Extension:Graph/Plans/ja

このページではボランティアの皆さんからウィキメディア財団（WMF）職員が情報を集めて、従来は 拡張機能が対応してきたニーズを今後も保証するには、WMF がどんな役割を果たすべきかそれを参照して決めます.

工程表


📍 フェーズ0：ボランティアに工程表の評価を依頼
目標

ボランティアの理解が確実か、フェーズの 1-5 に本心で賛成しているかどうか、私たち（職員とボランティア）は実施に際して現れる意思決定／妥協の課題を、効率的にこなせるか.

工程


 * 1) ボランティアと WMF（財団担当）が工程表の案を協議し必要に応じて改善.



フェーズ1：サンドボックス型取り組みのセキュリティを検証
目標

サンドボックス型 iFrame のセキュリティ確保は 1)ベータクラスタ対象に Vega 5 を使ってグラフ拡張機能を展開することと、2)セキュリティ評価のために欠かせない解説文書とツール類をボランティアと職員に配布すること.

工程
 * 1) サンドボックス型の作業中パッチを完了、将来の工程の基本インフラを整備する.
 * 2) Create a “test box” page, either as an extension or a Special page in core, which allows execution of arbitrary JavaScript inside the infrastructure sandbox.
 * 3) 適切なサンドボックス用初期ルールを整え、ベータクラスタを対象に「テストボックス」を展開.
 * 4) Pen test the "test box" page to assess its security and refine the sandbox rules iteratively.
 * 5) Perform any relevant static security analysis against updated code prior to deployment.

Phase 2: Transition Graph Extension to Vega 5
目標

Ready the Graph Extension for Vega 5 by re-implementing Vega 2 features using the Vega 5-compatible syntax so that, going forward, all new graphs will benefit from Vega 5's security, accessibility, and syntax improvements.

工程
 * 1) Connect Vega 5 to the sandbox infrastructure; implement additional sandbox checks to the Vega 5 loader as necessary.
 * 2) (Re)implement protocol support for Vega 5, based on the Vega 2 implementations while assessing them for security and maintainability.
 * 3) サンドボックス型の Vega 5 をベータクラスタに展開、ボランティアに初期評価を実施してもらう.
 * 4) Test and evaluate "Vega 5-in-a-sandbox" approach.
 * 5) Conduct additional security testing with Vega5-specific payloads to follow up on the work in Phase 1.
 * 6) Convert the existing Vega 2-to-5 converter to a “2-to-5 tool”, which helps volunteers convert existing Vega 2 specifications to Vega 5 syntax.
 * 7) Implement a message similar to what Pietrasagh described that prompts people to migrate Vega 2-based graphs to Vega 5.

Phase 3: Define maintenance responsibilities and security/incident response
目標

Define what level of maintenance support volunteers can expect, who will be responsible for providing that support, and how we will respond to security/incident response going forward so that staff can feel confident deploying the extension and volunteers can feel confident depending on it.

工程
 * 1) Determine who within WMF will be responsible for security/incident response going forward.
 * 2) Define a maintenance and support plan that sets clear expectations about what volunteers can expect from WMF as it relates to the Graph Extension going forward and what team(s) will be responsible for delivering that support. E.g. upgrading to future versions of Vega and other tasks listed in Phase 5.

Phase 4: Deploy Graph Extension (Vega 5) in a Sandboxed iFrame with a restrictive content security policy to production
目標

Offer volunteers access to the information and capabilities disabling the Graph Extension has left them without.

必要なリソース開発（文書化 + ツール関係）をしてボランティアのパート作業に備える

工程
 * 1) In collaboration with volunteers, create “Vega 5 porting” page linking both to the upstream 2-to-5 porting documentation as well as specific information relative to Extension:Graph. E.g. changes to protocols, wiki best practices, related templates and modules, etc.
 * 2) If appropriate, documentation can also mention how to access the “last Vega 2” version of the graph-to-be-ported from archive.org.
 * 3) With community, port existing Lua modules which generate Vega 2 output to emit Vega 5 output instead.
 * 4) Port existing Vega 2 graphs to Vega 5 and offer tools that help ease this transition
 * 5) Build a more robust catalog of use cases and what Vega features can be relied on

Phase 5: Optimize the Graph Extension's longevity
目標

Optimize the Graph Extension's longevity and support the community building graphs on Wikimedia projects.

工程
 * 1) Deprecate, and then remove support for Vega 2 from the codebase, creating categories or linter tags to mark any remaining Vega 2 graphs.
 * 2) Formally transfer Graph Extension maintenance responsibilities to a Wikimedia Foundation engineering team.
 * 3) Create tools and document processes to facilitate routine updates to Vega from upstream for minor/patch/security releases and commit to an appropriate SLA.

よくある質問
ボランティアから聴き取りました.
 * 1) When can we expect to see a timeline for the Roadmap above?
 * 2) The team expects there to be a timeline to share during the first or second week of November 2023. By this time, we think we will know whether volunteers see any fundamental issues with the roadmap that warrant it being revised.
 * 3) Once re-enabled, will the Graph Extension support pseudo-protocols? Yes. Once the Graph Extension is re-enabled, it will support the protocols already implemented in T335325.  Of course, if there are particular ones you think ought to be supported, we'd value you naming them and sharing why on the talk page, as Snævar, Bawolff, Nikki, and Pietrasagh have started doing.    Please note: protocol support is a notably fragile part of the Graph Extension. If/when we come to learn this facet of the extension is causing problems, we might need to disable protocol support.
 * 4)  How much time – if any – will elapse between the Graph Extension being re-enabled with support for Vega 5 and support for Vega 2 being discontinued?   In short, we do not yet know when support for Vega 2 will be discontinued. This is a timeline we (staff + volunteers) will need to define together.  With the above said, here is what we are certain about at it relates to Vega 2 and Vega 5 support:
 * 5) Being able to provide guidance about when Vega 2 support will be discontinued depends on us first learning how the migration to Vega 5 is going.
 * 6) Vega 2 グラフのサポートは全く念頭にありません
 * 7) What can we do to preserve graphs that have not/can not be converted from Vega 2 to Vega 5?  Converting graphs of this sort on a server that allows sandboxed rendering exposes security vulnerabilities the current approach is meant to mitigate. More details in T334940#9161842.   With the above said, we estimate the graphs that have not/cannot be ported from Vega 2 to Vega 5 to be relatively small and comprised of:
 * 8) Graphs that use a custom protocol (e.g. Wikimedia API or WDQS) the sandboxed iFrame approach does not support.
 * 9) Graphs that can be ported, but no one has undertaken the work to do so.
 * 10) Vega 2 から Vega 5 への移行は、どんな理由で正当化されるのか？
 * 11) Vega 2 has been superseded by Vega 3, 4, then 5 upstream.  Upstream and third-party documentation exclusively refers to syntax in “Vega version 3.0 and later”, and it is difficult for new contributors to find documentation relevant to Vega 2.  The last upstream release (bugfix or security) of Vega 2.x was in January 2017.  Vega 5 was released in March 2019 and is still under active maintenance and development, with the latest 5.25.0 release in April 2023.
 * 12) Vega 2 の使いやすさ、構文および全体的な機能の問題点は、 2023 年の技術要望に従って
 * 1) Vega 5 has made improvements to the library's expression layer that harden it from a security perspective compared to Vega 2.  It is not perfect, but by introducing a parsed expression grammar it offers a more robust foundation for additional security hardening in the future if it proves necessary.
 * 2) Maintaining multiple versions of Vega concurrently is unsustainable in the long run. The wiki community is taxed in the attempt to independently support software which is not being maintained upstream. Our efforts are best spent working in cooperation with upstream and third-party developers, and to do this we need to be working from the upstream Vega 5 code base.
 * 3) グラフ類を Vega 2 から Vega 5 に移行させるには、予想される必要充分要件は何か
 * 4) Create a converter that would migrate Vega 2-based graphs to be compatible with Vega 5. @Jdlrobson started work on an initial approach in T335048#8794138.  The initial work needs to be restructured slightly to refocus it on being an aid to manual porting, instead of the automatic translator which was its original goal.   Note: We estimate this converter currently works for ~80% of graphs, with diminishing returns on additional engineering effort to cover more.  We do not plan on continuing to invest significant additional engineering resources here, but instead to simply repurpose the existing codebase as an aid to manual porting.
 * 5) Volunteers would need to update  syntax on a case-by-case basis, aided by (1) the ability to run the existing Vega 2 and new Vega 5 specification side-by-side, (2) the partial Vega2-to-5 porting tool which handles 80% of the “obvious” keyword changes and other mechanical conversions, (3) the upstream Vega2 porting guide, and (4) additional documentation or tools which might be created by the wiki community.
 * 6) Update the limited number of Scribunto templates on-wiki which generate  output in Vega 2 format to instead output Vega 5.  This requires both lua and Vega expertise, but fixes a larger number of Vega 2 uses on wiki at once.

提案
To safely restore access to the information and capabilities disabling the Graph Extension has left people without and promote the volunteer+staff collaboration needed to do so, we (the WMF) are committing to:

iFrame のサンドボックス型作業空間でグラフ拡張機能を再度、有効にするにつき、コンテンツに対する制限的なセキュリティ方針を義務化する.
 * 1) Once the Graph Extension is reenabled, it will continue to work with Vega 2 for a yet-to-be defined period of time. Note: we'll need to define this window together.
 * 2) 工程上「まだ細部は未定義で大丈夫」な時期が過ぎたら Vega 2 サポートを終了、グラフ拡張機能の実用化には、ボランティアによる Vega 5 を採用したグラフ作成が必要.
 * 3) サンドボックス空間で作業したグラフ拡張機能をできるだけ迅速にベータクラスタに提供、試用へ進むこと. 詳細は：T346292. 
 * 4) Investigate the viability of adding logging to increase our awareness of instances where people are exploiting the security vulnerabilities inherent with restoring support for Vega on our platform. See T346414.
 * 5) Publish the technical documentation needed for developers across the Movement to understand how we implemented the sandboxed CSP approach
 * 6) 上記の各作業がどの日までなら実現できるかどうか、明確な日程表を公開
 * 7) 注記：グラフ拡張機能をiframeのサンドボックス空間で実験的に再展開する作業を開始. 詳細はT222807. 
 * 8) Share regular updates about the progress we're making on the commitments named above on Phabricator and MediaWiki.
 * 9) 実際に移行作業が始まったら、ボランティアの皆さんにコードや手順のサポートを提供、Vega 2 から Vega 5 への移行がしやすいようにすること.

上記に対応するには、（ボランティアの）皆さん、頼りにしていますので次の点をよろしく.


 * 1) Spread awareness of this proposal and the updates that will come as we start implementation, assuming this proposal moves forward.
 * 2) ある程度の割合でVega 2基本のグラフから、手動でVega 5 対応に移行. 以下の「Vega 2 → Vega 5移行」を参照.   See the "questions 5 and 6 in the FAQ section". 
 * 3) 経過的な措置として、サンドボックス型の取り組みでは制限のかかるグラフで生データ採用方式を実施しようとするものを修正もしくはポート.
 * 4) Note: the need for the above will become clear once we decide on whether we will restore the pseudo-protocols that were used to fetch data live from the action API, the REST API, WDQS etc, and the precise sandbox parameters we select (domains/ports/http methods allowed). This decision will be made in T346291.

調査
安全性とセキュリティを保持して情報と能力へのアクセスを復元するにより明示された、で人々が失ってきたものの.