commit 4d21b4705e50f255b1a686f1108a9972bdf72a86 Author: Alexander-D-Karpov Date: Tue Sep 17 02:12:25 2024 +0300 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f3c9ea5 --- /dev/null +++ b/.gitignore @@ -0,0 +1,32 @@ +.idea/ +*.log + +### IntelliJ IDEA ### +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### Eclipse ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ + +### Mac OS ### +.DS_Store \ No newline at end of file diff --git a/.httpd.conf b/.httpd.conf new file mode 100644 index 0000000..706e4b4 --- /dev/null +++ b/.httpd.conf @@ -0,0 +1,416 @@ +# +# This is the main Apache HTTP server configuration file. It contains the +# configuration directives that give the server its instructions. +# See for detailed information. +# In particular, see +# +# for a discussion of each configuration directive. +# +# Do NOT simply read the instructions in here without understanding +# what they do. They're here only as hints or reminders. If you are unsure +# consult the online docs. You have been warned. +# +# Configuration and logfile names: If the filenames you specify for many +# of the server's control files begin with "/" (or "drive:/" for Win32), the +# server will use that explicit path. If the filenames do *not* begin +# with "/", the value of ServerRoot is prepended -- so "logs/access_log" +# with ServerRoot set to "/usr/local/apache2" will be interpreted by the +# server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log" +# will be interpreted as '/logs/access_log'. + +# +# ServerRoot: The top of the directory tree under which the server's +# configuration, error, and log files are kept. +# +# Do not add a slash at the end of the directory path. If you point +# ServerRoot at a non-local disk, be sure to specify a local disk on the +# Mutex directive, if file-based mutexes are used. If you wish to share the +# same ServerRoot for multiple httpd daemons, you will need to change at +# least PidFile. +# +ServerRoot "/etc/httpd" + +# +# Dynamic Shared Object (DSO) Support +# +# To be able to use the functionality of a module which was built as a DSO you +# have to place corresponding `LoadModule' lines at this location so the +# directives contained in it are actually available _before_ they are used. +# Statically compiled modules (those listed by `httpd -l') do not need +# to be loaded here. +# +# Example: +# LoadModule foo_module modules/mod_foo.so +LoadModule mpm_prefork_module /usr/lib/httpd/modules/mod_mpm_prefork.so +LoadModule unixd_module /usr/lib/httpd/modules/mod_unixd.so +LoadModule authz_core_module /usr/lib/httpd/modules/mod_authz_core.so +LoadModule authz_host_module /usr/lib/httpd/modules/mod_authz_host.so +LoadModule authz_user_module /usr/lib/httpd/modules/mod_authz_user.so +LoadModule alias_module /usr/lib/httpd/modules/mod_alias.so +LoadModule dir_module /usr/lib/httpd/modules/mod_dir.so +LoadModule mime_module /usr/lib/httpd/modules/mod_mime.so +LoadModule log_config_module /usr/lib/httpd/modules/mod_log_config.so +LoadModule headers_module /usr/lib/httpd/modules/mod_headers.so +LoadModule setenvif_module /usr/lib/httpd/modules/mod_setenvif.so +LoadModule cgi_module /usr/lib/httpd/modules/mod_cgi.so +LoadModule proxy_module /usr/lib/httpd/modules/mod_proxy.so +LoadModule proxy_fcgi_module /usr/lib/httpd/modules/mod_proxy_fcgi.so + + + +# Third party modules +#IncludeOptional etc/apache24/modules.d/[0-9][0-9][0-9]_*.conf + + +# +# If you wish httpd to run as a different user or group, you must run +# httpd as root initially and it will switch. +# +# User/Group: The name (or #number) of the user/group to run httpd as. +# It is usually good practice to create a dedicated user and group for +# running httpd, as with most system services. +# +User sanspie +Group sanspie + + + +# 'Main' server configuration +# +# The directives in this section set up the values used by the 'main' +# server, which responds to any requests that aren't handled by a +# definition. These values also provide defaults for +# any containers you may define later in the file. +# +# All of these directives may appear inside containers, +# in which case these default settings will be overridden for the +# virtual host being defined. +# + +# +# ServerAdmin: Your address, where problems with the server should be +# e-mailed. This address appears on some server-generated pages, such +# as error documents. e.g. admin@your-domain.com +# +ServerAdmin you@example.com + +# +# ServerName gives the name and port that the server uses to identify itself. +# This can often be determined automatically, but we recommend you specify +# it explicitly to prevent problems during startup. +# +# If your host doesn't have a registered DNS name, enter its IP address here. +# +ServerName localhost + +# +# Deny access to the entirety of your server's filesystem. You must +# explicitly permit access to web content directories in other +# blocks below. +# + + AllowOverride none + Require all denied + + +# +# Note that from this point forward you must specifically allow +# particular features to be enabled - so if something's not working as +# you might expect, make sure that you have specifically enabled it +# below. +# + +# +# DocumentRoot: The directory out of which you will serve your +# documents. By default, all requests are taken from this directory, but +# symbolic links and aliases may be used to point to other locations. + +# +# DirectoryIndex: sets the file that Apache will serve if a directory +# is requested. +# + + DirectoryIndex app.jar index.html + + +# +# The following lines prevent .htaccess and .htpasswd files from being +# viewed by Web clients. +# + + Require all denied + + +# +# LogLevel: Control the number of messages logged to the error_log. +# Possible values include: debug, info, notice, warn, error, crit, +# alert, emerg. +# +LogLevel warn + + + # + # The following directives define some format nicknames for use with + # a CustomLog directive (see below). + # + LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined + LogFormat "%h %l %u %t \"%r\" %>s %b" common + + + # You need to enable mod_logio.c to use %I and %O + LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio + + + # + # The location and format of the access logfile (Common Logfile Format). + # If you do not define any access logfiles within a + # container, they will be logged here. Contrariwise, if you *do* + # define per- access logfiles, transactions will be + # logged therein and *not* in this file. + # + #CustomLog "/var/log/httpd/access.log" combined + CustomLog "/home/sanspie/Projects/web-1/web/access.log" combined + + # + # If you prefer a logfile with access, agent, and referer information + # (Combined Logfile Format) you can use the following directive. + # + #CustomLog "/var/log/httpd-access.log" combined + + + + # + # Redirect: Allows you to tell clients about documents that used to + # exist in your server's namespace, but do not anymore. The client + # will make a new request for the document at its new location. + # Example: + # Redirect permanent /foo http://www.example.com/bar + + # + # Alias: Maps web paths into filesystem paths and is used to + # access content that does not live under the DocumentRoot. + # Example: + # Alias /webpath /full/filesystem/path + # + # If you include a trailing / on /webpath then the server will + # require it to be present in the URL. You will also likely + # need to provide a section to allow access to + # the filesystem path. + + # + # ScriptAlias: This controls which directories contain server scripts. + # ScriptAliases are essentially the same as Aliases, except that + # documents in the target directory are treated as applications and + # run by the server when requested rather than as documents sent to the + # client. The same rules about trailing "/" apply to ScriptAlias + # directives as to Alias. + # + ScriptAlias /cgi-bin/ "/usr/local/www/apache24/cgi-bin/" + + + + + # + # ScriptSock: On threaded servers, designate the path to the UNIX + # socket used to communicate with the CGI daemon of mod_cgid. + # + #Scriptsock cgisock + + +# +# "/usr/local/www/apache24/cgi-bin" should be changed to whatever your ScriptAliased +# CGI directory exists, if you have that configured. +# + + AllowOverride None + Options None + Require all granted + + + + # + # Avoid passing HTTP_PROXY environment to CGI's on this or any proxied + # backend servers which have lingering "httpoxy" defects. + # 'Proxy' request header is undefined by the IETF, not listed by IANA + # + RequestHeader unset Proxy early + + + + # + # TypesConfig points to the file containing the list of mappings from + # filename extension to MIME-type. + # + TypesConfig /etc/mime.types + + + # + # AddType allows you to add to or override the MIME configuration + # file specified in TypesConfig for specific file types. + # + #AddType application/x-gzip .tgz + # + # AddEncoding allows you to have certain browsers uncompress + # information on the fly. Note: Not all browsers support this. + # + #AddEncoding x-compress .Z + #AddEncoding x-gzip .gz .tgz + # + # If the AddEncoding directives above are commented-out, then you + # probably should define those extensions to indicate media types: + # + AddType application/x-compress .Z + AddType application/x-gzip .gz .tgz + + # + # AddHandler allows you to map certain file extensions to "handlers": + # actions unrelated to filetype. These can be either built into the server + # or added with the Action directive (see below) + # + # To use CGI scripts outside of ScriptAliased directories: + # (You will also need to add "ExecCGI" to the "Options" directive.) + # + #AddHandler cgi-script .cgi + + # For type maps (negotiated resources): + #AddHandler type-map var + + # + # Filters allow you to process content before it is sent to the client. + # + # To parse .shtml files for server-side includes (SSI): + # (You will also need to add "Includes" to the "Options" directive.) + # + #AddType text/html .shtml + #AddOutputFilter INCLUDES .shtml + + +# +# The mod_mime_magic module allows the server to use various hints from the +# contents of the file itself to determine its type. The MIMEMagicFile +# directive tells the module where the hint definitions are located. +# +#MIMEMagicFile etc/apache24/magic + +# +# Customizable error responses come in three flavors: +# 1) plain text 2) local redirects 3) external redirects +# +# Some examples: +#ErrorDocument 500 "The server made a boo boo." +#ErrorDocument 404 /missing.html +#ErrorDocument 404 "/cgi-bin/missing_handler.pl" +#ErrorDocument 402 http://www.example.com/subscription_info.html +# + +# +# MaxRanges: Maximum number of Ranges in a request before +# returning the entire resource, or one of the special +# values 'default', 'none' or 'unlimited'. +# Default setting is to accept 200 Ranges. +#MaxRanges unlimited + +# +# EnableMMAP and EnableSendfile: On systems that support it, +# memory-mapping or the sendfile syscall may be used to deliver +# files. This usually improves server performance, but must +# be turned off when serving from networked-mounted +# filesystems or if support for these functions is otherwise +# broken on your system. +# Defaults: EnableMMAP On, EnableSendfile Off +# +#EnableMMAP off +#EnableSendfile on + +# Supplemental configuration +# +# The configuration files in the etc/apache24/extra/ directory can be +# included to add extra features or to modify the default configuration of +# the server, or you may simply copy their contents here and change as +# necessary. + +# Server-pool management (MPM specific) +#Include etc/apache24/extra/httpd-mpm.conf + +# Multi-language error messages +#Include etc/apache24/extra/httpd-multilang-errordoc.conf + +# Fancy directory listings +#Include etc/apache24/extra/httpd-autoindex.conf + +# Language settings +#Include etc/apache24/extra/httpd-languages.conf + +# User home directories +#Include etc/apache24/extra/httpd-userdir.conf + +# Real-time info on requests and configuration +#Include etc/apache24/extra/httpd-info.conf + +# Virtual hosts +#Include etc/apache24/extra/httpd-vhosts.conf + +# Local access to the Apache HTTP Server Manual +#Include etc/apache24/extra/httpd-manual.conf + +# Distributed authoring and versioning (WebDAV) +#Include etc/apache24/extra/httpd-dav.conf + +# Various default settings +#Include etc/apache24/extra/httpd-default.conf + +# Configure mod_proxy_html to understand HTML4/XHTML1 + +Include etc/apache24/extra/proxy-html.conf + + +# Secure (SSL/TLS) connections +#Include etc/apache24/extra/httpd-ssl.conf +# +# Note: The following must must be present to support +# starting without SSL on platforms with no /dev/random equivalent +# but a statically compiled-in mod_ssl. +# + +SSLRandomSeed startup builtin +SSLRandomSeed connect builtin + + +AcceptFilter http none +AcceptFilter https none + +# Custom settings + +Listen 22828 + +ErrorLog "/home/sanspie/Projects/web-1/web/error.log" +PidFile "/home/sanspie/Projects/web-1/web/httpd.pid" + +Mutex default:/home/sanspie/Projects/web-1/web + + + ServerName localhost + DocumentRoot "/home/sanspie/Projects/web-1/web" + + + Options +Indexes + AllowOverride None + Require all granted + + + # Remove or comment out the old FastCGI directives + # ScriptAlias /fcgi-bin/ /home/sanspie/Projects/web-1/out/artifacts/web_1_jar/ + # + # SetHandler fastcgi-script + # Options +ExecCGI + # Require all granted + # + # FastCgiExternalServer /home/sanspie/Projects/web-1/out/artifacts/web_1_jar/web-1.jar -host localhost:22829 + + # Add ProxyPassMatch directive to handle FastCGI + ProxyPassMatch ^/fcgi-bin/(.*)$ fcgi://localhost:22829/home/sanspie/Projects/web-1/out/artifacts/web_1_jar/$1 + + # Ensure logging is set up + ErrorLog "/home/sanspie/Projects/web-1/web/error.log" + CustomLog "/home/sanspie/Projects/web-1/web/access.log" combined + diff --git a/README.md b/README.md new file mode 100644 index 0000000..d5489f4 --- /dev/null +++ b/README.md @@ -0,0 +1,45 @@ + + +Внимание! У разных вариантов разный текст задания! + +Разработать FastCGI сервер на языке Java, определяющий попадание точки на координатной плоскости в заданную область, и создать HTML-страницу, которая формирует данные для отправки их на обработку этому серверу. + +Параметр R и координаты точки должны передаваться серверу посредством HTTP-запроса. Сервер должен выполнять валидацию данных и возвращать HTML-страницу с таблицей, содержащей полученные параметры и результат вычислений - факт попадания или непопадания точки в область (допускается в ответе сервера возвращать json строку, вместо html-страницы). Предыдущие результаты должны сохраняться между запросами и отображаться в таблице. + +Кроме того, ответ должен содержать данные о текущем времени и времени работы скрипта. +Комментарии по выполнению ЛР: + + Требуется поднять Apache httpd веб-сервер от лица своего пользователя на гелиосе (шаблон файла конфигурации доступен для скачивания наверху страницы) + Веб-сервер должен заниматься обслуживанием статического контента (html, css, js) и перенаправлять запросы за динамическим контентом к FastCGI серверу + FastCGI сервер требуется реализовать на языке Java (полезная библиотека в помощь в виде jar архива доступна для скачивания наверху страницы) и поднять также на гелиосе + Путем обращений из JavaScript к FastCGI серверу требуется показать понимание принципа AJAX + +Разработанная HTML-страница должна удовлетворять следующим требованиям: + + Для расположения текстовых и графических элементов необходимо использовать блочную верстку. + Данные формы должны передаваться на обработку посредством GET-запроса. + Таблицы стилей должны располагаться в самом веб-документе. + При работе с CSS должно быть продемонстрировано использование селекторов элементов, селекторов атрибутов, селекторов классов, селекторов идентификаторов а также такие свойства стилей CSS, как наследование и каскадирование. + HTML-страница должна иметь "шапку", содержащую ФИО студента, номер группы и новер варианта. При оформлении шапки необходимо явным образом задать шрифт (fantasy), его цвет и размер в каскадной таблице стилей. + Отступы элементов ввода должны задаваться в процентах. + Страница должна содержать сценарий на языке JavaScript, осуществляющий валидацию значений, вводимых пользователем в поля формы. Любые некорректные значения (например, буквы в координатах точки или отрицательный радиус) должны блокироваться. + +![](https://new.akarpov.ru/media/files/sanspie/yrnoR/areas.png) + +Вопросы к защите лабораторной работы: + + Протокол HTTP. Структура запросов и ответов, методы запросов, коды ответов сервера, заголовки запросов и ответов. + Язык разметки HTML. Особенности, основные теги и атрибуты тегов. + Структура HTML-страницы. Объектная модель документа (DOM). + HTML-формы. Задание метода HTTP-запроса. Правила размещения форм на страницах, виды полей ввода. + Каскадные таблицы стилей (CSS). Структура - правила, селекторы. Виды селекторов, особенности их применения. Приоритеты правил. Преимущества CSS перед непосредственным заданием стилей через атрибуты тегов. + LESS, Sass, SCSS. Ключевые особенности, сравнительные характеристики. Совместимость с браузерами, трансляция в "обычный" CSS. + Клиентские сценарии. Особенности, сферы применения. Язык JavaScript. + Версии ECMAScript, новые возможности ES6 и ES7. + Синхронная и асинхронная обработка HTTP-запросов. AJAX. + Библиотека jQuery. Назначение, основные API. Использование для реализации AJAX и работы с DOM. + Реализация AJAX с помощью SuperAgent. + Серверные сценарии. CGI - определение, назначение, ключевые особенности. + FastCGI - особенности технологии, преимущества и недостатки относительно CGI. + FastCGI сервер на языке Java. + diff --git a/bin/web-1.jar b/bin/web-1.jar new file mode 100644 index 0000000..1272690 Binary files /dev/null and b/bin/web-1.jar differ diff --git a/httpd.conf b/httpd.conf new file mode 100644 index 0000000..8608fa9 --- /dev/null +++ b/httpd.conf @@ -0,0 +1,113 @@ +ServerRoot "/usr/local" + +LoadModule authn_file_module libexec/apache24/mod_authn_file.so +LoadModule authn_core_module libexec/apache24/mod_authn_core.so +LoadModule authz_host_module libexec/apache24/mod_authz_host.so +LoadModule authz_groupfile_module libexec/apache24/mod_authz_groupfile.so +LoadModule authz_user_module libexec/apache24/mod_authz_user.so +LoadModule authz_core_module libexec/apache24/mod_authz_core.so +LoadModule access_compat_module libexec/apache24/mod_access_compat.so +LoadModule auth_basic_module libexec/apache24/mod_auth_basic.so +LoadModule reqtimeout_module libexec/apache24/mod_reqtimeout.so +LoadModule filter_module libexec/apache24/mod_filter.so +LoadModule mime_module libexec/apache24/mod_mime.so +LoadModule log_config_module libexec/apache24/mod_log_config.so +LoadModule env_module libexec/apache24/mod_env.so +LoadModule headers_module libexec/apache24/mod_headers.so +LoadModule setenvif_module libexec/apache24/mod_setenvif.so +LoadModule version_module libexec/apache24/mod_version.so +LoadModule ssl_module libexec/apache24/mod_ssl.so +LoadModule unixd_module libexec/apache24/mod_unixd.so +LoadModule status_module libexec/apache24/mod_status.so +LoadModule autoindex_module libexec/apache24/mod_autoindex.so +LoadModule dir_module libexec/apache24/mod_dir.so +LoadModule alias_module libexec/apache24/mod_alias.so +LoadModule fastcgi_module libexec/apache24/mod_fastcgi.so + + +User www +Group www + + +ServerAdmin you@example.com +ServerName localhost:38141 + + + AllowOverride none + Require all denied + + +DocumentRoot "/path/to/your/web-1/web" + + Options Indexes FollowSymLinks + AllowOverride None + Require all granted + + + + DirectoryIndex index.html + + + + Require all denied + + +ErrorLog "/path/to/your/web-1/error.log" +LogLevel warn + + + LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined + LogFormat "%h %l %u %t \"%r\" %>s %b" common + + LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio + + CustomLog "/path/to/your/web-1/access.log" combined + + + + ScriptAlias /cgi-bin/ "/usr/local/www/apache24/cgi-bin/" + + + + TypesConfig etc/apache24/mime.types + AddType application/x-compress .Z + AddType application/x-gzip .gz .tgz + + + + Include etc/apache24/extra/proxy-html.conf + + + + SSLRandomSeed startup builtin + SSLRandomSeed connect builtin + + +Include etc/apache24/extra/httpd-vhosts.conf + +Listen 38141 + +PidFile "/path/to/your/web-1/httpd.pid" + +Mutex default:/path/to/your/web-1/mutex-dir/ + + + ServerName localhost + DocumentRoot /path/to/your/web-1/web + Alias /index "/path/to/your/web-1/web" + + Options +Indexes + AllowOverride None + Require all granted + + + ScriptAlias /fcgi-bin/ /path/to/your/web-1/out/artifacts/web_1_jar/ + + + SetHandler fastcgi-script + Options +ExecCGI + Require all granted + + + FastCgiExternalServer /path/to/your/web-1/out/artifacts/web_1_jar/app.jar -host localhost:35473 + \ No newline at end of file diff --git a/lib/fastcgi-lib.jar b/lib/fastcgi-lib.jar new file mode 100644 index 0000000..1f35370 Binary files /dev/null and b/lib/fastcgi-lib.jar differ diff --git a/src/main/java/Checker.class b/src/main/java/Checker.class new file mode 100644 index 0000000..38948b8 Binary files /dev/null and b/src/main/java/Checker.class differ diff --git a/src/main/java/Checker.java b/src/main/java/Checker.java new file mode 100644 index 0000000..8adf626 --- /dev/null +++ b/src/main/java/Checker.java @@ -0,0 +1,20 @@ +public class Checker { + public static boolean hit(int x, float y, float r) { + return inRect(x, y, r) || inTriangle(x, y, r) || inCircle(x, y, r); + } + + // Rectangle (Top-left quadrant) + private static boolean inRect(int x, float y, float r) { + return x >= -r / 2 && x <= 0 && y >= 0 && y <= r; // x from -R/2 to 0, y from 0 to R + } + + // Triangle (Bottom-left quadrant) + private static boolean inTriangle(int x, float y, float r) { + return x >= -r && x <= 0 && y <= 0 && y >= -r / 2 && (y >= (x + r) / 2); // x from -R to 0, y from -R/2 to 0 + } + + // Quarter Circle (Top-right quadrant) + private static boolean inCircle(int x, float y, float r) { + return x >= 0 && y >= 0 && (Math.pow(x, 2) + Math.pow(y, 2)) <= Math.pow(r, 2); // x and y from 0 to R (R as radius) + } +} \ No newline at end of file diff --git a/src/main/java/META-INF/MANIFEST.MF b/src/main/java/META-INF/MANIFEST.MF new file mode 100644 index 0000000..efe2e72 --- /dev/null +++ b/src/main/java/META-INF/MANIFEST.MF @@ -0,0 +1,3 @@ +Manifest-Version: 1.0 +Main-Class: PointCheckerServer + diff --git a/src/main/java/Params.java b/src/main/java/Params.java new file mode 100644 index 0000000..51d7ca7 --- /dev/null +++ b/src/main/java/Params.java @@ -0,0 +1,22 @@ +import java.net.URLDecoder; +import java.nio.charset.StandardCharsets; +import java.util.HashMap; +import java.util.Map; + +public class Params { + public static Map parse(String data) { + Map params = new HashMap<>(); + if (data == null || data.isEmpty()) { + return params; + } + String[] pairs = data.split("&"); + for (String pair : pairs) { + String[] kv = pair.split("=", 2); + String key = URLDecoder.decode(kv[0], StandardCharsets.UTF_8); + String value = kv.length > 1 ? URLDecoder.decode(kv[1], StandardCharsets.UTF_8) : ""; + params.put(key, value); + } + return params; + } +} + diff --git a/src/main/java/PointCheckerServer.java b/src/main/java/PointCheckerServer.java new file mode 100644 index 0000000..a33f67d --- /dev/null +++ b/src/main/java/PointCheckerServer.java @@ -0,0 +1,90 @@ +import com.fastcgi.FCGIInterface; + +import java.io.IOException; +import java.nio.charset.StandardCharsets; +import java.util.HashMap; +import java.util.Map; +import java.io.BufferedReader; +import java.io.InputStreamReader; +import java.time.Instant; +import java.time.Duration; + +public class PointCheckerServer { + private static final String RESPONSE_TEMPLATE = """ + Content-Type: application/json\r + Content-Length: %d\r + \r + %s"""; + + public static void main(String[] args) { + while (new FCGIInterface().FCGIaccept() >= 0) { + Instant startTime = Instant.now(); // Start timing + + try { + // Existing code to handle request + String method = FCGIInterface.request.params.getProperty("REQUEST_METHOD"); + Map params; + + if ("GET".equalsIgnoreCase(method)) { + String queryString = FCGIInterface.request.params.getProperty("QUERY_STRING"); + params = parseParams(queryString); + } else if ("POST".equalsIgnoreCase(method)) { + String contentLengthStr = FCGIInterface.request.params.getProperty("CONTENT_LENGTH"); + String postDataStr = getPostDataStr(contentLengthStr); + params = parseParams(postDataStr); + } else { + sendJson("{\"error\": \"Unsupported HTTP method\"}"); + continue; + } + + // Parse and validate parameters + int x = Integer.parseInt(params.get("x")); + float y = Float.parseFloat(params.get("y")); + float r = Float.parseFloat(params.get("r")); + + if (Validator.validateX(x) && Validator.validateY(y) && Validator.validateR(r)) { + boolean result = Checker.hit(x, y, r); + Instant endTime = Instant.now(); // End timing + long executionTimeMillis = Duration.between(startTime, endTime).toMillis(); + + // Include execution time in response + String jsonResponse = String.format("{\"result\": %b, \"executionTime\": %d}", result, executionTimeMillis); + sendJson(jsonResponse); + } else { + Instant endTime = Instant.now(); + long executionTimeMillis = Duration.between(startTime, endTime).toMillis(); + String jsonResponse = String.format("{\"error\": \"invalid data\", \"executionTime\": %d}", executionTimeMillis); + sendJson(jsonResponse); + } + } catch (Exception e) { + Instant endTime = Instant.now(); + long executionTimeMillis = Duration.between(startTime, endTime).toMillis(); + String jsonResponse = String.format("{\"error\": \"%s\", \"executionTime\": %d}", e.getMessage(), executionTimeMillis); + sendJson(jsonResponse); + } + } + } + + private static String getPostDataStr(String contentLengthStr) throws IOException { + int contentLength = contentLengthStr != null ? Integer.parseInt(contentLengthStr) : 0; + BufferedReader reader = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8)); + char[] postData = new char[contentLength]; + int totalRead = 0; + while (totalRead < contentLength) { + int read = reader.read(postData, totalRead, contentLength - totalRead); + if (read == -1) { + break; + } + totalRead += read; + } + return new String(postData, 0, totalRead); + } + + private static void sendJson(String jsonDump) { + System.out.printf((RESPONSE_TEMPLATE) + "%n", jsonDump.getBytes(StandardCharsets.UTF_8).length, jsonDump); + } + + private static Map parseParams(String data) throws Exception { + return Params.parse(data); + } +} diff --git a/src/main/java/Validator.java b/src/main/java/Validator.java new file mode 100644 index 0000000..4449132 --- /dev/null +++ b/src/main/java/Validator.java @@ -0,0 +1,15 @@ +public class Validator { + public static boolean validateX(int x) { + // Valid X values are between -5 and 3 inclusive + return x >= -5 && x <= 3; + } + + public static boolean validateY(float y) { + // Valid Y values are greater than -5 and less than 3 + return y > -5 && y < 3; + } + + public static boolean validateR(float r) { + return r == 1 || r == 1.5f || r == 2 || r == 2.5f || r == 3; + } +} diff --git a/web-1.iml b/web-1.iml new file mode 100644 index 0000000..b64b473 --- /dev/null +++ b/web-1.iml @@ -0,0 +1,12 @@ + + + + + + + + + + + + \ No newline at end of file diff --git a/web/index.html b/web/index.html new file mode 100644 index 0000000..a06c1f2 --- /dev/null +++ b/web/index.html @@ -0,0 +1,87 @@ + + + + + Лабораторная работа №1 + + + +
+

Лабораторная работа №1

+

ФИО студента: Карпов Александр Дмитриевич

+

Группа: P3213

+

Вариант: 342585

+
+ +
+
+ +
+ + + + + + + + + + + + + + + + +
+ +
+ 1 + 1.5 + 2 + 2.5 + 3 +
+ +
+
+
+ +
+

Results

+ + + + + + + + + +
XYRResultTimestampExecution Time (ms)
+
+
+ + + + diff --git a/web/script.js b/web/script.js new file mode 100644 index 0000000..3828e4e --- /dev/null +++ b/web/script.js @@ -0,0 +1,175 @@ +function submitForm() { + const x = document.getElementById('x').value; + const y = document.getElementById('y').value.trim(); + const rElements = document.getElementsByName('r'); + let r; + for (let i = 0; i < rElements.length; i++) { + if (rElements[i].checked) { + r = rElements[i].value; + break; + } + } + + // Validate input + if (!validateInput(x, y, r)) { + alert("Некорректные данные"); + return; + } + + // Prepare data for POST request + const data = new URLSearchParams(); + data.append('x', x); + data.append('y', y); + data.append('r', r); + + // Send POST request using Fetch API + fetch('/fcgi-bin/', { + method: 'POST', + headers: { + 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8' + }, + body: data.toString(), + }) + .then(response => response.json()) + .then(result => { + if (result.error) { + alert("Ошибка сервера: " + result.error); + } else { + updateResults({ + x: x, + y: y, + r: r, + hit: result.result, + timestamp: new Date().toLocaleString(), + executionTime: result.executionTime + ' ms' // Use executionTime from backend + }); + drawPoint(x, y, r); + } + }) + .catch(error => { + alert("Ошибка запроса: " + error); + }); +} + +function validateInput(x, y, r) { + const xValue = parseFloat(x); + const yValue = parseFloat(y.replace(',', '.')); + const rValue = parseFloat(r); + + if (isNaN(xValue) || isNaN(yValue) || isNaN(rValue)) return false; + if (xValue < -5 || xValue > 3) return false; + if (yValue < -5 || yValue > 3) return false; // Ensure correct range for y + return [1, 1.5, 2, 2.5, 3].includes(rValue); +} + +function updateResults(result) { + const table = document.getElementById('results'); + const row = table.insertRow(1); + row.insertCell(0).innerText = result.x; + row.insertCell(1).innerText = result.y; + row.insertCell(2).innerText = result.r; + row.insertCell(3).innerText = result.hit ? 'Попадание' : 'Промах'; + row.insertCell(4).innerText = result.timestamp; + row.insertCell(5).innerText = result.executionTime; +} + +function drawPoint(x, y, r) { + const canvas = document.getElementById('canvas'); + const ctx = canvas.getContext('2d'); + const width = canvas.width; + const height = canvas.height; + const centerX = width / 2; + const centerY = height / 2; + const scale = (width / 2 - 40) / r; + + const canvasX = centerX + x * scale; + const canvasY = centerY - y * scale; + + ctx.beginPath(); + ctx.arc(canvasX, canvasY, 3, 0, 2 * Math.PI); + ctx.fillStyle = 'red'; + ctx.fill(); +} + +function drawGraph(r = 1) { + const canvas = document.getElementById('canvas'); + const ctx = canvas.getContext('2d'); + + // Ensure the canvas is properly initialized + if (!canvas || !ctx) { + console.error('Canvas or context not found.'); + return; + } + + const width = canvas.width; + const height = canvas.height; + const centerX = width / 2; + const centerY = height / 2; + const scale = (width / 2 - 40) / r; // Ensure scale isn't too small + + // Clear the canvas before drawing + ctx.clearRect(0, 0, width, height); + + // Draw the axes + ctx.beginPath(); + ctx.moveTo(0, centerY); + ctx.lineTo(width, centerY); // Horizontal axis + ctx.moveTo(centerX, 0); + ctx.lineTo(centerX, height); // Vertical axis + ctx.strokeStyle = 'black'; + ctx.lineWidth = 2; + ctx.stroke(); + + // Draw R labels on axes + ctx.fillStyle = 'black'; + ctx.font = '12px Arial'; + + // X-axis labels + ctx.fillText('R', centerX + r * scale, centerY - 5); // R + ctx.fillText('R/2', centerX + (r / 2) * scale, centerY - 5); // R/2 + ctx.fillText('-R/2', centerX - (r / 2) * scale, centerY - 5); // -R/2 + ctx.fillText('-R', centerX - r * scale, centerY - 5); // -R + + // Y-axis labels + ctx.fillText('R', centerX + 5, centerY - r * scale); // R + ctx.fillText('R/2', centerX + 5, centerY - (r / 2) * scale); // R/2 + ctx.fillText('-R/2', centerX + 5, centerY + (r / 2) * scale); // -R/2 + ctx.fillText('-R', centerX + 5, centerY + r * scale); // -R + + // Draw shapes based on R + ctx.fillStyle = 'rgba(0, 0, 255, 0.3)'; + + // Draw the rectangle (Top-left quadrant) + ctx.fillRect(centerX - (r / 2) * scale, centerY - r * scale, (r / 2) * scale, r * scale); // Rectangle from -R/2 to 0 on X and 0 to R on Y + + // Draw the triangle (Bottom-left quadrant) + ctx.beginPath(); + ctx.moveTo(centerX, centerY); // Center + ctx.lineTo(centerX - r * scale, centerY); // Left + ctx.lineTo(centerX, centerY + r * scale / 2);// Bottom + ctx.closePath(); + ctx.fill(); + + // Correct Quarter Circle (Top-right quadrant) + ctx.beginPath(); + ctx.moveTo(centerX, centerY); // Start from center + ctx.arc(centerX, centerY, r * scale, - Math.PI / 2, 0);// Quarter circle from 0 to R on both axes (top-right) + ctx.closePath(); + ctx.fill(); + + console.log('Graph drawn with R =', r); +} + +// Trigger drawGraph on page load or when R is changed +const rElements = document.getElementsByName('r'); +rElements.forEach(radio => { + radio.addEventListener('change', () => { + const rValue = parseFloat(radio.value); + drawGraph(rValue); + }); +}); + +window.onload = function() { + drawGraph(); // Default R = 1 +}; + diff --git a/web/styles.css b/web/styles.css new file mode 100644 index 0000000..81e2b9f --- /dev/null +++ b/web/styles.css @@ -0,0 +1,56 @@ +body { + font-family: Arial, sans-serif; + margin: 0; + padding: 0; + background-color: #f0f0f0; +} + +.header { + background-color: #333; + color: white; + text-align: center; + padding: 1em; + font-family: cursive; +} + +.container { + display: flex; + justify-content: space-around; + margin-top: 2em; +} + +.form-container, .result-container { + background-color: white; + padding: 2em; + border-radius: 8px; + box-shadow: 0 0 10px rgba(0,0,0,0.1); +} + +table { + border-collapse: collapse; + width: 100%; +} + +th, td { + border: 1px solid #ddd; + padding: 8px; + text-align: left; +} + +th { + background-color: #f2f2f2; +} + +input[type="text"], input[type="button"] { + margin: 10px 0; + padding: 5px; +} + +#canvas { + border: 1px solid #000; + margin-bottom: 20px; +} + +input[type="radio"] { + margin-right: 10px; +}