initial: implement get method for static files
This commit is contained in:
Arthur Khachaturov
commit
fd57b9ac75
8 changed files with 289 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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__pycache__/
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.venv/
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1
src/html/index.html
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1
src/html/index.html
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Hello, World!
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78
src/lib/constants.sh
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78
src/lib/constants.sh
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# shellcheck disable=SC2034 # for now
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readonly HTTP_PROTOCOL_VERSION="HTTP/1.1"
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readonly HTTP_SERVER_STRING="httb/0.1.0"
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declare -Ar HTTP_METHOD_NAMES=(
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[100]="Continue"
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[101]="Switching Protocols"
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[200]="OK"
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[201]="Created"
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[202]="Accepted"
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[203]="Non-Authoritative Information"
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[204]="No Content"
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[205]="Reset Content"
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[206]="Partial Content"
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[239]="Pratusevic"
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[300]="Multiple Choices"
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[301]="Moved Permanently"
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[302]="Found"
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[303]="See Other"
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[304]="Not Modified"
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[305]="Use Proxy"
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[307]="Temporary Redirect"
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[308]="Permanent Redirect"
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[400]="Bad Request"
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[401]="Unauthorized"
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[402]="Payment Required"
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[403]="Forbidden"
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[404]="Not Found"
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[405]="Method Not Allowed"
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[406]="Not Acceptable"
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[407]="Proxy Authentication Required"
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[408]="Request Timeout"
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[409]="Conflict"
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[410]="Gone"
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[411]="Length Required"
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[412]="Precondition Failed"
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[413]="Content Too Large"
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[414]="URI Too Long"
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[415]="Unsupported Media Type"
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[416]="Range Not Satisfiable"
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[417]="Expectation Failed"
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[418]="I'm a teapot"
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[421]="Misdirected Request"
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[422]="Unprocessable Content"
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[426]="Upgrade Required"
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[500]="Internal Server Error"
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[501]="Not Implemented"
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[502]="Bad Gateway"
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[503]="Service Unavailable"
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[504]="Gateway Timeout"
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[505]="HTTP Version Not Supported"
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)
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declare -Ar HTTP_SUPPORTED_METHODS=(
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[GET]=1
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[HEAD]=1
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[POST]=''
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[PUT]=''
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[DELETE]=''
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[CONNECT]=''
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[OPTIONS]=''
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[TRACE]=''
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)
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http::_status_code_page() {
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cat <<-EOF
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<html>
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<head>
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<title>${1} ${HTTP_METHOD_NAMES["$1"]}</title>
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<body>
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<h1>${1} ${HTTP_METHOD_NAMES["$1"]}</h1>
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<hr>
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<address>Server: ${HTTP_SERVER_STRING}</address>
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</body>
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</html>
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EOF
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}
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5
src/lib/helpers.sh
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src/lib/helpers.sh
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#!/bin/bash
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http::_ramfile() { # TODO use tempdir instead of files
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mktemp -t 'httb-server.XXXXXXXXXXXX' -p "/dev/shm"
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}
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174
src/lib/http_server.sh
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174
src/lib/http_server.sh
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#!/bin/bash
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set -e
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shopt -s globstar extglob dotglob
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# readonly HTTP_SCRIPT_PATH="$(dirname "$(readlink -e "${BASH_SOURCE[0]:-$0}")")"
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# . "${SCRIPT_PATH}/mock_tcp_server.sh"
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# . "${SCRIPT_PATH}/constants.sh"
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. "./lib/constants.sh" && . "./lib/helpers.sh"
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declare -A http__handlers=()
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declare -A http__all_routes=()
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# -- CONFIGURATION --
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http::host() { export HTTP_HOST_NAME="$1"; }
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http::bind() { export HTTP_HOST="${1:-127.0.0.1}"; export HTTP_PORT="${2:-8081}"; }
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http::markdown_base() { export HTTP_MARKDOWN_BASE="$1"; }
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http::static_folder() {
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http__handlers["GET,$1/**"]="http::_static_file"
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http__all_routes["$1/**"]=1
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export HTTP_STATIC_FOLDER="$2";
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}
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# -- PUBLIC METHODS --
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http::route() {
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local _method
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while read -r _method; do
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# temp until all methods are suppoorted
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[[ -z "${HTTP_SUPPORTED_METHODS[${_method}]}" ]] && echo "$1: Method ${_method} not implemented!" >&2 && exit 1
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http__handlers["$_method,$3"]="$1"
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http__all_routes["$3"]=1
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done <<< "${2/ /$'\n'}"
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}
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http::get() { http::route "$1" "GET" "$2"; }
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# -- REQUEST PROCESSING --
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http::_parse_headers() {
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local -n _h=$1 _m=$2 _p=$3 _v=$4
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read -r header_first_
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read -r _m _p _v <<<"$header_first_"
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while read -r header_; do
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[[ -z "${header_/$'\r'/}" ]] && break
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local h_name h_value
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IFS=: read -r h_name h_value <<< "${header_/': '/:}"
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_h["${h_name}"]="${h_value}"
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done
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}
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http::_parse_body() { :; } # TODO
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http::_route_request() {
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[[ -z "${HTTP_SUPPORTED_METHODS[${HTTP_REQUEST_METHOD}]}" ]] && http::response 501 && return 1
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local glob_endpoint handler path_found
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for glob_endpoint in "${!http__all_routes[@]}"; do # FIXME
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# shellcheck disable=SC2053
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if [[ "${HTTP_REQUEST_PATH}" == ${glob_endpoint} ]]; then
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declare -rx HTTP_REQUEST_GLOB="${glob_endpoint}"
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path_found=1
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break
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fi
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done
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handler=${http__handlers["$HTTP_REQUEST_METHOD,$glob_endpoint"]}
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if [[ -z "${path_found}" ]]; then
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http::response 404; return 1
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elif [[ -z "${handler}" ]]; then
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http::response 405; return 1
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else
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${handler}
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fi
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}
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# -- RESPONSE PROCESSING --
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http::_response_base_headers() {
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printf "%s %d %s\n" "${HTTP_PROTOCOL_VERSION}" "$1" "${HTTP_METHOD_NAMES["$1"]}"
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cat <<-EOS
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Server: ${HTTP_SERVER_STRING}
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Connection: close
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Date: $(date -Ru)
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Cache-control: no-cache
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Cache-control: max-age=0
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EOS
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}
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http::_response_content_headers() {
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echo "Content-Length: $(wc -c "$1" | cut -d ' ' -f 1)"
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echo "Content-Type: ${HTTP_RESPONSE_CONTENT_TYPE:="$(file -ib "$1")"}"
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echo
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}
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http::_response_content() {
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local -r content_file="$(http::_ramfile)" # TODO mb adapt to mkfifo pipes
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cat - > "${content_file}"
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http::_response_content_headers "${content_file}"
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cat "${content_file}"
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rm -f "${content_file}"
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}
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http::_static_file() {
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local uri_path="${HTTP_REQUEST_PATH#"${HTTP_REQUEST_GLOB%'**'}"}"
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local filename="${HTTP_STATIC_FOLDER}/${uri_path}"
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[[ -z "${uri_path}" || ! -f "${filename}" ]] && http::response 404 && return 1
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http::file "${filename}"
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}
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http::response() {
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local status_code page
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[[ -n "${HTTP_METHOD_NAMES["$1"]}" ]] && status_code="$1" || status_code="500"
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page="$(http::_status_code_page "${status_code}")"
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http::_response_base_headers "${status_code}"
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http::_response_content <<< "${page}"
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}
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http::file() {
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[[ ! -f "$1" ]] && http::response 500 && return 1
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http::_response_base_headers "200"
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http::_response_content < "$1"
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}
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http::html() { HTTP_RESPONSE_CONTENT_TYPE="text/html" http::file "$@"; }
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http::format_markdown() { :; } # TODO
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# -- COMMAND LINE LOGIC --
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http::_process_request() {
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declare -Ax HTTP_REQUEST_HEADERS
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export HTTP_REQUEST_METHOD HTTP_REQUEST_PATH HTTP_REQUEST_VERSION HTTP_REQUEST_BODY
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http::_parse_headers HTTP_REQUEST_HEADERS HTTP_REQUEST_METHOD HTTP_REQUEST_PATH HTTP_REQUEST_VERSION || return 1
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http::_parse_body HTTP_REQUEST_BODY || return 1
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if [[ -n "${HTTP_HOST_NAME}" && "${HTTP_HOST_NAME}" != "${HTTP_REQUEST_HEADERS["Host"]%:*}" ]]; then
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http::response 404
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return
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fi
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http::_route_request
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return 0
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}
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http::_cmd_help() {
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echo "USAGE:"
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echo " $0 <run|parse> [OPTIONS]"
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echo
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echo "ARGUMENTS:"
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echo " run Run the server"
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echo " parse Parse http request from stdin and output to stdout"
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}
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http::run() {
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if [[ "$1" = "run" ]]; then
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echo "Listening on ${HTTP_HOST}:${HTTP_PORT}"
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socat "TCP-LISTEN:${HTTP_PORT},bind=${HTTP_HOST},fork,reuseport" "EXEC:$(readlink -e "$0") parse"
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elif [[ "$1" = "parse" ]]; then
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http::_process_request
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else
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http::_cmd_help >&2
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exit 1
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fi
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}
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5
src/locust_files/locust.conf
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5
src/locust_files/locust.conf
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autostart=1
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headless=1
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host=http://localhost:8081
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users=1024
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spawn-rate=128
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5
src/locust_files/locustfile.py
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5
src/locust_files/locustfile.py
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from locust import HttpUser, task
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class RootUser(HttpUser):
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@task
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def root(self):
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self.client.get("/")
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19
src/main.sh
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19
src/main.sh
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#!/bin/bash
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# shellcheck disable=SC1090
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. lib/http_server.sh
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. routes/*.sh
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http::static_folder "/static" "./static"
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root() {
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http::html "html/index.html"
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} && http::get root "/"
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main() {
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http::file "./main.sh"
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} && http::route main "GET" '/main'
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http::run "$@"
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