webui: show the internal device channels on request

[jens-maus]

Original OpenCCU rootfs patch: 0133
Original filename: 0133-WebUI-Fix-InternalIDExposure.patch
Original patch: ``''https://github.com/OpenCCU/OpenCCU/blob/f188d0eeb0ab7af4c2ef4c33dd31fee744cb7b0e/buildroot-external/package/openccu-base/rootfs-patches/0133-WebUI-Fix-InternalIDExposure.patch''''
Original changes: OpenCCU/OpenCCU@025e0a9d1 (favorite editor, OpenCCU/OpenCCU#1475), OpenCCU/OpenCCU@c06cd225f (functions and rooms, OpenCCU/OpenCCU#1477), OpenCCU/OpenCCU@8d8edd359, OpenCCU/OpenCCU@4555170d5 (show/hide button) and OpenCCU/OpenCCU@c84c7e413 (OpenCCU/OpenCCU#1751)

Internal device channels, such as the MAINTENANCE channel (:0) of HmIP devices, can be used in favorites, programs and diagrams, but most WebUI views do not list them. This applies the patch 1:1:

• src/webui/rega/www/pages/tabs/control/devices.htm: "Status und Bedienung > Geräte" gets a footer button "Systeminterne Kanäle einblenden/ausblenden". It calls the existing ShowInternalDeviceChannels action of esp/system.htm/system.fn, which toggles the session variable sessionSIDC. The labels (footerBtnShowInternalDeviceChannels/footerBtnHideInternalDeviceChannels) and the CLASS04905 style already exist here.
• src/webui/rega/www/esp/functions.fn (showHideHmIPChannel(), used only by hdevichannels.htm): while sessionSIDC is 1, the MAINTENANCE channels are shown. Otherwise they stay hidden except on the central units (HmIP-CCU3, HmIP-HAP*, RPI-RF-MOD). This replaces the device-specific rules that always showed the channel of HmIPW-, HmIP-DRSI, HmIP-DRG-DALI, HmIP-BSL (firmware 2+), HmIP-WGD*, HmIP-UDI-* and HmIP-DRBLI4 devices with an IDENTIFY_TARGET_LEVEL/ERROR_POWER_SHORT_CIRCUIT_BUS_1 control; these can now be shown with the button (HmIP-DRSIx - Aktoren ignorieren den "Systeminterne Kanäle einblenden / ausblenden - Button" OpenCCU#1751).
• src/webui/rega/www/pages/tabs/control/hdevichannels.htm: while sessionSIDC is 1, the channel list also contains EnumEnabledInternalIDs(). Channels are no longer hidden because chn.ReadyConfig() is false.
• src/webui/rega/www/pages/tabs/control/hfuncchannels.htm, hroomchannels.htm, statusviews/alarmMessages.htm and user/newFav.htm (both lists): they iterate over EnumIDs() plus EnumEnabledInternalIDs() instead of EnumEnabledIDs()/EnumIDs(), so enabled internal channels assigned to functions or rooms, their alarms and the favorite editor include them.

The line endings (CRLF for the .htm files, LF for functions.fn) and the encodings (ISO-8859-1, UTF-8) are preserved. The root www/ copies are unused legacy files and are left unchanged.

Other OpenCCU rootfs patches also modify these files (0039, 0138, 0154 and 0155). They still apply with zero fuzz.

Validation

• The patch applies to this repository's sources with zero fuzz.
• OpenCCU scripts/base-patch-migration.py validate with the canonical Buildroot 2026.08 git4 archive of this branch (24ea23f6, sha256 2faf60e10842ad622ca866b100bb977cd0942ba52aeadd014533d55f07f09261) and --skip-patch 0133, on OpenCCU master f188d0eeb (current pin a55e7d95): PASS (the other 54 rootfs patches apply with zero fuzz).
• compare against a validation of the current pin a55e7d95 with all 55 patches: IDENTICAL (4666 entries).

OpenCCU cleanup PR (removing patch 0133 and updating the pin): OpenCCU/OpenCCU#4439

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Generated by Claude Code

Summary by CodeRabbit

• New Features
  • Added the option to show or hide internal device channels.
  • Enabled internal channels to appear in device, room, function, status, and favorites views when shown.
• Bug Fixes
  • Updated maintenance-channel visibility across supported devices.

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Generated by Claude Code

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📝 Walkthrough

The devices page adds a control for internal-device-channel visibility. When internal channels are enabled, channel and alarm views include enabled internal IDs alongside their existing IDs.

Changes: Internal channel visibility

Layer / File(s)	Summary
Toggle and maintenance-channel filtering src/webui/rega/www/pages/tabs/control/devices.htm, src/webui/rega/www/esp/functions.fn	The devices page sends the toggle action and reloads when the request completes. Maintenance-channel filtering now depends on sessionSIDC and excludes the listed CCU3, HAP, and RPI-RF-MOD types from hiding.
Channel and alarm view lists src/webui/rega/www/pages/tabs/control/hdevichannels.htm, src/webui/rega/www/pages/tabs/control/hfuncchannels.htm, src/webui/rega/www/pages/tabs/control/hroomchannels.htm, src/webui/rega/www/pages/tabs/statusviews/alarmMessages.htm, src/webui/rega/www/pages/tabs/user/newFav.htm	The views combine temporary-view IDs with enabled internal IDs. The device-channel row condition no longer requires chn.ReadyConfig().

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  actor User
  participant DevicesPage as devices.htm
  participant SystemEndpoint as /esp/system.htm
  User->>DevicesPage: Select internal-channel toggle
  DevicesPage->>SystemEndpoint: Send ShowInternalDeviceChannels action
  SystemEndpoint-->>DevicesPage: Complete request
  DevicesPage->>DevicesPage: Reload page

Loading

Merge Risk: 🔵 Low · up to 24ea2

The internal-channel toggle may not hide internal channels in the function and room views. This is a bounded UI inconsistency and does not block merge.

Pre-merge checks: 5

Passed checks: 5 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: allowing users to show internal device channels on request.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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[jens-maus]

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Actionable comments posted: 1

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• 🪄 Fix comments: Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
Review comments at @src/webui/rega/www/pages/tabs/control/hfuncchannels.htm:
- Line 124: Gate calls to EnumEnabledInternalIDs() on sessionSIDC in both views.
In src/webui/rega/www/pages/tabs/control/hfuncchannels.htm, line 124, and
src/webui/rega/www/pages/tabs/control/hroomchannels.htm, line 129, initialize
sEnumUserInternalIDs as empty and populate it only when sessionSIDC exists and
equals "1".

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: defaults
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• Run ID: bee82889-2a0d-42e6-875d-a9cb0bc98a88

📥 Commits

Reviewing files that changed from the base of the PR and between a55e7d9 and 24ea23f.

📒 Files selected for processing: 7

• src/webui/rega/www/esp/functions.fn
• src/webui/rega/www/pages/tabs/control/devices.htm
• src/webui/rega/www/pages/tabs/control/hdevichannels.htm
• src/webui/rega/www/pages/tabs/control/hfuncchannels.htm
• src/webui/rega/www/pages/tabs/control/hroomchannels.htm
• src/webui/rega/www/pages/tabs/statusviews/alarmMessages.htm
• src/webui/rega/www/pages/tabs/user/newFav.htm

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