Add hysteria and acme TLS certificate issuer (#18)

* Add hysteria client/server
* Add acme TLS certificate issuer

docs/configuration/outbound/hysteria.md

@@ -0,0 +1,173 @@
+### Structure
+
+```json
+{
+  "outbounds": [
+    {
+      "type": "hysteria",
+      "tag": "hysteria-out",
+      
+      "server": "127.0.0.1",
+      "server_port": 1080,
+
+      "up": "100 Mbps",
+      "up_mbps": 100,
+      "down": "100 Mbps",
+      "down_mbps": 100,
+      "obfs": "fuck me till the daylight",
+      "auth": "",
+      "auth_str": "password",
+      "recv_window_conn": 0,
+      "recv_window": 0,
+      "disable_mtu_discovery": false,
+      "network": "tcp",
+      "tls": {},
+      
+      "detour": "upstream-out",
+      "bind_interface": "en0",
+      "routing_mark": 1234,
+      "reuse_addr": false,
+      "connect_timeout": "5s",
+      "domain_strategy": "prefer_ipv6",
+      "fallback_delay": "300ms"
+    }
+  ]
+}
+```
+
+!!! warning ""
+
+    QUIC, which is required by hysteria is not included by default, see [Installation](/#Installation).
+
+### Hysteria Fields
+
+#### server
+
+==Required==
+
+The server address.
+
+#### server_port
+
+==Required==
+
+The server port.
+
+#### up, down
+
+==Required==
+
+Format: `[Integer] [Unit]` e.g. `100 Mbps, 640 KBps, 2 Gbps`
+
+Supported units (case sensitive, b = bits, B = bytes, 8b=1B):
+
+    bps (bits per second)
+    Bps (bytes per second)
+    Kbps (kilobits per second)
+    KBps (kilobytes per second)
+    Mbps (megabits per second)
+    MBps (megabytes per second)
+    Gbps (gigabits per second)
+    GBps (gigabytes per second)
+    Tbps (terabits per second)
+    TBps (terabytes per second)
+
+#### up_mbps, down_mbps
+
+==Required==
+
+`up, down` in Mbps.
+
+#### obfs
+
+Obfuscated password.
+
+#### auth
+
+Authentication password, in base64.
+
+#### auth_str
+
+Authentication password.
+
+#### recv_window_conn
+
+The QUIC stream-level flow control window for receiving data.
+
+`15728640 (15 MB/s)` will be used if empty.
+
+#### recv_window
+
+The QUIC connection-level flow control window for receiving data.
+
+`67108864 (64 MB/s)` will be used if empty.
+
+#### disable_mtu_discovery
+
+Disables Path MTU Discovery (RFC 8899). Packets will then be at most 1252 (IPv4) / 1232 (IPv6) bytes in size.
+
+Force enabled on for systems other than Linux and Windows (according to upstream).
+
+#### tls
+
+==Required==
+
+TLS configuration, see [TLS inbound structure](/configuration/shared/tls/#inbound-structure).
+
+#### network
+
+Enabled network
+
+One of `tcp` `udp`.
+
+Both is enabled by default.
+
+### Dial Fields
+
+#### detour
+
+The tag of the upstream outbound.
+
+Other dial fields will be ignored when enabled.
+
+#### bind_interface
+
+The network interface to bind to.
+
+#### routing_mark
+
+!!! error ""
+
+    Linux only
+
+The iptables routing mark.
+
+#### reuse_addr
+
+Reuse listener address.
+
+#### connect_timeout
+
+Connect timeout, in golang's Duration format.
+
+A duration string is a possibly signed sequence of
+decimal numbers, each with optional fraction and a unit suffix,
+such as "300ms", "-1.5h" or "2h45m".
+Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".
+
+#### domain_strategy
+
+One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
+
+If set, the server domain name will be resolved to IP before connecting.
+
+`dns.strategy` will be used if empty.
+
+#### fallback_delay
+
+The length of time to wait before spawning a RFC 6555 Fast Fallback connection.
+That is, is the amount of time to wait for IPv6 to succeed before assuming
+that IPv6 is misconfigured and falling back to IPv4 if `prefer_ipv4` is set.
+If zero, a default delay of 300ms is used.
+
+Only take effect when `domain_strategy` is `prefer_ipv4` or `prefer_ipv6`.

docs/configuration/outbound/index.md

@@ -23,6 +23,7 @@
 | `vmess`       | [VMess](./vmess)             |
 | `trojan`      | [Trojan](./trojan)           |
 | `wireguard`   | [Wireguard](./wireguard)     |
+| `hysteria`    | [Hysteria](./hysteria)       |
 | `dns`         | [DNS](./dns)                 |
 | `selector`    | [Selector](./selector)       |