adlt/plugins/file_transfer.rs
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// copyright Matthias Behr, (c) 2022
//
// todos:
// [ ] - add unit test coverage!
use crate::{
dlt::{
DltArg, DltChar4, DltMessage, DltMessageLogType, DltMessageType, DLT_SCOD_ASCII,
DLT_SCOD_UTF8, DLT_TYPE_INFO_SINT, DLT_TYPE_INFO_UINT,
},
plugins::plugin::{Plugin, PluginState},
};
use serde_json::json;
use std::{
any::Any,
collections::HashMap,
error::Error,
fmt,
fs::File,
io::Write,
str::FromStr,
sync::{Arc, RwLock},
};
#[derive(Debug)]
struct FileTransferPluginError {
msg: String,
}
impl FileTransferPluginError {}
impl From<String> for FileTransferPluginError {
fn from(err: String) -> FileTransferPluginError {
FileTransferPluginError { msg: err }
}
}
impl From<&str> for FileTransferPluginError {
fn from(err: &str) -> FileTransferPluginError {
FileTransferPluginError::from(err.to_owned())
}
}
impl fmt::Display for FileTransferPluginError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", &self.msg)
}
}
impl Error for FileTransferPluginError {}
#[derive(Debug, PartialEq)]
enum FileTransferState {
/// we handle the case where only the FLST message is lost but the FLDA starts with the 1st package
MissingStart,
/// transfer started with a regular FLST message, but not completed yet or not detected yet as incomplete
Started,
/// final state for successfully completed transfers
Complete,
/// final state for corrupt/incomplete detected transfers. A transfer stays in Started as long as a corruption/incompleteness is detected.
Incomplete,
}
#[derive(Debug)]
/// data structure kept/created per recognized file transfer
struct FileTransfer {
ecu: DltChar4,
lifecycle: u32,
serial: u64,
state: FileTransferState,
file_name: String,
file_size: u64,
file_creation_date: String,
nr_packages: u64,
buffer_size: u64,
next_package: u64,
recvd_packages: u64,
recvd_payload: usize,
file_data: Vec<u8>,
auto_saved_to: Option<String>,
}
/// internal data for completed files. This contains the file data for completed transfers and is
/// stored inside the .internal_data member of the plugin state.
struct FileTransferStateData {
/// map from idx within the plugin.transfers vec to the file_data
completed_transfers: HashMap<usize, Vec<u8>>,
}
impl FileTransfer {
/// process FLDA packages
///
/// returns whether the state changed and shall be updated
///
/// ### Arguments:
/// * `package_nr` - nr of this package. Packages start with 1.
/// * `arg` - argument with the payload_raw
///
fn add_flda(&mut self, package_nr: u64, arg: &DltArg) -> bool {
// auto-learn package size?
if package_nr == 1 && self.buffer_size == 0 {
self.buffer_size = arg.payload_raw.len() as u64;
}
if self.state == FileTransferState::Started || self.state == FileTransferState::MissingStart
{
self.recvd_packages += 1;
if package_nr == self.next_package {
// package contains data?
if arg.payload_raw.len() as u64 == self.buffer_size
|| (self.next_package == self.nr_packages
&& (arg.payload_raw.len() as u64) < self.buffer_size)
// last package may be smaller
{
self.next_package += 1;
self.recvd_payload += arg.payload_raw.len();
if self.file_data.capacity() > 0 {
self.file_data.extend_from_slice(arg.payload_raw);
}
}
}
self.check_finished(false)
} else {
println!(
"FileTransfer add_flda got unexpected package {} on (in)complete!",
package_nr
);
false
}
}
/// checks whether the transfer is finished/completed/incomplete
/// returns whether state is changed and shall be updated
///
/// ### Arguments:
/// * `from_flfi` - indicates whether the call is coming from processing a FLFI packet. For FLFI the state is move to Incomplete if e.g. too many packages have been received.
fn check_finished(&mut self, from_flfi: bool) -> bool {
if from_flfi {
if self.recvd_packages == self.next_package - 1 {
if self.state == FileTransferState::MissingStart {
// we missed the start but got all others
self.state = FileTransferState::Complete;
if self.file_size == 0 {
self.file_size = self.recvd_payload as u64;
}
true
} else {
false
}
} else {
self.state = FileTransferState::Incomplete;
true
}
} else if self.next_package > self.nr_packages
&& (self.file_size == 0 || self.file_size as usize == self.recvd_payload)
{
self.file_size = self.recvd_payload as u64;
self.state = FileTransferState::Complete;
true
} else if self.recvd_packages >= self.nr_packages {
self.state = FileTransferState::Incomplete;
true
} else {
false
}
}
}
#[derive(Debug)]
pub struct FileTransferPlugin {
name: String,
enabled: bool,
allow_save: bool,
keep_flda: bool,
apid: Option<DltChar4>,
ctid: Option<DltChar4>,
auto_save_path: Option<String>,
auto_save_glob: Option<glob::Pattern>,
state: Arc<RwLock<PluginState>>,
transfers: Vec<FileTransfer>,
transfers_idx: HashMap<(DltChar4, u32, u64), usize>, // map ecu, lifecycle, serial
}
impl Plugin for FileTransferPlugin {
fn name(&self) -> &str {
&self.name
}
fn enabled(&self) -> bool {
self.enabled
}
fn state(&self) -> Arc<RwLock<PluginState>> {
self.state.clone()
}
/// check a msg for rewrite.
/// returns false if the msg should be discarded, true otherwise
/// we do check all rewrite configs. So one config could change a msg for further processing with next config
/// currently the rewrite array with javascrip functions is not supported.
/// Instead the replacement is done based on the capture group names:
/// - text -> setting payloadText
/// - timeStamp -> setting the timestamp_dms with the value captured in Seconds (can include parts of) (multiplied by 10_000)
fn process_msg(&mut self, msg: &mut DltMessage) -> bool {
if !self.enabled {
return true;
}
if let Some(apid) = &self.apid {
if let Some(m_apid) = msg.apid() {
if apid != m_apid {
return true;
}
} else {
return true;
}
}
if let Some(ctid) = &self.ctid {
if let Some(m_ctid) = msg.ctid() {
if ctid != m_ctid {
return true;
}
} else {
return true;
}
}
if msg.is_verbose() && msg.mstp() == DltMessageType::Log(DltMessageLogType::Info) {
match msg.noar() {
8 => {
if FileTransferPlugin::is_type(msg, "FLST") {
// file transfer start
let mut serial = 0;
let mut file_name = String::new();
let mut file_size = 0;
let mut file_creation_date = String::new();
let mut nr_packages = 0;
let mut buffer_size = 0;
let args = msg.into_iter();
for (i, arg) in args.enumerate() {
match i {
0 => {} // FLST
1 => {
// serial
if let Ok(s) = arg_as_uint(&arg) {
serial = s;
} else {
println!("FLST unexpected serial type!");
break;
}
}
2 => {
// filename
if let Ok(name) = arg_as_string(&arg) {
file_name += &name;
}
}
3 => {
// fileSize
if let Ok(s) = arg_as_uint(&arg) {
file_size = s;
} else {
println!("FLST unexpected file size type!");
break;
}
}
4 => {
// file creation date
if let Ok(name) = arg_as_string(&arg) {
file_creation_date += &name;
}
}
5 => {
// nr packages
if let Ok(s) = arg_as_uint(&arg) {
nr_packages = s;
} else {
println!("FLST unexpected nr_packages type!");
break;
}
}
6 => {
// buffer size
if let Ok(s) = arg_as_uint(&arg) {
buffer_size = s;
} else {
println!("FLST unexpected buffer_size type!");
break;
}
break;
}
_ => {}
}
}
/*println!(
"FLST serial={} file_name={} file_size={} file_creation_date()={} nr_packages={} buffer_size={}",
serial, file_name, file_size, file_creation_date, nr_packages, buffer_size
);*/
if nr_packages > 0 && buffer_size > 0 {
let keep_data = self.allow_save
|| (if let Some(pat) = &self.auto_save_glob {
pat.matches(&file_name)
} else {
false
});
self.transfers.push(FileTransfer {
ecu: msg.ecu,
lifecycle: msg.lifecycle,
state: FileTransferState::Started,
serial,
file_name,
file_size,
file_creation_date,
nr_packages,
buffer_size,
next_package: 1,
recvd_packages: 0,
recvd_payload: 0,
file_data: Vec::with_capacity(if keep_data {
(nr_packages * buffer_size) as usize
} else {
0
}),
auto_saved_to: None,
});
self.transfers_idx
.insert((msg.ecu, msg.lifecycle, serial), self.transfers.len() - 1);
self.update_state();
}
}
}
5 => {
if FileTransferPlugin::is_type(msg, "FLDA") {
// file transfer data
let mut serial = u64::MAX;
let mut package_nr = u64::MAX;
let args = msg.into_iter();
for (i, arg) in args.enumerate() {
match i {
0 => {} // FLDA
1 => {
if let Ok(s) = arg_as_uint(&arg) {
serial = s;
} else {
println!("FLDA unexpected serial type!");
break;
}
}
2 => {
if let Ok(s) = arg_as_uint(&arg) {
// is weirdly a SINT32...
package_nr = s;
} else {
println!("FLDA unexpected package_nr type!");
break;
}
}
3 => {
if let Some(file_transfer_idx) =
self.transfers_idx.get(&(msg.ecu, msg.lifecycle, serial))
{
let file_transfer =
self.transfers.get_mut(*file_transfer_idx).unwrap();
if file_transfer.add_flda(package_nr, &arg) {
if file_transfer.state == FileTransferState::Complete {
let glob = &self.auto_save_glob;
let path = &self.auto_save_path;
FileTransferPlugin::check_auto_save(
glob,
path,
file_transfer,
self.allow_save,
);
// need to do that before the update_state as file_data gets moved then
}
self.update_state();
}
} else if package_nr == 1 {
// incomplete, but can recover as this is the first package
let mut file_transfer = FileTransfer {
ecu: msg.ecu,
lifecycle: msg.lifecycle,
state: FileTransferState::MissingStart,
serial,
file_name: "<missing_flst>".to_owned(),
file_size: 0,
file_creation_date: "".to_owned(),
nr_packages: u64::MAX,
buffer_size: 0,
next_package: 1,
recvd_packages: 0,
recvd_payload: 0,
file_data: Vec::with_capacity(if self.allow_save {
512
} else {
0
}), // we do need a capacity as we use that to indicate whether to store data or not
auto_saved_to: None,
};
let _ = file_transfer.add_flda(package_nr, &arg); // ignore return value, we do update_state anyhow
self.transfers.push(file_transfer);
self.transfers_idx.insert(
(msg.ecu, msg.lifecycle, serial),
self.transfers.len() - 1,
);
self.update_state();
}
break;
}
_ => {}
}
}
if !self.keep_flda {
return false;
}
}
}
3 => {
if FileTransferPlugin::is_type(msg, "FLFI") {
// file transfer finish
let mut serial = u64::MAX;
let args = msg.into_iter();
for (i, arg) in args.enumerate() {
match i {
0 => {} // FLFI
1 => {
if let Ok(s) = arg_as_uint(&arg) {
serial = s;
} else {
println!("FLDA unexpected serial type!");
break;
}
break;
}
_ => {}
}
}
if let Some(file_transfer_idx) =
self.transfers_idx.get(&(msg.ecu, msg.lifecycle, serial))
{
let file_transfer = self.transfers.get_mut(*file_transfer_idx).unwrap();
// mark as finished:
if file_transfer.check_finished(true) {
if file_transfer.state == FileTransferState::Complete {
let glob = &self.auto_save_glob;
let path = &self.auto_save_path;
FileTransferPlugin::check_auto_save(
glob,
path,
file_transfer,
self.allow_save,
);
// need to do that before the update_state as file_data gets moved then
}
self.update_state();
}
}
}
}
_ => {}
}
}
true
}
}
impl FileTransferPlugin {
pub fn from_json(
config: &serde_json::Map<String, serde_json::Value>,
) -> Result<FileTransferPlugin, Box<dyn Error>> {
let name = match &config.get("name") {
Some(serde_json::Value::String(s)) => Some(s.clone()),
_ => {
return Err(
FileTransferPluginError::from("config 'name' not a string/missing").into(),
)
}
};
if name.is_none() {
return Err(FileTransferPluginError::from("FileTransferPlugin: name missing").into());
}
let enabled = match &config.get("enabled") {
Some(serde_json::Value::Bool(b)) => *b,
None => true, // default to true
_ => return Err(FileTransferPluginError::from("config 'enabled' not a bool").into()),
};
let allow_save = match &config.get("allowSave") {
Some(serde_json::Value::Bool(b)) => *b,
None => true, // default to true
_ => return Err(FileTransferPluginError::from("config 'allowSave' not a bool").into()),
};
let keep_flda = match &config.get("keepFLDA") {
Some(serde_json::Value::Bool(b)) => *b,
None => false, // default to false
_ => return Err(FileTransferPluginError::from("config 'keepFLDA' not a bool").into()),
};
let apid = match &config.get("apid") {
Some(serde_json::Value::String(s)) => match DltChar4::from_str(s) {
Ok(apid) => Some(apid),
Err(e) => {
return Err(FileTransferPluginError::from(format!(
"config 'apid' failed parsing with:{:?}",
e
))
.into())
}
},
None => None,
_ => return Err(FileTransferPluginError::from("config 'apid' not a string").into()),
};
let ctid = match &config.get("ctid") {
Some(serde_json::Value::String(s)) => match DltChar4::from_str(s) {
Ok(apid) => Some(apid),
Err(e) => {
return Err(FileTransferPluginError::from(format!(
"config 'ctid' failed parsing with:{:?}",
e
))
.into())
}
},
None => None,
_ => return Err(FileTransferPluginError::from("config 'ctid' not a string").into()),
};
let auto_save_path = match &config.get("autoSavePath") {
Some(serde_json::Value::String(s)) => Some(s.to_owned()),
None => None,
_ => {
return Err(
FileTransferPluginError::from("config 'autoSavePath' not a string").into(),
)
}
};
let auto_save_glob = match &config.get("autoSaveGlob") {
Some(serde_json::Value::String(s)) => match glob::Pattern::new(s) {
Ok(p) => Some(p),
Err(e) => {
return Err(FileTransferPluginError::from(format!(
"config 'autoSaveGlob' failed parsing with:{:?}",
e
))
.into())
}
},
None => None,
_ => {
return Err(
FileTransferPluginError::from("config 'autoSaveGlob' not a string").into(),
)
}
};
let state = PluginState {
value: serde_json::json!({"name":name, "treeItems":[]}),
internal_data: Some(Box::new(FileTransferStateData {
completed_transfers: HashMap::new(),
})),
apply_command: Some(FileTransferPlugin::apply_command),
generation: 1,
// ..Default::default()
};
Ok(FileTransferPlugin {
name: name.unwrap(),
enabled,
allow_save,
keep_flda,
apid,
ctid,
auto_save_path,
auto_save_glob,
transfers: Vec::new(),
transfers_idx: HashMap::new(),
state: Arc::new(RwLock::new(state)),
})
}
/// check whether that file transfer should be auto saved
/// and if so try the auto save.
fn check_auto_save(
glob: &Option<glob::Pattern>,
path: &Option<String>,
file_transfer: &mut FileTransfer,
keep_data: bool,
) {
if let Some(pat) = glob {
if file_transfer.state == FileTransferState::Complete
&& !file_transfer.file_data.is_empty()
&& pat.matches(&file_transfer.file_name)
{
// try to save to the path:
let path = if let Some(p) = path {
std::path::Path::new(p)
} else {
std::path::Path::new("./")
}
.join(&file_transfer.file_name);
// does the file exist? if so -> skip
if !path.exists() {
if let Some(par_dir) = path.parent() {
if !par_dir.exists() {
// try to create it:
let _ = std::fs::create_dir_all(par_dir); // let silently fail
}
if par_dir.exists() {
// try to write the file:
if let Ok(()) = File::create(&path)
.and_then(|mut f| f.write_all(&file_transfer.file_data))
{
file_transfer.auto_saved_to = path.to_str().map(|p| p.to_owned());
}
// todo set proper creation time!
}
}
}
if !keep_data && file_transfer.file_data.capacity() > 0 {
// file data wont be needed any more. we do this even if saving failed.
file_transfer.file_data = Vec::new();
}
}
}
}
/// update the plugin state object so that it reflects state changes.
///
/// Generates the treeItems with the file transfers found and their status.
///
/// It moves as well any completed transfers with buffers to the internal_data so
/// that apply_command can be performed on it.
fn update_state(&mut self) {
let mut state = self.state.write().unwrap();
// if we have completed transfers with buffer, move them to FileTransferStateData:
let completed_transfers = self
.transfers
.iter_mut()
.enumerate()
.filter(|(_, t)| !t.file_data.is_empty() && t.state == FileTransferState::Complete)
.collect::<Vec<_>>();
if !completed_transfers.is_empty() {
if let Some(internal_data) = &mut state.internal_data {
if let Some(internal_data) = internal_data.downcast_mut::<FileTransferStateData>() {
for (idx, t) in completed_transfers {
internal_data
.completed_transfers
.insert(idx, std::mem::take(&mut t.file_data));
}
}
}
}
state.value = serde_json::json!({"name":self.name, "treeItems":
self.transfers.iter().enumerate().map(|(idx,t)|{json!({
"label":
match t.state {
FileTransferState::Started => {
format!("Incomplete file transfer '{}', missing {} got {}/{}", t.file_name, t.next_package, t.recvd_packages, t.nr_packages)
},
FileTransferState::Complete => {
format!("'{}', {}kb", t.file_name, t.file_size/1024)
}
FileTransferState::MissingStart => {
format!("Incomplete file transfer. Missing FLST. Got {} packages.", t.recvd_packages)
}
FileTransferState::Incomplete => {
format!("Incomplete file transfer. Missed package {}", t.next_package)
}
},
"iconPath": match t.state {
FileTransferState::Complete => "file",
_ => "warning",
},
"contextValue": match t.state {
FileTransferState::Complete if self.allow_save => json!("canSave"), // todo should better use availability of internal_data to support autoSave as well
_ => json!(null)
},
"cmdCtx": match t.state {
FileTransferState::Complete if self.allow_save => json!({"save":{"basename":t.file_name, "idx":idx }}),
_ => json!(null)
},
"tooltip":format!("{}, LC id={}, serial #{}, '{}', created at '{}', file size {} ", t.ecu, t.lifecycle, t.serial, t.file_name, t.file_creation_date, t.file_size),
"meta":json!({"lc":t.lifecycle, "autoSavedTo": t.auto_saved_to}),
})}).collect::<Vec<serde_json::Value>>()
});
state.generation += 1;
}
/// apply a command for the FileTransferPlugin
///
/// This is quite messy as the Plugins are +Send and the main flow - processing messages - should
/// not be blocked by any mutex,... is optimized for speed.
/// But as the commands usually come from a different thread the PluginState.internal_data is used
/// to pass/store data that needs to be processed by the command.
/// ## Arguments:
/// * `internal_data` - provides the internal data from the PluginState state.internal_data. So the caller doesn't need to keep the plugin but needs to have access to the plugin state only.
/// * `cmd` - command to perform. Only "save" is supported.
/// * `params` - parameter object for the command. Here a "saveAs" string member contains the path&filename where to save the file.
/// * `ctx` - context object that references which file transfer is to be saved. ctx.save.idx is used to identify the file transfer data.
///
/// returns true if the command has been processed sucessfully.
fn apply_command(
internal_data: &Option<Box<dyn Any + Send + Sync>>,
cmd: &str,
params: Option<&serde_json::Map<String, serde_json::Value>>,
ctx: Option<&serde_json::Map<String, serde_json::Value>>,
) -> bool {
if let Some(internal_data) = internal_data {
match internal_data.downcast_ref::<FileTransferStateData>() {
Some(state_data) => {
println!(
"FileTransferPlugin::apply_command(cmd:{}, params:{:?}, ctx:{:?})... ",
cmd, params, ctx,
);
println!(
"got internal FileTransferStateData! #transfers={}",
state_data.completed_transfers.len()
);
match cmd {
"save" => {
// get the ctx.save.idx:
// and params.saveAs
if let (Some(params), Some(ctx)) = (params, ctx) {
if let (Some(save_as), Some(idx)) = (
params.get("saveAs").and_then(serde_json::Value::as_str),
ctx.get("save")
.and_then(serde_json::Value::as_object)
.and_then(|f| f.get("idx"))
.and_then(serde_json::Value::as_u64),
) {
if let Some(data) =
state_data.completed_transfers.get(&(idx as usize))
{
// hurray... lets write this to file:
println!(" saving {} bytes to {}", data.len(), save_as);
match File::create(save_as)
.and_then(|mut f| f.write_all(data))
{
Ok(_) => true,
Err(e) => {
println!("saving failed with err '{}'", e);
false
}
}
} else {
println!("didn't found idx {}", idx);
false
}
} else {
false
}
} else {
false
}
}
_ => false,
}
}
None => {
println!("no internal FileTransferStateData!");
false
}
}
} else {
false
}
}
/// check whether a msg is a file transfer message of type_str
///
/// The messages have as first and last payload argument a string
/// with that type.
/// Does only work for type_str with len 4!
pub fn is_type(msg: &DltMessage, type_str: &str) -> bool {
// the msg for a type starts and ends with that string
// we dont check noar here again
let mut args_iter = msg.into_iter();
if let Some(arg0) = args_iter.next() {
if arg0.scod() == DLT_SCOD_ASCII && arg0.payload_raw.len() == 5 {
// todo hardcoded for perfo 4 plus 0
if arg0.payload_raw[0..4].eq(type_str.as_bytes()) {
if let Some(arg1) = args_iter.last() {
if arg1.scod() == DLT_SCOD_ASCII
&& arg1.payload_raw.len() == 5
&& arg1.payload_raw[0..4].eq(type_str.as_bytes())
{
return true;
}
}
}
}
}
false
}
}
fn arg_as_uint(arg: &crate::dlt::DltArg) -> Result<u64, ()> {
let is_uint = arg.type_info & DLT_TYPE_INFO_UINT > 0;
if is_uint {
match arg.payload_raw.len() {
4 => Ok(if arg.is_big_endian {
u32::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
u32::from_le_bytes(arg.payload_raw.try_into().unwrap())
} as u64),
8 => Ok(if arg.is_big_endian {
u64::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
u64::from_le_bytes(arg.payload_raw.try_into().unwrap())
}),
2 => Ok(if arg.is_big_endian {
u16::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
u16::from_le_bytes(arg.payload_raw.try_into().unwrap())
} as u64),
1 => Ok(arg.payload_raw[0] as u64),
// todo 16... not yet supported here
_ => Err(()),
}
} else {
let is_sint = arg.type_info & DLT_TYPE_INFO_SINT > 0;
if is_sint {
match arg.payload_raw.len() {
4 => {
let i = if arg.is_big_endian {
i32::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
i32::from_le_bytes(arg.payload_raw.try_into().unwrap())
};
if i >= 0 {
Ok(i as u64)
} else {
Err(())
}
}
8 => {
let i = if arg.is_big_endian {
i64::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
i64::from_le_bytes(arg.payload_raw.try_into().unwrap())
};
if i >= 0 {
Ok(i as u64)
} else {
Err(())
}
}
2 => {
let i = if arg.is_big_endian {
i16::from_be_bytes(arg.payload_raw.try_into().unwrap())
} else {
i16::from_le_bytes(arg.payload_raw.try_into().unwrap())
};
if i >= 0 {
Ok(i as u64)
} else {
Err(())
}
}
1 => {
if arg.payload_raw[0] as i8 >= 0 {
Ok(arg.payload_raw[0] as u64)
} else {
Err(())
}
}
// todo 16... not yet supported here
_ => Err(()),
}
} else {
println!("arg_as_uint got type_info={}", arg.type_info);
Err(())
}
}
}
fn arg_as_string(arg: &crate::dlt::DltArg) -> Result<String, ()> {
if arg.is_string() && arg.payload_raw.len() > 1 {
match arg.scod() {
DLT_SCOD_ASCII => {
let (s, _) = encoding_rs::WINDOWS_1252
.decode_without_bom_handling(&arg.payload_raw[0..arg.payload_raw.len() - 1]);
Ok(String::from(s))
}
DLT_SCOD_UTF8 => {
let s = String::from_utf8_lossy(&arg.payload_raw[0..arg.payload_raw.len() - 1]);
Ok(String::from(s))
}
_ => {
println!("FLST unexpected filename scod {}", arg.scod());
Err(())
}
}
} else {
Err(())
}
}
#[cfg(test)]
mod tests {
use crate::{
dlt::{
DLT_TYLE_16BIT, DLT_TYLE_32BIT, DLT_TYLE_64BIT, DLT_TYPE_INFO_RAWD, DLT_TYPE_INFO_STRG,
},
utils::payload_from_args,
};
use super::*;
use serde_json::json;
use tempfile::NamedTempFile;
#[test]
fn init_plugin_and_recover() {
// good case:
let cfg = json!({"name":"foo","enabled": false, });
let p = FileTransferPlugin::from_json(cfg.as_object().unwrap());
assert!(p.is_ok());
let p = p.unwrap();
assert_eq!(p.name, "foo");
assert!(!p.enabled);
assert!(p.allow_save);
assert!(!p.keep_flda);
assert!(p.apid.is_none());
assert!(p.ctid.is_none());
let state = p.state();
let state = state.read().unwrap();
assert_eq!(state.generation, 1); // first update done
let state_value = &state.value;
assert!(state_value.is_object());
let state_obj = state_value.as_object().unwrap();
assert!(state_obj.contains_key("name"));
assert!(state_obj.contains_key("treeItems"));
let tree_items = state_obj.get("treeItems").unwrap();
assert!(tree_items.is_array());
assert_eq!(tree_items.as_array().unwrap().len(), 0);
// state can be debug printed:
assert!(!format!("{:?}", state).is_empty());
// name missing: -> err
let cfg = json!({"enabled": false});
let p = FileTransferPlugin::from_json(cfg.as_object().unwrap());
assert!(p.is_err());
// enabled missing -> default true
let cfg = json!({"name": "f"});
let p = FileTransferPlugin::from_json(cfg.as_object().unwrap()).unwrap();
assert!(p.enabled);
// complete example
let cfg =
json!({"name": "f", "apid":"APID", "ctid":"CTID", "allowSave":false, "keepFLDA":true});
let mut p = FileTransferPlugin::from_json(cfg.as_object().unwrap()).unwrap();
println!("p={:?}", p); // we can debug print?
assert!(p.enabled);
assert!(!p.allow_save);
assert!(p.keep_flda);
assert!(p.apid.is_some());
assert!(p.ctid.is_some());
// process a msg FLDA and FLFI -> recovered transfer:
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLDA\0",
};
let arg2 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &42u32.to_be_bytes(),
};
let arg3 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &1i32.to_be_bytes(),
};
let arg4 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"data",
};
let arg5 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLDA\0",
};
let payload = payload_from_args(&[arg1, arg2, arg3, arg4, arg5]);
let mut m = DltMessage::get_testmsg_with_payload(true, 5, &payload);
let arg21 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLFI\0",
};
let arg22 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &42u32.to_be_bytes(),
};
let arg23 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLFI\0",
};
let payload = payload_from_args(&[arg21, arg22, arg23]);
let mut m2 = DltMessage::get_testmsg_with_payload(true, 3, &payload);
assert!(p.process_msg(&mut m)); // keep_flda is true
assert!(p.process_msg(&mut m2));
let cfg =
json!({"name": "f", "apid":"APID", "ctid":"CTID", "allowSave":true, "keepFLDA":false});
let mut p = FileTransferPlugin::from_json(cfg.as_object().unwrap()).unwrap();
assert!(p.enabled);
assert!(p.allow_save);
assert!(!p.keep_flda);
assert!(m.is_verbose());
assert_eq!(m.mstp(), DltMessageType::Log(DltMessageLogType::Info));
assert_eq!(p.state.read().unwrap().generation, 1);
assert!(!p.process_msg(&mut m)); // keep_flda is false
assert!(p.process_msg(&mut m2));
assert!(!p.transfers.is_empty());
assert_eq!(p.transfers_idx.get(&(m.ecu, m.lifecycle, 42)), Some(&0));
let transfer = p.transfers.get(0).unwrap();
println!("transfer={:?}", transfer); // we can debug print it
assert_eq!(transfer.state, FileTransferState::Complete);
let state = p.state.read().unwrap();
assert_eq!(state.generation, 3); // +1 for flda -> missingstart, +1 for FLFI
match state
.internal_data
.as_ref()
.unwrap()
.downcast_ref::<FileTransferStateData>()
{
Some(state_data) => {
assert_eq!(state_data.completed_transfers.len(), 1);
assert_eq!(
state_data.completed_transfers.get(&0),
Some(&b"data".to_vec())
);
}
_ => {
panic!()
}
}
// can we save the file?
let file = NamedTempFile::new().unwrap();
let file_path = String::from(file.path().to_str().unwrap());
assert!(FileTransferPlugin::apply_command(
&state.internal_data,
"save",
Some(json!({ "saveAs": file_path }).as_object().unwrap()),
Some(json!({"save":{"idx":0}}).as_object().unwrap()),
));
assert_eq!(
std::fs::metadata(&file_path).unwrap().len(),
b"data".len() as u64
);
}
#[test]
fn regular_transfer() {
// good case:
let cfg =
json!({"name": "f", "apid":"APID", "ctid":"CTID", "allowSave":true, "keepFLDA":false});
let mut p = FileTransferPlugin::from_json(cfg.as_object().unwrap()).unwrap();
let payload = payload_from_args(
&vec![
(DLT_TYPE_INFO_STRG, b"FLST\0" as &[u8]),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&17u32.to_le_bytes(), // serial
),
(DLT_TYPE_INFO_STRG, b"test_file.bin\0" as &[u8]), // file name
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&4u32.to_le_bytes(), // filesize
),
(DLT_TYPE_INFO_STRG, b"2022-06-02 21:54:00\0"), // creation date
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&1u32.to_le_bytes(), // nr packages
),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&512u32.to_le_bytes(), // buffer size
),
(DLT_TYPE_INFO_STRG, b"FLST\0"),
]
.iter()
.map(|a| DltArg {
type_info: a.0,
is_big_endian: false,
payload_raw: a.1,
})
.collect::<Vec<DltArg>>(),
);
let mut m_flst = DltMessage::get_testmsg_with_payload(false, 8, &payload);
let payload = payload_from_args(
&vec![
(DLT_TYPE_INFO_STRG, b"FLDA\0" as &[u8]),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&17u32.to_le_bytes(),
),
(
DLT_TYPE_INFO_SINT | DLT_TYLE_32BIT as u32,
&1i32.to_le_bytes(),
),
(DLT_TYPE_INFO_RAWD, b"data"),
(DLT_TYPE_INFO_STRG, b"FLDA\0" as &[u8]),
]
.iter()
.map(|a| DltArg {
type_info: a.0,
is_big_endian: false,
payload_raw: a.1,
})
.collect::<Vec<DltArg>>(),
);
let mut m_flda = DltMessage::get_testmsg_with_payload(false, 5, &payload);
let arg21 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLFI\0",
};
let arg22 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
is_big_endian: false,
payload_raw: &17u32.to_le_bytes(),
};
let arg23 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLFI\0",
};
let payload = payload_from_args(&[arg21, arg22, arg23]);
let mut m_flfi = DltMessage::get_testmsg_with_payload(false, 3, &payload);
assert!(p.process_msg(&mut m_flst));
assert!(!p.process_msg(&mut m_flda));
assert!(p.process_msg(&mut m_flfi));
assert!(!p.transfers.is_empty());
assert_eq!(
p.transfers_idx.get(&(m_flst.ecu, m_flst.lifecycle, 17)),
Some(&0)
);
let transfer = p.transfers.get(0).unwrap();
assert_eq!(transfer.state, FileTransferState::Complete);
let state = p.state.read().unwrap();
assert_eq!(state.generation, 3); // +1 for flst -> start, +1 for FLFI
match state
.internal_data
.as_ref()
.unwrap()
.downcast_ref::<FileTransferStateData>()
{
Some(state_data) => {
assert_eq!(state_data.completed_transfers.len(), 1);
assert_eq!(
state_data.completed_transfers.get(&0),
Some(&b"data".to_vec())
);
}
_ => {
panic!()
}
}
// can we save the file?
let file = NamedTempFile::new().unwrap();
let file_path = String::from(file.path().to_str().unwrap());
assert!(FileTransferPlugin::apply_command(
&state.internal_data,
"save",
Some(json!({ "saveAs": file_path }).as_object().unwrap()),
Some(json!({"save":{"idx":0}}).as_object().unwrap()),
));
assert_eq!(
std::fs::metadata(&file_path).unwrap().len(),
b"data".len() as u64
);
}
#[test]
fn auto_save() {
let test_dir = tempfile::tempdir().unwrap();
let cfg = json!({"name": "f", "apid":"APID", "ctid":"CTID", "allowSave":false, "keepFLDA":true, "autoSavePath":test_dir.path().to_str().unwrap(), "autoSaveGlob":"test_*.*"});
let mut p = FileTransferPlugin::from_json(cfg.as_object().unwrap()).unwrap();
let payload = payload_from_args(
&vec![
(DLT_TYPE_INFO_STRG, b"FLST\0" as &[u8]),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&17u32.to_le_bytes(), // serial
),
(DLT_TYPE_INFO_STRG, b"test_file.bin\0" as &[u8]), // file name
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&4u32.to_le_bytes(), // filesize
),
(DLT_TYPE_INFO_STRG, b"2022-06-02 21:54:00\0"), // creation date
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&1u32.to_le_bytes(), // nr packages
),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&512u32.to_le_bytes(), // buffer size
),
(DLT_TYPE_INFO_STRG, b"FLST\0"),
]
.iter()
.map(|a| DltArg {
type_info: a.0,
is_big_endian: false,
payload_raw: a.1,
})
.collect::<Vec<DltArg>>(),
);
let mut m_flst = DltMessage::get_testmsg_with_payload(false, 8, &payload);
let payload = payload_from_args(
&vec![
(DLT_TYPE_INFO_STRG, b"FLDA\0" as &[u8]),
(
DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
&17u32.to_le_bytes(),
),
(
DLT_TYPE_INFO_SINT | DLT_TYLE_32BIT as u32,
&1i32.to_le_bytes(),
),
(DLT_TYPE_INFO_RAWD, b"data"),
(DLT_TYPE_INFO_STRG, b"FLDA\0" as &[u8]),
]
.iter()
.map(|a| DltArg {
type_info: a.0,
is_big_endian: false,
payload_raw: a.1,
})
.collect::<Vec<DltArg>>(),
);
let mut m_flda = DltMessage::get_testmsg_with_payload(false, 5, &payload);
let arg21 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLFI\0",
};
let arg22 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
is_big_endian: false,
payload_raw: &17u32.to_le_bytes(),
};
let arg23 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLFI\0",
};
let payload = payload_from_args(&[arg21, arg22, arg23]);
let mut m_flfi = DltMessage::get_testmsg_with_payload(false, 3, &payload);
assert!(p.process_msg(&mut m_flst));
assert!(p.process_msg(&mut m_flda));
assert!(p.process_msg(&mut m_flfi));
assert!(!p.transfers.is_empty());
assert_eq!(
p.transfers_idx.get(&(m_flst.ecu, m_flst.lifecycle, 17)),
Some(&0)
);
let transfer = p.transfers.get(0).unwrap();
assert_eq!(
transfer.state,
FileTransferState::Complete,
"{:?}",
transfer
);
// was the file saved?
let file_path = test_dir.path().join("test_file.bin");
assert_eq!(
std::fs::metadata(file_path).unwrap().len(),
b"data".len() as u64
);
}
#[test]
fn is_type() {
// invalid:
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLST\0",
};
let payload = payload_from_args(&[arg1]);
let m = DltMessage::get_testmsg_with_payload(false, 1, &payload);
assert!(!FileTransferPlugin::is_type(&m, "FLST"));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLST\0",
};
let arg2 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLSQ\0",
};
assert_eq!(arg_as_string(&arg1), Ok("FLST".into()));
let payload = payload_from_args(&[arg1, arg2]);
let m = DltMessage::get_testmsg_with_payload(false, 2, &payload);
assert!(!FileTransferPlugin::is_type(&m, "FLST"));
// valid
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLST\0",
};
let arg2 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: false,
payload_raw: b"FLST\0",
};
assert_eq!(arg_as_string(&arg1), Ok("FLST".into()));
let payload = payload_from_args(&[arg1, arg2]);
let m = DltMessage::get_testmsg_with_payload(false, 2, &payload);
assert!(FileTransferPlugin::is_type(&m, "FLST"));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLST\0",
};
let arg2 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"data",
};
let arg3 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLST\0",
};
assert_eq!(arg_as_string(&arg1), Ok("FLST".into()));
let payload = payload_from_args(&[arg1, arg2, arg3]);
let m = DltMessage::get_testmsg_with_payload(true, 3, &payload);
assert!(FileTransferPlugin::is_type(&m, "FLST"));
}
#[test]
fn arg_as_uint_test() {
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_STRG,
is_big_endian: true,
payload_raw: b"FLST\0",
};
assert_eq!(arg_as_uint(&arg1), Err(()));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_16BIT as u32,
is_big_endian: true,
payload_raw: &42u16.to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
assert_eq!(arg_as_string(&arg1), Err(()));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &42u32.to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_UINT | DLT_TYLE_64BIT as u32,
is_big_endian: false,
payload_raw: &42u64.to_le_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_16BIT as u32,
is_big_endian: true,
payload_raw: &42i16.to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_16BIT as u32,
is_big_endian: true,
payload_raw: &(-42i16).to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Err(()));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &42i32.to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_32BIT as u32,
is_big_endian: true,
payload_raw: &(-42i32).to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Err(()));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_64BIT as u32,
is_big_endian: false,
payload_raw: &42u64.to_le_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Ok(42));
let arg1 = DltArg {
type_info: DLT_TYPE_INFO_SINT | DLT_TYLE_64BIT as u32,
is_big_endian: true,
payload_raw: &(-42i64).to_be_bytes(),
};
assert_eq!(arg_as_uint(&arg1), Err(()));
}
}