# B-Route File Send Static Map

Date: 2026-07-12

## Scope

This report uses offline IL only. It does not upload files, send file messages, replay traffic, inject into a process, or mutate the original iSphere binaries.

Machine-readable evidence: `runs/offline-broute-reverse/file-send-map.json`

## Sources

| Source | Role | Exists | Lines | Size bytes |
| --- | --- | --- | ---: | ---: |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il` | main client IL; UC_FileSend, OffLineFileSend, MessageScheduling | yes | 1360035 | 74148460 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il` | file transfer service implementation | yes | 3351 | 207786 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il` | file transfer contracts, parameters, and result DTOs | yes | 1641 | 93585 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Interface.dll.il` | transport/event interface contracts | yes | 4429 | 227335 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il` | Chat.sendFileMessage and XMPP message construction | yes | 87425 | 5019807 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\TcpFileTransfer.dll.il` | native TCP transfer candidate; IL may be unavailable | yes | 5 | 241 |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Model.dll.il` | chat record models if extracted | no | 0 |  |

## Target classification

| Target | Phase | Intent | Classification | Matches |
| --- | --- | --- | --- | ---: |
| `IMPP.Client.OffLineFileSend.sendFile` | `upload` | offline file upload orchestration from UI file sender | `confirmed_signature` | 3 |
| `IMPP.Client.OffLineFileSend.trans_UploadCompleted` | `upload_to_message_boundary` | upload-completed handler that converts FileUploadResult.FileID into a chat file message | `confirmed_signature` | 3 |
| `IMPP.Service.BLL.FileTransfer.FileUpload` | `upload` | synchronous service upload entry returning FileUploadResult | `confirmed_signature` | 17 |
| `IMPP.Service.BLL.FileTransfer.AsynFileUpload` | `upload` | asynchronous upload queue entry | `confirmed_signature` | 3 |
| `FileUploadPara` | `upload_parameters` | host/port/domain/local file path/cache/timeout/upload flags | `confirmed_signature` | 66 |
| `FileUploadResult.FileID` | `upload_result` | server-side file id and URL returned by upload | `confirmed_signature` | 75 |
| `MessageScheduling.SendFileMessage` | `message` | scheduled/file-message finalization path using RosterContactsArgs and FileTransferArgs | `confirmed_signature` | 3 |
| `Chat.sendFileMessage` | `message` | smack API that sends the XMPP file message after upload metadata is known | `confirmed_signature` | 8 |
| `Required values: path id size target jid` | `requirements` | static evidence for local file path, remote folder/file id, file size/name, target JID/chat, and server auth | `confirmed_signature` | 550 |

## Upload step vs chat-message step

| Step | Static evidence | Business meaning |
| --- | --- | --- |
| 1. Upload | `IMPP.Client.OffLineFileSend.sendFile` constructs `FileUploadPara` and calls `IFileTransfer.FileUpload`; `IMPP.Service.BLL.FileTransfer.FileUpload` delegates to `SyncFileTransfer` and private `Upload`. | The local file must be uploaded to the HTTP file service first. |
| 2. Upload result | `FileUploadResult.FileID` is read; upload notification calls `IMPP.Client.OffLineFileSend.trans_UploadCompleted(fileId)`. | The server-issued file id becomes the durable reference. |
| 3. Chat file message | `trans_UploadCompleted` and `MessageScheduling.SendFileMessage` build `OFFLINE_FILE_TRANSFER;...` payloads and call `Chat.sendFileMessage`. | The chat send step publishes metadata/reference, not raw file bytes. |

Conclusion: file send is upload-first, chat-message-second. A direct chat message is insufficient without a valid uploaded file id or remote folder reference.

## Required values

| Value | Status | Evidence |
| --- | --- | --- |
| local file path | `required_confirmed` | OffLineFileSend constructor receives localFilePath; sendFile uses get__localFilePath; MessageScheduling.SendFileMessage uses FileTransferArgs.get_LocalFilePath. |
| server file id / remote folder | `required_confirmed` | Upload returns FileUploadResult.FileID; trans_UploadCompleted(fileId) passes it to Chat.sendFileMessage and Packet.set_id. MessageScheduling path uses FileTransferArgs.get_RemoteFolder. |
| file name and file size | `required_confirmed` | SendFileMessage builds OFFLINE_FILE_TRANSFER payload from FileInfo/FileSystemInfo name and length; OffLineFileSend keeps _fileSize. |
| target JID / chat object | `required_confirmed` | UC_FileSend and MessageScheduling both require a live smack Chat; scheduled path derives it from RosterContactsArgs.get_RosterJid + UtilsChat.GetChat. |
| HTTP file server and auth | `required_confirmed` | FileUploadPara construction uses Config.ServerInfo.HTTPFileServer IP/Port/domain; service upload builds /FS/auth/resource/upload URL with UnifiedAuthentication token/app key/client secret/time/user id. |
| file hash | `not_confirmed_in_file_send_path` | No file-transfer-path MD5/SHA/checksum requirement was confirmed in the configured IL. MD5 hits belong to image/RTF or auth digest areas, not the offline file-send path. |

## Evidence excerpts

### IMPP.Client.OffLineFileSend.sendFile

Classification: `confirmed_signature`; phase: `upload`; matches: 3.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826149` | `signature_continuation` | `sendFile() cil managed` | `L826148: .method public hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826572` | `method_end` | `} // end of method OffLineFileSend::sendFile` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:824164` | `callsite` | `IL_026b:  callvirt   instance void IMPP.Client.OffLineFileSend::sendFile()` | `` |

### IMPP.Client.OffLineFileSend.trans_UploadCompleted

Classification: `confirmed_signature`; phase: `upload_to_message_boundary`; matches: 3.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826888` | `signature_continuation` | `trans_UploadCompleted(string fileId) cil managed` | `L826887: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:827241` | `method_end` | `} // end of method OffLineFileSend::trans_UploadCompleted` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826670` | `callsite` | `IL_0104:  call       instance void IMPP.Client.OffLineFileSend::trans_UploadCompleted(string)` | `L826574: .method private hidebysig instance void` |

### IMPP.Service.BLL.FileTransfer.FileUpload

Classification: `confirmed_signature`; phase: `upload`; matches: 17.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:851` | `signature_continuation` | `FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L849: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:870` | `method_end` | `} // end of method FileTransfer::FileUpload` | `L849: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:873` | `signature_continuation` | `instance void  AsynFileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L872: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:164` | `method_end` | `} // end of method IFileTransfer::FileUpload` | `L160: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:512182` | `callsite` | `IL_01d9:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608800` | `callsite` | `IL_00b2:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608921` | `callsite` | `IL_00c5:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L608836: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:679721` | `callsite` | `IL_00bf:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L679642: .method public hidebysig static void  UploadGroupImage(string jid,` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:699952` | `callsite` | `IL_024c:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:738959` | `callsite` | `IL_00bf:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L738869: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:739560` | `callsite` | `IL_00bf:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L739470: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:790010` | `callsite` | `IL_018b:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826414` | `callsite` | `IL_02b6:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:2852` | `reference` | `} // end of property FileTransfer::FileUploadMaxCount` | `L2825: .method family hidebysig newslot virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:2861` | `reference` | `} // end of property FileTransfer::FileUploadCount` | `L2825: .method family hidebysig newslot virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:186` | `reference` | `} // end of property IFileTransfer::FileUploadMaxCount` | `L177: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:205` | `reference` | `} // end of property IFileTransfer::FileUploadCount` | `L177: .method public hidebysig newslot abstract virtual` |

### IMPP.Service.BLL.FileTransfer.AsynFileUpload

Classification: `confirmed_signature`; phase: `upload`; matches: 3.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:873` | `signature_continuation` | `instance void  AsynFileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L872: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:883` | `method_end` | `} // end of method FileTransfer::AsynFileUpload` | `L872: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:169` | `method_end` | `} // end of method IFileTransfer::AsynFileUpload` | `L166: .method public hidebysig newslot abstract virtual` |

### FileUploadPara

Classification: `confirmed_signature`; phase: `upload_parameters`; matches: 66.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:851` | `signature_continuation` | `FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L849: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:873` | `signature_continuation` | `instance void  AsynFileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L872: .method public hidebysig newslot virtual final` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:162` | `signature_continuation` | `FileUpload(class IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L160: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:167` | `signature_continuation` | `instance void  AsynFileUpload(class IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara para) cil managed` | `L166: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1139` | `type_definition` | `.class public auto ansi serializable beforefieldinit IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara` | `L1086: .method family hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1155` | `method_end` | `} // end of method FileUploadPara::get_IsImg` | `L1146: .method public hidebysig specialname instance bool` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1167` | `method_end` | `} // end of method FileUploadPara::set_IsImg` | `L1157: .method private hidebysig specialname instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1178` | `method_end` | `} // end of method FileUploadPara::get_IsPublic` | `L1169: .method public hidebysig specialname instance bool` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1190` | `method_end` | `} // end of method FileUploadPara::set_IsPublic` | `L1180: .method public hidebysig specialname instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1234` | `method_end` | `} // end of method FileUploadPara::.ctor` | `L1192: .method public hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1263` | `method_end` | `} // end of method FileUploadPara::.ctor` | `L1236: .method public hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:512182` | `callsite` | `IL_01d9:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:512459` | `constructor_call` | `IL_04a3:  newobj     instance void [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara::.ctor(string,` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608787` | `constructor_call` | `IL_0092:  newobj     instance void [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara::.ctor(string,` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608795` | `callsite` | `IL_009c:  callvirt   instance void [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara::set_IsPublic(bool)` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608800` | `callsite` | `IL_00b2:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608908` | `constructor_call` | `IL_00a5:  newobj     instance void [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara::.ctor(string,` | `L608836: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608916` | `callsite` | `IL_00af:  callvirt   instance void [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara::set_IsPublic(bool)` | `L608836: .method private hidebysig instance void` |

### FileUploadResult.FileID

Classification: `confirmed_signature`; phase: `upload_result`; matches: 75.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.Service.dll.il:982` | `method_header` | `.method private hidebysig instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult` | `L982: .method private hidebysig instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1277` | `type_definition` | `.class public auto ansi serializable beforefieldinit IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult` | `L1236: .method public hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1307` | `method_end` | `} // end of method FileUploadResult::.ctor` | `L1284: .method public hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1318` | `method_end` | `} // end of method FileUploadResult::get_FileID` | `L1309: .method public hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1330` | `method_end` | `} // end of method FileUploadResult::set_FileID` | `L1320: .method private hidebysig specialname instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1341` | `method_end` | `} // end of method FileUploadResult::get_Url` | `L1332: .method public hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:1353` | `method_end` | `} // end of method FileUploadResult::set_Url` | `L1343: .method private hidebysig specialname instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:512182` | `callsite` | `IL_01d9:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:512315` | `callsite` | `IL_0322:  callvirt   instance string [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult::get_FileID()` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608800` | `callsite` | `IL_00b2:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608819` | `callsite` | `IL_00e0:  callvirt   instance string [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult::get_FileID()` | `L608722: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608921` | `callsite` | `IL_00c5:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L608836: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:608940` | `callsite` | `IL_00f3:  callvirt   instance string [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult::get_FileID()` | `L608836: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:679721` | `callsite` | `IL_00bf:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L679642: .method public hidebysig static void  UploadGroupImage(string jid,` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:679747` | `callsite` | `IL_00f4:  callvirt   instance string [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult::get_FileID()` | `L679642: .method public hidebysig static void  UploadGroupImage(string jid,` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:699952` | `callsite` | `IL_024c:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:699993` | `callsite` | `IL_02bf:  callvirt   instance string [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult::get_FileID()` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:738959` | `callsite` | `IL_00bf:  callvirt   instance class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadResult [IMPP.ServiceBase]IMPP.ServiceBase.Interface.IFileTransfer::FileUpload(class [IMPP.ServiceBase]IMPP.ServiceBase.ModelBase.FileServiceBase.FileUploadPara)` | `L738869: .method private hidebysig instance void` |

### MessageScheduling.SendFileMessage

Classification: `confirmed_signature`; phase: `message`; matches: 3.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:1153803` | `signature_continuation` | `SendFileMessage(class IMPP.Client.Business.RosterContacts.RosterContactsArgs rosterArgs,` | `L1153802: .method public hidebysig static class [smack]com.vision.smack.packet.XmppMessage` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:1154125` | `method_end` | `} // end of method MessageScheduling::SendFileMessage` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:728711` | `callsite` | `IL_01fb:  call       class [smack]com.vision.smack.packet.XmppMessage IMPP.Client.Core.MessageEngine.MessageScheduling::SendFileMessage(class IMPP.Client.Business.RosterContacts.RosterContactsArgs,` | `` |

### Chat.sendFileMessage

Classification: `confirmed_signature`; phase: `message`; matches: 8.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:1235` | `signature_continuation` | `sendFileMessage(string p_message,` | `L1233: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:1244` | `method_end` | `} // end of method Chat::sendFileMessage` | `L1233: .method public hidebysig newslot abstract virtual` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:21442` | `signature_continuation` | `sendFileMessage(string p_message,` | `L21441: .method public hidebysig virtual instance class com.vision.smack.packet.XmppMessage` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:21490` | `method_end` | `} // end of method P2PChat::sendFileMessage` | `L21441: .method public hidebysig virtual instance class com.vision.smack.packet.XmppMessage` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:30070` | `signature_continuation` | `sendFileMessage(string p_message,` | `L30069: .method public hidebysig virtual instance class com.vision.smack.packet.XmppMessage` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\smack.dll.il:30119` | `method_end` | `} // end of method ChatRoom::sendFileMessage` | `L30069: .method public hidebysig virtual instance class com.vision.smack.packet.XmppMessage` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:827225` | `callsite` | `IL_034d:  callvirt   instance class [smack]com.vision.smack.packet.XmppMessage [smack]com.vision.smack.Chat::sendFileMessage(string,` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:1153922` | `callsite` | `IL_00f1:  callvirt   instance class [smack]com.vision.smack.packet.XmppMessage [smack]com.vision.smack.Chat::sendFileMessage(string,` | `L1153802: .method public hidebysig static class [smack]com.vision.smack.packet.XmppMessage` |

### Required values: path id size target jid

Classification: `confirmed_signature`; phase: `requirements`; matches: 550.

| Source line | Kind | Snippet | Method context |
| --- | --- | --- | --- |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:611789` | `method_end` | `} // end of method RosterContactsArgs::get_RosterJid` | `L611780: .method public hidebysig specialname instance class [smack]com.vision.smack.Jid` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:670956` | `type_definition` | `.class public auto ansi beforefieldinit IMPP.Client.Business.Authentication.UnifiedAuthenticationCenter` | `L670876: .method private hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:671260` | `method_end` | `} // end of method UnifiedAuthenticationCenter::Authentication` | `` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:671331` | `method_end` | `} // end of method UnifiedAuthenticationCenter::GetServerTimeSpan` | `L671262: .method public hidebysig instance valuetype [mscorlib]System.TimeSpan` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:671390` | `method_end` | `} // end of method UnifiedAuthenticationCenter::ConvertStringToDateTime` | `L671333: .method private hidebysig instance valuetype [mscorlib]System.DateTime` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:671406` | `method_end` | `} // end of method UnifiedAuthenticationCenter::InitServiceManager` | `L671392: .method public hidebysig instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:671416` | `method_end` | `} // end of method UnifiedAuthenticationCenter::.ctor` | `L671408: .method public hidebysig specialname rtspecialname` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:723604` | `method_end` | `} // end of method FileTransferArgs::get_LocalFilePath` | `L723595: .method public hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:723650` | `method_end` | `} // end of method FileTransferArgs::get_RemoteFolder` | `L723641: .method public hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:723876` | `method_end` | `} // end of method RosterContactsGroupArgs::get_RosterJid` | `L723867: .method public hidebysig specialname instance class [smack]com.vision.smack.Jid` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:767951` | `method_end` | `} // end of method ServerInfo::set_HTTPFileServer` | `L767941: .method public hidebysig specialname instance void` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:767962` | `method_end` | `} // end of method ServerInfo::get_HTTPFileServer` | `L767953: .method public hidebysig specialname instance class IMPP.Client.Server` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:768272` | `method_end` | `} // end of method BaseConfig::UnifiedAuthenticationAddress` | `L768241: .method public hidebysig instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826017` | `method_end` | `} // end of method OffLineFileSend::get__localFilePath` | `L826008: .method private hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:826109` | `method_end` | `} // end of method OffLineFileSend::get__fileSize` | `L826100: .method private hidebysig specialname instance int64` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:1339551` | `method_end` | `} // end of method OffLineFileRecv::get__fileSize` | `L1339542: .method private hidebysig specialname instance int64` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPP.ServiceBase.dll.il:477` | `method_end` | `} // end of method FileTransferParaBase::get_LocalFilePath` | `L468: .method public hidebysig specialname instance string` |
| `runs\offline-evidence-intake\zyl-qqfile-20260709\metadata\c28-il\IMPlatformClient.exe.il:13688` | `callsite` | `IL_0179:  callvirt   instance class [smack]com.vision.smack.Chat [smack]com.vision.smack.ChatManager::GetChat(class [smack]com.vision.smack.XMPPConnection,` | `` |

## Inference

- High confidence: upload and file-message finalization are separate steps.
- High confidence: `FileUploadPara` needs HTTP file server host/port/domain plus local file path and upload options.
- High confidence: `Chat.sendFileMessage` produces the XMPP file-message envelope after file metadata is available.
- Medium confidence: B-route file send must either call the same logged-in service/runtime or reproduce the authenticated HTTP upload plus XMPP file-message sequence.
- Low confidence until bridge evidence: an external sidecar can obtain the same service/auth/chat objects without being inside the logged-in client process.

## Decision

Offline static evidence supports B-route research, but file sending needs more than one method call: upload first, then chat file-message finalization. The next blocker is reachability: whether an IPC/plugin/in-process bridge can access the logged-in `IFileTransfer` service and smack `Chat` object.

## Next work

1. Extract bridge/IPC/plugin candidates before coding any file-send adapter.
2. If a bridge exists, prototype non-mutating discovery first: service availability, chat object lookup, and upload endpoint metadata only.
3. Keep A-route/RPA backup-only.