de.micromata.genome.tpsb.httpmockup.testbuilder.HttpParser.java Source code

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Here is the source code for de.micromata.genome.tpsb.httpmockup.testbuilder.HttpParser.java

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//
// Copyright (C) 2010-2016 Micromata GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

package de.micromata.genome.tpsb.httpmockup.testbuilder;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;

import de.micromata.genome.tpsb.builder.SimpleTextParser;
import de.micromata.genome.util.types.Pair;

/**
 * Parses a Request/Response from a text
 * 
 * TODO Body als param auswerten wenn Content-Type: application/x-www-form-urlencoded; charset=UTF-8
 * 
 * @author Roger Rene Kommer (r.kommer.extern@micromata.de)
 * 
 */
public class HttpParser extends SimpleTextParser {

    private String method;

    private String url;

    private int mayorVersion = 1;

    private int minorVersion = 1;

    private List<Pair<String, String>> headers = new ArrayList<Pair<String, String>>();

    private String queryString = "";

    private List<Pair<String, String>> parameters = new ArrayList<Pair<String, String>>();

    private String body = "";

    private String getHeader(String name) {
        for (Pair<String, String> p : headers) {
            if (p.getKey().equals(name) == true) {
                return p.getValue();
            }
        }
        return null;
    }

    public HttpParser(String text) {
        super(text);
        parse();
    }

    private void parse() {
        parseMethod();
        parseHeaders();
        skipNl();
        body = rest();
        checkUrlPost();
    }

    private void checkUrlPost() {
        String ct = getHeader("Content-Type");
        if (ct == null) {
            return;
        }
        if (ct.contains("application/x-www-form-urlencoded") == false) {
            return;
        }
        String trimmedbody = StringUtils.trim(body);
        if (trimmedbody.isEmpty() == true) {
            return;
        }
        if (StringUtils.isEmpty(queryString) == false) {
            queryString += "&" + trimmedbody;
        } else {
            queryString = trimmedbody;
        }
    }

    public List<Pair<String, String>> getRequestParameters() {
        List<Pair<String, String>> ret = new ArrayList<Pair<String, String>>();
        if (queryString.length() == 0) {
            return ret;
        }
        String rest = queryString;
        int idx = 0;
        while (idx != -1 && rest.length() > 0) {
            idx = rest.indexOf('&');
            String ps = rest;
            if (idx != -1) {
                ps = rest.substring(0, idx);
                rest = rest.substring(idx + 1);
            }
            int pidx = ps.indexOf('=');
            String value = "";
            if (pidx != -1) {
                value = ps.substring(pidx + 1);
                ps = ps.substring(0, pidx);
            }
            ret.add(Pair.make(ps, value));
        }
        return ret;
    }

    private String splitUrl(String url) {
        int idx = url.indexOf('?');
        if (idx == -1) {
            return url;
        }
        queryString = url.substring(idx + 1);
        url = url.substring(0, idx);
        return url;
    }

    private void parseMethod() {
        // GET /Functional-Testing/getting-started-with-assertions.html HTTP/1.1
        int start = currentIndex();
        skipToWs();
        method = substring(start, currentIndex());
        skipWs();
        start = currentIndex();
        skipToWs();
        url = substring(start, currentIndex());
        url = splitUrl(url);
        skipWs();
        if (startsWith("HTTP") == true) {
            inc(4);
        }
        skipLine();
    }

    private void parseHeaders() {
        while (eof() == false) {
            if (parseHeader() == false) {
                break;
            }
            if (isEmptyLine() == true) {
                break;
            }
        }

    }

    private boolean parseHeader() {
        String key = "";
        int start = currentIndex();
        char nc = skipUntil(':', '\n', '\r');
        if (nc != ':') {
            reset(start);
            return false;
        }

        key = substring(start, currentIndex());
        inc();
        if (key.length() == 0) {
            reset(start);
            return false;
        }
        start = currentIndex();
        skipEndOfLine();
        String value = substring(start, currentIndex());
        headers.add(Pair.make(key, value));
        skipLine();
        return true;
    }

    public String getMethod() {
        return method;
    }

    public void setMethod(String method) {
        this.method = method;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public int getMayorVersion() {
        return mayorVersion;
    }

    public void setMayorVersion(int mayorVersion) {
        this.mayorVersion = mayorVersion;
    }

    public int getMinorVersion() {
        return minorVersion;
    }

    public void setMinorVersion(int minorVersion) {
        this.minorVersion = minorVersion;
    }

    public List<Pair<String, String>> getHeaders() {
        return headers;
    }

    public void setHeaders(List<Pair<String, String>> headers) {
        this.headers = headers;
    }

    public String getBody() {
        return body;
    }

    public void setBody(String body) {
        this.body = body;
    }

}