As my understanding, app scheme provides a same origin, safe(ground the access to the files belong to the app), and HTTP-response(support XHR) file access. Same origin is the nature part of app scheme. What we need to do add the HTTP response and security support based on the file scheme(android_asset). Android_asset has no safe issue, thanks to the asset mechanism on Android. After we add the HTTP response support, there should be no more limitation.
From: Zhu, Yongsheng Sent: Friday, November 29, 2013 9:53 AM To: Wang, Xingnan; crosswalk-dev@lists.crosswalk-project.org Subject: RE: [Crosswalk-dev] Intent to Implement: [Android] app URI scheme support on Android Thanks, Xingnan. Seems we can follow current way to support app://. Questions: any limitations on Android port? Yongsheng From: Crosswalk-dev [mailto:crosswalk-dev-boun...@lists.crosswalk-project.org] On Behalf Of Wang, Xingnan Sent: Thursday, November 28, 2013 1:54 PM To: crosswalk-dev@lists.crosswalk-project.org<mailto:crosswalk-dev@lists.crosswalk-project.org> Subject: [Crosswalk-dev] Intent to Implement: [Android] app URI scheme support on Android Summary: App URI scheme, as part of sysapps API, is used to address resources inside a packaged application. http://app-uri.sysapps.org/ In crosswalk, app URI scheme is supported in all ports except Android, as on Android crosswalk has a different path to access file from local(app's resources on Android locates in assets folder, and we need to access them from java side). So to let web applications access resources via app scheme and keep aligned with other ports, we need to add the app URI scheme support on Android. Affected component: N/A Related feature: XWALK-174 < https://crosswalk-project.org/jira/browse/XWALK-174> Target Release: Crosswalk 3 Implementation details: These are several steps to implement the app scheme: 1 Create a new app scheme protocol handler and register it into URL protocol handler factory. Runtime/browser/android/net/android/_protocol_handler.cc New Class: AppProtocolHander New Function: CreateAppProtocolHandler Runtime/browser/runtime_url_request_context_getter.cc Register AppProtocolHander 2 Bridge the app access into assets on Android. Runtime/android/java/src/org/xwalk/core/AndroidProtocolHandler.java Add app scheme verification, and call openAsset() for it. 3 Add the HTTP responses in the app scheme protocol handler. Runtime/browser/android/net/android_stream_reader_url_request_job.cc Support HTTP responses of 400, 403, 404, 200, 501 etc.
_______________________________________________ Crosswalk-dev mailing list Crosswalk-dev@lists.crosswalk-project.org https://lists.crosswalk-project.org/mailman/listinfo/crosswalk-dev
