feat: add file cache mapping diagnostic
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zhaoyilun
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# File Cache Mapping Diagnostic
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Date: 2026-07-10
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## Goal
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Run the R3b local-only diagnostic to determine whether copied MsgLib received-file metadata can be mapped to the available ignored cache/archive listing without printing file paths, raw rows, message bodies, or attachment contents.
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## Diagnostic command shape
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The diagnostic script is:
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```powershell
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powershell -NoProfile -ExecutionPolicy Bypass -File scripts\verify-file-cache-mapping.ps1 \
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-ArchiveListPath <ignored-archive-list>
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```
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The script can also accept `ISPHERE_MSGLIB_SQLITE_DLL` and `ISPHERE_MSGLIB_DB` from the environment. The committed note intentionally omits local DB, DLL, and archive-list path values.
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## Sanitized result
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Safe summary from the available copied DB plus ignored archive-list metadata:
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```json
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{
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"ok": true,
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"verification": "file_cache_mapping",
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"db_checked": true,
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"db_table_available": true,
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"db_record_count": 166,
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"db_filename_present_count": 166,
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"db_size_present_count": 166,
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"db_source_id_present_count": 166,
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"db_receive_msg_guid_present_count": 166,
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"cache_checked": true,
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"cache_candidate_count": 11,
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"hash_dir_length_counts": {"32": 11},
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"filename_only_match_count": 0,
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"filename_size_match_count": 0,
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"unique_filename_size_match_count": 0,
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"source_id_hash_dir_match_count": 0,
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"mapping_validated": false,
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"recommended_next_node": "additional evidence request",
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"raw_paths_printed": false,
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"file_contents_read": false,
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"file_paths_returned": false,
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"raw_rows_returned": false,
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"message_body_values_printed": false
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}
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```
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Extension counts are allowed as coarse metadata. The diagnostic normalizes abnormal extensions to `.other` so file-name fragments are not printed.
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## Decision
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Do not implement R4 receive-file download mode from the current evidence.
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Reason:
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- MsgLib received-file metadata exists and is internally complete enough for metadata analysis: filename, size, source id, and receive message id are present for 166 inspected rows.
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- The available cache/archive listing has 11 hash-shape cache candidates.
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- The diagnostic found 0 filename-only matches, 0 filename+size matches, and 0 source-id-to-hash-dir matches.
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- Therefore no unique or repeatable cache-file resolver can be claimed.
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## Next route
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File download remains blocked until one of these is available:
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1. A better operator-local cache root or fresh archive-list that actually contains the same received files as `TD_ReceiveFileRecord`.
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2. A known recent received-file sample where the operator can confirm the message/file metadata and resulting local cache object, with committed output still limited to counts and booleans.
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3. A UI/client download connector path that can trigger download without relying on cache guessing.
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The broader roadmap should skip R4 for now and continue with R5 send-message connector discovery.
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@@ -20,7 +20,7 @@ Schema notes: `docs/source-discovery/2026-07-09-n12-pre-zyl-schema-notes.md`
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| `isphere_receive_messages` | decrypted `PacketReader.ProcessPacket` XMPP `<message>` stanzas via `internal/isphere.EncryptedPacketLogSource`; configured by `ISPHERE_PACKET_LOG_FILE` or `ISPHERE_PACKET_LOG_DIR` | copied `MsgLib.db` message tables through x86 read-only sidecar `list_messages` selected explicitly by `source_preference="msglib_readonly"`; decrypted `Smark.SendReceive` transport stanzas; decrypted `SaveToDB` `Chat_OnMessageArrived` traces | `docs/source-discovery/2026-07-09-n12-pre-zyl-schema-notes.md#field-mapping-evidence`; `docs/source-discovery/2026-07-10-dotnet-wrapper-static-analysis.md`; `docs/source-discovery/2026-07-10-db-backed-receive-source-design.md`; `docs/source-discovery/2026-07-10-receive-message-reconciliation-precheck.md` | C20 supports and validates the current safe receive-message contract args; C32 wires optional MsgLib display metadata into receive-message `sender_name` and `conversation.display_name`; C33 proves this path through a real copied-DB MCP smoke; C35 maps MsgLib message tables; C36 adds metadata-only `message_sources`; C37 defines bounded `list_messages` design; C38 implements sidecar/Go-wrapper `list_messages` with sanitized copied-DB verification; C39 adds a Go adapter from `ListMessages` to the receive-message domain model; C40 adds tool-level explicit `msglib_readonly` source selection; C41 wires env-configured MsgLib receive source and optional copied-DB smoke; R1 precheck keeps `auto` PacketReader/log-backed until a future reconciliation helper is implemented | future receive reconciliation helper after R2/R3 |
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| `isphere_search_contacts` | bare sender/receiver JIDs extracted from normalized log-backed messages loaded from configured PacketReader file or directory source | validated copied `MsgLib.db` tables: `TD_Roster`, `TD_CustomEffigy`, `tblRecent`, `tblChatLevel`, `tblPersonMsg`; decrypted roster/contact stanzas from `Smark.SendReceive`; UIA helper source if display names are still missing | `docs/source-discovery/2026-07-10-msglib-readonly-schema-extraction.md`; `internal/isphere/contacts_test.go`; `internal/tools/isphere_contacts_test.go` | C34 documents optional MsgLib contact display enrichment; R2 adds deterministic exact-match-first ranking, case-insensitive de-duplication across log/MsgLib candidates, and preserves `source`/`raw_ref` | core contact search complete; optional richer fields later |
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| `isphere_search_groups` | decrypted `PacketReader.ProcessPacket` `type="groupchat"` stanzas and conference/MUC JIDs loaded from configured PacketReader file or directory source | validated copied `MsgLib.db` tables: `tblMsgGroupPersonMsg`, `TD_WorkGroupAuth`, `tblRecent`; UIA helper source if group display names are still missing | `docs/source-discovery/2026-07-10-msglib-readonly-schema-extraction.md`; `internal/isphere/groups_test.go`; `internal/tools/isphere_groups_test.go`; C9 ignored-log scan: PacketReader 86 groupchat/86 conference hits; Smark 24 groupchat/658 conference/631 muc hits | C34 documents optional MsgLib group display enrichment; R2 adds deterministic exact-match-first ranking, case-insensitive de-duplication across log/MsgLib candidates, and preserves `source`/`raw_ref` | core group search complete; optional member/owner hierarchy later |
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| `isphere_receive_files` | decrypted `PacketReader.ProcessPacket` file-transfer message stanzas via `internal/isphere.ListFilesFromMessages` and `isphere_receive_files` list mode; configured PacketReader file or directory source; `zyl\importal\<hash>` cache entries remain unlinked | MsgLib `TD_ReceiveFileRecord` safe metadata through explicit copied-DB path; decrypted `Smark.SendReceive` and `SaveToDB` traces for file-reference reconciliation; future UIA/client connector for download | `docs/source-discovery/2026-07-09-n12-pre-zyl-schema-notes.md#c12-file-transfer-evidence-precheck`; `docs/source-discovery/2026-07-10-file-download-mapping-precheck.md` | C22 verifies safe file-list contract args; R3 confirms list metadata is available but no validated message/file-record-to-cache-file mapping exists; R4 remains blocked | R3b file cache mapping diagnostic |
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| `isphere_receive_files` | decrypted `PacketReader.ProcessPacket` file-transfer message stanzas via `internal/isphere.ListFilesFromMessages` and `isphere_receive_files` list mode; configured PacketReader file or directory source; `zyl\importal\<hash>` cache entries remain unlinked | MsgLib `TD_ReceiveFileRecord` safe metadata through explicit copied-DB path; decrypted `Smark.SendReceive` and `SaveToDB` traces for file-reference reconciliation; future UIA/client connector for download | `docs/source-discovery/2026-07-09-n12-pre-zyl-schema-notes.md#c12-file-transfer-evidence-precheck`; `docs/source-discovery/2026-07-10-file-download-mapping-precheck.md`; `docs/source-discovery/2026-07-10-file-cache-mapping-diagnostic.md` | C22 verifies safe file-list contract args; R3 confirms list metadata is available; R3b diagnostic finds 0 current cache/archive matches, so R4 remains blocked | blocked pending better cache evidence or UI/client download connector |
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| `isphere_send_message` | none validated yet | existing bridge/API/local service preferred; UIA write connector only after internal-sandbox action evidence; network/protocol connector only after protocol discovery | `docs/source-discovery/2026-07-10-send-message-source-precheck.md` | C15 blocked: contract exists, but no committed bridge/API/local service, helper write op, UIA action chain, or protocol connector is validated | R5 send-message connector discovery |
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| `isphere_send_file` | none validated yet | depends on send-message connector plus outbound file/upload evidence | `docs/source-discovery/2026-07-10-send-message-source-precheck.md` | blocked behind `isphere_send_message` connector selection and file upload/source policy | R7 send-file connector discovery |
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