Safe HTML Viewer - Releases

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Nextcloud 33

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0

Nextcloud 32

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
MIIECzCCAvMCAhN2MA0GCSqGSIb3DQEBCwUAMHsxCzAJBgNVBAYTAkRFMRswGQYD
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0

Nextcloud 31

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0

Nextcloud 30

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0

Nextcloud 29

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
MIIECzCCAvMCAhN2MA0GCSqGSIb3DQEBCwUAMHsxCzAJBgNVBAYTAkRFMRswGQYD
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0

Nextcloud 28

Safe HTML Viewer 0.1.2
Release Details
UpdatedJuly 3, 2026, 3:37 a.m.
Changelog

Fixed

  • App Store description rendered raw HTML tags as text: the App Store treats info.xml description as Markdown, so the description is now written in Markdown instead of HTML.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.2
Safe HTML Viewer 0.1.1
Release Details
UpdatedJuly 3, 2026, 3:27 a.m.
Changelog

Changed

  • Expanded the App Store description (features list, sandbox behaviour, limitations).
  • Unified author/copyright attribution to "Hiroshi Ishizaka (ishizakahiroshi)" across info.xml, composer.json, package.json and LICENSE.
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
MIIECzCCAvMCAhN2MA0GCSqGSIb3DQEBCwUAMHsxCzAJBgNVBAYTAkRFMRswGQYD
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.1
Safe HTML Viewer 0.1.0
Release Details
UpdatedJuly 3, 2026, 3:01 a.m.
Changelog

Added

  • Initial public release of safe_html_viewer.
  • File action registration for .html / text/html files.
  • /apps/safe_html_viewer/raw/{fileId} endpoint returning HTML under strict CSP sandbox (sandbox allow-scripts allow-popups, no allow-same-origin).
  • ACL enforcement via user folder view (only accessible files are returned).
  • RedactionService with best-effort display-time redaction for:
  • Email addresses
  • Phone-like strings
  • IPv4 addresses
  • Private/localhost URLs
  • Credential query patterns (password=, token=, api_key=, ...)
  • Long opaque token-like strings
  • Redaction only affects the served preview; original file content is untouched.
  • Basic PHPUnit coverage for redaction rules.
  • Documentation: README, SECURITY, CHANGELOG, AGENTS/CLAUDE guidance files.

Security

  • Sandbox is intentionally restrictive.
  • Redaction is documented as best-effort (see README and SECURITY.md).
Licenses AGPLv3+
Certificate-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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Signature digestsha512
Dependencies
Required Nextcloud versions >=28.0.0,<34.0.0
Minimum Integer bits32
Download Safe HTML Viewer 0.1.0