49 lines
937 B
Plaintext
49 lines
937 B
Plaintext
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#!/bin/bash
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# Usage check
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if [ $# -ne 1 ]; then
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echo "Usage: $0 <URL>"
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exit 1
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fi
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# Extract the protocol, hostname, port, and path from the URL
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url=$1
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protocol="${url%%://*}"
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host_port="${url#*://}"
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host="${host_port%%/*}"
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path="/${host_port#*/}"
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port=80
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# Check if the protocol is HTTP
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if [ "$protocol" != "http" ]; then
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echo "Only HTTP protocol is supported."
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exit 1
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fi
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# Check if a port is specified
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if [[ $host == *:* ]]; then
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IFS=':' read -ra ADDR <<< "$host"
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host=${ADDR[0]}
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port=${ADDR[1]}
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fi
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# Open connection to the host
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exec 3<>/dev/tcp/$host/$port
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# Send HTTP GET request
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echo -e "GET $path HTTP/1.1\r\nHost: $host\r\nConnection: close\r\n\r\n" >&3
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# Read the response and output the file content
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{
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# Skip HTTP headers
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while IFS= read -r line; do
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[[ $line == $'\r' ]] && break
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done
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# Output the body (file content)
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cat >&1
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} <&3
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# Close the connection
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exec 3<&-
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