代理端口问题

zsh配置1

• zsh配置: .zshrc

bash

# ===== 配置代理端口 =====
export PROXY_PORT="1087" # 可覆盖默认的代理端口
source ~/.zsh_auto_proxy

• ~/.zsh_auto_proxy

bash

# ~/.zsh_auto_proxy

PROXY_HOST="${PROXY_HOST:-127.0.0.1}"
PROXY_PORT="${PROXY_PORT:-1087}"
PROXY_TEST_URL="${PROXY_TEST_URL:-https://example.com}"

# 通过代理访问测试地址
# 检测的作用是：确认“代理端口不仅存在，而且能真正通过代理访问外部网络”。
_proxy_available() {
  env -u HTTP_PROXY -u HTTPS_PROXY -u ALL_PROXY \
      -u http_proxy -u https_proxy -u all_proxy \
    curl -fsS \
      --proxy "http://${PROXY_HOST}:${PROXY_PORT}" \
      --connect-timeout 2 \
      --max-time 5 \
      "$PROXY_TEST_URL" \
      -o /dev/null
}

auto_proxy() {
  if _proxy_available; then
    export HTTP_PROXY="http://${PROXY_HOST}:${PROXY_PORT}"
    export HTTPS_PROXY="http://${PROXY_HOST}:${PROXY_PORT}"
    export http_proxy="$HTTP_PROXY"
    export https_proxy="$HTTPS_PROXY"
    export NO_PROXY="localhost,127.0.0.1"
    export no_proxy="$NO_PROXY"
    export NODE_USE_ENV_PROXY=1
  else
    unset HTTP_PROXY HTTPS_PROXY ALL_PROXY
    unset http_proxy https_proxy all_proxy
    unset NO_PROXY no_proxy NODE_USE_ENV_PROXY
  fi
}

autoload -Uz add-zsh-hook
add-zsh-hook precmd auto_proxy
auto_proxy

zsh配置2

bash

PROXY_HOST="${PROXY_HOST:-127.0.0.1}"
PROXY_PORT="${PROXY_PORT:-1087}"

# 只检查本地代理端口是否启动
_proxy_available() {
  nc -z "${PROXY_HOST}" "${PROXY_PORT}" >/dev/null 2>&1
}

proxy_on() {
  export HTTP_PROXY="http://${PROXY_HOST}:${PROXY_PORT}"
  export HTTPS_PROXY="http://${PROXY_HOST}:${PROXY_PORT}"

  export http_proxy="$HTTP_PROXY"
  export https_proxy="$HTTPS_PROXY"

  export NO_PROXY="localhost,127.0.0.1,::1"
  export no_proxy="$NO_PROXY"

  export NODE_USE_ENV_PROXY=1
}

proxy_off() {
  unset HTTP_PROXY HTTPS_PROXY ALL_PROXY
  unset http_proxy https_proxy all_proxy
  unset NO_PROXY no_proxy
  unset NODE_USE_ENV_PROXY
}

proxy_refresh() {
  if _proxy_available; then
    proxy_on
  else
    proxy_off
  fi
}

# shell 启动时检测一次
proxy_refresh