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Nintendo Switch does not have a normal Internet Browser for user usage. However, there is multiple browser applets. It is the [https://web.archive.org/web/20170304075230/https://gl.access-company.com/news_event/archives/2017/170303/ NetFront NX] browser, which is based on Webkit.
Nintendo Switch does not have a normal Internet Browser for user usage. However, there is multiple browser applets. It is the [https://web.archive.org/web/20170304075230/https://gl.access-company.com/news_event/archives/2017/170303/ NetFront NX] browser, which is based on Webkit.
When linking the Nintendo Account with Facebook, the Facebook Auth website will open, offering a search box that can be used to browse the Internet ("LoginApplet"). Alternatively, it can be accessed with [https://gbatemp.net/threads/web-browser-kind-of-on-the-switch.463094/ custom DNS settings] which simulate a Wi-Fi login page ("WifiWebAuthApplet" for captive-portal).
When linking the Nintendo Account with Facebook, the Facebook Auth website will open, offering a search box that can be used to browse the Internet ("LoginApplet"). Alternatively, it can be accessed with custom DNS settings which simulate a Wi-Fi login page ([[#WifiWebAuthApplet|WifiWebAuthApplet]] for captive-portal).
== Known User Agent Strings ==
== Known User Agent Strings ==
| [[6.1.0]]
| [[6.1.0]]
| Mozilla/5.0 (Nintendo Switch; <appletname>) AppleWebKit/601.6 (KHTML, like Gecko) NF/4.0.0.10.14 NintendoBrowser/5.1.0.17806
| Mozilla/5.0 (Nintendo Switch; <appletname>) AppleWebKit/601.6 (KHTML, like Gecko) NF/4.0.0.10.14 NintendoBrowser/5.1.0.17806
|-
| [[10.0.0]]
| Mozilla/5.0 (Nintendo Switch; <appletname>) AppleWebKit/606.4 (KHTML, like Gecko) NF/6.0.1.15.4 NintendoBrowser/5.1.0.20389
|}
|}
| Just displays an error-code.
| Just displays an error-code.
| Yes
| Yes
| 0100000000001010
|
|-
| NsoApplet
| Nintendo Switch Online menu
|
|
| 0100000000001010
| 0100000000001010
|
|
Prior to version [[3.0.0]], this applet was launched when attempting a system update from recovery mode if needed. This was changed to display a "This feature is not available." popup instead.
Prior to version [[3.0.0]], this applet was launched when attempting a system update from recovery mode if needed. This was changed to display a "This feature is not available." popup instead.
The conntest URL from [[#WebWifiPageArg]] is used to poll whether the connection is usable, with the SDK [[libcurl]].
==Whitelisted Applets==
==Whitelisted Applets==
You can invite friends to the room via
You can invite friends to the room via
the Nintendo Switch Online Lounge app.
the Nintendo Switch Online Lounge app.
=== NsoApplet ===
[11.0.0+] This applet handles the new Nintendo Switch Online menu, which is launched from qlaunch.
The initial page loaded by this applet is: <nowiki>"https://%.nso.nintendo.net/</nowiki>{string from [[#TLVs|TLV]] 0x2}"
== ShopN ==
== ShopN ==
== Heap ==
== Heap ==
The size used for [[SVC|svcSetHeapSize]] by the web-applets is 0x15600000. Under ShopN, the largest size that can be passed to this without an error being returned, is 0x1B400000.
The size used for [[SVC|svcSetHeapSize]] by the web-applets is 0x15600000. Under ShopN, the largest size that can be passed to this without an error being returned, is 0x1B400000.
The size used by title 010000000000100A (on 10.0.0 at least) is 0x14200000.
The heap for the main-codebin (<code>malloc</code>/<code>operator new</code>) uses nn::lmem::*ExpHeap. [8.0.0+] <code>malloc</code>/<code>operator new</code> now checks the return-addr (addr located in a relevant NRO), with wkc_malloc_crashonfailure being called for the allocation if the check passes, otherwise a normal allocation is done (the code which runs for this will Abort if allocation fails).
<code>malloc</code> passes the input size directly to the called func. <code>operator new</code> when handling normal non-wkc allocations passes the following to the called func: <code>sxtw x1, {inw0}</code> (for wkc allocations the size is passed directly). [12.1.0+] The size is now passed directly (64bit) without using sxtw.
[11.0.0+] There's now optional code for using [[SVC|svcMapPhysicalMemoryUnsafe]] etc, however it's unknown what sets the flag for this. An Abort string used this is: "{path}/TransferredMemoryManager.cpp"
== Applet Launching ==
== Applet Launching ==
The web-applets are launched using a storage containing the input arg data, on exit the output storage contains the "*ReturnValue" reply data struct. The output struct is specific to each applet.
The web-applets are launched using a storage containing the input arg data, on exit the output storage contains the "*ReturnValue" reply data.
Input/output storage size for TLV data is 0x2000-bytes.
=== Library Applet Versions ===
=== Library Applet Versions ===
|-
|-
| [6.0.0+] || 0x60000
| [6.0.0+] || 0x60000
|-
| [8.0.0+] || 0x80000
|}
|}
| 2
| 2
| Login
| Login
|-
| 3
| Offline
|-
|-
| 4
| 4
| 7
| 7
| Lobby
| Lobby
|-
| 8
| [[#NsoApplet|Lhub]]
|}
|}
=== WebSession ===
=== WebSession ===
With [5.0.0+] sdk-nso added <code>nn::web::Session::</code>, however with [6.0.0+] this was removed. WebApplet (Web shim title) doesn't seem to implement this, unknown if other titles do.
With [5.0.0+] sdk-nso added <code>nn::web::Session::</code>. With [6.0.0+] this was removed, however it was reintroduced with [7.0.0+] as <code>nn::web::*WebSession</code> (for ShimKind Offline and Web).
This is for sending/receiving [[#SessionMessage]]s via applet Interactive storage.
This is for sending/receiving [[#SessionMessage]]s via applet Interactive storage.
During state init, max_messages is set to 0xA and max_size is set to 0x5000, with message_count=0 and cur_size=0.
During state init, max_messages is set to 0xA ([7.0.0+] 0x10), with message_count=0 and cur_size=0. [5.0.0-5.1.0] max_size is set to 0x5000. [7.0.0+] Two queues are used for message_count/cur_size: first one is for BrowserEngineContent (max_size 0x8000 is used), the second one is for non-BrowserEngineContent (max_size 0x1000 is used).
When sending messages, there has to be an available message slot available (<code>max_messages!=message_count</code>), and there has to be enough space avilable (<code>msghdr_contentsize+0x10 + cur_size <= max_size</code>). After pushing the storage, message_count is incremented and cur_size is increased by <code>msghdr_contentsize+0x10</code>.
When sending messages, there has to be an available message slot available (<code>max_messages!=message_count</code>), and there has to be enough space available (<code>msghdr_contentsize+0x10 + cur_size <= max_size</code>). After pushing the storage, message_count is incremented and cur_size is increased by <code>msghdr_contentsize+0x10</code>.
When receiving messages, it will repeatedly pop Interactive output storage until no more are available. If the ID is not 0x1000/0x0, the message is ignored. Otherwise:
When receiving messages, it will repeatedly pop Interactive output storage until no more are available. Non-Ack messages are Acked.
* Ack: Verifies that message_count is not already 0, then decrements it. Then cur_size is decreased by the u32 loaded from msgcontent+0.
* Ack: Verifies that message_count is not already 0, then decrements it. Then cur_size is decreased by the u32 loaded from msgcontent+0.
* 0x0: Does some validation. Copies the first 8-bytes from the header to the user [[#SessionMessage]]. Reads the message content into the user [[#SessionMessage]], when contentsize is non-zero. Then sends an Ack with the storage size.
* 0x0: Does some validation. Reads the message content into the user buffer, when contentsize is non-zero. The original contentsize is written to an user output param. The last byte in the user buffer (contentsize clamped to the user max-buf-size, -1) is set to 0 for NUL-termination.
Next info was tested in 9.0.0
In the js side (which is only available when enabled via the JsExtensionEnabled TLV), there is a method called <code>window.nx.sendMessage(arg)</code> that sends data to the native side, this method returns a boolean indicating if sending was successful and accepts a string as an argument. The string is encoded like a C null terminated string in the message content. For receive messages from native part, there is a dom event called <code>message</code> which is dispatched when a message arrives. The event can be listened using <code>window.nx.addEventListener("message", callback)</code> being callback a function which first parameter is like a dom event arg and contains a member called <code>data</code> which contains the string decoded from the arrived message.
If messages aren't acked by the native part, js side will not longer receive messages. Ack to web applet '''must''' have 4 bytes after the message content or the applet will Abort.
==== SessionMessage ====
==== SessionMessage ====
| Size from header
| Size from header
| Message content
| Message content
|-
| After message content
| 0x4 if message is ack, 0x0 otherwise
| Padding
|}
|}
| 0x0
| 0x0
| 0x4
| 0x4
| Message ID
| Message Kind ([[#WebSessionSendMessageKind]] / [[#WebSessionReceiveMessageKind]])
|-
|-
| 0x4
| 0x4
| 0x4
| 0x4
| Content size following the header.
| Data size following the header.
|-
|-
| 0x8
| 0x8
|}
|}
==== IDs ====
==== WebSessionSendMessageKind ====
This is "nn::web::detail::WebSessionSendMessageKind".
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| Arbitrary
| Arbitrary
| Arbitrary content.
| BrowserEngine Content, NUL-terminated string. Used to communicate with the applet via JsExtensions used by the Js being run by the applet on the current page.
|-
| 0x100
| 0x0
| SystemMessage Appear. Requests the applet to Appear, this is only needed with [[#WebSessionBootMode]] AllForegroundInitiallyHidden.
|-
|-
| 0x1000
| 0x1000
| 0x8
| 0xC
| Ack. Content: first u32 is the entire storage size of the message being acked, while the second u32 is 0.
| Ack. Content: first u32 is the entire storage size of the message being acked, the rest is not used.
|}
==== WebSessionReceiveMessageKind ====
This is "nn::web::detail::WebSessionReceiveMessageKind".
{| class="wikitable" border="1"
|-
! ID
! Content size
! Description
|-
| 0x0
| Arbitrary
| BrowserEngine Content, see [[#WebSessionSendMessageKind]].
|-
| 0x1000
| 0xC
| Ack BrowserEngine
|-
| 0x1001
| 0xC
| Ack SystemMessage
|}
|}
|}
|}
This is the 0x1010-byte output storage used by all non-WebWifi applets - except for Share which returns a TLV storage on [3.0.0+].
This is the 0x1010-byte output storage used by all non-WebWifi applets - except for Share which returns a TLV storage on [3.0.0+], and Web on [8.0.0+].
=== WebArgHeader ===
=== WebArgHeader ===
| float
| float
| OverrideMediaAudioVolume
| OverrideMediaAudioVolume
|-
| [7.0.0+]
|
| 0x41
| 0x4
| u32 enum [[#WebSessionBootMode]]
| BootMode
|-
| [7.0.0+]
|
| 0x42
| 0x1
| u8 bool
| Enables using [[#WebSession]] when set.
|-
| [8.0.0+]
| Offline
| 0x43
| 0x1
| u8 bool
| MediaPlayerUiEnabled
|-
| [11.0.0+]
|
| 0x44
| 0x1
| bool
| TransferMemoryEnabled
|}
|}
[6.0.0+] <code>AddAlbumEntryAndMediaData</code> was added:
[6.0.0+] <code>AddAlbumEntryAndMediaData</code> was added:
* Looks for AlbumEntry{N} TLVs, when a TLV is not found it is written, then the associated AdditionalMediaData{N} TLV is written the same way as AdditionalMediaData0. If all AlbumEntry{N} TLVs already exist, this returns without writing anything.
* Looks for AlbumEntry{N} TLVs, when a TLV is not found it is written, then the associated AdditionalMediaData{N} TLV is written the same way as AdditionalMediaData0. If all AlbumEntry{N} TLVs already exist, this returns without writing anything.
TransferMemoryEnabled: sdknso only exposes this for the Web applet. The sdknso func uses <code>nn::os::QueryMemoryInfo</code> at the start of the func, however the output is unused. The applet doesn't seem to parse this TLV.
==== Output TLVs ====
==== Output TLVs ====
|-
|-
! System Version
! System Version
! Applets
! Type
! Type
! Size
! Size
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share, Web
| 0x1
| 0x1
| 0x4
| 0x4
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share, Web
| 0x2
| 0x2
|
|
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share, Web
| 0x3
| 0x3
| 0x8
| 0x8
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share
| 0x4
| 0x4
| 0x4
| 0x4
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share
| 0x5
| 0x5
|
|
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share
| 0x6
| 0x6
| 0x8
| 0x8
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share
| 0x7
| 0x7
|
|
|-
|-
| [3.0.0+]
| [3.0.0+]
| Share
| 0x8
| 0x8
| 0x8
| 0x8
| u64
| u64
| PostIdSize
| PostIdSize
|-
| [8.0.0+]
| Web
| 0x9
| 0x1
| u8 bool
| MediaPlayerAutoClosedByCompletion
|}
|}
These are used for Share-applet. Official user-processes doesn't check the TLV size for any of these.
These are used for Share-applet on [3.0.0+], and with Web on [8.0.0+]. Official user-processes doesn't check the TLV size for any of these.
==== DocumentKind ====
==== DocumentKind ====
|-
|-
|}
|}
==== WebSessionBootMode ====
This is "nn::web::WebSessionBootMode".
{| class="wikitable" border="1"
|-
! Value
! Name
! Description
|-
| 0
|
| Normal/default (AllForeground)
|-
| 1
|
| AllForegroundInitiallyHidden
|}
This controls which [[Applet_Manager_services|LibraryAppletMode]] the applet will be launched with, by the user-process. The TLV for this seems to be ignored by the applet.
==== LastUrl ====
==== LastUrl ====