79 lines
2.4 KiB
Rust
79 lines
2.4 KiB
Rust
use super::property::Property;
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use super::packet_type::PacketType;
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use crate::utils::buffer_reader::BuffReader;
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use crate::utils::buffer_reader::EncodedString;
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use crate::utils::buffer_reader::BinaryData;
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use crate::utils::buffer_reader::ParseError;
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use crate::packet::mqtt_packet::Packet;
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use heapless::Vec;
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pub const MAX_PROPERTIES: usize = 2;
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pub struct PubrelPacket<'a> {
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// 7 - 4 mqtt control packet type, 3-0 flagy
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pub fixed_header: u8,
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// 1 - 4 B lenght of variable header + len of payload
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pub remain_len: u32,
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pub packet_identifier: u16,
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pub reason_code: u8,
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pub property_len: u32,
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// properties
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pub properties: Vec<Property<'a>, MAX_PROPERTIES>,
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}
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impl<'a> PubrelPacket<'a> {
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pub fn decode_properties(& mut self, buff_reader: & mut BuffReader<'a>) {
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self.property_len = buff_reader.readVariableByteInt().unwrap();
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let mut x: u32 = 0;
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let mut prop: Result<Property, ParseError>;
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loop {
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let mut res: Property;
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prop = Property::decode(buff_reader);
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if let Ok(res) = prop {
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log::info!("Parsed property {:?}", res);
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x = x + res.len() as u32 + 1;
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self.properties.push(res);
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} else {
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// error handlo
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log::error!("Problem during property decoding");
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}
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if x == self.property_len {
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break;
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}
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}
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}
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pub fn decode_fixed_header(& mut self, buff_reader: & mut BuffReader) -> PacketType {
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let first_byte: u8 = buff_reader.readU8().unwrap();
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self.fixed_header = first_byte;
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self.remain_len = buff_reader.readVariableByteInt().unwrap();
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return PacketType::from(self.fixed_header);
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}
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pub fn decode_puback_packet(& mut self, buff_reader: & mut BuffReader<'a>) {
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if self.decode_fixed_header(buff_reader) != (PacketType::Pubrel).into() {
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log::error!("Packet you are trying to decode is not PUBREL packet!");
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return;
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}
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self.packet_identifier = buff_reader.readU16().unwrap();
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self.reason_code = buff_reader.readU8().unwrap();
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self.decode_properties(buff_reader);
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}
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}
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impl<'a> Packet<'a> for PubrelPacket<'a> {
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fn decode(& mut self, buff_reader: & mut BuffReader<'a>) {
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self.decode_puback_packet(buff_reader);
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}
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fn encode(& mut self, buffer: & mut [u8]) {
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}
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} |