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fields are now deleted when the val is empty .... among other changes

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This commit is contained in:
Sebastian Moser
2023-01-14 23:14:37 +01:00
parent 5d4ea7256e
commit 188a7b2a7e
8 changed files with 237 additions and 59 deletions
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140
src/server/proto.rs
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@@ -62,7 +62,7 @@ use tokio::sync::{Mutex, mpsc};
use crate::server;
use crate::error::MizeError;
#[derive(Clone)]
#[derive(Clone, Debug)]
pub struct Message {
pub raw: Vec<u8>,
version: u8,
@@ -70,6 +70,7 @@ pub struct Message {
origin: Origin,
index: usize,
meta_gotten: bool,
has_meta: bool,
id: Option<String>,
}
@@ -80,7 +81,7 @@ pub struct Message {
// None,
//}
#[derive(Clone)]
#[derive(Clone, Debug)]
pub enum Origin {
Client(server::Client), //the client id
Module(server::Module), //Module_name
@@ -278,8 +279,11 @@ impl Message {
if count == 2 {break};
};
let mut has_meta = false;
if (cmd >= 128) {cmd = cmd - 128; has_meta = true}
Message { raw: vec, version, cmd, index: 2 , origin, meta_gotten: false, id: None}
Message { raw: vec, version, cmd, index: 2 , origin, meta_gotten: false, id: None, has_meta}
}
pub async fn send(self, origin: &Origin) {
origin.send(self).await;
@@ -289,6 +293,11 @@ impl Message {
let mut meta: HashMap<String, String> = HashMap::new();
meta.insert("c".to_string(), format!("{}", self.origin.get_id()));
self.set_metadata(meta)?;
//add 128 to the cmd
self.raw[1] = self.raw[1] + 128;
let mut id_iter = id.chars();
//scip the first "!"
id_iter.next();
@@ -297,7 +306,7 @@ impl Message {
let modules = mutexes.modules.lock().await;
for module in &*modules {
if (module.name == mod_name) {
self.send(&Origin::Module(module.clone()));
self.send(&Origin::Module(module.clone())).await;
return Ok(());
}
}
@@ -371,11 +380,11 @@ impl Message {
for (mut key, mut val) in metadata.iter(){
meta_vec.append(&mut key.clone().into_bytes());
meta_vec.push(';' as u8);
meta_vec.push('=' as u8);
meta_vec.append(&mut val.clone().into_bytes());
meta_vec.push('/' as u8);
meta_vec.push(';' as u8);
}
meta_vec.remove(meta_vec.len());
//meta_vec.remove(meta_vec.len());
meta_vec.push('}' as u8);
self.raw.splice(2..2, meta_vec);
@@ -383,7 +392,7 @@ impl Message {
}
pub fn get_metadata(&mut self) -> Result<HashMap<String, String>, MizeError> {
if !self.has_metadata() {
if !self.has_meta {
return Err(MizeError {
code: 108,
kind: "faulty_message".to_string(),
@@ -391,33 +400,37 @@ impl Message {
})
};
let meta_err = MizeError {
code: 107,
kind: "faulty_message".to_string(),
message: "Error while parsing the metadata of a message.".to_string(),
};
let mut meta_vec:Vec<u8> = Vec::new();
let mut msg_iter = self.raw[self.index..].iter();
if (msg_iter.nth(0).unwrap() != &('{' as u8)){
return Err(MizeError {
code: 107,
kind: "faulty_message".to_string(),
message: "Error while parsing the metadata of a message.".to_string(),
})
return Err(meta_err);
};
for ch in msg_iter {
meta_vec.push(*ch);
if (ch == &('}' as u8)){
let mut map: HashMap<String, String> = HashMap::new();
let string = String::from_utf8(meta_vec)?;
let sp: Vec<&str> = string.split("/").collect();
let sp: Vec<&str> = string.split(";").collect();
for st in sp.clone() {
let mut split = sp.split(|c| *c == ";");
let key = split.nth(0).unwrap()[0];
let val = split.nth(1).unwrap()[0];
if (st == ""){continue;}
let mut split = st.split("=").collect::<Vec<&str>>();
let key = split.clone().into_iter().nth(0).ok_or(meta_err.clone())?;
let val = split.into_iter().nth(1).ok_or(meta_err.clone())?;
map.insert(key.to_string(), val.to_string());
}
self.meta_gotten = true;
return Ok(map);
}
meta_vec.push(*ch);
};
return Err(MizeError {
@@ -428,16 +441,12 @@ impl Message {
}
pub fn has_metadata(&mut self) -> bool {
self.cmd >= 128
}
pub fn get_id(&mut self) -> Result<String, MizeError> {
//get the metadata just to increment the index
if let Some(id) = &self.id {
return Ok(id.clone());
}
if (self.has_metadata() && !self.meta_gotten){
if (self.has_meta && !self.meta_gotten){
self.get_metadata();
}
let mut ch: u8 = 0;
@@ -513,7 +522,7 @@ pub async fn handle_mize_message(
) -> Result<(), MizeError> {
////////////////////////////////////////////////////////////
//###########################################################//
//get and get_and_sub cmd from client or module
if ((message.cmd == MSG_GET || message.cmd == MSG_GET_AND_SUB) &&
(matches!(&message.origin, Origin::Client(_)) || matches!(&message.origin, Origin::Module(_))))
@@ -547,6 +556,7 @@ pub async fn handle_mize_message(
if (first_char == '!'){
message.clone().forward_module(id.clone(), mutexes.clone()).await;
return Ok(());
}
//forward to upstream server in case the item is from another Server
@@ -604,14 +614,81 @@ pub async fn handle_mize_message(
};
////////////////////////////////////////////////////////////
//###########################################################//
//give from module
if (message.cmd == MSG_GIVE && matches!(&message.origin, Origin::Module(_))){
//TODO
let meta = message.get_metadata()?;
let id: String = message.get_id()?;
let client_id_str = meta.get("c").ok_or(MizeError{
code: 11,
kind: "don't know yet".to_string(),
message: "there is no \"c\" key in the metadata of a message gotten from a module".to_string(),
})?;
let client_id: u64 = client_id_str.parse().map_err(|_| MizeError{
code: 11,
kind: "don't know yet".to_string(),
message: "Error (std::num::ParseIntError) while parsing the \"c\" key in the Message metadata from a give Message from a Module".to_string()
})?;
let clients = mutexes.clients.lock().await;
let modules = mutexes.modules.lock().await;
let module: Vec<&server::Module> = modules.iter().filter(|&module| module.client_id == client_id).collect();
let client: Vec<&Client>= clients.iter().filter(|&client| client.id == client_id).collect();
//let origin = if let Some(module) = modules.get(module_position)
let origin = if (module.len() == 1) {
Origin::Module(module[0].to_owned())
} else if (client.len() == 1) {
Origin::Client(client[0].to_owned())
} else {
return Err(MizeError{
code: 11,
kind: "don't know yet".to_string(),
message: "".to_string()
})
};
drop(clients);
drop(modules);
while message.raw[2] != '}' as u8 {
println!("CHAR: {:?}", message.raw[2]);
message.raw.remove(2);
}
message.raw.remove(2);
println!("message raw: {:?}", message.raw);
message.has_meta = false;
message.raw[1] = message.raw[1] - 128;
origin.send(message).await;
return Ok(());
};
////////////////////////////////////////////////////////////
//###########################################################//
//update from module
if (message.cmd == MSG_UPDATE && matches!(&message.origin, Origin::Module(_))){
let id: String = message.get_id()?;
let subs = mutexes.subs.lock().await;
let empty_vec = &Vec::new();
let subbed_origins = subs.get(&id).unwrap_or(empty_vec);
for origin in subbed_origins {
message.clone().send(origin).await;
}
};
//###########################################################//
//update_request from module and client
if (message.cmd == MSG_UPDATE_REQUEST && (matches!(&message.origin, Origin::Module(_)) || matches!(&message.origin, Origin::Client(_)))){
@@ -627,13 +704,12 @@ pub async fn handle_mize_message(
}
let update = Update::from_message(message.clone())?;
println!("UPDATE: {:?}", update.raw);
handle_update(update, mutexes, message.origin.clone()).await?;
return Ok(());
};
////////////////////////////////////////////////////////////
//###########################################################//
//delete from Client or Module
if (message.cmd == MSG_DELETE && (matches!(&message.origin, Origin::Module(_)) || matches!(&message.origin, Origin::Client(_)))){
let id: String = message.get_id()?;
@@ -648,7 +724,7 @@ pub async fn handle_mize_message(
}
////////////////////////////////////////////////////////////
//###########################################################//
//create from module and Client
if (message.cmd == MSG_CREATE && (matches!(&message.origin, Origin::Module(_)) || matches!(&message.origin, Origin::Client(_)))){
@@ -712,8 +788,9 @@ pub async fn handle_mize_message(
message.origin.send(Message::from_bytes(created_id_message, message.origin.clone())).await;
}
////////////////////////////////////////////////////////////
//###########################################################//
//for every other message
println!("Got a Message That did not Trigger any if Statement....");
return Ok(());
}
@@ -722,7 +799,6 @@ pub async fn handle_update(mut update: Update, mutexes: Mutexes, origin: Origin)
//and either call itemstore.update(), send the update to the module or upstream, or spawn another
//update by calling handle_update()
println!("handle_update");
///////////////////////////////// TYPE CODE ////////////////////////////////////////
//can change the update and spawn new updates (to a different item) (which would call the handle_update func again)