Enum HttpMethod 

pub enum HttpMethod {
    Get,
    Post,
    Put,
    Patch,
    Delete,
    Head,
    Options,
    Trace,
    Connect,
    Other,
    All,
    Safe,
    Unsafe,
}

HTTP 操作方法枚举。

ValueEnum 用于 clap 集成，使其可以在命令行参数中使用。

Variants

Get

Post

Put

Patch

Delete

Head

Options

Trace

Connect

Other

代表非标准的 HTTP 方法。

All

代表所有 HTTP 方法，通常用于管理员权限。

Safe

代表所有安全的 HTTP 方法，你可以参看 HttpMethod::safe 获取 安全 一词的含义

Unsafe

代表所有不安全的 HTTP 方法，你可以参看 HttpMethod::safe 获取 安全 一词的含义

Implementations

impl HttpMethod

pub fn safe(self) -> bool

判断一个方法是否安全

根据 MDN 以及 rfc7231 对于安全的定义

一个方法是否安全取决于该方法的请求在被服务器响应后，服务器的状态是否改变

或者说一个方法安不安全取决于是否蕴含着写入请求

所以，对于 OPTIONS 这类在通常认知中 会造成服务器信息暴露等问题的方法，仍然认为是安全的

• 如果一个方法是只读的，如 HEAD，GET 等，那他就是安全的
• 如果一个方法有写入的含义，如 PUT，DELETE 等，那么就不安全

同时，在这里，由于有两个例外：HttpMethod::Other 和 HttpMethod::All 这两个标记

它们两个一个代表其他请求（rfc规范之外的），一个代表所有的请求，包括 rfc 规范之外的，所以都视为不安全

pub fn as_str(self) -> &'static str

Trait Implementations

impl Clone for HttpMethod

fn clone(&self) -> HttpMethod

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for HttpMethod

impl Debug for HttpMethod

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HttpMethod

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HttpMethod

impl From<&Method> for HttpMethod

fn from(value: &Method) -> Self

Converts to this type from the input type.

impl From<Method> for HttpMethod

fn from(value: Method) -> Self

Converts to this type from the input type.

impl Hash for HttpMethod

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for HttpMethod

fn eq(&self, other: &HttpMethod) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for HttpMethod

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HttpMethod

impl ValueEnum for HttpMethod

fn value_variants<'a>() -> &'a [Self]

All possible argument values, in display order.

fn to_possible_value<'a>(&self) -> Option<PossibleValue>

The canonical argument value.

fn from_str(input: &str, ignore_case: bool) -> Result<Self, String>

Parse an argument into Self.