{"id":13906329,"url":"https://github.com/iyear/gowidevine","last_synced_at":"2025-04-09T13:03:58.920Z","repository":{"id":203997787,"uuid":"708099419","full_name":"iyear/gowidevine","owner":"iyear","description":"🐭 Go implementation of Google's Widevine DRM CDM (Content Decryption 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Tools"],"sub_categories":["Windows Manager","Widevine FairPlay PlayReady Integrations"],"readme":"\u003ch1 align=\"center\"\u003egowidevine\u003c/h1\u003e\n\n\u003cp align=\"center\"\u003e\n🐭 Go implementation of Google's Widevine DRM CDM (Content Decryption Module)\n\u003c/p\u003e\n\n\u003cp align=\"center\"\u003e\n\u003cimg src=\"https://img.shields.io/github/go-mod/go-version/iyear/gowidevine?style=flat-square\" alt=\"\"\u003e\n\u003cimg src=\"https://img.shields.io/github/license/iyear/gowidevine?style=flat-square\" alt=\"\"\u003e\n\u003cimg src=\"https://img.shields.io/github/actions/workflow/status/iyear/gowidevine/ci.yml?branch=master\u0026amp;style=flat-square\" alt=\"\"\u003e\n\u003cimg src=\"https://img.shields.io/github/v/release/iyear/gowidevine?color=red\u0026amp;style=flat-square\" alt=\"\"\u003e\n\u003c/p\u003e\n\n## Features\n\n- [x] Implementation of Widevine CDM/Device/Protobuf\n- [x] Decrypt MP4 with Widevine key\n- [x] Covered by realistic data tests\n- [x] Few third-party dependencies\n- [ ] License proxy server/client\n\n## Getting Started\n\n### Install\n\nYou first need [Go](https://go.dev/) installed (version 1.18+ is required), then you can use the below Go command to\ninstall gowidevine:\n\n```shell\ngo get -u github.com/iyear/gowidevine\n```\n\n### Import\n\nImport the package into your project:\n\n```go\nimport \"github.com/iyear/gowidevine\"\n```\n\n### Usage\n\n```go\npackage main\n\nimport (\n    \"bytes\"\n    \"fmt\"\n    \"io\"\n    \"net/http\"\n\n    widevine \"github.com/iyear/gowidevine\"\n    \"github.com/iyear/gowidevine/widevinepb\"\n)\n\nvar (\n    clientID   = []byte(\"foo\")\n    privateKey = []byte(\"bar\")\n    psshData   = []byte(\"baz\")\n)\n\nfunc main() {\n    keys, err := getKeys()\n    if err != nil {\n        panic(err)\n    }\n    if len(keys) == 0 {\n        panic(\"no keys\")\n    }\n\n    for _, key := range keys {\n        fmt.Printf(\"type: %s, id: %x, key: %x\\n\", key.Type, key.ID, key.Key)\n    }\n\n    err = widevine.DecryptMP4Auto(bytes.NewBufferString(\"encrypted data\"),\n        keys, io.Discard)\n    if err != nil {\n        panic(err)\n    }\n}\n\nfunc getKeys() ([]*widevine.Key, error) {\n    // Create device from raw data or from wvd file\n    device, err := widevine.NewDevice(\n        widevine.FromRaw(clientID, privateKey),\n        // widevine.FromWVD(bytes.NewReader([]byte(\"baz\"))),\n    )\n    if err != nil {\n        return nil, fmt.Errorf(\"create device: %w\", err)\n    }\n    // Create CDM\n    cdm := widevine.NewCDM(device)\n\n    // Parse PSSH\n    pssh, err := widevine.NewPSSH(psshData)\n    if err != nil {\n        return nil, fmt.Errorf(\"parse pssh: %w\", err)\n    }\n\n    // Get license challenge\n    challenge, parseLicense, err := cdm.GetLicenseChallenge(pssh, widevinepb.LicenseType_AUTOMATIC, false)\n    if err != nil {\n        return nil, fmt.Errorf(\"get license challenge: %w\", err)\n    }\n    // Or use privacy mode\n    cert, err := getServiceCert()\n    if err != nil {\n        return nil, fmt.Errorf(\"get service cert: %w\", err)\n    }\n    challenge, parseLicense, err = cdm.GetLicenseChallenge(pssh, widevinepb.LicenseType_AUTOMATIC, true, cert)\n    if err != nil {\n        return nil, fmt.Errorf(\"get license challenge: %w\", err)\n    }\n\n    // Send challenge to license server\n    resp, err := http.DefaultClient.Do(\u0026http.Request{Body: io.NopCloser(bytes.NewReader(challenge))})\n    if err != nil {\n        return nil, fmt.Errorf(\"request license: %w\", err)\n    }\n    defer func() { _ = resp.Body.Close() }()\n\n    license, err := io.ReadAll(resp.Body)\n    if err != nil {\n        return nil, fmt.Errorf(\"read resp: %w\", err)\n    }\n\n    // Parse license\n    keys, err := parseLicense(license)\n    if err != nil {\n        return nil, fmt.Errorf(\"parse license: %w\", err)\n    }\n\n    return keys, nil\n}\n\nfunc getServiceCert() (*widevinepb.DrmCertificate, error) {\n    resp, err := http.DefaultClient.Do(\u0026http.Request{Body: io.NopCloser(bytes.NewReader(widevine.ServiceCertificateRequest))})\n    if err != nil {\n        return nil, fmt.Errorf(\"request service cert: %w\", err)\n    }\n    defer func() { _ = resp.Body.Close() }()\n\n    serviceCert, err := io.ReadAll(resp.Body)\n    if err != nil {\n        return nil, fmt.Errorf(\"read response: %w\", err)\n    }\n\n    cert, err := widevine.ParseServiceCert(serviceCert)\n    if err != nil {\n        return nil, fmt.Errorf(\"parse service cert: %w\", err)\n    }\n\n    return cert, nil\n}\n```\n\n## Thanks\n\n- [pywidevine](https://github.com/rlaphoenix/pywidevine)\n- [mp4ff](https://github.com/Eyevinn/mp4ff/)\n\n## Disclaimer\n\n- The project does not provide Google-provisioned private key and client id except for test purpose.\n- The project does not condone piracy or any action against the terms of the DRM systems.\n- The project is for study and research only, please do not use it for commercial purposes.\n\n## License\n\nGPLv3 License\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fiyear%2Fgowidevine","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fiyear%2Fgowidevine","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fiyear%2Fgowidevine/lists"}