server/lib/plankton/http/logic-impl.js (99941cf) - fs-words.git · git.schokokeks.org

[upd] server:lib:plankton

Christian Fraß commited 99941cf at 2021-03-12 00:46:54

logic-impl.js

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/*
This file is part of »bacterio-plankton:http«.

Copyright 2016-2021 'Christian Fraß, Christian Neubauer, Martin Springwald GbR'
<info@greenscale.de>

»bacterio-plankton:http« is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

»bacterio-plankton:http« is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with »bacterio-plankton:http«. If not, see <http://www.gnu.org/licenses/>.
 */
var lib_http;
(function (lib_http) {
    /**
     * @author fenris <frass@greenscale.de>
     */
    let enum_method;
    (function (enum_method) {
        enum_method["get"] = "get";
        enum_method["post"] = "post";
        enum_method["options"] = "options";
        // put = "put",
        // delete = "delete",
        // head = "head",
    })(enum_method = lib_http.enum_method || (lib_http.enum_method = {}));
})(lib_http || (lib_http = {}));
/*
This file is part of »bacterio-plankton:http«.

Copyright 2016-2021 'Christian Fraß, Christian Neubauer, Martin Springwald GbR'
<info@greenscale.de>

»bacterio-plankton:http« is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

»bacterio-plankton:http« is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with »bacterio-plankton:http«. If not, see <http://www.gnu.org/licenses/>.
 */
var lib_http;
(function (lib_http) {
    /**
     * @author fenris <frass@greenscale.de>
     */
    const linebreak = "\r\n";
    /**
     * @author fenris <frass@greenscale.de>
     */
    function encode_method(method) {
        switch (method) {
            case lib_http.enum_method.get: return "GET";
            case lib_http.enum_method.post: return "POST";
            case lib_http.enum_method.options: return "OPTIONS";
            default: throw (new Error("impossible"));
        }
    }
    /**
     * @author fenris <frass@greenscale.de>
     */
    function decode_method(method_raw) {
        switch (method_raw) {
            case "GET": return lib_http.enum_method.get;
            case "POST": return lib_http.enum_method.post;
            case "OPTIONS": return lib_http.enum_method.options;
            default: throw (new Error("unhandled method: " + method_raw));
        }
    }
    /**
     * @author fenris <frass@greenscale.de>
     */
    function get_statustext(statuscode) {
        switch (statuscode) {
            case 100: return "Continue";
            case 101: return "Switching Protocols";
            case 103: return "Early Hints";
            case 200: return "OK";
            case 201: return "Created";
            case 202: return "Accepted";
            case 203: return "Non-Authoritative Information";
            case 204: return "No Content";
            case 205: return "Reset Content";
            case 206: return "Partial Content";
            case 300: return "Multiple Choices";
            case 301: return "Moved Permanently";
            case 302: return "Found";
            case 303: return "See Other";
            case 304: return "Not Modified";
            case 307: return "Temporary Redirect";
            case 308: return "Permanent Redirect";
            case 400: return "Bad Request";
            case 401: return "Unauthorized";
            case 402: return "Payment Required";
            case 403: return "Forbidden";
            case 404: return "Not Found";
            case 405: return "Method Not Allowed";
            case 406: return "Not Acceptable";
            case 407: return "Proxy Authentication Required";
            case 408: return "Request Timeout";
            case 409: return "Conflict";
            case 410: return "Gone";
            case 411: return "Length Required";
            case 412: return "Precondition Failed";
            case 413: return "Payload Too Large";
            case 414: return "URI Too Long";
            case 415: return "Unsupported Media Type";
            case 416: return "Range Not Satisfiable";
            case 417: return "Expectation Failed";
            case 418: return "I'm a teapot";
            case 422: return "Unprocessable Entity";
            case 425: return "Too Early";
            case 426: return "Upgrade Required";
            case 428: return "Precondition Required";
            case 429: return "Too Many Requests";
            case 431: return "Request Header Fields Too Large";
            case 451: return "Unavailable For Legal Reasons";
            case 500: return "Internal Server Error";
            case 501: return "Not Implemented";
            case 502: return "Bad Gateway";
            case 503: return "Service Unavailable";
            case 504: return "Gateway Timeout";
            case 505: return "HTTP Version Not Supported";
            case 506: return "Variant Also Negotiates";
            case 507: return "Insufficient Storage";
            case 508: return "Loop Detected";
            case 510: return "Not Extended";
            case 511: return "Network Authentication";
            default: throw (new Error("unhandled statuscode: " + statuscode.toFixed(0)));
        }
    }
    /**
     * @author fenris <frass@greenscale.de>
     */
    function encode_request(request) {
        let request_raw = "";
        request_raw += (encode_method(request.method) + " " + request.query + " " + "HTTP/1.1" + linebreak);
        request_raw += ("Host: " + request.host + linebreak);
        for (const [key, value] of Object.entries(request.headers)) {
            request_raw += (key + ": " + value + linebreak);
        }
        request_raw += linebreak;
        request_raw += request.body;
        return request_raw;
    }
    lib_http.encode_request = encode_request;
    /**
     * @author fenris <frass@greenscale.de>
     */
    function decode_request(request_raw) {
        const lines = request_raw.split(linebreak);
        const first = lines.shift();
        const [method_raw, query, version] = first.split(" ");
        let headers = {};
        while (true) {
            const line = lines.shift();
            if (line === "") {
                break;
            }
            else {
                const [key, value] = line.split(": ", 2);
                headers[key] = value;
            }
        }
        const body = lines.join(linebreak);
        const request = {
            "host": headers["Host"],
            "query": query,
            "method": decode_method(method_raw),
            "headers": headers,
            "body": body,
        };
        return request;
    }
    lib_http.decode_request = decode_request;
    /**
     * @author fenris <frass@greenscale.de>
     */
    function encode_response(response) {
        let response_raw = "";
        response_raw += ("HTTP/1.1" + " " + response.statuscode + " " + get_statustext(response.statuscode) + linebreak);
        for (const [key, value] of Object.entries(response.headers)) {
            response_raw += (key + ": " + value + linebreak);
        }
        response_raw += linebreak;
        response_raw += response.body;
        return response_raw;
    }
    lib_http.encode_response = encode_response;
    /**
     * @author fenris <frass@greenscale.de>
     */
    function decode_response(response_raw) {
        const lines = response_raw.split(linebreak);
        const first = lines.shift();
        const statuscode = parseInt(first.split(" ")[1]);
        let headers = {};
        while (true) {
            const line = lines.shift();
            if (line === "") {
                break;
            }
            else {
                const [key, value] = line.split(": ", 2);
                headers[key] = value;
            }
        }
        const body = lines.join(linebreak);
        const response = {
            "statuscode": statuscode,
            "headers": headers,
            "body": body,
        };
        return response;
    }
    lib_http.decode_response = decode_response;
})(lib_http || (lib_http = {}));