Merge pull request 'Title and description extraction now only look in the head section of the HTML document' (#40 ) from OptimizeTitleAndDescriptionExtraction into main

Reviewed-on: #40
Title and description extraction now only look in the head section of the HTML document
2024-12-23 13:10:49 +00:00 · 2024-12-23 14:09:51 +01:00 · 2024-12-21 21:19:28 +00:00 · 2024-12-21 21:57:01 +01:00 · 2024-12-19 17:37:01 +00:00 · 2024-12-19 18:36:13 +01:00
27 changed files with 11635 additions and 57 deletions
@@ -16,6 +16,7 @@
    <ItemGroup>
      <PackageReference Include="FuzzySharp" Version="2.0.2" />
      <PackageReference Include="HtmlAgilityPack" Version="1.11.71" />
      <PackageReference Include="NetMQ" Version="4.0.1.13" />
    </ItemGroup>
@@ -161,19 +161,19 @@ public class ContentFilter
        for (int i = 0; i < ports.Length; i++)
        {
            string? html = "";
            if (ports[i] == 80)
            {
                if (string.IsNullOrWhiteSpace(url1)) continue;
                try
                {
-                    html = HttpClientHelper.GetHtml(url1, 80).GetAwaiter().GetResult();
+                    (string, string) temp = HttpClientHelper.GetTitleAndDescription(url1, 80).GetAwaiter().GetResult();
                    title1 = temp.Item1;
                    description1 = temp.Item2;
                }
-                catch (Exception e)
+                catch
                {
-                    Console.WriteLine(e);
+                    //
                }
            }
            else
@@ -182,20 +182,16 @@ public class ContentFilter
                try
                {
-                    html = HttpClientHelper.GetHtml(url2, 443).GetAwaiter().GetResult();
+                    (string, string) temp = HttpClientHelper.GetTitleAndDescription(url1, 443).GetAwaiter().GetResult();
                    title2 = temp.Item1;
                    description2 = temp.Item2;
                }
-                catch (Exception e)
+                catch
                {
-                    Console.WriteLine(e);
+                    //
                }
            }
            if (string.IsNullOrWhiteSpace(html)) continue;
            if (ports[i] == 80 && string.IsNullOrWhiteSpace(title1)) { FilterHelper.GetTitle(html, out title1); }
            if (ports[i] == 443 && string.IsNullOrWhiteSpace(title2)) { FilterHelper.GetTitle(html ,out title2); }
            if (ports[i] == 80 && string.IsNullOrWhiteSpace(description1)) { FilterHelper.GetDescription(html, out description1); }
            if (ports[i] == 443 && string.IsNullOrWhiteSpace(description2)) { FilterHelper.GetDescription(html, out description2); }
            if (ports[i] == 80 && !robotsTxt1) { robotsTxt1 = HttpClientHelper.HasRobotsTxt(url1, 80).GetAwaiter().GetResult(); }
            if (ports[i] == 443 && !robotsTxt2) { robotsTxt2 = HttpClientHelper.HasRobotsTxt(url2, 443).GetAwaiter().GetResult(); }
        }
@@ -1,10 +1,18 @@
-using System.Diagnostics;
+using System.Text.RegularExpressions;
 using HtmlAgilityPack;
 namespace Backend.Helper;
-public static class HttpClientHelper
+public static partial class HttpClientHelper
 {
-    public static async Task<string> GetHtml(string url, int port)
+    // Reddit, for example, will block the GET request if you don't have a user agent.
    private const string UserAgentHeader = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36";
    private const string TitlePattern = "<title>(.*)</title>";
    private const string DescriptionPattern = "<meta name=\"description\" content=\"(.*?)\"";
    private const string StartHeadTag = "<head>";
    private const string EndHeadTag = "</head>";
    public static async Task<(string, string)> GetTitleAndDescription(string url, int port)
    {
        using HttpClient client = new();
@@ -18,7 +26,8 @@ public static class HttpClientHelper
        }
        client.DefaultRequestHeaders.Accept.Clear();
-        client.Timeout = TimeSpan.FromSeconds(1);
+        client.DefaultRequestHeaders.UserAgent.ParseAdd(UserAgentHeader);
        client.Timeout = TimeSpan.FromSeconds(30);
        HttpResponseMessage? response;
@@ -28,15 +37,48 @@ public static class HttpClientHelper
        }
        catch
        {
-            return "";
+            return ("", "");
        }
        if (!response.IsSuccessStatusCode)
        {
-            return "";
+            return ("", "");
        }
-        return await response.Content.ReadAsStringAsync();
+        string html = await response.Content.ReadAsStringAsync();
        int firstIndex = 0;
        int lastIndex = 0;
        if (html.Contains(StartHeadTag) && html.Contains(EndHeadTag))
        {
            firstIndex = html.IndexOf(StartHeadTag, StringComparison.Ordinal);
            lastIndex = html.IndexOf(EndHeadTag, StringComparison.Ordinal);
        }
        string head = html.AsSpan().Slice(firstIndex, lastIndex).ToString();
        html = "";
        string title = "";
        string description = "";
        Regex titleRegex = TitleRegEx();
        Match titleMatch = titleRegex.Match(head);
        if (titleMatch.Success)
        {
            title = titleMatch.Groups[1].Value;
        }
        Regex descriptionRegex = DexcriptionRegEx();
        Match descriptionMatch = descriptionRegex.Match(head);
        if (descriptionMatch.Success)
        {
            description = descriptionMatch.Groups[1].Value;
        }
        return (title, description);
    }
    public static async Task<bool> HasRobotsTxt(string url, int port)
@@ -53,12 +95,13 @@ public static class HttpClientHelper
        }
        client.DefaultRequestHeaders.Accept.Clear();
-        client.Timeout = TimeSpan.FromSeconds(1);
+        client.DefaultRequestHeaders.UserAgent.ParseAdd(UserAgentHeader);
        client.Timeout = TimeSpan.FromSeconds(30);
        HttpResponseMessage? response = null;
        try
-        {//
+        {
            response = await client.SendAsync(new(HttpMethod.Head, "/robots.txt"));
        }
        catch
@@ -68,4 +111,9 @@ public static class HttpClientHelper
        return response is not null && response.IsSuccessStatusCode;
    }
    [GeneratedRegex(TitlePattern)]
    private static partial Regex TitleRegEx();
    [GeneratedRegex(DescriptionPattern)]
    private static partial Regex DexcriptionRegEx();
 }
@@ -1,10 +1,12 @@
 using System.Text.Json;
 using System.Text.Json.Serialization;
-using MessagePack;
+using AspNetCoreRateLimit;
-using Microsoft.AspNetCore.Cors.Infrastructure;
+using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.Extensions.Caching.Memory;
 using Models.Model.External;
 using NetMQ;
 using NetMQ.Sockets;
 const string myAllowSpecificOrigins = "_myAllowSpecificOrigins";
 WebApplicationBuilder builder = WebApplication.CreateSlimBuilder(args);
@@ -15,18 +17,29 @@ builder.Services.ConfigureHttpJsonOptions(options =>
 builder.Services.AddCors(options =>
 {
-    options.AddPolicy("CorsPolicy", x => x.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader().Build());
+    options.AddPolicy(name: myAllowSpecificOrigins, x => x.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());
 });
 builder.Services.AddMemoryCache(options => options.ExpirationScanFrequency = TimeSpan.FromSeconds(5));
 WebApplication app = builder.Build();
-app.UseCors();
+app.UseForwardedHeaders(new()
 {
    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
 });
 app.UseCors(myAllowSpecificOrigins);
 RouteGroupBuilder progressApi = app.MapGroup("/progress");
-progressApi.AllowAnonymous();
+progressApi.MapGet("/", (IMemoryCache memoryCache) =>
 progressApi.DisableAntiforgery();
 progressApi.MapGet("/", () =>
 {
    const string cacheKey = "progress_status";
    if (memoryCache.TryGetValue(cacheKey, out ScanningStatus scanningStatus))
    {
        return scanningStatus;
    }
    CommunicationObject communicationObject = new()
    {
        Command = CommunicationCommand.GetScanningProgress
@@ -40,11 +53,15 @@ progressApi.MapGet("/", () =>
    byte[] msg = client.ReceiveFrameBytes();
    client.Close();
-    return JsonSerializer.Deserialize<ScanningStatus>(msg);
+    scanningStatus = JsonSerializer.Deserialize<ScanningStatus>(msg);
    memoryCache.Set(cacheKey, scanningStatus, DateTimeOffset.Now.AddSeconds(5));
    return scanningStatus;
 });
 /*
 RouteGroupBuilder searchApi = app.MapGroup("/search");
 progressApi.AllowAnonymous();
 searchApi.MapGet("/{term}", (string term) =>
 {
    CommunicationObject communicationObject = new();
@@ -61,11 +78,11 @@ searchApi.MapGet("/{term}", (string term) =>
    return JsonSerializer.Deserialize<SearchResults?>(msg);
 });
-
+*/
 app.Run();
 [JsonSerializable(typeof(ScanningStatus))]
-[JsonSerializable(typeof(SearchResults))]
+//[JsonSerializable(typeof(SearchResults))]
 [JsonSerializable(typeof(CommunicationObject))]
 internal partial class AppJsonSerializerContext : JsonSerializerContext
 {
@@ -9,6 +9,7 @@
    </PropertyGroup>
    <ItemGroup>
        <PackageReference Include="AspNetCoreRateLimit" Version="5.0.0" />
        <PackageReference Include="NetMQ" Version="4.0.1.13" />
    </ItemGroup>
@@ -1,7 +1,7 @@
 {
  "Logging": {
    "LogLevel": {
-      "Default": "Information",
+      "Default": "Warning",
      "Microsoft.AspNetCore": "Warning"
    }
  },
@@ -8,8 +8,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Manager", "Manager\Manager.
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Proxy", "Proxy\Proxy.csproj", "{55208481-5203-4B25-A20D-4EF644F76773}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Shared", "Shared\Shared.csproj", "{DEB1411C-F45A-40DA-92F8-D9B9929DBA5B}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -32,9 +30,5 @@ Global
 		{55208481-5203-4B25-A20D-4EF644F76773}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{55208481-5203-4B25-A20D-4EF644F76773}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{55208481-5203-4B25-A20D-4EF644F76773}.Release|Any CPU.Build.0 = Release|Any CPU
 		{DEB1411C-F45A-40DA-92F8-D9B9929DBA5B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{DEB1411C-F45A-40DA-92F8-D9B9929DBA5B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DEB1411C-F45A-40DA-92F8-D9B9929DBA5B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DEB1411C-F45A-40DA-92F8-D9B9929DBA5B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
@@ -1,6 +1,11 @@
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 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003A02000009pdb7Low_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003F_002Econfig_003FJetBrains_003FRider2024_002E2_003Fresharper_002Dhost_003FDecompilerCache_003FILViewer_003Fbbcfe225942e4131bc589e82ae4b92ab9800_003Fc0_003Fa20d693d_003F02000009pdb7Low_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
 	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003A0200000Cpdb6Low_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003F_002E_002E_003F_002Econfig_003FJetBrains_003FRider2024_002E2_003Fresharper_002Dhost_003FDecompilerCache_003FILViewer_003Fb53c196a821648e4ae3b142a6ae58d7b9400_003Fa8_003F21a43479_003F0200000Cpdb6Low_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
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@@ -1,5 +0,0 @@
 namespace Shared;
 public class Class1
 {
 }
@@ -1,9 +0,0 @@
 <Project Sdk="Microsoft.NET.Sdk">
    <PropertyGroup>
        <TargetFramework>net8.0</TargetFramework>
        <ImplicitUsings>enable</ImplicitUsings>
        <Nullable>enable</Nullable>
    </PropertyGroup>
 </Project>
@@ -0,0 +1,24 @@
 # Nuxt dev/build outputs
 .output
 .data
 .nuxt
 .nitro
 .cache
 dist
 # Node dependencies
 node_modules
 # Logs
 logs
 *.log
 # Misc
 .DS_Store
 .fleet
 .idea
 # Local env files
 .env
 .env.*
 !.env.example
@@ -0,0 +1,75 @@
 # Nuxt Minimal Starter
 Look at the [Nuxt documentation](https://nuxt.com/docs/getting-started/introduction) to learn more.
 ## Setup
 Make sure to install dependencies:
 ```bash
 # npm
 npm install
 # pnpm
 pnpm install
 # yarn
 yarn install
 # bun
 bun install
 ```
 ## Development Server
 Start the development server on `http://localhost:3000`:
 ```bash
 # npm
 npm run dev
 # pnpm
 pnpm dev
 # yarn
 yarn dev
 # bun
 bun run dev
 ```
 ## Production
 Build the application for production:
 ```bash
 # npm
 npm run build
 # pnpm
 pnpm build
 # yarn
 yarn build
 # bun
 bun run build
 ```
 Locally preview production build:
 ```bash
 # npm
 npm run preview
 # pnpm
 pnpm preview
 # yarn
 yarn preview
 # bun
 bun run preview
 ```
 Check out the [deployment documentation](https://nuxt.com/docs/getting-started/deployment) for more information.
@@ -0,0 +1,16 @@
 <script setup lang="ts">
 useHead({
  title: 'Rasmus Search Engine',
  meta: [
    { name: 'description', content: 'Just a search engine for fun' },
    { name: 'lang', content: 'en'}
  ]
 })
 </script>
 <template>
  <NuxtLayout>
    <NuxtPage page-key="static" />
  </NuxtLayout>
 </template>
@@ -0,0 +1,3 @@
@tailwind base;
@tailwind components;
@tailwind utilities;
@@ -0,0 +1,17 @@
 // https://nuxt.com/docs/api/configuration/nuxt-config
 export default defineNuxtConfig({
  compatibilityDate: '2024-12-16',
  ssr: true,
  devtools: { enabled: true },
  css: ['@/assets/css/main.css'],
  postcss: {
    plugins: {
      tailwindcss: {},
      autoprefixer: {},
    },
  },
  modules: ['@nuxtjs/tailwindcss', 'nuxt-purgecss'],
 });
@@ -0,0 +1,25 @@
 {
  "name": "nuxt-app",
  "private": true,
  "type": "module",
  "scripts": {
    "build": "nuxt build",
    "dev": "nuxt dev",
    "generate": "nuxt generate",
    "preview": "nuxt preview",
    "postinstall": "nuxt prepare"
  },
  "dependencies": {
    "@nuxtjs/partytown": "^1.5.0",
    "nuxt": "^3.14.1592",
    "vue": "latest",
    "vue-router": "latest"
  },
  "devDependencies": {
    "@nuxtjs/tailwindcss": "^6.12.2",
    "autoprefixer": "^10.4.20",
    "nuxt-purgecss": "^2.0.0",
    "postcss": "^8.4.49",
    "tailwindcss": "^3.4.16"
  }
 }
@@ -0,0 +1,11 @@
 <script setup lang="ts">
 const route = useRoute()
 </script>
 <template>
  <div>
    <h1>Nuxt Routing set up successfully!</h1>
    <p>Current route: {{ route.path }}</p>
    <a href="https://nuxt.com/docs/getting-started/routing" target="_blank">Learn more about Nuxt Routing</a>
  </div>
 </template>
@@ -0,0 +1,67 @@
 <script setup lang="ts">
 import { fetchWithCache } from '~/utils/cacheUtil';
 import { progressTypeToDictionary } from '~/utils/convertProgressTypeToDictionary';
 const data = ref<ProgressType | null>(null);
 const loading = ref<boolean>(true);
 const error = ref<string | null>(null);
 let dict = ref<ProgressDictionary[] | null>(null);
 const fetchMyData = async () => {
    try {
        loading.value = true;
        // Use the caching utility
        data.value = await fetchWithCache<ProgressType>(
              'Progress',
              async () => {
                const response = await fetch('https://proxy.rbwr.dk/progress');
                if (!response.ok) throw new Error('API fetch failed');
                return (await response.json()) as ProgressType;
            },
            5 // Cache max age in seconds
        );
    } catch (err) {
        error.value = (err as Error).message;
    } finally {
        loading.value = false;
      if (data.value !== null) {
        dict.value = progressTypeToDictionary(data.value);
      }
    }
 };
 fetchMyData();
 </script>
 <template>
  <div class="h-screen grid place-items-center">
    <div v-if="dict">
      <table class="table-auto border-gray-300">
        <thead>
          <tr>
            <th class="px-4 py-2">Metric</th>
            <th class="px-4 py-2">Value</th>
          </tr>
        </thead>
        <tbody>
          <tr v-for="d in dict">
            <td class="px-4 py-2">{{d.description}}</td>
            <td class="px-4 py-2">{{d.value}}</td>
          </tr>
        </tbody>
      </table>
    </div>
  </div>
 </template>
 <style scoped>
 </style>
@@ -0,0 +1 @@
@@ -0,0 +1,3 @@
 {
  "extends": "../.nuxt/tsconfig.server.json"
 }
@@ -0,0 +1,16 @@
 /** @type {import('tailwindcss').Config} */
 export default {
  content: [
    "./components/**/*.{js,vue,ts}",
    "./layouts/**/*.vue",
    "./pages/**/*.vue",
    "./plugins/**/*.{js,ts}",
    "./app.vue",
    "./error.vue",
  ],
  theme: {
    extend: {},
  },
  plugins: [],
 }
@@ -0,0 +1,4 @@
 {
  // https://nuxt.com/docs/guide/concepts/typescript
  "extends": "./.nuxt/tsconfig.json"
 }
@@ -0,0 +1,19 @@
 interface ProgressType {
    percentageOfIpv4Scanned: number; // assuming this is a number
    totalFiltered: bigint;
    amountOfIpv4Left: bigint;
    totalDiscarded: bigint;
    discardedDbSize: bigint;
    filteredDbSize: bigint;
    myDbSize: bigint;
 }
 interface ProgressDictionary {
    description: string;
    value: string;
 }
 type CacheEntry<T> = {
    data: T;
    timestamp: number;
 };
@@ -0,0 +1,34 @@
 export function fetchWithCache<Type>(
    cacheKey: string,
    fetchFunction: () => Promise<Type>,
    maxAge: number = 5 // 30 seconds
 ): Promise<Type> {
    return new Promise(async (resolve, reject) => {
        try {
            const cachedData = localStorage.getItem(cacheKey);
            if (cachedData) {
                const { data, timestamp } = JSON.parse(cachedData) as CacheEntry<Type>;
                const now = Date.now();
                const ageInSeconds = (now - timestamp) / 1000;
                // Check if cache is still valid
                if (ageInSeconds < maxAge) {
                    return resolve(data);
                }
            }
            // Cache is missing or expired, fetch fresh data
            const freshData = await fetchFunction();
            const cacheEntry: CacheEntry<Type> = {
                data: freshData,
                timestamp: Date.now(),
            };
            localStorage.setItem(cacheKey, JSON.stringify(cacheEntry));
            resolve(freshData);
        } catch (error) {
            reject(error);
        }
    });
 }
@@ -0,0 +1,11 @@
 export function progressTypeToDictionary(progress: ProgressType) {
    return [
    { description: "Percentage of Ipv4 scanned", value: progress.percentageOfIpv4Scanned.toString() },
    { description: "Total filtered", value: progress.totalFiltered.toString() },
    { description: "Total Discarded", value: progress.totalDiscarded.toString() },
    { description: "Amount of Ipv4 left", value: progress.amountOfIpv4Left.toString() },
    { description: "Discarded db size", value: progress.discardedDbSize.toString() },
    { description: "Filtered db size", value: progress.filteredDbSize.toString() },
    { description: "Unfiltered db size", value: progress.myDbSize.toString() },
    ]
 }
Author	SHA1	Message	Date
owner	f4d94a3336	Merge pull request 'Title and description extraction now only look in the head section of the HTML document' (#40 ) from OptimizeTitleAndDescriptionExtraction into main Reviewed-on: #40	2024-12-23 13:10:49 +00:00
owner	e9fd738f1f	Title and description extraction now only look in the head section of the HTML document	2024-12-23 14:09:51 +01:00
owner	e581d947f8	Merge pull request 'Add user-agent' (#39 ) from AddUserAgent into main Reviewed-on: #39	2024-12-21 21:19:28 +00:00
owner	580d687f62	Add user-agent	2024-12-21 21:57:01 +01:00
owner	af7b385641	Merge pull request 'Add cached progress response' (#36 ) from ImplementAPICache into main Reviewed-on: #36	2024-12-19 17:37:01 +00:00
owner	7562bbf7d1	Add cached progress response	2024-12-19 18:36:13 +01:00
owner	ac645b01b9	Merge pull request 'OptimiseFrontend' (#35 ) from OptimiseFrontend into main Reviewed-on: #35	2024-12-18 13:28:03 +00:00
owner	97321492ba	Add headers	2024-12-18 14:27:31 +01:00
owner	8628d31bec	Add nuxt-purgecss to further minimize bundle size.	2024-12-18 12:02:35 +01:00
owner	23d0a8b978	Merge pull request 'UseDictionary' (#34 ) from UseDictionary into main Reviewed-on: #34	2024-12-17 20:33:08 +00:00
owner	8b55cf7bb6	Reworked the /progress page	2024-12-17 13:15:47 +01:00
owner	3822339dd9	Add a time-based cache for the progress result from the API	2024-12-17 10:46:10 +01:00
owner	1c74ae9de5	Added frontend and working fetching.	2024-12-14 13:26:21 +01:00
owner	bab8fa6c25	Added frontend project with some basic api fetching implemented.	2024-12-06 12:33:48 +01:00
owner	cd49d32dd7	Merge pull request 'Misc changes such as performance tuning, added support for more than 64 threads for the scanner.' (#24 ) from UseForeignKeys into main Reviewed-on: #24	2024-12-04 12:24:34 +00:00