private byte[] prepareDefaultPage(String message) {
String head =
"<!doctype html><html lang=\"en\"><head><title> Crawler HTML site </title></head>"
+ "<link href=\"css/style.css\" rel=\"stylesheet\" /><body><div class=\"header\"><h1>Crawler</h1></div>";
String form;
if (message != null) {
form =
"<div class=\"crawlerAnswer\"><h2>"
+ message
+ "</h2>"
+ "<a href=\"/\"><h3>Back to homepage</h3></a></div>";
} else if (serverCrawler.isBusy()) {
form = "<div class=\"crawlerAnswer\"><h2>Crawler is already running</h2></div>";
} else {
form =
"<div class=\"crawlerForm\"><form id=\"generalform\" method=\"post\" action=\"execResult.html\" class=\"crawlerFormTable\">"
+ "<table><tr><td><h3>Enter Domain</h3></td><td><input type=\"text\" name=\"Domain\"></td></tr><tr>"
+ "<td><h3><input type=\"checkbox\" name=\"portscan\">Perform full TCP port scan</h3></td></tr><tr>"
+ "<td><h3><input type=\"checkbox\" name=\"robots.txt\">Disrespect robots.txt</h3></td></tr>"
+ "<tr><td></td><td><input type=\"submit\" value=\"Start Crawler\"></td></tr></table></form></div>";
}
String resultPages = prepareResultPagesSection();
String finish = "</body></html>";
String result = head + form + resultPages + finish;
return result.getBytes();
}
private HtmlResponse respond200(HtmlRequest htmlRequest)
throws IOException, InterruptedException {
HtmlResponse response200 = new HtmlResponse();
byte[] bodyInBytes;
if (htmlRequest.type.equals("TRACE")) {
bodyInBytes = htmlRequest.unparsedRequest.getBytes();
} else if (htmlRequest.type.equals("POST")) {
if (htmlRequest.requestedFile.equals("/params_info.html")) {
bodyInBytes = makeTable(htmlRequest.parametersInRequestBody);
} else if (htmlRequest.requestedFile.equals(execResults)) {
System.out.println(
"Parameters for Crawler : " + htmlRequest.parametersInRequestBody.toString());
if (serverCrawler.isBusy()) {
bodyInBytes = prepareDefaultPage("Crawler is busy");
} else {
String crawlerInputCheckResults = checkCrawlerInput(htmlRequest);
if (crawlerInputCheckResults == null) {
bodyInBytes = activateCrawler(htmlRequest);
Thread crawlerThread = new Thread(serverCrawler);
crawlerThread.start();
} else {
bodyInBytes = prepareDefaultPage(crawlerInputCheckResults);
}
}
} else {
bodyInBytes = null;
}
} else {
bodyInBytes = readFileForResponse(htmlRequest);
}
response200.setEntityBody(bodyInBytes);
response200.setStatus(htmlRequest.httpVersion, 200);
String contentType;
if (!htmlRequest.type.equals("POST")) {
contentType = getContentTypeFromFile(htmlRequest.requestedFile);
} else {
contentType = getContentTypeFromFile(htmlRequest.requestedFile);
}
response200.setContentTypeLine(contentType);
return response200;
}