Add a reusable CSV-export building block to the core so any Grid.js list
page can gain a filter/sort-aware download with two clicks of glue.
Core primitive:
- core/Service/Export/CsvExportService: flavor-aware writer (plain CSV
or Excel-compatible UTF-8+BOM+semicolon), with OWASP-aligned formula-
injection escape (=, @, +, -, TAB, CR) applied to both rows *and*
headers. Value objects for columns (ExportColumn) carry an extractor
closure and an allowSignedNumeric flag for phone-number-shaped cells.
- core/Support/helpers/export.php: thin HTTP layer (exportSendCsv,
exportCapLimit, exportResolveFlavor, exportRequireGetRequest) reusing
the requestInput() contract for GR-CORE-003 consistency. Filename is
sanitized and length-clamped; callers must still enforce auth.
- templates/partials/app-list-export-dropdown.phtml: zero-config
<details class="dropdown"> with CSV + Excel triggers.
- web/js/core/app-list-export.js: initListExport({ gridConfig, exportUrl })
mirrors the current grid filters + sort onto the export URL and
navigates, preserving session cookies for download.
First consumer — Helpdesk domains:
- DomainListService extracts the shared filter/enrich/sort logic from
domains-data so the grid endpoint and the new domains/export endpoint
cannot drift.
- domains/export endpoint delegates to DomainListService, declares
ExportColumns (with translated level labels), and exits via
exportSendCsv.
- domains-data now ~20 lines, delegating to DomainListService.
Tests:
- CsvExportServiceTest (10 cases): both flavors, BOM/no-BOM, formula
escapes incl. TAB/CR, header escape, signed-numeric allowlist,
quoting, multiline, empty columns, generator-compatible iterable.
- ExportHelpersTest (5 cases): exportCapLimit bounds.
- DomainListServiceTest (8 cases): filter, search, "all" sentinel,
sort, paging, enrichment, BC failure, tenant-scoped security filter.
Gates: PHPUnit green, PHPStan clean on touched files, module:sync ok.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
