lugnitdgp · rk18venom · Oct 28, 2021
diff --git a/Rahul/task3/Crawler/crawler.py b/Rahul/task3/Crawler/crawler.py
@@ -0,0 +1,107 @@
+from bs4 import BeautifulSoup
+import requests
+import pymongo
+import urllib
+import sys
+import lxml
+
+
+class Crawler():
+
+    connection_url = "mongodb://127.0.0.1:27017/"
+
+    client = pymongo.MongoClient(connection_url)
+
+    db = client.glugle
+
+    disallowed_links = []
+
+    def start_crawl(self, url, depth):
+        robots_url = urllib.parse.urljoin(url, '/robots.txt')
+
+        try:
+            robots = requests.get(robots_url)
+        except:
+            print("robots not found!!!")
+            self.crawl(url, depth)
+
+        soup = BeautifulSoup(robots.text, 'lxml')
+
+        sample_content = soup.find('p').text
+        content = sample_content.split()
+        for word in content:
+            if word[0] == '/':
+                self.disallowed_links.append(urllib.parse.urljoin(url, word))
+
+        print("robots found and appended in disallowed_links...")
+
+        self.crawl(url, depth, self.disallowed_links)
+
+    def crawl(self, url, depth, *disallowed_links):
+
+        try:
+            print(f"Crawling url {url} at depth: {depth}")
+            response = requests.get(url)
+        except:
+            print(f"Failed to perform HTTP GET request on {url}")
+            return
+
+        soup = BeautifulSoup(response.text, 'lxml')
+
+        try:
+            title = soup.find('title').text
+            description = ''
+
+            for tag in soup.findAll():
+                if tag.name == 'p':
+                    description += tag.text.strip().replace('\n', '')
+
+        except:
+            print("Failed to retrieve title and description...")
+            return
+
+        query = {
+            'url': url,
+            'title': title,
+            'description': description,
+        }
+
+        search_results = self.db.search_results
+
+        search_results.insert_one(query)
+
+        search_results.create_index(
+            [
+                ('url', pymongo.TEXT),
+                ('title', pymongo.TEXT),
+                ('description', pymongo.TEXT)
+            ],
+            name='search_results',
+            default_language="english"
+        )
+
+        if depth == 0:
+            return
+
+        links = soup.findAll('a')
+
+        for link in links:
+            try:
+                if link['href'] not in disallowed_links[0]:
+                    if 'http' in link['href']:
+                        self.crawl(link['href'], depth-1, disallowed_links[0])
+                    else:
+                        link['href'] = urllib.parse.urljoin(url, link['href'])
+                        self.crawl(link['href'], depth-1, disallowed_links[0])
+            except KeyError:
+                print("no links retrieved from the page")
+                pass
+
+        self.client.close()
+
+
+spider = Crawler()
+
+spider.start_crawl(
+    sys.argv[1], int(sys.argv[2])
+)
diff --git a/Rahul/task3/Templates/base.html b/Rahul/task3/Templates/base.html
@@ -0,0 +1,37 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+    <!-- Required meta tags -->
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+
+    <!-- Bootstrap CSS -->
+    <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
+        integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
+
+    <style>
+        .form-control:focus {
+            border-color: #43971b;
+            box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.075) inset, 0px 0px 8px rgba(255, 100, 255, 0.5);
+        }
+
+        .dropdown {
+            float: left;
+        }
+    </style>
+
+    <title>Glugle</title>
+</head>
+
+<body style="background-color: rgb(224, 226, 226);">
+    {% block content %}{% endblock %}
+
+
+    <!-- Option 1: Bootstrap Bundle with Popper -->
+    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
+        integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ"
+        crossorigin="anonymous"></script>
+</body>
+
+</html>
diff --git a/Rahul/task3/Templates/home.html b/Rahul/task3/Templates/home.html
@@ -0,0 +1,22 @@
+{% extends 'base.html' %}
+
+{% block content %}
+<div class="col">
+
+
+    <div class="col mt-5">
+        <img src="{{url_for('static' , filename='./images/logo.png')}}" class="mx-auto d-block"
+            style="width: 25%; height: 25%;">
+        <h1 style="color:rgb(91, 94, 92); text-align:center;font-family: 'Times New Roman', Times, serif;margin-top: 15px;padding: 15px;"
+            class="mt-2"><b>Glugle Search</b></h2>
+    </div>
+
+
+    <form class="mt-5 container" name="search" style="width: 50%" action="/search_results">
+        <div class="col-6 mx-auto input-group">
+            <input type="text" class="form-control" name="search" placeholder="search...">
+            <button type="submit" class="btn btn-success">Search</button>
+        </div>
+    </form>
+</div>
+{% endblock %}
diff --git a/Rahul/task3/Templates/search_result.html b/Rahul/task3/Templates/search_result.html
@@ -0,0 +1,40 @@
+{% extends 'base.html' %}
+
+{% block content %}
+
+<div class="container">
+    <form class="mt-5 container" name="search" style="width: 50%" action="/search_results">
+        <div class="col-6 mx-auto input-group">
+            <input type="text" class="form-control" name="search" placeholder="search...">
+            <button type="submit" class="btn btn-success">Search</button>
+        </div>
+    </form>
+
+    <div class="container mx-5 mt-5">
+        <p style="color: teal;"><b>Search result for '{{search_string}}'</b></p>
+    </div>
+
+    {% if search_result %}
+    {% for link in search_result %}
+    <div class="container mt-3" style="width:90%">
+
+        <div class="col">
+            <strong><a href="{{ link.url }}" target="_ blank">{{ link.title }}</a></strong>
+        </div>
+
+        <div class="col">
+            <a href="{{ link.url }}" target="_blank">{{ link.url }}</a>
+            <p>{{ link.description[:300] }}...</p>
+        </div>
+    </div>
+    {% endfor %}
+    {% else %}
+    <b>No results found</b>
+    {% endif %}
+
+    <div class="col mb-5 mt-2 text-center">
+        {{pagination.links}}
+    </div>
+</div>
+
+{% endblock %}
diff --git a/Rahul/task3/app.py b/Rahul/task3/app.py
@@ -0,0 +1,56 @@
+from flask import Flask, render_template, request
+from flask_paginate import Pagination, get_page_args
+import pymongo
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def entry_point():
+    return render_template('home.html')
+
+
+@app.route('/search_results')
+def search_results():
+    connect_url = 'mongodb://127.0.0.1:27017/'
+
+    client = pymongo.MongoClient(connect_url, connect=False)
+
+    db = client.glugle
+
+    search_string = request.args.get('search')
+
+    query = db.search_results.find(
+        {'$text': {'$search': search_string, '$caseSensitive': False}})
+
+    search_result = []
+
+    for doc in query:
+        exist = False
+        for result in search_result:
+            if result['title'] == doc['title'] or result['url'] == doc['url']:
+                exist = True
+                break
+
+        if exist == False:
+            search_result.append(doc)
+
+    page, per_page, offset = get_page_args(page_parameter='page',
+                                           per_page_parameter='per_page')
+
+    total = len(search_result)
+
+    pagination = Pagination(page=page, per_page=per_page, total=total,
+                            css_framework='bootstrap4')
+
+    return render_template('search_result.html',
+                           search_result=search_result[offset:offset+per_page],
+                           page=page,
+                           per_page=per_page,
+                           pagination=pagination,
+                           search_string=search_string
+                           )
+
+
+if __name__ == '__main__':
+    app.run(debug=True)
diff --git a/Rahul/task3/images/logo.png b/Rahul/task3/images/logo.png
diff --git a/Rahul/task3/pyvenv3.9/Lib/site-packages/Flask-2.0.2.dist-info/INSTALLER b/Rahul/task3/pyvenv3.9/Lib/site-packages/Flask-2.0.2.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/Rahul/task3/pyvenv3.9/Lib/site-packages/Flask-2.0.2.dist-info/LICENSE.rst b/Rahul/task3/pyvenv3.9/Lib/site-packages/Flask-2.0.2.dist-info/LICENSE.rst
@@ -0,0 +1,28 @@
+Copyright 2010 Pallets
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+1.  Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+
+2.  Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+3.  Neither the name of the copyright holder nor the names of its
+    contributors may be used to endorse or promote products derived from
+    this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.