrcp)\n\nJoin the **Telegram channel** [qrcp_dev](https://t.me/qrcp_dev) or the [@qrcp_dev](https://twitter.com/qrcp_dev) **Twitter account** for news about the development.\n\n---\n\n## How does it work?\n\n![Screenshot](docs/img/screenshot.png)\n\n`qrcp` binds a web server to the address of your Wi-Fi network interface on a random port and creates a handler for it. The default handler serves the content and exits the program when the transfer is complete. When used to receive files, `qrcp` serves an upload page and handles the transfer.\n\nThe tool prints a QR code that encodes the text:\n\n```\nhttp://{address}:{port}/{random_path}\n```\n\nMost QR apps can detect URLs in decoded text and act accordingly (i.e., open the decoded URL with the default browser), so when the QR code is scanned, the content will begin downloading by the mobile browser.\n\n### Demo\n\n**Send files to mobile:**\n\n![screenshot](docs/img/demo.gif)\n\n**Receive files from mobile:**\n\n![Screenshot](docs/img/mobile-demo.gif)\n\n---\n\n## Installation\n\n### Using Go (Latest Development Version)\nRequires Go 1.18 or later:\n```sh\ngo install github.com/claudiodangelis/qrcp@latest\n```\n\n### Prebuilt Binaries\nDownload the latest release for your platform from the [Releases](https://github.com/claudiodangelis/qrcp/releases) page.\n\n| Platform | Instructions |\n|-------------|------------------------------------------------------------------------------------------|\n| **Linux** | Extract the `.tar.gz` archive, move the binary to `/usr/local/bin`, and set permissions. |\n| **Windows** | Extract the `.tar.gz` archive and place the `.exe` file in a directory in your `PATH`. |\n| **macOS** | Extract the `.tar.gz` archive, move the binary to `/usr/local/bin`, and set permissions. |\n\n### Package Managers\n\n| Platform | Package Manager | Command |\n|-------------|-----------------|------------------------------------------------|\n| **Linux** | ArchLinux (AUR) | `yay -S qrcp-bin` or `yay -S qrcp` |\n| **Linux** | Debian/Ubuntu | `sudo dpkg -i qrcp__linux_x86_64.deb` |\n| **Linux** | CentOS/Fedora | `sudo rpm -i qrcp__linux_x86_64.rpm` |\n| **Windows** | WinGet | `winget install --id=claudiodangelis.qrcp -e` |\n| **Windows** | Scoop | `scoop install qrcp` |\n| **Windows** | Chocolatey | `choco install qrcp` |\n| **macOS** | Homebrew | `brew install qrcp` |\n\n### Confirm Installation\nAfter installation, verify that `qrcp` is working:\n```sh\nqrcp --help\n```\n\n---\n\n## Usage\n\n### Send Files\n\n| Action | Command Example |\n|-----------------------------|-----------------------------------|\n| **Send a file** | `qrcp MyDocument.pdf` |\n| **Send multiple files** | `qrcp MyDocument.pdf IMG0001.jpg` |\n| **Send a folder** | `qrcp Documents/` |\n| **Zip before transferring** | `qrcp --zip LongVideo.avi` |\n\n### Receive Files\n\n| Action | Command Example |\n|-------------------------------------|----------------------------------|\n| **Receive to current directory** | `qrcp receive` |\n| **Receive to a specific directory** | `qrcp receive --output=/tmp/dir` |\n\n---\n\n## Configuration\n\n`qrcp` works without prior configuration, but you can customize it using a configuration file or environment variables.\n\n### Configuration File\nThe default configuration file is stored in `$XDG_CONFIG_HOME/qrcp/config.yml`. You can specify a custom location using the `--config` flag:\n```sh\nqrcp --config /tmp/qrcp.yml MyDocument.pdf\n```\n\n### Configuration Options\n\n| Key | Type | Description |\n|-------------|---------|--------------------------------------------------------------------------------|\n| `interface` | String | Network interface to bind the web server to. Use `any` to bind to `0.0.0.0`. |\n| `bind` | String | Address to bind the web server to. Overrides `interface`. |\n| `port` | Integer | Port to use. Defaults to a random port. |\n| `path` | String | Path to use in the URL. Defaults to a random string. |\n| `output` | String | Default directory to receive files. Defaults to the current working directory. |\n| `fqdn` | String | Fully qualified domain name to use in the URL instead of the IP address. |\n| `keep-alive` | Bool | Keep the server alive after transferring files. Defaults to `false`. |\n| `secure` | Bool | Use HTTPS instead of HTTP. Defaults to `false`. |\n| `tls-cert` | String | Path to the TLS certificate. Used only when `secure: true`. |\n| `tls-key` | String | Path to the TLS key. Used only when `secure: true`. |\n\n### Environment Variables\nAll configuration parameters can also be set via environment variables prefixed with `QRCP_`:\n- `$QRCP_INTERFACE`\n- `$QRCP_PORT`\n- `$QRCP_KEEPALIVE`\n\n---\n\n## Advanced Usage\n\n### Network Interface\nTo use a specific network interface:\n```sh\nqrcp -i tun0 MyDocument.pdf\n```\n\nTo bind the web server to all interfaces:\n```sh\nqrcp -i any MyDocument.pdf\n```\n\n### HTTPS\nEnable secure transfers with HTTPS by providing a TLS certificate and key:\n```sh\nqrcp --tls-cert /path/to/cert.pem --tls-key /path/to/cert.key MyDocument.pdf\n```\n\n---\n\n## Shell Completion\n\n`qrcp` provides shell completion scripts for Bash, Zsh, and Fish.\n\n| Shell | Command Example |\n|----------|---------------------------------------------|\n| **Bash** | `source <(qrcp completion bash)` |\n| **Zsh** | `qrcp completion zsh > \"${fpath[1]}/_qrcp\"` |\n| **Fish** | `qrcp completion fish | source` |\n\n---\n\n## Authors and Credits\n\n- **Author**: [Claudio d'Angelis](https://t.me/claudiodangelis)\n- **Logo**: Provided by [@arasatasaygin](https://github.com/arasatasaygin) as part of the [openlogos](https://github.com/arasatasaygin/openlogos) initiative.\n- **Releases**: Managed with [goreleaser](https://goreleaser.com).\n\n---\n\n## Clones and Similar Projects\n\n| Project Name | Description |\n|----------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|\n| [qr-fileshare](https://github.com/shivensinha4/qr-fileshare) | A similar idea executed in NodeJS with a React interface. |\n| [instant-file-transfer](https://github.com/maximumdata/instant-file-transfer) _(Uncredited)_ | Node.js project similar to this. |\n| [qr-filetransfer](https://github.com/sdushantha/qr-filetransfer) | Python clone of this project. |\n| [qr-filetransfer](https://github.com/svenkatreddy/qr-filetransfer) | Another Node.js clone of this project. |\n| [qr-transfer-node](https://github.com/codezoned/qr-transfer-node) | Another Node.js clone of this project. |\n| [QRDELIVER](https://github.com/realdennis/qrdeliver) | Node.js project similar to this. |\n| [qrfile](https://github.com/sgbj/qrfile) | Transfer files by scanning a QR code. |\n| [quick-transfer](https://github.com/CodeMan99/quick-transfer) | Node.js clone of this project. |\n| [share-file-qr](https://github.com/pwalch/share-file-qr) | Python re-implementation of this project. |\n| [share-files](https://github.com/antoaravinth/share-files) _(Uncredited)_ | Yet another Node.js clone of this project. |\n| [ezshare](https://github.com/mifi/ezshare) | Another Node.js two-way file sharing tool supporting folders and multiple files. |\n| [local_file_share](https://github.com/woshimanong1990/local_file_share) | _\"Share local file to other people, OR smartphone download files which is in PC.\"_ |\n| [qrcp](https://github.com/pearl2201/qrcp) | A desktop app clone of `qrcp`, written with C# and .NET Core, works for Windows. |\n| [swift_file](https://github.com/mateoradman/swift_file) | Rust project inspired by `qrcp`. |\n| [qrcp-android](https://github.com/ianfixes/qrcp-android) | Android app inspired by `qrcp`. |\n\n---\n\n## License\n\nMIT. See [LICENSE](LICENSE).\n" }, { "path": "SECURITY.md", "content": "# Security Policy\n\n## Supported Versions\n\n| Version | Supported |\n| ------- | ------------------ |\n| > 0.8.0 | :white_check_mark: |\n| < 0.8.0 | :x: |\n \n\n## Reporting a Vulnerability\n\nIf you have found a security issue, please immediately contact the main maintainer of the project at claudiodangelis@gmail.com.\n" }, { "path": "application/application.go", "content": "package application\n\ntype Flags struct {\n\tQuiet bool\n\tKeepAlive bool\n\tListAllInterfaces bool\n\tPort int\n\tPath string\n\tInterface string\n\tBind string\n\tFQDN string\n\tZip bool\n\tConfig string\n\tBrowser bool\n\tSecure bool\n\tTlsCert string\n\tTlsKey string\n\tOutput string\n\tReversed bool\n}\n\ntype App struct {\n\tFlags Flags\n\tName string\n}\n\nfunc New() App {\n\treturn App{\n\t\tName: \"qrcp\",\n\t\tFlags: Flags{},\n\t}\n}\n" }, { "path": "body/payload.go", "content": "package body\n\nimport (\n\t\"os\"\n\t\"path/filepath\"\n\n\t\"github.com/claudiodangelis/qrcp/util\"\n)\n\n// Body to transfer\ntype Body struct {\n\tFilename string\n\tPath string\n\tDeleteAfterTransfer bool\n}\n\n// Delete the payload from disk\nfunc (p Body) Delete() error {\n\treturn os.RemoveAll(p.Path)\n}\n\n// FromArgs returns a payload from args\nfunc FromArgs(args []string, zipFlag bool) (Body, error) {\n\tshouldzip := len(args) > 1 || zipFlag\n\tvar files []string\n\t// Check if content exists\n\tfor _, arg := range args {\n\t\tfile, err := os.Stat(arg)\n\t\tif err != nil {\n\t\t\treturn Body{}, err\n\t\t}\n\t\t// If at least one argument is dir, the content will be zipped\n\t\tif file.IsDir() {\n\t\t\tshouldzip = true\n\t\t}\n\t\tfiles = append(files, arg)\n\t}\n\t// Prepare the content\n\t// TODO: Research cleaner code\n\tvar content string\n\tif shouldzip {\n\t\tzip, err := util.ZipFiles(files)\n\t\tif err != nil {\n\t\t\treturn Body{}, err\n\t\t}\n\t\tcontent = zip\n\t} else {\n\t\tcontent = args[0]\n\t}\n\treturn Body{\n\t\tPath: content,\n\t\tFilename: filepath.Base(content),\n\t\tDeleteAfterTransfer: shouldzip,\n\t}, nil\n}\n" }, { "path": "cmd/completion.go", "content": "package cmd\n\nimport (\n\t\"os\"\n\n\t\"github.com/spf13/cobra\"\n)\n\n// completionCmd represents the completion command\nvar completionCmd = &cobra.Command{\n\tUse: \"completion [bash|zsh|fish|powershell]\",\n\tShort: \"Generate completion script\",\n\tLong: `To load completions:\n\nBash:\n\n$ source <(qrcp completion bash)\n\n# To load completions for each session, execute once:\nLinux:\n $ qrcp completion bash > /etc/bash_completion.d/qrcp\nMacOS:\n $ qrcp completion bash > /usr/local/etc/bash_completion.d/qrcp\n\nZsh:\n\n# If shell completion is not already enabled in your environment you will need\n# to enable it. You can execute the following once:\n\n$ echo \"autoload -U compinit; compinit\" >> ~/.zshrc\n\n# To load completions for each session, execute once:\n$ qrcp completion zsh > \"${fpath[1]}/_qrcp\"\n\n# You will need to start a new shell for this setup to take effect.\n\nFish:\n\n$ qrcp completion fish | source\n\n# To load completions for each session, execute once:\n$ qrcp completion fish > ~/.config/fish/completions/qrcp.fish\n`,\n\tDisableFlagsInUseLine: true,\n\tValidArgs: []string{\"bash\", \"zsh\", \"fish\", \"powershell\"},\n\tArgs: cobra.MatchAll(cobra.ExactArgs(1), cobra.OnlyValidArgs),\n\tRun: func(cmd *cobra.Command, args []string) {\n\t\tswitch args[0] {\n\t\tcase \"bash\":\n\t\t\tif err := cmd.Root().GenBashCompletion(os.Stdout); err != nil {\n\t\t\t\tpanic(err)\n\t\t\t}\n\t\tcase \"zsh\":\n\t\t\tif err := cmd.Root().GenZshCompletion(os.Stdout); err != nil {\n\t\t\t\tpanic(err)\n\t\t\t}\n\t\tcase \"fish\":\n\t\t\tif err := cmd.Root().GenFishCompletion(os.Stdout, true); err != nil {\n\t\t\t\tpanic(err)\n\t\t\t}\n\t\tcase \"powershell\":\n\t\t\tif err := cmd.Root().GenPowerShellCompletion(os.Stdout); err != nil {\n\t\t\t\tpanic(err)\n\t\t\t}\n\t\t}\n\t},\n}\n" }, { "path": "cmd/config.go", "content": "package cmd\n\nimport (\n\t\"fmt\"\n\n\t\"github.com/claudiodangelis/qrcp/config\"\n\t\"github.com/spf13/cobra\"\n)\n\nfunc configCmdFunc(command *cobra.Command, args []string) error {\n\treturn config.Wizard(app)\n}\n\nvar configCmd = &cobra.Command{\n\tUse: \"config\",\n\tShort: \"Configure qrcp\",\n\tLong: \"Run an interactive configuration wizard for qrcp. With this command you can configure which network interface and port should be used to create the file server.\",\n\tAliases: []string{\"c\", \"cfg\"},\n\tRunE: configCmdFunc,\n}\n\nvar migrateCmd = &cobra.Command{\n\tUse: \"migrate\",\n\tShort: \"Migrate the legacy configuration file\",\n\tLong: \"Migrate the legacy JSON configuration file to the new YAML format\",\n\tRun: func(cmd *cobra.Command, args []string) {\n\t\tok, err := config.Migrate(app)\n\t\tif err != nil {\n\t\t\tfmt.Println(\"error while migrating the legacy JSON configuration file:\", err)\n\t\t}\n\t\tif ok {\n\t\t\tfmt.Println(\"Legacy JSON configuration file has been successfully deleted\")\n\t\t}\n\t},\n}\n" }, { "path": "cmd/qrcp.go", "content": "package cmd\n\nimport (\n\t\"github.com/claudiodangelis/qrcp/application\"\n\t\"github.com/spf13/cobra\"\n)\n\nvar app application.App\n\nfunc init() {\n\tapp = application.New()\n\trootCmd.AddCommand(sendCmd)\n\trootCmd.AddCommand(receiveCmd)\n\trootCmd.AddCommand(configCmd)\n\trootCmd.AddCommand(versionCmd)\n\trootCmd.AddCommand(completionCmd)\n\tconfigCmd.AddCommand(migrateCmd)\n\t// Global command flags\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.Quiet, \"quiet\", \"q\", false, \"only print errors\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.KeepAlive, \"keep-alive\", \"k\", false, \"keep server alive after transferring\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.ListAllInterfaces, \"list-all-interfaces\", \"l\", false, \"list all available interfaces when choosing the one to use\")\n\trootCmd.PersistentFlags().IntVarP(&app.Flags.Port, \"port\", \"p\", 0, \"port to use for the server\")\n\trootCmd.PersistentFlags().StringVar(&app.Flags.Path, \"path\", \"\", \"path to use. Defaults to a random string\")\n\trootCmd.PersistentFlags().StringVarP(&app.Flags.Interface, \"interface\", \"i\", \"\", \"network interface to use for the server\")\n\trootCmd.PersistentFlags().StringVar(&app.Flags.Bind, \"bind\", \"\", \"address to bind the web server to\")\n\trootCmd.PersistentFlags().StringVarP(&app.Flags.FQDN, \"fqdn\", \"d\", \"\", \"fully-qualified domain name to use for the resulting URLs\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.Zip, \"zip\", \"z\", false, \"zip content before transferring\")\n\trootCmd.PersistentFlags().StringVarP(&app.Flags.Config, \"config\", \"c\", \"\", \"path to the config file, defaults to $XDG_CONFIG_HOME/qrcp/config.json\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.Browser, \"browser\", \"b\", false, \"display the QR code in a browser window\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.Secure, \"secure\", \"s\", false, \"use https connection\")\n\trootCmd.PersistentFlags().StringVar(&app.Flags.TlsCert, \"tls-cert\", \"\", \"path to TLS certificate to use with HTTPS\")\n\trootCmd.PersistentFlags().StringVar(&app.Flags.TlsKey, \"tls-key\", \"\", \"path to TLS private key to use with HTTPS\")\n\trootCmd.PersistentFlags().BoolVarP(&app.Flags.Reversed, \"reversed\", \"r\", false, \"Reverse QR code (black text on white background)\")\n\t// Receive command flags\n\treceiveCmd.PersistentFlags().StringVarP(&app.Flags.Output, \"output\", \"o\", \"\", \"output directory for receiving files\")\n}\n\n// The root command (`qrcp`) is like a shortcut of the `send` command\nvar rootCmd = &cobra.Command{\n\tUse: \"qrcp\",\n\tArgs: cobra.MinimumNArgs(1),\n\tRunE: sendCmdFunc,\n\tSilenceErrors: true,\n\tSilenceUsage: true,\n}\n\n// Execute the root command\nfunc Execute() error {\n\tif err := rootCmd.Execute(); err != nil {\n\t\trootCmd.PrintErrf(\"Error: %v\\nRun `qrcp help` for help.\\n\", err)\n\t\treturn err\n\t}\n\treturn nil\n}\n" }, { "path": "cmd/receive.go", "content": "package cmd\n\nimport (\n\t\"fmt\"\n\n\t\"github.com/claudiodangelis/qrcp/config\"\n\t\"github.com/claudiodangelis/qrcp/logger\"\n\t\"github.com/claudiodangelis/qrcp/qr\"\n\t\"github.com/claudiodangelis/qrcp/server\"\n\t\"github.com/eiannone/keyboard\"\n\t\"github.com/spf13/cobra\"\n)\n\nfunc receiveCmdFunc(command *cobra.Command, args []string) error {\n\tlog := logger.New(app.Flags.Quiet)\n\t// Load configuration\n\tcfg := config.New(app)\n\t// Create the server\n\tsrv, err := server.New(&cfg)\n\tif err != nil {\n\t\treturn err\n\t}\n\t// Sets the output directory\n\tif err := srv.ReceiveTo(cfg.Output); err != nil {\n\t\treturn err\n\t}\n\t// Prints the URL to scan to screen\n\tlog.Print(`Scan the following URL with a QR reader to start the file transfer, press CTRL+C or \"q\" to exit:`)\n\tlog.Print(srv.ReceiveURL)\n\t// Renders the QR\n\tqr.RenderString(srv.ReceiveURL, cfg.Reversed)\n\tif app.Flags.Browser {\n\t\tsrv.DisplayQR(srv.ReceiveURL)\n\t}\n\tif err := keyboard.Open(); err == nil {\n\t\tdefer func() {\n\t\t\tkeyboard.Close()\n\t\t}()\n\t\tgo func() {\n\t\t\tfor {\n\t\t\t\tchar, key, _ := keyboard.GetKey()\n\t\t\t\tif string(char) == \"q\" || key == keyboard.KeyCtrlC {\n\t\t\t\t\tsrv.Shutdown()\n\t\t\t\t}\n\t\t\t}\n\t\t}()\n\t} else {\n\t\tlog.Print(fmt.Sprintf(\"Warning: keyboard not detected: %v\", err))\n\t}\n\tif err := srv.Wait(); err != nil {\n\t\treturn err\n\t}\n\treturn nil\n}\n\nvar receiveCmd = &cobra.Command{\n\tUse: \"receive\",\n\tAliases: []string{\"r\"},\n\tShort: \"Receive one or more files\",\n\tLong: \"Receive one or more files. The destination directory can be set with the config wizard, or by passing the --output flag. If none of the above are set, the current working directory will be used as a destination directory.\",\n\tExample: `# Receive files in the current directory\nqrcp receive\n# Receive files in a specific directory\nqrcp receive --output /tmp\n`,\n\tRunE: receiveCmdFunc,\n}\n" }, { "path": "cmd/send.go", "content": "package cmd\n\nimport (\n\t\"fmt\"\n\n\t\"github.com/claudiodangelis/qrcp/body\"\n\t\"github.com/claudiodangelis/qrcp/config\"\n\t\"github.com/claudiodangelis/qrcp/logger\"\n\t\"github.com/claudiodangelis/qrcp/qr\"\n\t\"github.com/eiannone/keyboard\"\n\n\t\"github.com/claudiodangelis/qrcp/server\"\n\t\"github.com/spf13/cobra\"\n)\n\nfunc sendCmdFunc(command *cobra.Command, args []string) error {\n\tlog := logger.New(app.Flags.Quiet)\n\tbody, err := body.FromArgs(args, app.Flags.Zip)\n\tif err != nil {\n\t\treturn err\n\t}\n\tcfg := config.New(app)\n\tsrv, err := server.New(&cfg)\n\tif err != nil {\n\t\treturn err\n\t}\n\t// Sets the body\n\tsrv.Send(body)\n\tlog.Print(`Scan the following URL with a QR reader to start the file transfer, press CTRL+C or \"q\" to exit:`)\n\tlog.Print(srv.SendURL)\n\tqr.RenderString(srv.SendURL, cfg.Reversed)\n\tif app.Flags.Browser {\n\t\tsrv.DisplayQR(srv.SendURL)\n\t}\n\tif err := keyboard.Open(); err == nil {\n\t\tdefer func() {\n\t\t\tkeyboard.Close()\n\t\t}()\n\t\tgo func() {\n\t\t\tfor {\n\t\t\t\tchar, key, _ := keyboard.GetKey()\n\t\t\t\tif string(char) == \"q\" || key == keyboard.KeyCtrlC {\n\t\t\t\t\tsrv.Shutdown()\n\t\t\t\t}\n\t\t\t}\n\t\t}()\n\t} else {\n\t\tlog.Print(fmt.Sprintf(\"Warning: keyboard not detected: %v\", err))\n\t}\n\tif err := srv.Wait(); err != nil {\n\t\treturn err\n\t}\n\treturn nil\n}\n\nvar sendCmd = &cobra.Command{\n\tUse: \"send\",\n\tShort: \"Send a file(s) or directories from this host\",\n\tLong: \"Send a file(s) or directories from this host\",\n\tAliases: []string{\"s\"},\n\tExample: `# Send /path/file.gif. Webserver listens on a random port\nqrcp send /path/file.gif\n# Shorter version:\nqrcp /path/file.gif\n# Zip file1.gif and file2.gif, then send the zip package\nqrcp /path/file1.gif /path/file2.gif\n# Zip the content of directory, then send the zip package\nqrcp /path/directory\n# Send file.gif by creating a webserver on port 8080\nqrcp --port 8080 /path/file.gif\n`,\n\tArgs: cobra.MinimumNArgs(1),\n\tRunE: sendCmdFunc,\n}\n" }, { "path": "cmd/version.go", "content": "package cmd\n\nimport (\n\t\"fmt\"\n\n\t\"github.com/claudiodangelis/qrcp/version\"\n\t\"github.com/spf13/cobra\"\n)\n\nvar versionCmd = &cobra.Command{\n\tUse: \"version\",\n\tShort: \"Print version number and build information.\",\n\tRun: func(c *cobra.Command, args []string) {\n\t\tfmt.Println(version.String())\n\t},\n}\n" }, { "path": "config/config.go", "content": "package config\n\nimport (\n\t\"errors\"\n\t\"fmt\"\n\t\"os\"\n\t\"path/filepath\"\n\t\"strconv\"\n\t\"strings\"\n\n\t\"github.com/adrg/xdg\"\n\t\"github.com/asaskevich/govalidator\"\n\t\"github.com/claudiodangelis/qrcp/application\"\n\t\"github.com/claudiodangelis/qrcp/logger\"\n\t\"github.com/claudiodangelis/qrcp/util\"\n\t\"github.com/manifoldco/promptui\"\n\t\"github.com/spf13/viper\"\n)\n\ntype Config struct {\n\tInterface string `yaml:\",omitempty\"`\n\tPort int `yaml:\",omitempty\"`\n\tBind string `yaml:\",omitempty\"`\n\tKeepAlive bool `yaml:\",omitempty\"`\n\tPath string `yaml:\",omitempty\"`\n\tSecure bool `yaml:\",omitempty\"`\n\tTlsKey string `yaml:\",omitempty\"`\n\tTlsCert string `yaml:\",omitempty\"`\n\tFQDN string `yaml:\",omitempty\"`\n\tOutput string `yaml:\",omitempty\"`\n\tReversed bool `yaml:\",omitempty\"`\n}\n\nvar interactive bool = false\n\nfunc New(app application.App) Config {\n\tlog := logger.New(app.Flags.Quiet)\n\tv := getViperInstance(app)\n\tvar err error\n\tcfg := Config{}\n\n\t_, err = os.Stat(v.ConfigFileUsed())\n\tif os.IsNotExist(err) {\n\t\tif err := os.MkdirAll(filepath.Dir(v.ConfigFileUsed()), os.ModeDir|os.ModePerm); err != nil {\n\t\t\tpanic(err)\n\t\t}\n\t\tfile, err := os.Create(v.ConfigFileUsed())\n\t\tif err != nil {\n\t\t\tpanic(err)\n\t\t}\n\t\tdefer file.Close()\n\t}\n\tif err := v.ReadInConfig(); err != nil {\n\t\tpanic(fmt.Errorf(\"fatal error config file: %s\", err))\n\t}\n\t// Load file\n\tcfg.Interface = v.GetString(\"interface\")\n\tcfg.Bind = v.GetString(\"bind\")\n\tcfg.Port = v.GetInt(\"port\")\n\tcfg.KeepAlive = v.GetBool(\"keepAlive\")\n\tcfg.Path = v.GetString(\"path\")\n\tcfg.Secure = v.GetBool(\"secure\")\n\tcfg.TlsKey = v.GetString(\"tls-key\")\n\tcfg.TlsCert = v.GetString(\"tls-cert\")\n\tcfg.FQDN = v.GetString(\"fqdn\")\n\tcfg.Output = v.GetString(\"output\")\n\tcfg.Reversed = v.GetBool(\"reversed\")\n\n\t// Override\n\tif app.Flags.Interface != \"\" {\n\t\tcfg.Interface = app.Flags.Interface\n\t}\n\tif app.Flags.Bind != \"\" {\n\t\tcfg.Bind = app.Flags.Bind\n\t}\n\tif app.Flags.Port != 0 {\n\t\tcfg.Port = app.Flags.Port\n\t}\n\tif app.Flags.KeepAlive {\n\t\tcfg.KeepAlive = true\n\t}\n\tif app.Flags.Path != \"\" {\n\t\tcfg.Path = app.Flags.Path\n\t}\n\tif app.Flags.Secure {\n\t\tcfg.Secure = true\n\t}\n\tif app.Flags.TlsKey != \"\" {\n\t\tcfg.TlsKey = app.Flags.TlsKey\n\t}\n\tif app.Flags.TlsCert != \"\" {\n\t\tcfg.TlsCert = app.Flags.TlsCert\n\t}\n\tif app.Flags.FQDN != \"\" {\n\t\tcfg.FQDN = app.Flags.FQDN\n\t}\n\tif app.Flags.Output != \"\" {\n\t\tcfg.Output = app.Flags.Output\n\t}\n\tif app.Flags.Reversed {\n\t\tcfg.Reversed = true\n\t}\n\n\t// Discover interface if it's not been set yet\n\tif !interactive {\n\t\tif cfg.Interface == \"\" {\n\t\t\tcfg.Interface, err = chooseInterface(app.Flags)\n\t\t\tif err != nil {\n\t\t\t\tpanic(err)\n\t\t\t}\n\t\t\tv.Set(\"interface\", cfg.Interface)\n\t\t\tif err := v.WriteConfig(); err != nil {\n\t\t\t\tlog.Print(fmt.Sprintf(\"Warning: the configuration file could not be saved: %v\\n\", err))\n\t\t\t}\n\t\t}\n\t}\n\n\treturn cfg\n}\n\nfunc getViperInstance(app application.App) *viper.Viper {\n\tvar configType string\n\tvar configFile string\n\tv := viper.New()\n\tif app.Flags.Config != \"\" {\n\t\tconfigFile = app.Flags.Config\n\t\tconfigType = filepath.Ext(configFile)[1:]\n\t} else {\n\t\toldConfigFile := filepath.Join(xdg.ConfigHome, \"qrcp\", \"config.json\")\n\t\t// Check if old configuration file exists\n\t\tif _, err := os.Stat(oldConfigFile); os.IsNotExist(err) {\n\t\t\tconfigType = \"yml\"\n\t\t} else {\n\t\t\tconfigType = \"json\"\n\t\t}\n\t\tconfigFile = filepath.Join(xdg.ConfigHome, app.Name, fmt.Sprintf(\"config.%s\", configType))\n\t}\n\tv.SetConfigType(configType)\n\tv.SetConfigFile(configFile)\n\tv.AutomaticEnv()\n\tv.SetEnvPrefix(app.Name)\n\tv.SetEnvKeyReplacer(strings.NewReplacer(\".\", \"_\", \"-\", \"_\"))\n\treturn v\n}\n\nfunc Wizard(app application.App) error {\n\tinteractive = true\n\tcfg := New(app)\n\tv := getViperInstance(app)\n\t// Choose interface\n\tvar err error\n\tcfg.Interface, err = chooseInterface(app.Flags)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tv.Set(\"interface\", cfg.Interface)\n\tif err := v.WriteConfig(); err != nil {\n\t\treturn err\n\t}\n\t// Ask for bind address\n\tvalidateBind := func(input string) error {\n\t\tif input == \"\" {\n\t\t\treturn nil\n\t\t}\n\t\tif !govalidator.IsIPv4(input) {\n\t\t\treturn errors.New(\"invalid address\")\n\t\t}\n\t\treturn nil\n\t}\n\tpromptBind := promptui.Prompt{\n\t\tValidate: validateBind,\n\t\tLabel: \"Enter bind address (this will override the chosen interface address)\",\n\t\tDefault: cfg.Bind,\n\t}\n\tif promptBindResultString, err := promptBind.Run(); err == nil {\n\t\tif promptBindResultString != \"\" {\n\t\t\tv.Set(\"bind\", promptBindResultString)\n\t\t}\n\t}\n\t// Ask for port\n\tvalidatePort := func(input string) error {\n\t\t_, err := strconv.ParseUint(input, 10, 16)\n\t\tif err != nil {\n\t\t\treturn errors.New(\"invalid number\")\n\t\t}\n\t\treturn nil\n\t}\n\tpromptPort := promptui.Prompt{\n\t\tValidate: validatePort,\n\t\tLabel: \"Choose port, 0 means random port\",\n\t\tDefault: fmt.Sprintf(\"%d\", cfg.Port),\n\t}\n\tif promptPortResultString, err := promptPort.Run(); err == nil {\n\t\tif port, err := strconv.ParseUint(promptPortResultString, 10, 16); err == nil {\n\t\t\tif port > 0 {\n\t\t\t\tv.Set(\"port\", port)\n\t\t\t}\n\t\t}\n\t}\n\t// Ask for fully qualified domain name\n\tvalidateFqdn := func(input string) error {\n\t\tif input != \"\" && !govalidator.IsDNSName(input) {\n\t\t\treturn errors.New(\"invalid domain\")\n\t\t}\n\t\treturn nil\n\t}\n\tpromptFqdn := promptui.Prompt{\n\t\tValidate: validateFqdn,\n\t\tLabel: \"Choose fully-qualified domain name\",\n\t\tDefault: cfg.FQDN,\n\t}\n\tif promptFqdnString, err := promptFqdn.Run(); err == nil {\n\t\tif promptFqdnString != \"\" {\n\t\t\tv.Set(\"fqdn\", promptFqdnString)\n\t\t}\n\n\t}\n\tpromptPath := promptui.Prompt{\n\t\tLabel: \"Choose URL path, empty means random\",\n\t\tDefault: cfg.Path,\n\t}\n\tif promptPathResultString, err := promptPath.Run(); err == nil {\n\t\tif promptPathResultString != \"\" {\n\t\t\tv.Set(\"path\", promptPathResultString)\n\t\t}\n\t}\n\t// Ask for keep alive\n\tpromptKeepAlive := promptui.Select{\n\t\tItems: []string{\"No\", \"Yes\"},\n\t\tLabel: \"Should the server keep alive after transferring?\",\n\t}\n\tif _, promptKeepAliveResultString, err := promptKeepAlive.Run(); err == nil {\n\t\tif promptKeepAliveResultString == \"Yes\" {\n\t\t\tv.Set(\"keepAlive\", true)\n\t\t}\n\t}\n\t// HTTPS\n\t// Ask if path is readable and is a file\n\tpathIsReadableFile := func(input string) error {\n\t\tif input == \"\" {\n\t\t\treturn errors.New(\"invalid path\")\n\t\t}\n\t\tpath, err := filepath.Abs(util.Expand(input))\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tfmt.Println(path)\n\t\tfileinfo, err := os.Stat(path)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif fileinfo.Mode().IsDir() {\n\t\t\treturn fmt.Errorf(\"%s is a directory\", input)\n\t\t}\n\t\treturn nil\n\t}\n\tpromptSecure := promptui.Select{\n\t\tItems: []string{\"No\", \"Yes\"},\n\t\tLabel: \"Should files be securely transferred with HTTPS?\",\n\t}\n\tif _, promptSecureResultString, err := promptSecure.Run(); err == nil {\n\t\tif promptSecureResultString == \"Yes\" {\n\t\t\tv.Set(\"secure\", true)\n\t\t}\n\t\tcfg.Secure = v.GetBool(\"secure\")\n\t}\n\tif cfg.Secure {\n\t\t// TLS Cert\n\t\tpromptTlsCert := promptui.Prompt{\n\t\t\tLabel: \"Choose TLS certificate path. Empty if not using HTTPS.\",\n\t\t\tDefault: cfg.TlsCert,\n\t\t\tValidate: pathIsReadableFile,\n\t\t}\n\t\tif promptTlsCertString, err := promptTlsCert.Run(); err == nil {\n\t\t\tv.Set(\"tls-cert\", util.Expand(promptTlsCertString))\n\t\t}\n\t\t// TLS key\n\t\tpromptTlsKey := promptui.Prompt{\n\t\t\tLabel: \"Choose TLS certificate key. Empty if not using HTTPS.\",\n\t\t\tDefault: cfg.TlsKey,\n\t\t\tValidate: pathIsReadableFile,\n\t\t}\n\t\tif promptTlsKeyString, err := promptTlsKey.Run(); err == nil {\n\t\t\tv.Set(\"tls-key\", util.Expand(promptTlsKeyString))\n\t\t}\n\t}\n\tvalidateIsDir := func(input string) error {\n\t\tif input == \"\" {\n\t\t\treturn nil\n\t\t}\n\t\tpath, err := filepath.Abs(input)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tf, err := os.Stat(path)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif !f.IsDir() {\n\t\t\treturn errors.New(\"path is not a directory\")\n\t\t}\n\t\treturn nil\n\t}\n\t// Ask for default output directory\n\tpromptOutput := promptui.Prompt{\n\t\tLabel: \"Choose default output directory for received files, empty does not set a default\",\n\t\tDefault: cfg.Output,\n\t\tValidate: validateIsDir,\n\t}\n\tif promptOutputResultString, err := promptOutput.Run(); err == nil {\n\t\tif promptOutputResultString != \"\" {\n\t\t\toutput, _ := filepath.Abs(promptOutputResultString)\n\t\t\tv.Set(\"output\", output)\n\t\t}\n\t}\n\tpromptReversed := promptui.Select{\n\t\tItems: []string{\"No\", \"Yes\"},\n\t\tLabel: \"Reverse QR code (black text on white background)?\",\n\t}\n\tif _, promptReversedResultString, err := promptReversed.Run(); err == nil {\n\t\tif promptReversedResultString == \"Yes\" {\n\t\t\tv.Set(\"reversed\", true)\n\t\t}\n\t\tcfg.Reversed = v.GetBool(\"reversed\")\n\t}\n\n\treturn v.WriteConfig()\n}\n" }, { "path": "config/config_test.go", "content": "package config\n\nimport (\n\t\"os\"\n\t\"path/filepath\"\n\t\"reflect\"\n\t\"runtime\"\n\t\"testing\"\n\n\t\"github.com/claudiodangelis/qrcp/application\"\n)\n\nfunc TestNew(t *testing.T) {\n\tos.Clearenv()\n\t_, f, _, _ := runtime.Caller(0)\n\tfoundIface, err := chooseInterface(application.Flags{})\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\ttestdir := filepath.Join(filepath.Dir(f), \"testdata\")\n\ttempfile, err := os.CreateTemp(\"\", \"qrcp*tmp.yml\")\n\tif err != nil {\n\t\tt.Skip()\n\t}\n\tdefer os.Remove(tempfile.Name())\n\tpartialconfig, err := os.CreateTemp(\"\", \"qrcp*partial.yml\")\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tdefer os.Remove(partialconfig.Name())\n\tif err := os.WriteFile(partialconfig.Name(), []byte(`port: 9090`), os.ModePerm); err != nil {\n\t\tpanic(err)\n\t}\n\ttype args struct {\n\t\tapp application.App\n\t}\n\ttests := []struct {\n\t\tname string\n\t\targs args\n\t\twant Config\n\t}{\n\t\t{\n\t\t\t\"partial\", args{\n\t\t\t\tapp: application.App{\n\t\t\t\t\tFlags: application.Flags{\n\t\t\t\t\t\tConfig: partialconfig.Name(),\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\tConfig{\n\t\t\t\tInterface: foundIface,\n\t\t\t\tPort: 9090,\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\t\"init\", args{\n\t\t\t\tapp: application.App{\n\t\t\t\t\tFlags: application.Flags{\n\t\t\t\t\t\tConfig: tempfile.Name(),\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\tConfig{\n\t\t\t\tInterface: foundIface,\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\t\"#2\", args{\n\t\t\t\tapp: application.App{\n\t\t\t\t\tFlags: application.Flags{\n\t\t\t\t\t\tConfig: filepath.Join(testdir, \"qrcp.yml\"),\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\tConfig{\n\t\t\t\tInterface: foundIface,\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\t\"#2\", args{\n\t\t\t\tapp: application.App{\n\t\t\t\t\tFlags: application.Flags{\n\t\t\t\t\t\tConfig: filepath.Join(testdir, \"full.yml\"),\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\tConfig{\n\t\t\t\tInterface: foundIface,\n\t\t\t\tPort: 18080,\n\t\t\t\tKeepAlive: false,\n\t\t\t\tBind: \"10.20.30.40\",\n\t\t\t\tPath: \"random\",\n\t\t\t\tSecure: false,\n\t\t\t\tTlsKey: \"/path/to/key\",\n\t\t\t\tTlsCert: \"/path/to/cert\",\n\t\t\t\tFQDN: \"mylan.com\",\n\t\t\t\tOutput: \"/path/to/default/output/dir\",\n\t\t\t\tReversed: true,\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\t\"overrides\", args{\n\t\t\t\tapp: application.App{\n\t\t\t\t\tFlags: application.Flags{\n\t\t\t\t\t\tConfig: filepath.Join(testdir, \"full.yml\"),\n\t\t\t\t\t\tPort: 99999,\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t\tConfig{\n\t\t\t\tInterface: foundIface,\n\t\t\t\tPort: 99999,\n\t\t\t\tBind: \"10.20.30.40\",\n\t\t\t\tKeepAlive: false,\n\t\t\t\tPath: \"random\",\n\t\t\t\tSecure: false,\n\t\t\t\tTlsKey: \"/path/to/key\",\n\t\t\t\tTlsCert: \"/path/to/cert\",\n\t\t\t\tFQDN: \"mylan.com\",\n\t\t\t\tOutput: \"/path/to/default/output/dir\",\n\t\t\t\tReversed: true,\n\t\t\t},\n\t\t},\n\t}\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tgot := New(tt.args.app)\n\t\t\tgot.Interface = foundIface\n\t\t\tif !reflect.DeepEqual(got, tt.want) {\n\t\t\t\tt.Errorf(\"New() = %v, want %v\", got, tt.want)\n\t\t\t}\n\t\t})\n\t}\n}\n" }, { "path": "config/migrate.go", "content": "package config\n\nimport (\n\t\"encoding/json\"\n\t\"os\"\n\t\"path/filepath\"\n\n\t\"github.com/adrg/xdg\"\n\t\"github.com/claudiodangelis/qrcp/application\"\n\t\"gopkg.in/yaml.v2\"\n)\n\n// Migrate function will look for an existing legacy configuration file\n// and will migrate it to the new format\nfunc Migrate(app application.App) (bool, error) {\n\toldConfigFile := filepath.Join(xdg.ConfigHome, \"qrcp\", \"config.json\")\n\tnewConfigFile := filepath.Join(xdg.ConfigHome, \"qrcp\", \"config.yml\")\n\t// Check if old configuration file exists\n\tif _, err := os.Stat(oldConfigFile); os.IsNotExist(err) {\n\t\treturn false, nil\n\t}\n\toldConfigFileBytes, err := os.ReadFile(oldConfigFile)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tvar cfg Config\n\tif err := json.Unmarshal(oldConfigFileBytes, &cfg); err != nil {\n\t\tpanic(err)\n\t}\n\tnewConfigFileBytes, err := yaml.Marshal(cfg)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tif err := os.WriteFile(newConfigFile, newConfigFileBytes, 0644); err != nil {\n\t\tpanic(err)\n\t}\n\t// Delete old file\n\tif err := os.Remove(oldConfigFile); err != nil {\n\t\tpanic(err)\n\t}\n\treturn true, nil\n}\n" }, { "path": "config/testdata/full.yml", "content": "interface: __PLACEHOLDER_INTERFACE__\nport: 18080\nbind: '10.20.30.40'\nkeepAlive: false\npath: random\nsecure: false\ntls-key: /path/to/key\ntls-cert: /path/to/cert\nfqdn: mylan.com\noutput: /path/to/default/output/dir\nreversed: true\n" }, { "path": "config/testdata/qrcp.yml", "content": "interface: __PLACEHOLDER_INTERFACE__\n" }, { "path": "config/util.go", "content": "package config\n\nimport (\n\t\"errors\"\n\t\"fmt\"\n\n\t\"github.com/claudiodangelis/qrcp/application\"\n\t\"github.com/claudiodangelis/qrcp/util\"\n\t\"github.com/manifoldco/promptui\"\n)\n\nfunc chooseInterface(flags application.Flags) (string, error) {\n\tinterfaces, err := util.Interfaces(flags.ListAllInterfaces)\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\tif len(interfaces) == 0 {\n\t\treturn \"\", errors.New(\"no interfaces found\")\n\t}\n\tif len(interfaces) == 1 && !interactive {\n\t\tfor name := range interfaces {\n\t\t\tfmt.Printf(\"only one interface found: %s, using this one\\n\", name)\n\t\t\treturn name, nil\n\t\t}\n\t}\n\t// Map for pretty printing\n\tm := make(map[string]string)\n\titems := []string{}\n\tfor name, ip := range interfaces {\n\t\tlabel := fmt.Sprintf(\"%s (%s)\", name, ip)\n\t\tm[label] = name\n\t\titems = append(items, label)\n\t}\n\t// Add the \"any\" interface\n\tanyIP := \"0.0.0.0\"\n\tanyName := \"any\"\n\tanyLabel := fmt.Sprintf(\"%s (%s)\", anyName, anyIP)\n\tm[anyLabel] = anyName\n\titems = append(items, anyLabel)\n\tprompt := promptui.Select{\n\t\tItems: items,\n\t\tLabel: \"Choose interface\",\n\t}\n\t_, result, err := prompt.Run()\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\treturn m[result], nil\n}\n" }, { "path": "docs/CNAME", "content": "qrcp.sh" }, { "path": "docs/LICENSE", "content": "MIT License\n\nCopyright (c) 2018 Claudio d'Angelis\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n" }, { "path": "docs/_config.yml", "content": "theme: jekyll-theme-cayman" }, { "path": "docs/index.md", "content": "![Logo](img/logo.svg)\n\n# $ qrcp\n\nTransfer files over Wi-Fi from your computer to a mobile device by scanning a QR code without leaving the terminal.\n\n[![Go Report Card](https://goreportcard.com/badge/github.com/claudiodangelis/qrcp)](https://goreportcard.com/report/github.com/claudiodangelis/qrcp)\n\nJoin the **Telegram channel** [qrcp_dev](https://t.me/qrcp_dev) or the [@qrcp_dev](https://twitter.com/qrcp_dev) **Twitter account** for news about the development.\n\n---\n\n## How does it work?\n\n![Screenshot](img/screenshot.png)\n\n`qrcp` binds a web server to the address of your Wi-Fi network interface on a random port and creates a handler for it. The default handler serves the content and exits the program when the transfer is complete. When used to receive files, `qrcp` serves an upload page and handles the transfer.\n\nThe tool prints a QR code that encodes the text:\n\n```\nhttp://{address}:{port}/{random_path}\n```\n\nMost QR apps can detect URLs in decoded text and act accordingly (i.e., open the decoded URL with the default browser), so when the QR code is scanned, the content will begin downloading by the mobile browser.\n\n### Demo\n\n**Send files to mobile:**\n\n![screenshot](img/demo.gif)\n\n**Receive files from mobile:**\n\n![Screenshot](img/mobile-demo.gif)\n\n---\n\n## Installation\n\n### Using Go (Latest Development Version)\nRequires Go 1.18 or later:\n```sh\ngo install github.com/claudiodangelis/qrcp@latest\n```\n\n### Prebuilt Binaries\nDownload the latest release for your platform from the [Releases](https://github.com/claudiodangelis/qrcp/releases) page.\n\n| Platform | Instructions |\n|-------------|------------------------------------------------------------------------------------------|\n| **Linux** | Extract the `.tar.gz` archive, move the binary to `/usr/local/bin`, and set permissions. |\n| **Windows** | Extract the `.tar.gz` archive and place the `.exe` file in a directory in your `PATH`. |\n| **macOS** | Extract the `.tar.gz` archive, move the binary to `/usr/local/bin`, and set permissions. |\n\n### Package Managers\n\n| Platform | Package Manager | Command |\n|-------------|-----------------|------------------------------------------------|\n| **Linux** | ArchLinux (AUR) | `yay -S qrcp-bin` or `yay -S qrcp` |\n| **Linux** | Debian/Ubuntu | `sudo dpkg -i qrcp__linux_x86_64.deb` |\n| **Linux** | CentOS/Fedora | `sudo rpm -i qrcp__linux_x86_64.rpm` |\n| **Windows** | WinGet | `winget install --id=claudiodangelis.qrcp -e` |\n| **Windows** | Scoop | `scoop install qrcp` |\n| **Windows** | Chocolatey | `choco install qrcp` |\n| **macOS** | Homebrew | `brew install qrcp` |\n\n### Confirm Installation\nAfter installation, verify that `qrcp` is working:\n```sh\nqrcp --help\n```\n\n---\n\n## Usage\n\n### Send Files\n\n| Action | Command Example |\n|-----------------------------|-----------------------------------|\n| **Send a file** | `qrcp MyDocument.pdf` |\n| **Send multiple files** | `qrcp MyDocument.pdf IMG0001.jpg` |\n| **Send a folder** | `qrcp Documents/` |\n| **Zip before transferring** | `qrcp --zip LongVideo.avi` |\n\n### Receive Files\n\n| Action | Command Example |\n|-------------------------------------|----------------------------------|\n| **Receive to current directory** | `qrcp receive` |\n| **Receive to a specific directory** | `qrcp receive --output=/tmp/dir` |\n\n---\n\n## Configuration\n\n`qrcp` works without prior configuration, but you can customize it using a configuration file or environment variables.\n\n### Configuration File\nThe default configuration file is stored in `$XDG_CONFIG_HOME/qrcp/config.yml`. You can specify a custom location using the `--config` flag:\n```sh\nqrcp --config /tmp/qrcp.yml MyDocument.pdf\n```\n\n### Configuration Options\n\n| Key | Type | Description |\n|-------------|---------|--------------------------------------------------------------------------------|\n| `interface` | String | Network interface to bind the web server to. Use `any` to bind to `0.0.0.0`. |\n| `bind` | String | Address to bind the web server to. Overrides `interface`. |\n| `port` | Integer | Port to use. Defaults to a random port. |\n| `path` | String | Path to use in the URL. Defaults to a random string. |\n| `output` | String | Default directory to receive files. Defaults to the current working directory. |\n| `fqdn` | String | Fully qualified domain name to use in the URL instead of the IP address. |\n| `keep-alive` | Bool | Keep the server alive after transferring files. Defaults to `false`. |\n| `secure` | Bool | Use HTTPS instead of HTTP. Defaults to `false`. |\n| `tls-cert` | String | Path to the TLS certificate. Used only when `secure: true`. |\n| `tls-key` | String | Path to the TLS key. Used only when `secure: true`. |\n\n### Environment Variables\nAll configuration parameters can also be set via environment variables prefixed with `QRCP_`:\n- `$QRCP_INTERFACE`\n- `$QRCP_PORT`\n- `$QRCP_KEEPALIVE`\n\n---\n\n## Advanced Usage\n\n### Network Interface\nTo use a specific network interface:\n```sh\nqrcp -i tun0 MyDocument.pdf\n```\n\nTo bind the web server to all interfaces:\n```sh\nqrcp -i any MyDocument.pdf\n```\n\n### HTTPS\nEnable secure transfers with HTTPS by providing a TLS certificate and key:\n```sh\nqrcp --tls-cert /path/to/cert.pem --tls-key /path/to/cert.key MyDocument.pdf\n```\n\n---\n\n## Shell Completion\n\n`qrcp` provides shell completion scripts for Bash, Zsh, and Fish.\n\n| Shell | Command Example |\n|----------|---------------------------------------------|\n| **Bash** | `source <(qrcp completion bash)` |\n| **Zsh** | `qrcp completion zsh > \"${fpath[1]}/_qrcp\"` |\n| **Fish** | `qrcp completion fish | source` |\n\n---\n\n## Authors and Credits\n\n- **Author**: [Claudio d'Angelis](https://t.me/claudiodangelis)\n- **Logo**: Provided by [@arasatasaygin](https://github.com/arasatasaygin) as part of the [openlogos](https://github.com/arasatasaygin/openlogos) initiative.\n- **Releases**: Managed with [goreleaser](https://goreleaser.com).\n\n---\n\n## Clones and Similar Projects\n\n| Project Name | Description |\n|----------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|\n| [qr-fileshare](https://github.com/shivensinha4/qr-fileshare) | A similar idea executed in NodeJS with a React interface. |\n| [instant-file-transfer](https://github.com/maximumdata/instant-file-transfer) _(Uncredited)_ | Node.js project similar to this. |\n| [qr-filetransfer](https://github.com/sdushantha/qr-filetransfer) | Python clone of this project. |\n| [qr-filetransfer](https://github.com/svenkatreddy/qr-filetransfer) | Another Node.js clone of this project. |\n| [qr-transfer-node](https://github.com/codezoned/qr-transfer-node) | Another Node.js clone of this project. |\n| [QRDELIVER](https://github.com/realdennis/qrdeliver) | Node.js project similar to this. |\n| [qrfile](https://github.com/sgbj/qrfile) | Transfer files by scanning a QR code. |\n| [quick-transfer](https://github.com/CodeMan99/quick-transfer) | Node.js clone of this project. |\n| [share-file-qr](https://github.com/pwalch/share-file-qr) | Python re-implementation of this project. |\n| [share-files](https://github.com/antoaravinth/share-files) _(Uncredited)_ | Yet another Node.js clone of this project. |\n| [ezshare](https://github.com/mifi/ezshare) | Another Node.js two-way file sharing tool supporting folders and multiple files. |\n| [local_file_share](https://github.com/woshimanong1990/local_file_share) | _\"Share local file to other people, OR smartphone download files which is in PC.\"_ |\n| [qrcp](https://github.com/pearl2201/qrcp) | A desktop app clone of `qrcp`, written with C# and .NET Core, works for Windows. |\n| [swift_file](https://github.com/mateoradman/swift_file) | Rust project inspired by `qrcp`. |\n| [qrcp-android](https://github.com/ianfixes/qrcp-android) | Android app inspired by `qrcp`. |\n\n---\n\n## License\n\nMIT. See [LICENSE](LICENSE).\n" }, { "path": "docs/tutorials/secure-transfers-with-mkcert.md", "content": "# Secure transfers with mkcert\n\n_Published on October 14th, 2020, by [Claudio d'Angelis](https://claudiodangelis.com)._\n\n\nIn this tutorial you will learn how to securely transfer files with qrcp by creating a local Certificate Authority using [mkcert](https://github.com/FiloSottile/mkcert) and generating a certificate for `qrcp`. From its README, **mkcert** _is a simple tool for making locally-trusted development certificates. It requires no configuration._\n\nThe following values will be used for this tutorial, they refer to a typical Linux system and may differ for you according to your operating system:\n\n| Name | Value |\n| --- | --- |\n| IP of the computer/laptop | `192.168.1.107` |\n| Root certificate path | `~/.local/share/mkcert/rootCA.pem` |\n| Certificate path | `~/certs/192.168.1.107.pem` |\n| Certificate key | `~/certs/192.168.1.107-key.pem` | \n| Transferred file | `MyDocument.pdf` |\n\n**Note**: secure transfers are only supported by `qrcp` version `0.7.0` and above.\n\n## Generate certificates\n\nOpen your terminal, create a directory called `certs` and change to it\nInstall **mkcert** _(refer to the [README](https://github.com/FiloSottile/mkcert#installation))_.\n\nGenerate the Certificate Authority:\n```\nmkcert --install\n```\n\nIf everything worked correctly, you should see the similar output:\n```\nCreated a new local CA at \"/home/me/.local/share/mkcert\"\nSudo password:\nThe local CA is now installed in the system trust store! ⚡️\nThe local CA is now installed in the Firefox and/or Chrome/Chromium trust store (requires browser restart)!\n```\n\nGenerate a certificate for the IP of your computer/laptop:\n\n```\nmkcert 192.168.1.107\n```\nYou should see a similar output:\n\n```\nUsing the local CA at \"/home/me/.local/share/mkcert\"\n\nCreated a new certificate valid for the following names \n - \"192.168.1.107\"\n\nThe certificate is at \"./192.168.1.107.pem\" and the key at \"./192.168.1.107-key.pem\" \n\n```\n\nAt this point you should securely upload the root certificate generated by mkcert to your mobile phone. You have a few options for this, the simplest is just sending it by email. You can check the location of the root certificate's parent directory by running:\n\n```\nmkcert --CAROOT\n```\n\nIf you are using **iOS**, you should _trust_ the certificate authority, you can find more information here: [Trust manually installed certificate profiles in iOS and iPadOS](https://support.apple.com/en-nz/HT204477).\n\nIf you are using **Android**, you must convert the root certificate from PEM format to DER format. Note that you may need to install the `openssl` tool.\n\n```\nopenssl x509 -inform PEM -outform DER -in $(mkcert --CAROOT)/rootCA.pem -out $(mkcert --CAROOT)/rootCA.der.crt\n```\n\nUpload the converted certificate to your Android device, and install it by simply opening the file. When asked to enter the certificate name, you can enter a friendly name, for example \"mkcert\".\n\n## Transfer something!\n\nYou are now ready to securely transfer a file using the certificates generated by mkcert:\n\n```\nqrcp --tls-cert ~/certs/192.168.1.107.pem --tls-key ~/certs/192.168.1.107-key.pem screenshot.png\n```\n\nThe output will be something like this (note that the printed URL starts with \"https\"):\n```\nScan the following URL with a QR reader to start the file transfer:\nhttps://192.168.1.107:40221/send/ljd7\n█████████████████████████████████████\n█████████████████████████████████████\n████ ▄▄▄▄▄ █ █▀▀ █▀ ▄█▄▀▀█ ▄▄▄▄▄ ████\n████ █ █ █▀█▄▄▄▄▄▄█▄█▄██ █ █ ████\n████ █▄▄▄█ ██▀▄▄▀▄▀█▀█ ▀▄█ █▄▄▄█ ████\n████▄▄▄▄▄▄▄█ ▀▄█ ▀ ▀ ▀ █ █▄▄▄▄▄▄▄████\n████ ▀▄ ▀▄▄ ▀██▀▄▄▄▄ ▄█▀▄██▄█▄ ████\n████▀▀ █▄▀▀ ▄▄█▀ █▀▄█▄▀ ▄▄██▄▄▀████\n████▀█ ▀█▄▄█ ▄██ ▀██▀▀ ▄█▀▀█▄ ▀▀████\n████ █▀█▀▄ █ ▄ ▀▄ ▀▄██ █▀█▄ ▄████\n█████ ▀ ▀▀▄ ▄▀█ ▀██▄█▄▀▄██ ▀ ▀ █████\n████▄████▄▄ ▀█ ▀████▄█▄ ▄▀█ █ ██████\n█████▄█▄▄▄▄█▀ ▀█ ▀ ▀▀ ▄▄▄ ▀▀████\n████ ▄▄▄▄▄ █ █▄▄▄█ █▀█ █▄█ █▄▀████\n████ █ █ █▀ ▀ ▄▀ █ █▀ ▄ ▄▀▄▄▄████\n████ █▄▄▄█ █▄█▄█ ▀▀▀▄▀ █▄▄ █▀█▄▀▄████\n████▄▄▄▄▄▄▄█▄▄▄██▄▄▄█▄▄██▄█▄█▄▄▄█████\n█████████████████████████████████████\n▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀\n```\n\nScan the QR and the file will be securely transferred to your mobile. Congratulations!\n\n## Configure qrcp to default to those value\n\nIf you want to make this setup persistent so that all transfers will be secured by default, run the wizard with `qrcp config` and make sure the choose the right values to the following questions:\n\n_(**Note**: you must enter the **absolute path** of the certificates)_\n\n- Should files be securely transferred with HTTPS? \n **Yes**\n- Choose TLS certificate path. Empty if not using HTTPS \n **/home/user/certs/192.168.1.107.pem**\n- Choose TLS certificate key. Empty if not using HTTPS \n **/home/user/certs/192.168.1.107-key.pem**\n\nAfter configuring qrcp, all transfers will be always secured.\nIf you'll want to temporarily disable security, just add the `--secure=false` flag.\n\nSecure transfer:\n```\nqrcp MyDocument.pdf\n```\n\nInsecure transfer:\n```\nqrcp --secure=false MyDocument.pdf\n```\n\n## Conclusion\n\nIn this tutorial we have seen how to:\n- create a local certificate authority with `mkcert`\n- issue a certificate for your computer/laptop\n- use that certificate to secure the transferring of a file with `qrcp`\n\nIf you want to learn more about HTTPS and secure connections, have a look at the [How HTTPS works ...in a comic!](https://howhttps.works/) website.\n\n## Useful Links\n\n- [qrcp homepage](https://github.com/claudiodangelis/qrcp)\n- [mkcert homepage](https://github.com/FiloSottile/mkcert)\n- [qrcp Telegram channel](https://t.me/qrcp_dev)" }, { "path": "docs/update-docs.sh", "content": "#!/bin/bash\nif ! [[ $(git rev-parse --show-toplevel 2>/dev/null) = \"$PWD\" ]]; then\n echo \"error: script should be run from the root of the repository\"\n exit 1\nfi\ncp README.md docs/index.md\nfind docs -name \"*.md\" | while read page\ndo\n sed -i 's/docs\\/img/img/g' $page\ndone\n" }, { "path": "go.mod", "content": "module github.com/claudiodangelis/qrcp\n\ngo 1.21.0\n\ntoolchain go1.24.1\n\nrequire (\n\tgithub.com/adrg/xdg v0.5.3\n\tgithub.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496\n\tgithub.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807\n\tgithub.com/glendc/go-external-ip v0.1.0\n\tgithub.com/jhoonb/archivex v0.0.0-20180718040744-0488e4ce1681\n\tgithub.com/manifoldco/promptui v0.9.0\n\tgithub.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086\n\tgithub.com/spf13/cobra v1.9.1\n\tgithub.com/spf13/viper v1.20.0\n\tgopkg.in/cheggaaa/pb.v1 v1.0.28\n\tgopkg.in/yaml.v2 v2.4.0\n)\n\nrequire (\n\tgithub.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e // indirect\n\tgithub.com/fatih/color v1.18.0 // indirect\n\tgithub.com/fsnotify/fsnotify v1.8.0 // indirect\n\tgithub.com/go-viper/mapstructure/v2 v2.2.1 // indirect\n\tgithub.com/inconshreveable/mousetrap v1.1.0 // indirect\n\tgithub.com/mattn/go-colorable v0.1.14 // indirect\n\tgithub.com/mattn/go-runewidth v0.0.9 // indirect\n\tgithub.com/pelletier/go-toml/v2 v2.2.3 // indirect\n\tgithub.com/sagikazarmark/locafero v0.7.0 // indirect\n\tgithub.com/sourcegraph/conc v0.3.0 // indirect\n\tgithub.com/spf13/afero v1.12.0 // indirect\n\tgithub.com/spf13/cast v1.7.1 // indirect\n\tgithub.com/spf13/pflag v1.0.6 // indirect\n\tgithub.com/subosito/gotenv v1.6.0 // indirect\n\tgo.uber.org/atomic v1.9.0 // indirect\n\tgo.uber.org/multierr v1.9.0 // indirect\n\tgolang.org/x/sys v0.29.0 // indirect\n\tgolang.org/x/text v0.21.0 // indirect\n\tgopkg.in/yaml.v3 v3.0.1 // indirect\n)\n" }, { "path": "go.sum", "content": "github.com/adrg/xdg v0.5.3 h1:xRnxJXne7+oWDatRhR1JLnvuccuIeCoBu2rtuLqQB78=\ngithub.com/adrg/xdg v0.5.3/go.mod h1:nlTsY+NNiCBGCK2tpm09vRqfVzrc2fLmXGpBLF0zlTQ=\ngithub.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496 h1:zV3ejI06GQ59hwDQAvmK1qxOQGB3WuVTRoY0okPTAv0=\ngithub.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg=\ngithub.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=\ngithub.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=\ngithub.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=\ngithub.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=\ngithub.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=\ngithub.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=\ngithub.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=\ngithub.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=\ngithub.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=\ngithub.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=\ngithub.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807 h1:jdjd5e68T4R/j4PWxfZqcKY8KtT9oo8IPNVuV4bSXDQ=\ngithub.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807/go.mod h1:Xoiu5VdKMvbRgHuY7+z64lhu/7lvax/22nzASF6GrO8=\ngithub.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=\ngithub.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=\ngithub.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=\ngithub.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=\ngithub.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=\ngithub.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=\ngithub.com/glendc/go-external-ip v0.1.0 h1:iX3xQ2Q26atAmLTbd++nUce2P5ht5P4uD4V7caSY/xg=\ngithub.com/glendc/go-external-ip v0.1.0/go.mod h1:CNx312s2FLAJoWNdJWZ2Fpf5O4oLsMFwuYviHjS4uJE=\ngithub.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=\ngithub.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=\ngithub.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=\ngithub.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=\ngithub.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=\ngithub.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=\ngithub.com/jhoonb/archivex v0.0.0-20180718040744-0488e4ce1681 h1:EiEjLram6Y0WXygV4WyzKmTr3XaR4CD3tvjdTrsk3cU=\ngithub.com/jhoonb/archivex v0.0.0-20180718040744-0488e4ce1681/go.mod h1:GN1Mg/uXQ6qwXA0HypnUO3xlcQJS9/y68EsHNeuuRa4=\ngithub.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=\ngithub.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=\ngithub.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=\ngithub.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=\ngithub.com/manifoldco/promptui v0.9.0 h1:3V4HzJk1TtXW1MTZMP7mdlwbBpIinw3HztaIlYthEiA=\ngithub.com/manifoldco/promptui v0.9.0/go.mod h1:ka04sppxSGFAtxX0qhlYQjISsg9mR4GWtQEhdbn6Pgg=\ngithub.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=\ngithub.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=\ngithub.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=\ngithub.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=\ngithub.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=\ngithub.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=\ngithub.com/pelletier/go-toml/v2 v2.2.3 h1:YmeHyLY8mFWbdkNWwpr+qIL2bEqT0o95WSdkNHvL12M=\ngithub.com/pelletier/go-toml/v2 v2.2.3/go.mod h1:MfCQTFTvCcUyyvvwm1+G6H/jORL20Xlb6rzQu9GuUkc=\ngithub.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=\ngithub.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=\ngithub.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=\ngithub.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=\ngithub.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=\ngithub.com/sagikazarmark/locafero v0.7.0 h1:5MqpDsTGNDhY8sGp0Aowyf0qKsPrhewaLSsFaodPcyo=\ngithub.com/sagikazarmark/locafero v0.7.0/go.mod h1:2za3Cg5rMaTMoG/2Ulr9AwtFaIppKXTRYnozin4aB5k=\ngithub.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086 h1:RYiqpb2ii2Z6J4x0wxK46kvPBbFuZcdhS+CIztmYgZs=\ngithub.com/skip2/go-qrcode v0.0.0-20191027152451-9434209cb086/go.mod h1:PLPIyL7ikehBD1OAjmKKiOEhbvWyHGaNDjquXMcYABo=\ngithub.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=\ngithub.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=\ngithub.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=\ngithub.com/spf13/afero v1.12.0/go.mod h1:ZTlWwG4/ahT8W7T0WQ5uYmjI9duaLQGy3Q2OAl4sk/4=\ngithub.com/spf13/cast v1.7.1 h1:cuNEagBQEHWN1FnbGEjCXL2szYEXqfJPbP2HNUaca9Y=\ngithub.com/spf13/cast v1.7.1/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=\ngithub.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=\ngithub.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=\ngithub.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=\ngithub.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=\ngithub.com/spf13/viper v1.20.0 h1:zrxIyR3RQIOsarIrgL8+sAvALXul9jeEPa06Y0Ph6vY=\ngithub.com/spf13/viper v1.20.0/go.mod h1:P9Mdzt1zoHIG8m2eZQinpiBjo6kCmZSKBClNNqjJvu4=\ngithub.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=\ngithub.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=\ngithub.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=\ngithub.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=\ngithub.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=\ngithub.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=\ngo.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=\ngo.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=\ngo.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=\ngo.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ=\ngolang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=\ngolang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=\ngolang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=\ngolang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=\ngolang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=\ngopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=\ngopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=\ngopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=\ngopkg.in/cheggaaa/pb.v1 v1.0.28 h1:n1tBJnnK2r7g9OW2btFH91V92STTUevLXYFb8gy9EMk=\ngopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=\ngopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=\ngopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=\ngopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=\ngopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=\n" }, { "path": "logger/logger.go", "content": "package logger\n\nimport (\n\t\"fmt\"\n)\n\n// Print prints its argument if the --quiet flag is not passed\nfunc (l Logger) Print(args ...interface{}) {\n\tif !l.quiet {\n\t\tfmt.Println(args...)\n\t}\n}\n\n// Logger struct\ntype Logger struct {\n\tquiet bool\n}\n\n// New logger\nfunc New(quiet bool) Logger {\n\treturn Logger{\n\t\tquiet: quiet,\n\t}\n}\n" }, { "path": "main.go", "content": "package main\n\nimport (\n\t\"os\"\n\n\t\"github.com/claudiodangelis/qrcp/cmd\"\n)\n\nfunc main() {\n\tif err := cmd.Execute(); err != nil {\n\t\tos.Exit(1)\n\t}\n}\n" }, { "path": "pages/pages.go", "content": "package pages\n\n// Upload page\nvar Upload = `\n\n\n\n\n \n \n \n \n qrcp\n \n\n\n\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n
\n
\n

Send files or text

\n
\n \n \n
\n
\n \n \n
\n
\n
\n \n \n
\n
\n \n \n
\n
\n
\n
\n \n
\n
\n
\n
\n \n \n\n\n`\n\n// Done page\nvar Done = `\n\n\n\n\n \n \n \n qrcp\n \n\n\n\n
\n
\n

Done!

\n

\n Successfully transferred to:
{{.File}}.
You can close this page now.\n

\n
\n
\n\n\n`\n" }, { "path": "qr/qr.go", "content": "package qr\n\nimport (\n\t\"fmt\"\n\t\"image\"\n\t\"log\"\n\n\t\"github.com/skip2/go-qrcode\"\n)\n\n// RenderString as a QR code\nfunc RenderString(s string, inverseColor bool) {\n\tq, err := qrcode.New(s, qrcode.Medium)\n\tif err != nil {\n\t\tlog.Fatal(err)\n\t}\n\tfmt.Println(q.ToSmallString(inverseColor))\n}\n\n// RenderImage returns a QR code as an image.Image\nfunc RenderImage(s string) image.Image {\n\tq, err := qrcode.New(s, qrcode.Medium)\n\tif err != nil {\n\t\tlog.Fatal(err)\n\t}\n\treturn q.Image(256)\n}\n" }, { "path": "server/server.go", "content": "package server\n\nimport (\n\t\"context\"\n\t\"crypto/tls\"\n\t\"fmt\"\n\t\"image/jpeg\"\n\t\"io\"\n\t\"log\"\n\t\"net\"\n\t\"net/http\"\n\t\"net/url\"\n\t\"os\"\n\t\"os/exec\"\n\t\"os/signal\"\n\t\"path/filepath\"\n\t\"runtime\"\n\t\"strings\"\n\t\"sync\"\n\n\t\"github.com/claudiodangelis/qrcp/qr\"\n\n\t\"github.com/claudiodangelis/qrcp/body\"\n\t\"github.com/claudiodangelis/qrcp/config\"\n\t\"github.com/claudiodangelis/qrcp/pages\"\n\t\"github.com/claudiodangelis/qrcp/util\"\n\t\"gopkg.in/cheggaaa/pb.v1\"\n)\n\n// Server is the server\ntype Server struct {\n\tBaseURL string\n\t// SendURL is the URL used to send the file\n\tSendURL string\n\t// ReceiveURL is the URL used to Receive the file\n\tReceiveURL string\n\tinstance *http.Server\n\tbody body.Body\n\toutputDir string\n\tstopChannel chan bool\n\t// expectParallelRequests is set to true when qrcp sends files, in order\n\t// to support downloading of parallel chunks\n\texpectParallelRequests bool\n}\n\n// ReceiveTo sets the output directory\nfunc (s *Server) ReceiveTo(dir string) error {\n\toutput, err := filepath.Abs(dir)\n\tif err != nil {\n\t\treturn err\n\t}\n\t// Check if the output dir exists\n\tfileinfo, err := os.Stat(output)\n\tif err != nil {\n\t\treturn err\n\t}\n\tif !fileinfo.IsDir() {\n\t\treturn fmt.Errorf(\"%s is not a valid directory\", output)\n\t}\n\ts.outputDir = output\n\treturn nil\n}\n\n// Send adds a handler for sending the file\nfunc (s *Server) Send(p body.Body) {\n\ts.body = p\n\ts.expectParallelRequests = true\n}\n\n// DisplayQR creates a handler for serving the QR code in the browser\nfunc (s *Server) DisplayQR(url string) {\n\tconst PATH = \"/qr\"\n\tqrImg := qr.RenderImage(url)\n\thttp.HandleFunc(PATH, func(w http.ResponseWriter, r *http.Request) {\n\t\tw.Header().Set(\"Content-Type\", \"image/jpeg\")\n\t\tif err := jpeg.Encode(w, qrImg, nil); err != nil {\n\t\t\tpanic(err)\n\t\t}\n\t})\n\topenBrowser(s.BaseURL + PATH)\n}\n\n// Wait for transfer to be completed, it waits forever if kept awlive\nfunc (s Server) Wait() error {\n\t<-s.stopChannel\n\tif err := s.instance.Shutdown(context.Background()); err != nil {\n\t\tlog.Println(err)\n\t}\n\tif s.body.DeleteAfterTransfer {\n\t\tif err := s.body.Delete(); err != nil {\n\t\t\tpanic(err)\n\t\t}\n\t}\n\treturn nil\n}\n\n// Shutdown the server\nfunc (s Server) Shutdown() {\n\ts.stopChannel <- true\n}\n\n// New instance of the server\nfunc New(cfg *config.Config) (*Server, error) {\n\n\tapp := &Server{}\n\t// Get the address of the configured interface to bind the server to.\n\t// If `bind` configuration parameter has been configured, it takes precedence\n\tbind, err := util.GetInterfaceAddress(cfg.Interface)\n\tif err != nil {\n\t\treturn &Server{}, err\n\t}\n\tif cfg.Bind != \"\" {\n\t\tbind = cfg.Bind\n\t}\n\t// Create a listener. If `port: 0`, a random one is chosen\n\tlistener, err := net.Listen(\"tcp\", fmt.Sprintf(\"%s:%d\", bind, cfg.Port))\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\t// Set the value of computed port\n\tport := listener.Addr().(*net.TCPAddr).Port\n\t// Set the host\n\thost := fmt.Sprintf(\"%s:%d\", bind, port)\n\t// Get a random path to use\n\tpath := cfg.Path\n\tif path == \"\" {\n\t\tpath = util.GetRandomURLPath()\n\t}\n\t// Set the hostname\n\thostname := fmt.Sprintf(\"%s:%d\", bind, port)\n\t// Use external IP when using `interface: any`, unless a FQDN is set\n\tif bind == \"0.0.0.0\" && cfg.FQDN == \"\" {\n\t\tfmt.Println(\"Retrieving the external IP...\")\n\t\textIP, err := util.GetExternalIP()\n\t\tif err != nil {\n\t\t\tpanic(err)\n\t\t}\n\t\textIPString := extIP.String()\n\t\tfmtstring := \"%s:%d\"\n\t\tif strings.Count(extIPString, \":\") >= 2 {\n\t\t\t// IPv6 address, wrap it in [] to add a port\n\t\t\tfmtstring = \"[%s]:%d\"\n\t\t}\n\t\thostname = fmt.Sprintf(fmtstring, extIPString, port)\n\t}\n\t// Use a fully-qualified domain name if set\n\tif cfg.FQDN != \"\" {\n\t\thostname = fmt.Sprintf(\"%s:%d\", cfg.FQDN, port)\n\t}\n\t// Set URLs\n\tprotocol := \"http\"\n\tif cfg.Secure {\n\t\tprotocol = \"https\"\n\t}\n\tapp.BaseURL = fmt.Sprintf(\"%s://%s\", protocol, hostname)\n\tapp.SendURL = fmt.Sprintf(\"%s/send/%s\",\n\t\tapp.BaseURL, path)\n\tapp.ReceiveURL = fmt.Sprintf(\"%s/receive/%s\",\n\t\tapp.BaseURL, path)\n\t// Create a server\n\thttpserver := &http.Server{\n\t\tAddr: host,\n\t\tTLSConfig: &tls.Config{\n\t\t\tMinVersion: tls.VersionTLS12,\n\t\t\tCurvePreferences: []tls.CurveID{tls.CurveP521, tls.CurveP384, tls.CurveP256},\n\t\t\tPreferServerCipherSuites: true,\n\t\t\tCipherSuites: []uint16{\n\t\t\t\ttls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,\n\t\t\t\ttls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,\n\t\t\t\ttls.TLS_RSA_WITH_AES_256_GCM_SHA384,\n\t\t\t\ttls.TLS_RSA_WITH_AES_256_CBC_SHA,\n\t\t\t},\n\t\t},\n\t\tTLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler)),\n\t}\n\t// Create channel to send message to stop server\n\tapp.stopChannel = make(chan bool)\n\t// Create cookie used to verify request is coming from first client to connect\n\tcookie := http.Cookie{Name: \"qrcp\", Value: \"\"}\n\t// Gracefully shutdown when an OS signal is received or when \"q\" is pressed\n\tsig := make(chan os.Signal, 1)\n\tsignal.Notify(sig, os.Interrupt)\n\tgo func() {\n\t\t<-sig\n\t\tapp.stopChannel <- true\n\t}()\n\t// The handler adds and removes from the sync.WaitGroup\n\t// When the group is zero all requests are completed\n\t// and the server is shutdown\n\tvar waitgroup sync.WaitGroup\n\twaitgroup.Add(1)\n\tvar initCookie sync.Once\n\t// Create handlers\n\t// Send handler (sends file to caller)\n\thttp.HandleFunc(\"/send/\"+path, func(w http.ResponseWriter, r *http.Request) {\n\t\tif !cfg.KeepAlive && strings.HasPrefix(r.Header.Get(\"User-Agent\"), \"Mozilla\") {\n\t\t\tif cookie.Value == \"\" {\n\t\t\t\tinitCookie.Do(func() {\n\t\t\t\t\tvalue, err := util.GetSessionID()\n\t\t\t\t\tif err != nil {\n\t\t\t\t\t\tlog.Println(\"Unable to generate session ID\", err)\n\t\t\t\t\t\tapp.stopChannel <- true\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tcookie.Value = value\n\t\t\t\t\thttp.SetCookie(w, &cookie)\n\t\t\t\t})\n\t\t\t} else {\n\t\t\t\t// Check for the expected cookie and value\n\t\t\t\t// If it is missing or doesn't match\n\t\t\t\t// return a 400 status\n\t\t\t\trcookie, err := r.Cookie(cookie.Name)\n\t\t\t\tif err != nil {\n\t\t\t\t\thttp.Error(w, err.Error(), http.StatusBadRequest)\n\t\t\t\t\treturn\n\t\t\t\t}\n\t\t\t\tif rcookie.Value != cookie.Value {\n\t\t\t\t\thttp.Error(w, \"mismatching cookie\", http.StatusBadRequest)\n\t\t\t\t\treturn\n\t\t\t\t}\n\t\t\t\t// If the cookie exits and matches\n\t\t\t\t// this is an aadditional request.\n\t\t\t\t// Increment the waitgroup\n\t\t\t\twaitgroup.Add(1)\n\t\t\t}\n\t\t\t// Remove connection from the waitgroup when done\n\t\t\tdefer waitgroup.Done()\n\t\t}\n\t\tw.Header().Set(\"Content-Disposition\", \"attachment; filename=\\\"\"+\n\t\t\tapp.body.Filename+\n\t\t\t\"\\\"; filename*=UTF-8''\"+\n\t\t\turl.QueryEscape(app.body.Filename))\n\t\thttp.ServeFile(w, r, app.body.Path)\n\t})\n\t// Upload handler (serves the upload page)\n\thttp.HandleFunc(\"/receive/\"+path, func(w http.ResponseWriter, r *http.Request) {\n\t\thtmlVariables := struct {\n\t\t\tRoute string\n\t\t\tFile string\n\t\t}{}\n\t\thtmlVariables.Route = \"/receive/\" + path\n\t\tswitch r.Method {\n\t\tcase \"POST\":\n\t\t\tfilenames := util.ReadFilenames(app.outputDir)\n\t\t\treader, err := r.MultipartReader()\n\t\t\tif err != nil {\n\t\t\t\tfmt.Fprintf(w, \"Upload error: %v\\n\", err)\n\t\t\t\tlog.Printf(\"Upload error: %v\\n\", err)\n\t\t\t\tapp.stopChannel <- true\n\t\t\t\treturn\n\t\t\t}\n\t\t\ttransferredFiles := []string{}\n\t\t\tprogressBar := pb.New64(r.ContentLength)\n\t\t\tprogressBar.ShowCounters = false\n\t\t\tfor {\n\t\t\t\tpart, err := reader.NextPart()\n\t\t\t\tif err == io.EOF {\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t\t// iIf part.FileName() is empty, skip this iteration.\n\t\t\t\tif part.FileName() == \"\" {\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\t// Prepare the destination\n\t\t\t\tfileName := getFileName(filepath.Base(part.FileName()), filenames)\n\t\t\t\tout, err := os.Create(filepath.Join(app.outputDir, fileName))\n\t\t\t\tif err != nil {\n\t\t\t\t\t// Output to server\n\t\t\t\t\tfmt.Fprintf(w, \"Unable to create the file for writing: %s\\n\", err)\n\t\t\t\t\t// Output to console\n\t\t\t\t\tlog.Printf(\"Unable to create the file for writing: %s\\n\", err)\n\t\t\t\t\t// Send signal to server to shutdown\n\t\t\t\t\tapp.stopChannel <- true\n\t\t\t\t\treturn\n\t\t\t\t}\n\t\t\t\tdefer out.Close()\n\t\t\t\t// Add name of new file\n\t\t\t\tfilenames = append(filenames, fileName)\n\t\t\t\t// Write the content from POSTed file to the out\n\t\t\t\tfmt.Println(\"Transferring file: \", out.Name())\n\t\t\t\tprogressBar.Prefix(out.Name())\n\t\t\t\tprogressBar.Start()\n\t\t\t\tbuf := make([]byte, 1024)\n\t\t\t\tfor {\n\t\t\t\t\t// Read a chunk\n\t\t\t\t\tn, err := part.Read(buf)\n\t\t\t\t\tif err != nil && err != io.EOF {\n\t\t\t\t\t\t// Output to server\n\t\t\t\t\t\tfmt.Fprintf(w, \"Unable to write file to disk: %v\", err)\n\t\t\t\t\t\t// Output to console\n\t\t\t\t\t\tfmt.Printf(\"Unable to write file to disk: %v\", err)\n\t\t\t\t\t\t// Send signal to server to shutdown\n\t\t\t\t\t\tapp.stopChannel <- true\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tif n == 0 {\n\t\t\t\t\t\tbreak\n\t\t\t\t\t}\n\t\t\t\t\t// Write a chunk\n\t\t\t\t\tif _, err := out.Write(buf[:n]); err != nil {\n\t\t\t\t\t\t// Output to server\n\t\t\t\t\t\tfmt.Fprintf(w, \"Unable to write file to disk: %v\", err)\n\t\t\t\t\t\t// Output to console\n\t\t\t\t\t\tlog.Printf(\"Unable to write file to disk: %v\", err)\n\t\t\t\t\t\t// Send signal to server to shutdown\n\t\t\t\t\t\tapp.stopChannel <- true\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tprogressBar.Add(n)\n\t\t\t\t}\n\t\t\t\ttransferredFiles = append(transferredFiles, out.Name())\n\t\t\t}\n\t\t\tprogressBar.FinishPrint(\"File transfer completed\")\n\t\t\t// Set the value of the variable to the actually transferred files\n\t\t\thtmlVariables.File = strings.Join(transferredFiles, \", \")\n\t\t\tserveTemplate(\"done\", pages.Done, w, htmlVariables)\n\t\t\tif !cfg.KeepAlive {\n\t\t\t\tapp.stopChannel <- true\n\t\t\t}\n\t\tcase \"GET\":\n\t\t\tserveTemplate(\"upload\", pages.Upload, w, htmlVariables)\n\t\t}\n\t})\n\t// Wait for all wg to be done, then send shutdown signal\n\tgo func() {\n\t\twaitgroup.Wait()\n\t\tif cfg.KeepAlive || !app.expectParallelRequests {\n\t\t\treturn\n\t\t}\n\t\tapp.stopChannel <- true\n\t}()\n\tgo func() {\n\t\tnetListener := tcpKeepAliveListener{listener.(*net.TCPListener)}\n\t\tif cfg.Secure {\n\t\t\tif err := httpserver.ServeTLS(netListener, cfg.TlsCert, cfg.TlsKey); err != http.ErrServerClosed {\n\t\t\t\tlog.Fatalln(\"error starting the server:\", err)\n\t\t\t}\n\t\t} else {\n\t\t\tif err := httpserver.Serve(netListener); err != http.ErrServerClosed {\n\t\t\t\tlog.Fatalln(\"error starting the server\", err)\n\t\t\t}\n\t\t}\n\t}()\n\tapp.instance = httpserver\n\treturn app, nil\n}\n\n// openBrowser navigates to a url using the default system browser\nfunc openBrowser(url string) {\n\tvar err error\n\tswitch runtime.GOOS {\n\tcase \"linux\":\n\t\terr = exec.Command(\"xdg-open\", url).Start()\n\tcase \"windows\":\n\t\terr = exec.Command(\"rundll32\", \"url.dll,FileProtocolHandler\", url).Start()\n\tcase \"darwin\":\n\t\terr = exec.Command(\"open\", url).Start()\n\tdefault:\n\t\terr = fmt.Errorf(\"failed to open browser on platform: %s\", runtime.GOOS)\n\t}\n\tif err != nil {\n\t\tlog.Fatal(err)\n\t}\n}\n" }, { "path": "server/tcpkeepalivelistener.go", "content": "package server\n\n// Copyright (c) 2009 The Go Authors. All rights reserved.\n\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport (\n\t\"net\"\n\t\"time\"\n)\n\n// tcpKeepAliveListener applies TCP keepalives to the listener\ntype tcpKeepAliveListener struct {\n\t*net.TCPListener\n}\n\n// Accept accepts TCP\nfunc (ln tcpKeepAliveListener) Accept() (net.Conn, error) {\n\ttc, err := ln.AcceptTCP()\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\tif err := tc.SetKeepAlive(true); err != nil {\n\t\tpanic(err)\n\t}\n\tif err := tc.SetKeepAlivePeriod(3 * time.Minute); err != nil {\n\t\tpanic(err)\n\t}\n\treturn tc, nil\n}\n" }, { "path": "server/util.go", "content": "package server\n\nimport (\n\t\"fmt\"\n\t\"html/template\"\n\t\"io\"\n\t\"path/filepath\"\n\t\"strings\"\n)\n\nfunc serveTemplate(name string, tmpl string, w io.Writer, data interface{}) {\n\tt, err := template.New(name).Parse(tmpl)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\tif err := t.Execute(w, data); err != nil {\n\t\tpanic(err)\n\t}\n}\n\n// getFileName generates a file name based on the existing files in the directory\n// if name isn't taken leave it unchanged\n// else change name to format \"name(number).ext\"\nfunc getFileName(newFilename string, fileNamesInTargetDir []string) string {\n\tfileExt := filepath.Ext(newFilename)\n\tfileName := strings.TrimSuffix(newFilename, fileExt)\n\tnumber := 1\n\ti := 0\n\tfor i < len(fileNamesInTargetDir) {\n\t\tif newFilename == fileNamesInTargetDir[i] {\n\t\t\tnewFilename = fmt.Sprintf(\"%s(%v)%s\", fileName, number, fileExt)\n\t\t\tnumber++\n\t\t\ti = 0\n\t\t}\n\t\ti++\n\t}\n\treturn newFilename\n}\n" }, { "path": "util/net.go", "content": "package util\n\nimport (\n\t\"net\"\n\t\"regexp\"\n\n\texternalip \"github.com/glendc/go-external-ip\"\n)\n\n// Interfaces returns a `name:ip` map of the suitable interfaces found\nfunc Interfaces(listAll bool) (map[string]string, error) {\n\tnames := make(map[string]string)\n\tifaces, err := net.Interfaces()\n\tif err != nil {\n\t\treturn names, err\n\t}\n\tvar re = regexp.MustCompile(`^(veth|br\\-|docker|lo|EHC|XHC|bridge|gif|stf|p2p|awdl|utun|tun|tap)`)\n\tfor _, iface := range ifaces {\n\t\tif !listAll && re.MatchString(iface.Name) {\n\t\t\tcontinue\n\t\t}\n\t\tif iface.Flags&net.FlagUp == 0 {\n\t\t\tcontinue\n\t\t}\n\t\tip, err := FindIP(iface)\n\t\tif err != nil {\n\t\t\tcontinue\n\t\t}\n\t\tnames[iface.Name] = ip\n\t}\n\treturn names, nil\n}\n\n// GetExternalIP of this host\nfunc GetExternalIP() (net.IP, error) {\n\tconsensus := externalip.DefaultConsensus(nil, nil)\n\t// Get your IP, which is never when err is \n\tip, err := consensus.ExternalIP()\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\treturn ip, nil\n}\n" }, { "path": "util/util.go", "content": "package util\n\nimport (\n\t\"crypto/rand\"\n\t\"encoding/base64\"\n\t\"errors\"\n\t\"io\"\n\t\"net\"\n\t\"os\"\n\t\"os/user\"\n\t\"path/filepath\"\n\t\"runtime\"\n\t\"strconv\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/jhoonb/archivex\"\n)\n\n// Expand tilde in paths\nfunc Expand(input string) string {\n\tif runtime.GOOS == \"windows\" {\n\t\treturn input\n\t}\n\tusr, _ := user.Current()\n\tdir := usr.HomeDir\n\tif input == \"~\" {\n\t\tinput = dir\n\t} else if strings.HasPrefix(input, \"~/\") {\n\t\tinput = filepath.Join(dir, input[2:])\n\t}\n\treturn input\n}\n\n// ZipFiles and return the resulting zip's filename\nfunc ZipFiles(files []string) (string, error) {\n\tzip := new(archivex.ZipFile)\n\ttmpfile, err := os.CreateTemp(\"\", \"qrcp\")\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\ttmpfile.Close()\n\tif err := os.Rename(tmpfile.Name(), tmpfile.Name()+\".zip\"); err != nil {\n\t\treturn \"\", err\n\t}\n\ttmpfile, err = os.OpenFile(tmpfile.Name()+\".zip\", os.O_RDWR, 0644)\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\tif err := zip.CreateWriter(tmpfile.Name(), tmpfile); err != nil {\n\t\treturn \"\", err\n\t}\n\n\tfor _, filename := range files {\n\t\tfileinfo, err := os.Stat(filename)\n\t\tif err != nil {\n\t\t\treturn \"\", err\n\t\t}\n\t\tif fileinfo.IsDir() {\n\t\t\tif err := zip.AddAll(filename, true); err != nil {\n\t\t\t\treturn \"\", err\n\t\t\t}\n\t\t} else {\n\t\t\tfile, err := os.Open(filename)\n\t\t\tif err != nil {\n\t\t\t\treturn \"\", err\n\t\t\t}\n\t\t\tdefer file.Close()\n\t\t\tif err := zip.Add(filename, file, fileinfo); err != nil {\n\t\t\t\treturn \"\", err\n\t\t\t}\n\t\t}\n\t}\n\n\tif err := zip.Writer.Close(); err != nil {\n\t\treturn \"\", err\n\t}\n\tif err := tmpfile.Close(); err != nil {\n\t\treturn \"\", err\n\t}\n\n\treturn zip.Name, nil\n}\n\n// GetRandomURLPath returns a random string of 4 alphanumeric characters\nfunc GetRandomURLPath() string {\n\ttimeNum := time.Now().UTC().UnixNano()\n\talphaString := strconv.FormatInt(timeNum, 36)\n\treturn alphaString[len(alphaString)-4:]\n}\n\n// GetSessionID returns a base64 encoded string of 40 random characters\nfunc GetSessionID() (string, error) {\n\trandbytes := make([]byte, 40)\n\tif _, err := io.ReadFull(rand.Reader, randbytes); err != nil {\n\t\treturn \"\", err\n\t}\n\treturn base64.StdEncoding.EncodeToString(randbytes), nil\n}\n\n// GetInterfaceAddress returns the address of the network interface to\n// bind the server to. If the interface is \"any\", it will return 0.0.0.0.\n// If no interface is found with that name, an error is returned\nfunc GetInterfaceAddress(ifaceString string) (string, error) {\n\tif ifaceString == \"any\" {\n\t\treturn \"0.0.0.0\", nil\n\t}\n\tifaces, err := net.Interfaces()\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\tvar candidateInterface *net.Interface\n\tfor _, iface := range ifaces {\n\t\tif iface.Name == ifaceString {\n\t\t\tcandidateInterface = &iface\n\t\t\tbreak\n\t\t}\n\t}\n\tif candidateInterface != nil {\n\t\tip, err := FindIP(*candidateInterface)\n\t\tif err != nil {\n\t\t\treturn \"\", err\n\t\t}\n\t\treturn ip, nil\n\t}\n\treturn \"\", errors.New(\"unable to find interface\")\n}\n\n// FindIP returns the IP address of the passed interface, and an error\nfunc FindIP(iface net.Interface) (string, error) {\n\tvar ip string\n\taddrs, err := iface.Addrs()\n\tif err != nil {\n\t\treturn \"\", err\n\t}\n\tfor _, addr := range addrs {\n\t\tif ipnet, ok := addr.(*net.IPNet); ok {\n\t\t\tif ipnet.IP.IsLinkLocalUnicast() {\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tif ipnet.IP.To4() != nil {\n\t\t\t\tip = ipnet.IP.String()\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\t// Use IPv6 only if an IPv4 hasn't been found yet.\n\t\t\t// This is eventually overwritten with an IPv4, if found (see above)\n\t\t\tif ip == \"\" {\n\t\t\t\tip = \"[\" + ipnet.IP.String() + \"]\"\n\t\t\t}\n\t\t}\n\t}\n\tif ip == \"\" {\n\t\treturn \"\", errors.New(\"unable to find an IP for this interface\")\n\t}\n\treturn ip, nil\n}\n\n// ReadFilenames from dir\nfunc ReadFilenames(dir string) []string {\n\tfiles, err := os.ReadDir(dir)\n\tif err != nil {\n\t\tpanic(err)\n\t}\n\t// Create array of names of files which are stored in dir\n\t// used later to set valid name for received files\n\tfilenames := make([]string, 0, len(files))\n\tfor _, fi := range files {\n\t\tfilenames = append(filenames, fi.Name())\n\t}\n\treturn filenames\n}\n" }, { "path": "version/version.go", "content": "package version\n\nimport \"fmt\"\n\nvar (\n\tapp = \"qrcp\"\n\tversion = \"dev\"\n\tdate = \"n/a\"\n)\n\n// String returns a string representation of the build.\nfunc String() string {\n\treturn fmt.Sprintf(\"%s %s [date: %s]\", app, version, date)\n}\n" } ]