otaman/docs/api.md

# pysim-otaman-server — HTTP API reference

The server exposes a JSON HTTP API under `/api/*`. All responses carry
`Access-Control-Allow-Origin: *` (plus `Access-Control-Allow-Private-Network: true`
on the preflight), so the API is reachable from a separately-hosted PWA.

## Version compatibility

| Server | PWA (OTAMan) | Status |
|--------|-------------|--------|
| 1.x.x | 1.x.x | ✅ Compatible |
| 0.x.x | 1.x.x | ❌ Outdated — update server |
| 2.x.x+ | 1.x.x | ⚠️ Server newer — update PWA |

The server reports its version via `GET /api/version`. The PWA checks this on
connect and warns if versions are incompatible.

## Endpoints

| Endpoint | Method | Purpose |
|----------|--------|---------|
| `/api/version` | GET | Server version string |
| `/api/status` | GET | Card reader + card info + current selection |
| `/api/command` | POST | pySim command (equip, status, tree, etc.) |
| `/api/commands` | GET | List available pySim commands |
| `/api/tree` | POST | File tree browser for given FID/name |
| `/api/select` | POST | Select a file by name or FID |
| `/api/read` | POST | Read file content |
| `/api/write` | POST | Write raw hex data to a file |
| `/api/apdu` | POST | Raw APDU send |
| `/api/help` | POST | pySim help for a given command |
| `/api/send-ota` | POST | SCP80 OTA secured packet delivery |
| `/api/ram-install` | POST | Install a Java Card `.cap` file via SCP80 (INSTALL[for load] → LOAD ×N → INSTALL[for install]) |
| `/api/sp-verify` | POST | Verify secured packet against pySim reference |
| `/api/menu` | GET | Current STK menu (title + items + active) |
| `/api/menu-select` | POST | ENVELOPE(Menu Selection) with item_id |
| `/api/menu-respond` | POST | TERMINAL RESPONSE for paused STK command |
| `/api/stk-status` | GET | STK session state (active/pending/type) |
| `/api/events` | GET | Event list from SET UP EVENT LIST |
| `/api/event-send` | POST | Send ENVELOPE(Event Download) |
| `/api/proactive-log` | GET | Last 50 proactive commands |
| `/api/status-poll` | POST | Manual STATUS poll + FETCH if 91XX |
| `/api/rescue` | POST | Re-send TERMINAL PROFILE to recover CAT session |
| `/api/poll-status` | GET | Background STATUS polling state |
| `/api/poll-toggle` | POST | Enable/disable background polling |
| `/api/pli-qualifiers` | GET | List of qualifier codes with descriptions |
| `/api/pli-dict` | GET | Current dictionary (hex values per qualifier) |
| `/api/pli-dict` | POST | Update dictionary entries |

## Endpoint details

### `GET /api/version`

Returns server version for compatibility checking.

**Example response:**
```json
{"version": "2.0.0"}
```

### `GET /api/status`

Card reader, card type, current selection, and card state.

### `GET /api/commands`

List all available shell commands for the current card profile.

### `POST /api/command`

Execute any pysim-shell command.

```json
{"cmd": "select MF"}
```

Returns:

```json
{"output": "..."}
```

### `POST /api/apdu`

Send a raw APDU to the card.

```json
{"apdu": "00A4040000..."}
```

Returns:

```json
{"response": "...", "sw": "9000"}
```

### `POST /api/help`

Get structured help for a shell command.

```json
{"cmd": "apdu"}
```

Returns:
```json
{"usage": "apdu [-h] [--expect-sw EXPECT_SW] [--raw] APDU", "description": "...", "args": [{"name": "APDU", "type": "positional", "help": "..."}]}
```

### `POST /api/send-ota`

Send an OTA command (SCP80) to the card via SMS-PP-DOWNLOAD ENVELOPE.
The secured packet is delivered in an SMS-DELIVER TPDU wrapped in an ENVELOPE command.

**Request body:**
```json
{
  "sp": "00201516011515b00000...",
  "spi1": "16",
  "spi2": "01",
  "kic": "15",
  "kid": "15",
  "tar": "b00000",
  "cntr": "0000000001",
  "kicKey": "D6FCC023...",
  "kidKey": "1B07E7E0..."
}
```

**Response (delivery PoR):**
```json
{"success": true, "sw": "9000", "response_data": "027100000e0a...",
 "por": {"response_status": "por_ok", "tar": "B00000", "pcntr": 0,
         "decoded": {"number_of_commands": 1, "last_status_word": "6e00",
                      "last_response_data": ""}}}
```

**Response (submit PoR):** PoR is extracted from the SMS-SUBMIT TPDU
fetched via a proactive command (FETCH). The response contains the
same `por` structure if decoding succeeds.

The SPI2 `por_in_submit` bit (0x20) selects submit-mode PoR.

### `POST /api/ram-install`

Install a Java Card `.cap` file on the card via GlobalPlatform commands (INSTALL[for load] → LOAD ×N → INSTALL[for install (+ make selectable)]) wrapped in SCP80 secured packets. Each step is sent via ENVELOPE and its PoR is checked; the sequence aborts on the first PoR error. The `.cap` archive (a ZIP of nested components) is parsed server-side in `_cap_parse`; no external tooling is required.

**Request body:**
```json
{
  "cap_hex": "DECAFFED...",
  "sd_aid": "A000000003000000",
  "install_params": "C90000",
  "stk_params": "",
  "nv_quota": 0,
  "volatile_quota": 0,
  "make_selectable": true,
  "spi1": "0E", "spi2": "01",
  "kic": "15", "kid": "15",
  "tar": "000000",
  "cntr": "0000000001",
  "kicKey": "D6FCC023...",
  "kidKey": "1B07E7E0..."
}
```

| Field | Req | Description |
|---|---|---|
| `cap_hex` | yes | Even-length hex of the `.cap` file (zipped Java Card CAP), max 48 kB (98304 hex chars) |
| `sd_aid` | no | Security Domain AID for INSTALL[for load]; empty → default ISD `A000000003000000` |
| `install_params` | no | Hex C9 TLV install parameters; if empty, `gen_install_parameters()` is used with the quota/stk params |
| `stk_params` | no | Hex CA TLV (TS 102 226 §8.2.1.3.2.1) for SIM toolkit app-specific params |
| `nv_quota` / `volatile_quota` | no | Integer memory quotas (bytes) for `gen_install_parameters()` |
| `make_selectable` | no | If true (default), final INSTALL uses P1=`0C` (install + make selectable) |

**Response (success):**
```json
{"success": true, "failed_step": null,
 "steps": [{"name": "install_for_load", "apdu": "80E60200...", "por_status": "por_ok", "sw": "9000"},
           {"name": "load_0", "apdu": "80E80000...", "por_status": "por_ok", "sw": "9000"},
           {"name": "install_for_install", "apdu": "80E60C00...", "por_status": "por_ok", "sw": "9000"}],
 "final_cntr": "0000000004",
 "load_file_aid": "A000000003000000",
 "module_aid": "A000000003000000",
 "application_aid": "A000000003000000"}
```

**Response (failure):**
```json
{"success": false, "failed_step": "load_1",
 "steps": [{"name": "install_for_load", "por_status": "por_ok", "sw": "9000"},
           {"name": "load_1", "por_status": "rc_error", "sw": null}],
 "error": "..."}
```

The `steps` array contains one entry per GP command. `final_cntr` is the counter value after all successful steps (use it to update the card preset). The response is not streamed — all steps run server-side before the JSON is returned.

### `POST /api/sp-verify`

Cross-check a secured packet against pySim's `OtaDialectSms.encode_cmd`
reference. Returns the JS-generated packet, pySim reference, a match flag,
and the decoded SPI fields.

```json
{"spi1": "16", "spi2": "01", "kic": "15", "kid": "15", "tar": "b00000",
 "cntr": "0000000001", "apdu": "00a40000023f00",
 "kicKey": "D6FCC023...", "kidKey": "1B07E7E0..."}
```

**Response:**
```json
{"js_sp": "...", "py_sp": "...", "match": true,
 "diffs": [], "spi": {"counter": "counter_must_be_higher", ...}}
```

### `GET /api/menu`

Returns the SIM Toolkit SETUP MENU captured from the card's TERMINAL PROFILE
response at startup. Empty `{"items": []}` if the card didn't send a menu.

**Response:**
```json
{"command_number": 1, "items": [{"id": 128, "text": "Настройки/Settings"}],
 "title": "Alfa Mobile", "active": false}
```

### `POST /api/menu-select`

Sends an `ENVELOPE(MENU SELECTION)` with the selected item ID, then handles
the card's proactive response (DISPLAY TEXT or SELECT ITEM).

```json
{"item_id": 128}
```

**Response:**
```json
{"type": "display_text", "text": "Hello", "sw": "9122"}
```
or
```json
{"type": "select_item", "items": [{"id": 1, "text": "Sub-menu"}], "sw": "9122"}
```

### `POST /api/menu-respond`

Sends `TERMINAL RESPONSE` to the current proactive command with the given result
code. Continues the proactive chain if the card responds with `91XX`. If no
response arrives within `--menu-timeout` seconds (default 60, `0` disables), the
server watchdog sends the `timeout` result itself.

```json
{"result": "ok", "item_id": 1}
```

| `result` | TERMINAL RESPONSE code | Meaning |
|---|---|---|
| `ok` | `0x00` | Command performed successfully |
| `cancel` | `0x10` | Proactive session terminated by the user |
| `back` | `0x11` | Backward move in the proactive session requested by the user |
| `timeout` | `0x12` | No response from the user |

### `GET /api/stk-status`

Returns the current STK session state.
```json
{"active": true, "pending": true, "pending_type": "select_item"}
```

### `POST /api/read`

Read file content. Auto-detects transparent vs record files.

```json
{"name": "EF.ICCID", "fid": "2FE2", "parent_path": ["MF"], "mode": "raw"}
```

Returns transparent data:
```json
{"success": true, "sw": "9000", "file_type": "transparent", "data": "...",
 "apdu_times": [{"type": "select", "ms": 12}, {"type": "read_binary", "ms": 9}]}
```

Returns records:
```json
{"success": true, "sw": "9000", "file_type": "linear_fixed",
 "records": [{"num": 1, "data": "..."}, {"num": 2, "data": "..."}],
 "apdu_times": [{"type": "select", "ms": 12},
                {"type": "read_record", "ms": 11}, {"type": "read_record", "ms": 13}]}
```

`apdu_times` reports each command's duration (command sent to response
received) classified as `select`, `read_binary` or `read_record`; the PWA uses
it for snapshot timing statistics. Other commands are not reported.

### `POST /api/write`

Write raw hex data to a file.

```json
{"name": "EF.ICCID", "fid": "2FE2", "data": "A0A1A2...", "parent_path": ["MF"]}
```

For record files:
```json
{"name": "EF.ADN", "fid": "6F3A", "data": "A0A1...", "record_nr": 1, "parent_path": ["MF", "7F10"]}
```

Returns:
```json
{"success": true, "sw": "9000"}
```

### `POST /api/select`

Select a file by name or FID, with optional parent selection.

```json
{"name": "EF.ICCID", "fid": "2FE2", "parent_path": ["MF"]}
```

`parent_path` lists the path segments from MF to the parent (ADF names or
FIDs); the legacy single-segment `parent_sel` is still accepted but is only
unambiguous for ADFs. Resolution is strictly parent-scoped: model-known files
are selected through the requested parent only (pySim `select_file()`), never
via pySim's global selectables or its `probe_file()` model injection, so a
same-FID file under another parent is never picked and the filesystem model
is not modified. `allow_probe: true` (PWA custom files) additionally allows a
model-unknown 4-hex FID to be selected directly; any temporary model object
created for it is detached again before the response is sent.

Returns:
```json
{"name": "EF.ICCID", "fid": "2FE2", "file_type": "transparent",
 "file_size": 10, "record_len": null, "num_of_rec": null,
 "fci_hex": "621082024021...",
 "apdu_times": [{"type": "select", "ms": 12}], "exists": true}
```

`fci_hex` is the raw FCP template (`'62'`) from the SELECT response, used by
the PWA's Exact FCI checks; `file_size` / `record_len` / `num_of_rec` drive
the profiler's size and record checks. When the file does not exist the
endpoint responds `404` with `{"error": "...", "exists": false}`.

### `POST /api/tree`

Get directory listing with typed children.

```json
{"name": "MF", "fid": "3F00"}
```

Use `parent_path` (or the legacy `parent_sel`) to list a subdirectory, e.g.
`{"name": "DF.GSM-ACCESS", "fid": "5F3B", "parent_path": ["MF", "ADF.USIM"]}`.

Returns:
```json
{"exists": true, "name": "MF", "fid": "3F00", "file_type": "df", "children": [{"name": "EF.ICCID", "fid": "2fe2", "isDir": false}]}
```

### `GET /api/events`

Returns the event list captured from the card's SET UP EVENT LIST (an array of
event byte values, or `[]` when none was received).

### `POST /api/event-send`

Sends an `ENVELOPE(Event Download)` for a subscribed event.

```json
{"event_type": 4, "event_data": "01A0"}
```

`event_type` is required (the SET UP EVENT LIST event byte); `event_data` is
optional hex for events that carry data. Returns the SW and any response data:

```json
{"sw": "9000", "data": "..."}
```

### `GET /api/proactive-log`

Returns the last 50 proactive commands fetched during CAT sessions, newest
first:

```json
[{"type_hex": "25", "type_name": "SET UP MENU", "elapsed": 3.2, "bytes": 97}]
```

### `POST /api/status-poll`

Manually sends `STATUS` (F2) and, if the card answers `91XX`, runs the
proactive chain (FETCH → TERMINAL RESPONSE) until it settles. Returns:

```json
{"sw": "9000", "proactive": true}
```

### `POST /api/rescue`

Recovers a stuck CAT session by clearing the pending state and re-sending the
TERMINAL PROFILE. Returns whether a menu and event list were captured again:

```json
{"menu": true, "events": [4, 5]}
```

### `GET /api/poll-status`

Background STATUS polling state.

```json
{"enabled": true, "interval": 300}
```

### `POST /api/poll-toggle`

Turns background STATUS polling on or off.

```json
{"enabled": true}
```

Returns the new state (`{"enabled": ..., "interval": ...}`).

### `GET /api/pli-qualifiers`

Lists the PROVIDE LOCAL INFORMATION qualifier codes with their names.

```json
[{"code": "00", "name": "Location Information"}, {"code": "0A", "name": "Battery Charge Level"}]
```

### `GET /api/pli-dict`

Returns the current PLI data dictionary as a qualifier-code map.

```json
{"00": "0291...", "0A": "64"}
```

### `POST /api/pli-dict`

Updates dictionary entries. Body is a map of qualifier code to hex value; keys
must be known qualifiers and values valid hex, otherwise they are ignored.
Returns the updated dictionary.