【Rust日报】2020-05-05 - 窥探Zoom, Lambda部署, slip, rust struct
用Rust程序和eBPF来"窥探"Zoom程序的内容。
Zooming in on Observability with Rust and eBPF
网络安全大神Peter Parkanyi用Rust程序和eBPF来"窥探"Zoom程序的内容。 最近Zoom因为新冠病毒而大火一把，而且又因为美国政府担心Zoom的服务器绕中国一圈再回到美国引发安全顾虑又大火一把。这个博文值得关注。
一个可以部署AWSLambda服务的简易webapp
A sample webapp project which deploys on AWS Lambda
一个可以部署AWSLambda服务的简易webapp。因为得到SilentByte的启发：https://silentbyte.com/writing-aws-lambda-functions-in-rust
学习笔记：用Rust来写编译程序
Notes on Parsing in Rust
学习笔记：用Rust来写编译程序。
slip 0.1.0: 保护你程序的错误代码字符串被逆向工程获取。
slip 0.1.0: protect your error strings against reverse-engineering
slip 0.1.0: 保护你程序的错误代码字符串被逆向工程获取。
安装：
cargo install --path unslip
使用，直接产生秘密字符串：
unslip key
系统环境变量设置：
#### Linux
$ export SLIP_KEY=<your key, without quotations>
#### Windows
$ set SLIP_KEY=<your key, without quotations>
Type-level Rust编程
Type-level Programming in Rust
Type-level Rust编程。英文的学习笔记，大家自己欣赏哈～
Github自动编译Rust二进制代码
Github Actions to build Rust Binaries Automatically
https://github.com/zackify/flydb/blob/master/.github/workflows/build-binary.yml
Github自动编译Rust二进制代码的配置文件的一个例子：
name: Build Binaries
on:
release:
types: # This configuration does not affect the page_build event above
- created
jobs:
build_for_mac:
name: MacOS
runs-on: macos-10.15
steps:
- uses: actions/checkout@master
- uses: actions-rs/cargo@v1
with:
command: build
args: --release
- name: Rename binary
run: mv target/release/flydb flydb-macos64
- name: Upload to release
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
curl \
-f \
-sSL \
-XPOST \
-H "Authorization: token $GITHUB_TOKEN" \
-H "Content-Length: $(stat -f%z flydb-macos64)" \
-H "Content-Type: application/octet-stream" \
--upload-file "flydb-macos64" \
"https://uploads.github.com/repos/$GITHUB_REPOSITORY/releases/$(jq --raw-output '.release.id' $GITHUB_EVENT_PATH)/assets?name=flydb-macos64"
build_for_pi:
name: Raspberry Pi
runs-on: ubuntu-18.04
steps:
- uses: actions/checkout@master
- uses: actions-rs/toolchain@v1
with:
toolchain: stable
target: armv7-unknown-linux-gnueabihf
override: true
- uses: actions-rs/cargo@v1
with:
use-cross: true
command: build
args: --release --target armv7-unknown-linux-gnueabihf
- name: Rename binary
run: mv target/armv7-unknown-linux-gnueabihf/release/flydb flydb-armv7-pi
- name: Upload to release
uses: JasonEtco/upload-to-release@d648f1babf776de9cad881320bd9e9818fc3b262
with:
args: flydb-armv7-pi application/octet-stream
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
build_for_android:
name: Android
runs-on: ubuntu-18.04
steps:
- uses: actions/checkout@master
- uses: actions-rs/toolchain@v1
with:
toolchain: stable
target: aarch64-linux-android
override: true
- uses: actions-rs/cargo@v1
with:
use-cross: true
command: build
args: --release --target aarch64-linux-android
- name: Rename binary
run: mv target/aarch64-linux-android/release/flydb flydb-linux-android
- name: Upload to release
uses: JasonEtco/upload-to-release@d648f1babf776de9cad881320bd9e9818fc3b262
with:
args: flydb-linux-android application/octet-stream
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
build_for_linux:
name: Linux
runs-on: ubuntu-18.04
steps:
- uses: actions/checkout@master
- uses: actions-rs/cargo@v1
with:
command: build
args: --release
- name: Rename binary
run: mv target/release/flydb flydb-linux-amd64
- name: Upload to release
uses: JasonEtco/upload-to-release@d648f1babf776de9cad881320bd9e9818fc3b262
with:
args: flydb-linux-amd64 application/octet-stream
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
rust语言学习笔记：理解structs
Understanding rust lang - structs notes
波兰小伙子Kamil Staszewski 的Rust语言学习笔记。
什么是struct：
struct可以让我们创建有内容的数据结构，struct数据结构的写法有点类似Typescript语言中的interface接口，
当然很多别的编程语言的接口的实现也很类似：
struct Player {
name: String,
health: u32,
mana: u32,
}
要实现一个struct我们就要给它创建一个实例，我们依照它的定义用K/V方式给它赋值：
let player1 = Player {
name: String::from("Kamil"),
health: 100,
mana: 100,
};
至此，我们还不能直接用println!宏来打印出来，否则会遇到Player doesn't implement std::fmt::Display: Player cannot be formatted with the default formatte
这样的错误。因为这里struct还没有实现它的trait，这就需要我们参照官方文档自己来实现一个。
我们可以加这样的注释#[derive(Debug)]也可以用缺省的格式:?，或者在println!宏里面用花括号来表示缺省格式。
然后我们可以试一试：
#[derive(Debug)] // annotation
struct Player {
name: String,
health: u32,
mana: u32,
}
let player1 = Player {
name: String::from("Kamil"),
health: 100,
mana: 100,
};
println!("Players data {:?}, player1);
怎么更新数据：
let player1 = Player {
name: String::from("Kamil"),
health: 100,
mana: 100,
};
let player2 = Player {
name: String::from("Gustav"),
..player1
}; // player2 has the same health and mana values as player1
也可以直接给实例的某个键赋值，不过要记得加上mut关键字保证数据结构的实例可以更改：
let mut player1 = Player {
name: String::from("Kamil"),
health: 100,
mana: 100,
};
player1.name = String::from("Some other name");
给数据结构struct添加函数（方法）：
rust语言添加函数非常方便，首先它又一个可以自引用的语法&self，这个跟JS的this和Python的self非常类似。
我们必须用impl关键字并加上数据结构的名字来'实现'实例，记住我们在函数内部用&self来应用数据机构本身：
struct Player {
name: String,
health: u32,
mana: u32,
}
impl Player {
fn multiply_by(&self, n: u32) -> u32 {
self.health * n
}
}
let player1 = Player {
name: String::from("Kamil"),
health: 100,
mana: 100,
};
println!("Players multipied health {:?}", player1.multiply_by(3));
作者的GitHub：https://www.github.com/staszewski
From 日报小组 BobQ
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