108 lines
3.8 KiB
Rust
108 lines
3.8 KiB
Rust
/*
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* MIT License
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*
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* Copyright (c) [2022] [Ondrej Babec <ond.babec@gmail.com>]
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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use heapless::Vec;
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use crate::encoding::variable_byte_integer::VariableByteIntegerEncoder;
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use crate::packet::mqtt_packet::Packet;
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use crate::utils::buffer_reader::BuffReader;
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use crate::utils::buffer_writer::BuffWriter;
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use super::packet_type::PacketType;
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use super::property::Property;
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pub struct PubrecPacket<'a, const MAX_PROPERTIES: usize> {
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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, const MAX_PROPERTIES: usize> PubrecPacket<'a, MAX_PROPERTIES> {
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pub fn decode_pubrec_packet(&mut self, buff_reader: &mut BuffReader<'a>) {
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if self.decode_fixed_header(buff_reader) != (PacketType::Pubrec).into() {
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log::error!("Packet you are trying to decode is not PUBREC packet!");
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return;
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}
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self.packet_identifier = buff_reader.read_u16().unwrap();
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self.reason_code = buff_reader.read_u8().unwrap();
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self.decode_properties(buff_reader);
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}
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}
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impl<'a, const MAX_PROPERTIES: usize> Packet<'a> for PubrecPacket<'a, MAX_PROPERTIES> {
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fn new() -> Self {
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todo!()
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}
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fn encode(&mut self, buffer: &mut [u8]) -> usize {
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let mut buff_writer = BuffWriter::new(buffer);
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let mut rm_ln = self.property_len;
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let property_len_enc: [u8; 4] =
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VariableByteIntegerEncoder::encode(self.property_len).unwrap();
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let property_len_len = VariableByteIntegerEncoder::len(property_len_enc);
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rm_ln = rm_ln + property_len_len as u32 + 3;
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buff_writer.write_u8(self.fixed_header);
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buff_writer.write_variable_byte_int(rm_ln);
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buff_writer.write_u16(self.packet_identifier);
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buff_writer.write_u8(self.reason_code);
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buff_writer.write_variable_byte_int(self.property_len);
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buff_writer.encode_properties::<MAX_PROPERTIES>(&self.properties);
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return buff_writer.position;
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}
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fn decode(&mut self, buff_reader: &mut BuffReader<'a>) {
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self.decode_pubrec_packet(buff_reader);
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}
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fn set_property_len(&mut self, value: u32) {
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self.property_len = value;
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}
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fn get_property_len(&mut self) -> u32 {
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return self.property_len;
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}
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fn push_to_properties(&mut self, property: Property<'a>) {
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self.properties.push(property);
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}
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fn set_fixed_header(&mut self, header: u8) {
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self.fixed_header = header;
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}
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fn set_remaining_len(&mut self, remaining_len: u32) {
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self.remain_len = remaining_len;
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}
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}
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