├── .gitignore ├── LICENSE ├── README ├── TODO ├── app ├── __init__.py ├── db.py ├── iterfuncs.py ├── models │ ├── __init__.py │ ├── base.py │ ├── products.py │ ├── rules.py │ └── searchresults.py ├── notifications │ ├── __init__.py │ ├── notifications.py │ └── smtp.py ├── pricefuncs.py ├── scraper │ ├── __init__.py │ ├── scraper.py │ └── wireprotocol.py └── searcher │ ├── __init__.py │ └── searcher.py ├── config.py ├── font ├── BPG_Courier.ttf └── BPG_Courier_Bold.ttf ├── list.py ├── manage.py ├── plot-days.py ├── process.py ├── scrape.py └── search.py /.gitignore: -------------------------------------------------------------------------------- 1 | *.pyc 2 | .DS_Store 3 | *.db 4 | private/* 5 | Xcode 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README: -------------------------------------------------------------------------------- 1 | 2 | ================================================================================ 3 | Amazon Price Scraper 4 | ================================================================================ 5 | 6 | A tool to scrape product prices, and (optionally) graph changes over time. Requirements: 7 | 8 | - Python 2.6 - 2.7 (Full Python 3 support coming soon) 9 | - SQLite3 10 | - SQL Alchemy 11 | - Requests 12 | - BeautifulSoup v4 13 | - PIL (optional, for plotting data to images) 14 | 15 | -------------------------------------------------------------------------------- 16 | Adding/Managing Products to Scrape 17 | -------------------------------------------------------------------------------- 18 | 19 | To add a product run: 20 | 21 | ./manage.py add --title TITLE --group GROUP --url URL 22 | 23 | Example: 24 | 25 | ./manage.py add --title "Monster Hunter 3 Ultimate" --group "3DS" --url "http://www.amazon.com/gp/product/B009B1D7JK" 26 | 27 | Full list of commands for manage.py: 28 | 29 | list [--group GROUP] [--broken] 30 | add --title TITLE --group GROUP --url URL 31 | update --id ID [--title TITLE] [--group GROUP] [--url URL] 32 | remove --id ID 33 | 34 | -------------------------------------------------------------------------------- 35 | Scraping Data 36 | -------------------------------------------------------------------------------- 37 | 38 | Data scraping intervals are controlled in config.py in scraper['run_every']. To scrape data, run the command: 39 | 40 | ./scrape.py 41 | 42 | The scraper process will fork workers to download price data. Once the price data has been downloaded and saved to the database, it will reindex history data (which is used by the plot-days.py command), reindex the main product index, prune deleted items, and clear out older data which is no longer being used. 43 | 44 | -------------------------------------------------------------------------------- 45 | Listing Data 46 | -------------------------------------------------------------------------------- 47 | 48 | To list price data, simply run: 49 | 50 | ./list.py [-n NUMBER] 51 | 52 | Where "-n NUMBER" is the number of products you want to list for each product group. 53 | 54 | -------------------------------------------------------------------------------- 55 | Plotting Changes Over Time 56 | -------------------------------------------------------------------------------- 57 | 58 | Once enough data has been collected, you can plot price changes over time by running the command: 59 | 60 | ./plot-days.py 61 | 62 | This tool will output image files to private/days/ which you can then view. 63 | 64 | -------------------------------------------------------------------------------- 65 | Notifications (coming soon) 66 | -------------------------------------------------------------------------------- 67 | -------------------------------------------------------------------------------- /TODO: -------------------------------------------------------------------------------- 1 | 2 | - Search tool. When given a search term, it would output search results to the terminal window, and provide an easy way to get more details about specific products, and have the ability to add products to the watch list (without going through manage.py). 3 | 4 | - Don't plot items which don't have enough data yet. 5 | 6 | - List best/cheapest overall deals. 7 | 8 | - Make main scraper use SQL Alchemy for consistency... Should be possible, even 9 | with multiple processes. 10 | 11 | - Rotate products, so they aren't all being scraped at the same time? 12 | 13 | - Get rid of title parameter in Scraper.scrape_product_info(self, title, url). 14 | 15 | - Rework manage.py, should allow you to add notification rules. 16 | - Rework notification system: 17 | - How do we handle formatting subject/message? 18 | -------------------------------------------------------------------------------- /app/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cleure/Amazon-Scraper/f0ddf68a128eba9cb02a298896e8d7c2d34e990b/app/__init__.py -------------------------------------------------------------------------------- /app/db.py: -------------------------------------------------------------------------------- 1 | 2 | import sqlalchemy 3 | from sqlalchemy.ext.declarative import declarative_base 4 | from sqlalchemy import Column, Integer, String 5 | from sqlalchemy.orm import sessionmaker 6 | from sqlalchemy.sql import func 7 | 8 | from app.models.base import Base 9 | from app.models.products import * 10 | from app.models.searchresults import * 11 | from app.models.rules import * 12 | 13 | class SessionManager(object): 14 | def __init__(self, path): 15 | self.engine = sqlalchemy.create_engine(path, echo=False) 16 | Session = sessionmaker(bind=self.engine) 17 | self.session = Session() 18 | Base.metadata.create_all(self.engine) 19 | 20 | def __del__(self): 21 | self.session.close() 22 | -------------------------------------------------------------------------------- /app/iterfuncs.py: -------------------------------------------------------------------------------- 1 | 2 | try: 3 | rangefn = xrange 4 | except NameError: 5 | rangefn = range 6 | 7 | def chunks(source, n): 8 | for i in rangefn(0, len(source), n): 9 | yield source[i:i+n] 10 | -------------------------------------------------------------------------------- /app/models/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cleure/Amazon-Scraper/f0ddf68a128eba9cb02a298896e8d7c2d34e990b/app/models/__init__.py -------------------------------------------------------------------------------- /app/models/base.py: -------------------------------------------------------------------------------- 1 | from sqlalchemy.ext.declarative import declarative_base 2 | Base = declarative_base() 3 | 4 | def created_modified_default(): 5 | return datetime.datetime.utcnow() 6 | -------------------------------------------------------------------------------- /app/models/products.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from sqlalchemy import Column, DateTime, Integer, String, Text 3 | from sqlalchemy import ForeignKey, Table, UniqueConstraint, Index 4 | from sqlalchemy.orm import relationship, backref, validates 5 | from base import * 6 | 7 | class ProductGroup(Base): 8 | __tablename__ = 'product_groups' 9 | 10 | id = Column(Integer, primary_key=True, nullable=False) 11 | name = Column(String(64), index=True, unique=True, nullable=False) 12 | 13 | class Product(Base): 14 | __tablename__ = 'products' 15 | 16 | id = Column(Integer, primary_key=True, nullable=False) 17 | group_id = Column(Integer, ForeignKey('product_groups.id'), index=True) 18 | title = Column(String(64), nullable=False) 19 | url = Column(Text, nullable=False) 20 | broken = Column(Integer, index=True, default=0) 21 | 22 | price_sale = Column(Integer) 23 | price_regular = Column(Integer) 24 | price_savings = Column(Integer) 25 | trending = Column(String, index=True) 26 | trending_dist = Column(Integer) 27 | sort_price = Column(Integer, index=True) 28 | sort_savings = Column(Integer, index=True) 29 | 30 | __table_args__ = ( 31 | UniqueConstraint('title', 'group_id', name='products_title_group_id_uc'), 32 | Index('products_title_group_id_idx', 'title', 'group_id'), 33 | ) 34 | 35 | @validates(trending) 36 | def validate_trending(self, key, value): 37 | assert value in set(['U', 'D', 'S']) 38 | 39 | class ProductPrice(Base): 40 | __tablename__ = 'product_prices' 41 | 42 | id = Column(Integer, primary_key=True) 43 | product_id = Column(Integer, ForeignKey('products.id'), index=True) 44 | price_sale = Column(Integer) 45 | items_left = Column(Integer) 46 | price_regular = Column(Integer) 47 | shipping = Column(Integer) 48 | created = Column(DateTime, default=created_modified_default, index=True) 49 | 50 | class ProductPriceHistory(Base): 51 | __tablename__ = 'product_price_history' 52 | 53 | id = Column(Integer, primary_key=True) 54 | product_id = Column(Integer, ForeignKey('products.id'), index=True) 55 | price = Column(Integer) 56 | date_range = Column(String(1), index=True) 57 | date_of = Column(DateTime, index=True) 58 | 59 | @validates(date_range) 60 | def validate_date_range(self, key, value): 61 | assert value in set(['D', 'W', 'M']) 62 | return value 63 | -------------------------------------------------------------------------------- /app/models/rules.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from sqlalchemy import Column, Integer, String, Float 3 | from sqlalchemy import ForeignKey, Table, UniqueConstraint, Index 4 | from sqlalchemy.orm import relationship, backref, validates 5 | from base import * 6 | 7 | class ListRule(Base): 8 | __tablename__ = 'list_rules' 9 | 10 | id = Column(Integer, primary_key=True) 11 | product_id = Column(Integer, ForeignKey('products.id'), index=True, nullable=False) 12 | rule_type = Column(String(64), nullable=False) 13 | rule_amount_int = Column(Integer) 14 | rule_amount_float = Column(Float) 15 | 16 | @validates('rule_type') 17 | def validate_rule_type(self, key, value): 18 | assert value in set(['price_below', 'savings_above']) 19 | return value 20 | -------------------------------------------------------------------------------- /app/models/searchresults.py: -------------------------------------------------------------------------------- 1 | import datetime 2 | from sqlalchemy import Column, DateTime, Integer, String, Text 3 | from sqlalchemy import ForeignKey, Table, UniqueConstraint, Index 4 | from sqlalchemy.orm import relationship, backref, validates 5 | from base import * 6 | 7 | class SearchResultCached(Base): 8 | __tablename__ = 'search_results_cache' 9 | 10 | id = Column(Integer, primary_key=True, nullable=False) 11 | sort_index = Column(Integer) 12 | page_num = Column(Integer) 13 | search_keywords = Column(String(64)) 14 | 15 | # Product Details 16 | title = Column(String(128)) 17 | url = Column(String(128)) 18 | category = Column(String(64)) 19 | sub_category = Column(String(64)) 20 | price_sale = Column(String(32)) 21 | price_regular = Column(String(32)) 22 | created = Column(DateTime, default=created_modified_default, index=True) 23 | 24 | __table_args__ = ( 25 | Index('search_results_cache_num_keyw_idx', 'search_keywords', 'page_num'), 26 | ) 27 | 28 | class SearchTerm(Base): 29 | __tablename__ = 'search_terms' 30 | 31 | id = Column(Integer, primary_key=True, nullable=False) 32 | search_keywords = Column(String(64)) 33 | pages = Column(Integer) 34 | results = Column(Integer) 35 | created = Column(DateTime, default=created_modified_default, index=True) 36 | -------------------------------------------------------------------------------- /app/notifications/__init__.py: -------------------------------------------------------------------------------- 1 | from notifications import * 2 | import importlib 3 | 4 | LOADED_MODULES = {} 5 | 6 | def get_class(name): 7 | if (name not in LOADED_MODULES): 8 | module_path = '%s.%s' % (__name__, name) 9 | lib = importlib.import_module(module_path) 10 | LOADED_MODULES[name] = lib 11 | 12 | return LOADED_MODULES[name].API_NOTIFICATION_CLASS 13 | 14 | 15 | """ 16 | 17 | from app.notifications import * 18 | smtp = get_class('smtp') 19 | 20 | """ 21 | -------------------------------------------------------------------------------- /app/notifications/notifications.py: -------------------------------------------------------------------------------- 1 | 2 | class Notification(object): 3 | def invoke( self, 4 | product, 5 | product_group, 6 | product_price, 7 | invoked_rule=None): pass 8 | 9 | class NotificationManager(object): 10 | def __init__(self): 11 | self.hooks = [] 12 | 13 | def add_hook(self, notify): 14 | if (not hasattr(notify, 'invoke') or 15 | not notify.invoke.__class__.__name__ == 'function'): 16 | raise AttributeError("notify object must have an 'invoke' function " 17 | "attached to it") 18 | 19 | self.hooks.append(notify) 20 | 21 | def send_notification(self): pass 22 | -------------------------------------------------------------------------------- /app/notifications/smtp.py: -------------------------------------------------------------------------------- 1 | from notifications import * 2 | 3 | import smtplib 4 | from email.mime.text import MIMEText 5 | 6 | class SMTP_Notification(Notification): 7 | def __init__(self, host, from_addr, to_addr, **kwargs): 8 | defaults = dict( 9 | local_hostname=None, 10 | keyfile=None, 11 | certfile=None, 12 | user=None, 13 | password=None, 14 | ssl=False, 15 | port=25, 16 | email_subject='Amazon Scraper Notification' 17 | ) 18 | 19 | self.host = host 20 | self.from_addr = from_addr 21 | self.to_addr = to_addr 22 | 23 | for k, v in kwargs.items(): 24 | if k in defaults: 25 | defaults[k] = v 26 | 27 | if defaults['ssl'] == True and 'port' not in kwargs: 28 | defaults['port'] = 465 29 | 30 | for k, v in defaults.items(): 31 | self.__dict__[k] = v 32 | 33 | def invoke( self, 34 | product, 35 | product_group, 36 | product_price, 37 | invoked_rule=None): 38 | 39 | if self.ssl == True: 40 | kwargs = {} 41 | for k in ['host', 'port', 'local_hostname', 'keyfile', 'certfile']: 42 | if self.__dict__[k] is not None: 43 | kwargs[k] = self.__dict__[k] 44 | 45 | mail = smtplib.SMTP_SSL(**kwargs) 46 | else: 47 | kwargs = {} 48 | for k in ['host', 'port', 'local_hostname']: 49 | if self.__dict__[k] is not None: 50 | kwargs[k] = self.__dict__[k] 51 | 52 | mail = smtplib.SMTP(**kwargs) 53 | 54 | if self.user is not None and self.password is not None: 55 | mail.login(self.user, self.password) 56 | 57 | if (not isinstance(self.to_addr, list) and 58 | not isinstance(self.to_addr, tuple)): 59 | self.to_addr = [self.to_addr] 60 | 61 | msg = MIMEText('This is a test') 62 | msg['Subject'] = self.email_subject 63 | msg['From'] = self.from_addr 64 | msg['To'] = self.to_addr[0] 65 | 66 | mail.sendmail(self.from_addr, self.to_addr, msg.as_string()) 67 | 68 | API_NOTIFICATION_CLASS = SMTP_Notification 69 | -------------------------------------------------------------------------------- /app/pricefuncs.py: -------------------------------------------------------------------------------- 1 | 2 | def str_align(string, align, separator=' ', mode='prefix'): 3 | out = str(string) 4 | buf = '' 5 | align = align - len(string) 6 | 7 | for i in range(align): 8 | buf += str(separator) 9 | 10 | if mode == 'prefix': 11 | return buf + out 12 | 13 | return out + buf 14 | 15 | def price_int_to_str(price_int): 16 | a = price_int / 100 17 | b = str(price_int - (a * 100)) 18 | 19 | return '%d.%s' % (a, str_align(b, 2, '0')) 20 | 21 | def price_to_int(price_text): 22 | if price_text is None: 23 | return 0 24 | 25 | if price_text[0] == '$': 26 | price_text = price_text[1:] 27 | 28 | price_parts = price_text.split('.') 29 | return int(price_parts[0]) * 100 + int(price_parts[1]) 30 | -------------------------------------------------------------------------------- /app/scraper/__init__.py: -------------------------------------------------------------------------------- 1 | from wireprotocol import * 2 | from scraper import * 3 | -------------------------------------------------------------------------------- /app/scraper/scraper.py: -------------------------------------------------------------------------------- 1 | 2 | import os, sys, datetime 3 | import sqlite3 4 | import requests 5 | from bs4 import BeautifulSoup 6 | 7 | from app.pricefuncs import price_to_int 8 | 9 | class Scraper(object): 10 | def __init__(self, db_path='./products.db', run_every=3): 11 | self.run_every = run_every 12 | self.db_path = db_path 13 | 14 | def db_factory(self): 15 | return sqlite3.connect(self.db_path) 16 | 17 | @staticmethod 18 | def datetime_now(): 19 | return datetime.datetime.utcnow() 20 | 21 | def get_products_list(self, ALL=False): 22 | """ Get list of products to scrape. By default, this fetches only products 23 | that haven't been scraped in self.run_every hours. If ALL=True, then 24 | it will return all products. """ 25 | 26 | db = self.db_factory() 27 | cursor = db.cursor() 28 | 29 | now = self.datetime_now() 30 | td = datetime.timedelta(hours=self.run_every) 31 | 32 | cursor.execute('SELECT * FROM products') 33 | results = cursor.fetchall() 34 | product_keys = [i[0] for i in cursor.description] 35 | 36 | to_scrape = [] 37 | for res in results: 38 | p = dict(zip(product_keys, res)) 39 | cursor.execute(('SELECT * FROM product_prices WHERE product_id = ? ' 40 | 'ORDER BY created DESC LIMIT 1'), [p['id']]) 41 | 42 | pp_res = cursor.fetchone() 43 | 44 | if ALL: 45 | to_scrape.append(p) 46 | elif pp_res is None: 47 | to_scrape.append(p) 48 | else: 49 | pp = dict(zip([i[0] for i in cursor.description], pp_res)) 50 | ts = datetime.datetime.strptime( 51 | pp['created'], 52 | '%Y-%m-%d %H:%M:%S.%f' 53 | ) 54 | 55 | if (now - ts) >= td: 56 | to_scrape.append(p) 57 | 58 | cursor.close() 59 | db.close() 60 | 61 | return to_scrape 62 | 63 | def scrape_product_info(self, title, url): 64 | try: 65 | r = requests.get(url) 66 | if not r.status_code == 200: 67 | sys.stderr.write('Failed to download product page for: %s\n' % (title)) 68 | return None, None, None 69 | 70 | text = r.text 71 | except Exception: 72 | return None, None, None 73 | 74 | soup = BeautifulSoup(text) 75 | 76 | # Get actual/sale price 77 | try: 78 | price_span = soup.find('span', id='actualPriceValue') 79 | price = str(price_span.contents[0].text) 80 | except Exception: 81 | price = None 82 | 83 | # Get list/regular price 84 | try: 85 | price_value_span = soup.find('span', id='listPriceValue') 86 | price_value = str(price_value_span.contents[0]) 87 | except Exception: 88 | price_value = None 89 | 90 | # Get number available 91 | try: 92 | form_node = soup.find('form', id='handleBuy') 93 | buying_divs = form_node.findAll('div', attrs={'class': 'buying'}) 94 | for div in buying_divs: 95 | avail_green = div.find('span', attrs={'class': 'availGreen'}) 96 | if avail_green is not None: 97 | break 98 | 99 | if avail_green is None: 100 | available = None 101 | else: 102 | avail = str(avail_green.text).lower().strip() 103 | if avail[0:4] == 'only': 104 | parts = avail.split(' ') 105 | available = int(parts[1]) 106 | else: 107 | available = None 108 | except Exception: 109 | available = None 110 | 111 | # Shipping has a few different HTML layouts 112 | shipping = None 113 | for fn in [self.scrape_shipping1, self.scrape_shipping2]: 114 | shipping = fn(soup) 115 | if shipping is not None: 116 | break 117 | 118 | return price, price_value, available, shipping 119 | 120 | def scrape_shipping1(self, soup): 121 | try: 122 | price_qty = soup.find('span', id='pricePlusShippingQty') 123 | plus_shipping = price_qty.find('span', attrs={'class': 'plusShippingText'}) 124 | shipping = self._filter_shipping1(plus_shipping.text) 125 | except Exception as e: 126 | return None 127 | 128 | return shipping 129 | 130 | def scrape_shipping2(self, soup): 131 | try: 132 | sold_by = soup.find('div', id='soldByThirdParty') 133 | shipping_span = sold_by.find('span', attrs={'class': 'shipping3P'}) 134 | shipping = self._filter_shipping1(shipping_span.text) 135 | except Exception as e: 136 | return None 137 | 138 | return shipping 139 | 140 | @staticmethod 141 | def _filter_shipping1(value): 142 | chars = set(['$', '.', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9']) 143 | filtered = '' 144 | 145 | for i in range(len(value)): 146 | v = value[i] 147 | if v in chars: 148 | filtered += v 149 | 150 | if len(filtered) == 0: 151 | return None 152 | 153 | return filtered 154 | 155 | def get_prices(self, wp, products): 156 | """ Download price data for specified products, and write output to 157 | WireProtocol object ('wp' parameter). """ 158 | 159 | now = self.datetime_now() 160 | for p in products: 161 | price, price_regular, items_left, shipping = ( 162 | self.scrape_product_info(p['title'], p['url'])) 163 | 164 | if price is None: 165 | continue 166 | 167 | price_int = price_to_int(price) 168 | price_regular_int = price_to_int(price_regular) 169 | shipping_int = price_to_int(shipping) 170 | 171 | values = [ 172 | p['id'], 173 | price_int, 174 | price_regular_int, 175 | items_left, 176 | shipping_int, 177 | now 178 | ] 179 | 180 | wp.write_tuple(values) 181 | wp.write_finished() 182 | 183 | def save_prices(self, wp): 184 | """ Read product prices from WireProtocol object ('wp' parameter), and save 185 | them to the database. """ 186 | 187 | items = wp.read_stream() 188 | if len(items) == 0: 189 | return 190 | 191 | db = self.db_factory() 192 | cursor = db.cursor() 193 | 194 | keys = [ 195 | 'product_id', 196 | 'price_sale', 197 | 'price_regular', 198 | 'items_left', 199 | 'shipping', 200 | 'created' 201 | ] 202 | 203 | query = 'INSERT INTO product_prices (%s) VALUES (%s)' % ( 204 | ', '.join(keys), 205 | ', '.join(['?' for i in keys]) 206 | ) 207 | 208 | for values in items: 209 | try: 210 | cursor.execute(query, values) 211 | except sqlite3.Error as e: 212 | sys.stderr.write('Failed to write item %s' % (values)) 213 | 214 | db.commit() 215 | cursor.close() 216 | db.close() 217 | -------------------------------------------------------------------------------- /app/scraper/wireprotocol.py: -------------------------------------------------------------------------------- 1 | import os 2 | 3 | class WireProtocol(object): 4 | def __init__(self, r, w, chunksize=1024): 5 | """ Simple CSV-like protocol for use with int and None types ONLY. Using 6 | this with string/bytes or unicode types may result in buggy behavior. 7 | 8 | Parameters 'r' and 'w' should be File Descriptors, capable of being 9 | used by os.read() and os.write(), for instance the ones returned by 10 | os.pipe() or stdin/stdout. """ 11 | 12 | self.r = r 13 | self.w = w 14 | self.chunksize = chunksize 15 | self.written = False 16 | 17 | def write_tuple(self, item): 18 | os.write(self.w, '%s\n' % (','.join([str(i) for i in item]))) 19 | self.written = True 20 | 21 | def write_finished(self): 22 | if self.written: 23 | os.write(self.w, '\n') 24 | else: 25 | os.write(self.w, '\n\n') 26 | 27 | def read_stream(self): 28 | items = [] 29 | buf = '' 30 | 31 | while True: 32 | buf += os.read(self.r, self.chunksize) 33 | if buf[-2:] == '\n\n': 34 | break 35 | 36 | for line in buf.split('\n'): 37 | if line == '': 38 | continue 39 | 40 | row = [] 41 | for item in line.split(','): 42 | if item == 'None': 43 | row.append(None) 44 | else: 45 | try: 46 | row.append(int(item)) 47 | except ValueError: 48 | row.append(item) 49 | 50 | items.append(row) 51 | return items 52 | -------------------------------------------------------------------------------- /app/searcher/__init__.py: -------------------------------------------------------------------------------- 1 | from searcher import * 2 | -------------------------------------------------------------------------------- /app/searcher/searcher.py: -------------------------------------------------------------------------------- 1 | 2 | import datetime, requests, re 3 | from bs4 import BeautifulSoup 4 | from app.db import * 5 | 6 | """ 7 | 8 | #resultCount 9 | Showing 1 - 16 of 1,675 Results 10 | 11 | """ 12 | 13 | class ProductSearcher(object): 14 | def __init__(self, session): 15 | self.session = session 16 | self.url_base = 'http://www.amazon.com/s/ref=nb_sb_noss_2' 17 | 18 | def sanitize_keywords(self, keywords): 19 | return re.sub(r'\s+', ' ', keywords.lower()).strip() 20 | 21 | def prune_cache(self, hours=3): 22 | session = self.session 23 | now = datetime.datetime.utcnow() 24 | diff = datetime.timedelta(hours=hours) 25 | age_filter = now - diff 26 | 27 | results = session.query(SearchResultCached)\ 28 | .filter(SearchResultCached.created < age_filter) 29 | 30 | for r in results: 31 | session.delete(r) 32 | 33 | session.flush() 34 | session.commit() 35 | 36 | def search(self, keywords, category=None, page=1): 37 | session = self.session 38 | keywords = self.sanitize_keywords(keywords) 39 | results = session.query(SearchResultCached)\ 40 | .filter(SearchResultCached.search_keywords == keywords, 41 | SearchResultCached.page_num == page).all() 42 | 43 | if len(results) > 0: 44 | return results 45 | 46 | content = self.download_search_page(keywords, category=category, page=page) 47 | products = self.parse_products(content) 48 | results = [] 49 | 50 | for i in range(len(products)): 51 | p = products[i] 52 | p.update( sort_index=i+1, 53 | page_num=page, 54 | search_keywords=keywords, 55 | created=datetime.datetime.utcnow()) 56 | 57 | sr = SearchResultCached(**p) 58 | session.add(sr) 59 | results.append(sr) 60 | 61 | session.flush() 62 | session.commit() 63 | return results 64 | 65 | def download_search_page(self, keywords, category=None, page=1): 66 | url_params = { 67 | 'url': 'search-alias', 68 | 'field-keywords': keywords, 69 | 'page': page 70 | } 71 | 72 | if category is not None: 73 | url_params['url'] += '=' + category 74 | 75 | r = requests.get(self.url_base, params=url_params) 76 | return r.text 77 | 78 | def parse_products(self, content): 79 | soup = BeautifulSoup(content) 80 | lists = soup.findAll('div', attrs={'class': 'listView'}) 81 | products = [] 82 | 83 | category_pattern = re.compile('[\W]$') 84 | sub_category_pattern = re.compile('^(\s\-)') 85 | 86 | for l in lists: 87 | for p in l.findAll('div', attrs={'class': 'product'}): 88 | product = {} 89 | 90 | title = p.find('div', attrs={'class': 'productTitle'}) 91 | if title is None: 92 | continue 93 | 94 | # 95 | # TODO: Cleanup 96 | # 97 | 98 | try: 99 | category = category_pattern.sub('', p.find('div', attrs={'class': 'store'}).find('span').text) 100 | except Exception: 101 | category = None 102 | 103 | try: 104 | sub_category = sub_category_pattern.sub('', title.findAll('span', attrs={'class': 'binding'})[-1].text).strip() 105 | except Exception: 106 | sub_category = None 107 | 108 | try: 109 | new_sale_price = p.find('div', attrs={'class': 'newPrice'}).find('span').text 110 | except Exception: 111 | new_sale_price = None 112 | 113 | try: 114 | new_reg_price = p.find('div', attrs={'class': 'newPrice'}).find('strike').text 115 | except Exception: 116 | new_reg_price = None 117 | 118 | if new_sale_price is None and new_reg_price is None: 119 | continue 120 | 121 | product['title'] = title.a.text 122 | product['url'] = title.a.get('href') 123 | product['category'] = category 124 | product['sub_category'] = sub_category 125 | product['price_sale'] = new_sale_price 126 | product['price_regular'] = new_reg_price 127 | products.append(product) 128 | 129 | return products 130 | -------------------------------------------------------------------------------- /config.py: -------------------------------------------------------------------------------- 1 | 2 | scraper = { 3 | 'run_every': 3, # Run every X Hours 4 | 'workers': 4, # Number of scraper processes to spawn 5 | 'prune_days': -1, # Prune price data older than X days. -1 to disable 6 | } 7 | 8 | notifications = { 9 | 'backend': ('smtp', { 10 | 'host': 'smtp.gmail.com', # SMTP Host 11 | 'from_addr': 'myemail@gmail.com', # From Address 12 | 'to_addr': 'myemail@gmail.com', # To Address 13 | 'user': None, # User (if login required) 14 | 'password': None, # Password (if login required) 15 | 'ssl': False, # True for SSL 16 | 'port': 25, # SMTP Port 17 | 'email_subject': 'Amazon Scraper Notification', # Email subject line 18 | 'local_hostname': None, # FQDN of local host 19 | 'keyfile': None, 20 | 'certfile': None, 21 | }), 22 | } 23 | 24 | search = { 25 | 'prune_cache': 3 # Prune cache every X hours 26 | } 27 | -------------------------------------------------------------------------------- /font/BPG_Courier.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cleure/Amazon-Scraper/f0ddf68a128eba9cb02a298896e8d7c2d34e990b/font/BPG_Courier.ttf -------------------------------------------------------------------------------- /font/BPG_Courier_Bold.ttf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cleure/Amazon-Scraper/f0ddf68a128eba9cb02a298896e8d7c2d34e990b/font/BPG_Courier_Bold.ttf -------------------------------------------------------------------------------- /list.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | import os, sys, datetime, argparse 4 | 5 | from app.pricefuncs import price_int_to_str, str_align 6 | from app.db import * 7 | session = None 8 | 9 | def print_group(title, group): 10 | print('-'*80) 11 | print('%s in %s' % (title, group)) 12 | print('-'*80) 13 | 14 | def print_product(p): 15 | savings = 0 16 | if p.price_savings is not None: 17 | savings = int(p.price_savings) 18 | else: 19 | return 20 | 21 | print('$%s$%s%s - %s' % ( 22 | str_align(price_int_to_str(p.price_sale), 8, mode='suffix'), 23 | str_align(price_int_to_str(p.price_regular), 8, mode='suffix'), 24 | str_align('($'+price_int_to_str(savings)+')', 8, mode='suffix'), 25 | p.title 26 | ) 27 | ) 28 | 29 | def main(): 30 | global session 31 | 32 | parser = argparse.ArgumentParser() 33 | parser.add_argument( '-n', '--number', 34 | help='Number of items per group to print', 35 | type=int, 36 | default=10) 37 | 38 | args = parser.parse_args() 39 | print_number = args.number 40 | 41 | if args.number is not None: 42 | print_number = args.number 43 | 44 | manager = SessionManager('sqlite:///products.db') 45 | session = manager.session 46 | 47 | groups = session.query(ProductGroup)\ 48 | .order_by(ProductGroup.name) 49 | 50 | sort_modes = [ 51 | ('Cheapest Deals', Product.sort_price), 52 | ('Best Deals', Product.sort_savings.desc()) 53 | ] 54 | 55 | for group in groups: 56 | products = [] 57 | 58 | for sort_title, sort_ctx in sort_modes: 59 | queryobj = session.query(Product)\ 60 | .filter(Product.group_id == group.id)\ 61 | .order_by(sort_ctx)\ 62 | .limit(print_number) 63 | 64 | print_group(sort_title, group.name) 65 | for p in queryobj: 66 | print_product(p) 67 | 68 | sys.exit(0) 69 | 70 | if __name__ == '__main__': 71 | main() 72 | -------------------------------------------------------------------------------- /manage.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | import os, sys, argparse, datetime 4 | from app.db import * 5 | 6 | session = None 7 | 8 | def error_exit(msg): 9 | sys.stderr.write(msg + '\n') 10 | sys.exit(1) 11 | 12 | def action_add(args): 13 | global session 14 | 15 | if args.title is None or args.url is None or args.group is None: 16 | error_exit('Arguments title, group, and url are required for action "add"') 17 | 18 | pg = session.query(ProductGroup)\ 19 | .filter(ProductGroup.name == args.group)\ 20 | .first() 21 | 22 | if pg is None: 23 | pg = ProductGroup(name=str(args.group)) 24 | session.add(pg) 25 | session.flush() 26 | 27 | product = Product(title=args.title, url=args.url, group_id=pg.id) 28 | session.add(product) 29 | session.commit() 30 | 31 | def action_update(args): 32 | global session 33 | 34 | if args.id is None: 35 | error_exit('--id is required for action "update"') 36 | 37 | if args.title is None and args.group is None and args.url is None: 38 | error_exit('One of title, url, group is required for action "update"') 39 | 40 | product = session.query(Product)\ 41 | .filter(Product.id == args.id)\ 42 | .first() 43 | 44 | if args.group is not None: 45 | pg = session.query(ProductGroup)\ 46 | .filter(ProductGroup.name == args.group)\ 47 | .first() 48 | 49 | if pg is None: 50 | pg = ProductGroup(name=args.group) 51 | session.add(pg) 52 | session.flush() 53 | 54 | product.group_id = pg.id 55 | 56 | if args.url is not None: 57 | product.url = args.url 58 | 59 | if args.title is not None: 60 | product.title = args.title 61 | 62 | session.add(product) 63 | session.commit() 64 | 65 | def action_remove(args): 66 | global session 67 | 68 | if args.id is None: 69 | error_exit('--id is required for action "remove"') 70 | 71 | product = session.query(Product)\ 72 | .filter(Product.id == args.id)\ 73 | .first() 74 | 75 | if product is None: 76 | error_exit('No such product titled "%s"' % (args.title)) 77 | 78 | session.delete(product) 79 | session.commit() 80 | 81 | def action_list(args): 82 | global session 83 | 84 | queryobj = session.query(Product, ProductGroup)\ 85 | .join(ProductGroup, Product.group_id == ProductGroup.id)\ 86 | .order_by(ProductGroup.name, Product.title) 87 | 88 | if args.group is not None: 89 | queryobj = queryobj.filter(ProductGroup.name == str(args.group)) 90 | 91 | if args.broken == True: 92 | queryobj = queryobj.filter(Product.broken == 1) 93 | 94 | products = queryobj.all() 95 | last_group = None 96 | for p, g in products: 97 | pp = session.query(ProductPrice)\ 98 | .filter(ProductPrice.product_id == p.id)\ 99 | .order_by(ProductPrice.created.desc())\ 100 | .limit(1)\ 101 | .first() 102 | 103 | if not g.name == last_group: 104 | print('-'*80) 105 | last_group = g.name 106 | 107 | last_fetch = ' N/A' 108 | if pp is not None: 109 | last_fetch = pp.created.strftime('%Y-%m-%d') 110 | 111 | print('%s\t| %s | %s | %s' % (p.id, last_fetch, g.name, p.title)) 112 | 113 | def action_prune(args): 114 | """ Delete hanging references to deleted objects. """ 115 | global session 116 | 117 | # Prune Product Groups 118 | pgs = session.query(ProductGroup).all() 119 | for pg in pgs: 120 | test = session.query(Product)\ 121 | .filter(Product.group_id == pg.id)\ 122 | .first() 123 | 124 | if test is None: 125 | session.delete(pg) 126 | 127 | # Prune Product Price data 128 | pps = session.query(ProductPrice).all() 129 | for pp in pps: 130 | test = session.query(Product)\ 131 | .filter(Product.id == pp.product_id)\ 132 | .first() 133 | 134 | if test is None: 135 | session.delete(pp) 136 | 137 | session.commit() 138 | 139 | def main(): 140 | global session 141 | 142 | fntable = { 143 | 'add': action_add, 144 | 'update': action_update, 145 | 'remove': action_remove, 146 | 'list': action_list, 147 | 'prune': action_prune 148 | } 149 | 150 | manager = SessionManager('sqlite:///products.db') 151 | session = manager.session 152 | 153 | parser = argparse.ArgumentParser() 154 | parser.add_argument( 'action', 155 | help='Available Actions: add, update, remove, list, prune', 156 | choices=['add', 'update', 'remove', 'list', 'prune']) 157 | 158 | parser.add_argument('--id', help='ID of Product (for update/remove)') 159 | parser.add_argument('--title', help='Title of Product') 160 | parser.add_argument('--group', help='Name of Group product should be in') 161 | parser.add_argument('--url', help='URL of Product') 162 | parser.add_argument('--broken', action='store_true', help='URL of Product') 163 | 164 | args = parser.parse_args() 165 | fntable[args.action](args) 166 | sys.exit(0) 167 | 168 | if __name__ == '__main__': 169 | main() 170 | -------------------------------------------------------------------------------- /plot-days.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | # -*- coding: utf-8 -*- 3 | 4 | import os, sys, datetime, argparse 5 | from operator import itemgetter 6 | from app.db import * 7 | from PIL import Image, ImageDraw, ImageFont 8 | 9 | try: 10 | import queue 11 | except ImportError: 12 | import Queue as queue 13 | 14 | session = None 15 | 16 | def price2str(price): 17 | a = price / 100 18 | b = price - (a * 100) 19 | return '$' + str(a) + '.' + str(b) 20 | 21 | def plot_days(product, width=640): 22 | def itox(i): 23 | return int(int(i * x_scale) * woff[0] + (height * woff[1])) 24 | 25 | def price2y(price): 26 | c = int((price - _min) * y_scale) 27 | return int((abs(c - height) - 1) * hoff[0] + (height * hoff[1])) 28 | 29 | # Automatically create paths if they dont exist 30 | if not os.path.exists('private'): 31 | os.mkdir('private') 32 | 33 | if not os.path.exists('private/days'): 34 | os.mkdir('private/days') 35 | 36 | # Output path for image 37 | path = os.path.join('private/days', str(product.id) + '.png') 38 | 39 | # Product group (used in graph title) 40 | product_group = session.query(ProductGroup)\ 41 | .filter(ProductGroup.id == product.group_id)\ 42 | .first() 43 | 44 | # Most recent product_prices entry 45 | most_recent = session.query(ProductPrice)\ 46 | .filter(ProductPrice.product_id == product.id)\ 47 | .order_by(ProductPrice.created.desc())\ 48 | .limit(1)\ 49 | .first() 50 | 51 | # Data points for graph 52 | pps = session.query(ProductPriceHistory)\ 53 | .filter(ProductPriceHistory.product_id == product.id)\ 54 | .order_by(ProductPriceHistory.date_of.desc())\ 55 | .limit(30).all() 56 | 57 | pps.reverse() 58 | if len(pps) == 0: 59 | return 60 | 61 | _min = pps[0].price 62 | _max = pps[0].price 63 | _min_pp = pps[0] 64 | _max_pp = pps[0] 65 | 66 | for pp in pps: 67 | if pp.price < _min: 68 | _min = pp.price 69 | _min_pp = pp 70 | if pp.price > _max: 71 | _max = pp.price 72 | _max_pp = pp 73 | 74 | if _max - _min < 3: 75 | _max = (_max + 1) * 2 76 | 77 | # Graph title 78 | graph_title_color = (255, 255, 255) 79 | graph_subtitle_color = graph_title_color 80 | graph_title = '(%s) %s' % (product_group.name, product.title) 81 | graph_sub_title = '' 82 | 83 | # Sub title 84 | if most_recent is not None: 85 | mrp = most_recent.price_sale 86 | if most_recent.shipping: 87 | try: 88 | mrp += int(most_recent.shipping) 89 | except ValueError: pass 90 | 91 | if product.trending == 'U': 92 | trending_text = 'up +%s' % (product.trending_dist) 93 | graph_subtitle_color = (255, 32, 32) 94 | elif product.trending == 'D': 95 | trending_text = 'down -%s' % (product.trending_dist) 96 | graph_subtitle_color = (32, 255, 32) 97 | else: 98 | trending_text = 'stable %s' % (product.trending_dist) 99 | graph_subtitle_color = (192, 192, 192) 100 | 101 | graph_sub_title = ' Most Recent: %s (%s)' % (price2str(mrp), trending_text) 102 | 103 | # Date start/end labels 104 | date_st = pps[0].date_of.strftime('%Y-%m-%d') 105 | date_en = pps[-1].date_of.strftime('%Y-%m-%d') 106 | 107 | # Calculate dimensions 108 | height = int(width * 0.5) 109 | font_size_sm = int(width * 0.0171875) 110 | font_size_lg = int(width * 0.025) 111 | point_radius = int(width * 0.0046875) 112 | line_width = int(width * 0.0015625) 113 | 114 | padding = ( 115 | font_size_sm * 4, 116 | font_size_sm // 2, 117 | font_size_sm * 6, 118 | font_size_sm * 0.7272727272727273, 119 | width * 0.00625, # Text X/Y Padding (left align) 120 | width * 0.00625 + font_size_lg * 1.05, # Sub-Title Y Padding 121 | ) 122 | 123 | # Draw offsets 124 | draw_height = int(height / 2) 125 | woff = (0.92, 0.17) 126 | hoff = (0.5, 0.25) 127 | 128 | # Scales 129 | min_max = (float(_max) - float(_min)) + 1 130 | x_scale = float(width) / float(len(pps)) 131 | y_scale = float(height) / min_max 132 | 133 | # Create image/draw/font instances 134 | b = Image.new('RGB', (width, height)) 135 | draw = ImageDraw.Draw(b) 136 | font_sm = ImageFont.truetype('font/BPG_Courier.ttf', font_size_sm) 137 | font_lg = ImageFont.truetype('font/BPG_Courier.ttf', font_size_lg) 138 | 139 | min_y = price2y(_min) 140 | max_y = price2y(_max) 141 | 142 | # Draw graph background 143 | for x in range(len(pps)): 144 | xx = itox(x) 145 | draw.line((xx, min_y, xx, max_y), (64, 64, 64), width=line_width) 146 | 147 | # Graph corner x/y pairs 148 | xs = itox(0), itox(len(pps)-1) 149 | ys = min_y, max_y 150 | 151 | # Draw graph border 152 | draw.line((xs[0], ys[0], xs[1], ys[0]), (128, 128, 128), width=line_width) 153 | draw.line((xs[0], ys[1], xs[1], ys[1]), (128, 128, 128), width=line_width) 154 | draw.line((xs[0], ys[0], xs[0], ys[1]), (128, 128, 128), width=line_width) 155 | draw.line((xs[1], ys[0], xs[1], ys[1]), (128, 128, 128), width=line_width) 156 | 157 | # Render title and labels 158 | draw.text((padding[4], padding[4]), graph_title, font=font_lg, fill=graph_title_color) 159 | draw.text((padding[4], padding[5]), graph_sub_title, font=font_lg, fill=graph_subtitle_color) 160 | draw.text((padding[4], ys[0]-padding[1]), price2str(_min_pp.price), font=font_sm) 161 | draw.text((padding[4], ys[1]-padding[1]), price2str(_max_pp.price), font=font_sm) 162 | draw.text((xs[0], ys[0]+padding[3]), date_st, font=font_sm) 163 | draw.text((xs[1]-padding[2], ys[0]+padding[3]), date_en, font=font_sm) 164 | 165 | # Process x/y points 166 | points = queue.Queue() 167 | for x in range(len(pps)): 168 | pp = pps[x] 169 | xx = itox(x) 170 | yy = price2y(pp.price) 171 | points.put((xx, yy)) 172 | 173 | # Plot graph points at x/y 174 | ellipse_box = ( 175 | xx-point_radius, yy-point_radius, 176 | xx+point_radius, yy+point_radius) 177 | 178 | draw.ellipse(ellipse_box, outline=(255, 255, 255)) 179 | 180 | # Plot graph lines 181 | pa = points.get() 182 | while not points.empty(): 183 | pb = points.get() 184 | draw.line((pa[0], pa[1], pb[0], pb[1]), (255, 255, 255), width=line_width) 185 | pa = pb 186 | 187 | b.save(path) 188 | 189 | def main(): 190 | global session 191 | 192 | manager = SessionManager('sqlite:///products.db') 193 | session = manager.session 194 | 195 | for p in session.query(Product): 196 | plot_days(p, width=1000) 197 | 198 | sys.exit(0) 199 | 200 | if __name__ == '__main__': 201 | main() 202 | -------------------------------------------------------------------------------- /process.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | import os, sys, datetime, argparse 4 | from operator import itemgetter 5 | from app.db import * 6 | import config 7 | 8 | session = None 9 | 10 | def most_common(values, keyidx=None): 11 | """ Mode filter, which falls back to Median when there are multiple items 12 | which are 'most common'. """ 13 | 14 | counts = {v: 0 for v in values} 15 | for v in values: 16 | counts[v] += 1 17 | 18 | if keyidx is None or not isinstance(keyidx, int): 19 | _sorted = sorted(list(counts.items()), reverse=True) 20 | else: 21 | _sorted = sorted(list(counts.items()), key=itemgetter(keyidx), reverse=True) 22 | 23 | last = _sorted[0][1] 24 | median = [] 25 | 26 | for i in _sorted: 27 | if not i[1] == last: 28 | break 29 | median.append(i[0]) 30 | 31 | median.sort() 32 | return median[int(len(median)//2)] 33 | 34 | def get_trending(history): 35 | """ Get current trend, and its distance. history parameter should be a list 36 | of numbers, ordered by time descending. Returns tuple(trend, dist). """ 37 | 38 | a = history[0] 39 | dist = 0 40 | trend = None 41 | _cur_trend = None 42 | 43 | for b in history[1:]: 44 | _cur_trend = 'U' if a > b else 'D' if a < b else 'S' 45 | if trend is None: 46 | trend = _cur_trend 47 | elif not _cur_trend == trend: 48 | break 49 | 50 | dist += 1 51 | 52 | return (trend, dist) 53 | 54 | def reindex_products(): 55 | global session 56 | 57 | now = datetime.datetime.utcnow() 58 | td = datetime.timedelta(days=7) 59 | 60 | products = session.query(Product) 61 | for p in products: 62 | pp = session.query(ProductPrice)\ 63 | .filter(ProductPrice.product_id == p.id)\ 64 | .order_by(ProductPrice.created.desc())\ 65 | .first() 66 | 67 | # Update broken field 68 | if pp.created < (now - td): 69 | p.broken = 1 70 | else: 71 | p.broken = 0 72 | 73 | price = pp.price_sale 74 | regular = pp.price_regular 75 | 76 | # Add shipping 77 | if pp.shipping is not None and pp.shipping > 0: 78 | price += pp.shipping 79 | if regular is not None and regular > 0: 80 | regular += pp.shipping 81 | 82 | # Calculate savings 83 | if regular is not None and regular > price: 84 | savings = regular - price 85 | else: 86 | regular = int(price) 87 | savings = 0 88 | 89 | # Calculate Trending 90 | res = session.query(ProductPriceHistory)\ 91 | .filter(ProductPriceHistory.product_id == p.id)\ 92 | .order_by(ProductPriceHistory.date_of.desc())\ 93 | .limit(30)\ 94 | .all() 95 | 96 | if res is not None: 97 | trending, trending_dist = get_trending([i.price for i in res]) 98 | else: 99 | trending = None 100 | trending_dist = 0 101 | 102 | p.trending = trending 103 | p.trending_dist = trending_dist 104 | p.price_sale = price 105 | p.price_regular = regular 106 | p.price_savings = savings 107 | p.sort_price = price 108 | p.sort_savings = savings 109 | session.add(p) 110 | 111 | session.flush() 112 | session.commit() 113 | 114 | def index_daily_history(): 115 | global session 116 | 117 | products = session.query(Product) 118 | for p in products: 119 | most_recent = session.query(ProductPriceHistory.date_of)\ 120 | .filter( ProductPriceHistory.product_id == p.id, 121 | ProductPriceHistory.date_range == 'D')\ 122 | .order_by(ProductPriceHistory.date_of.desc())\ 123 | .limit(1)\ 124 | .first() 125 | 126 | if most_recent is None: 127 | # Does not contain any entries... Create them. 128 | 129 | pps = session.query(ProductPrice.price_sale, 130 | ProductPrice.shipping, 131 | ProductPrice.created)\ 132 | .order_by(ProductPrice.created.desc())\ 133 | .filter(ProductPrice.product_id == p.id) 134 | else: 135 | # Contains previous entries. Calculate previous day, if not 136 | # already processed. 137 | 138 | where = ( 'product_id = :id AND ' 139 | 'created > :date_of') 140 | 141 | where_date_of = datetime.date(most_recent.date_of.year, 142 | most_recent.date_of.month, 143 | most_recent.date_of.day) 144 | 145 | where_date_of += datetime.timedelta(days=1) 146 | 147 | pps = session.query(ProductPrice.price_sale, 148 | ProductPrice.shipping, 149 | ProductPrice.created)\ 150 | .order_by(ProductPrice.created.desc())\ 151 | .filter(where)\ 152 | .params(id=p.id, date_of=str(where_date_of)) 153 | 154 | daily = {} 155 | for pp in pps: 156 | idx = (pp.created.year, pp.created.month, pp.created.day) 157 | if idx not in daily: 158 | daily[idx] = [] 159 | daily[idx].append(pp) 160 | 161 | for k, v in daily.items(): 162 | v = most_common(v, keyidx=1) 163 | ph = ProductPriceHistory( 164 | product_id=p.id, 165 | price=(v.price_sale + v.shipping), 166 | date_range='D', 167 | date_of = datetime.datetime(*k) 168 | ) 169 | 170 | session.add(ph) 171 | 172 | session.flush() 173 | session.commit() 174 | 175 | def prune_price_data(): 176 | global session 177 | 178 | # Don't prune data? 179 | if (not isinstance(config.scraper['prune_days'], int) or 180 | config.scraper['prune_days'] <= 0): 181 | return 182 | 183 | td = datetime.timedelta(days=config.scraper['prune_days']) 184 | ts = datetime.datetime.utcnow() - td 185 | rows = 0 186 | 187 | for p in session.query(Product): 188 | pph = session.query(ProductPriceHistory)\ 189 | .filter(ProductPriceHistory.date_range == 'D')\ 190 | .order_by(ProductPriceHistory.date_of.desc())\ 191 | .first() 192 | 193 | # Check that item has been processed 194 | if pph is None or pph.date_of < ts: 195 | continue 196 | 197 | # Delete old ProductPrice entries 198 | res = session.query(ProductPrice)\ 199 | .filter(ProductPrice.product_id == p.id, 200 | ProductPrice.created < ts).delete() 201 | 202 | # Increment deleted rows 203 | if isinstance(res, int): 204 | rows += res 205 | 206 | return rows 207 | 208 | def index_monthly_history(): 209 | global session 210 | pass 211 | 212 | def index_history(): 213 | 214 | 215 | """ 216 | 217 | TODO: 218 | Calculate monthly: 219 | - select weekly items from product_price_history for given (past) month. 220 | - Perform most_common() for each result list. 221 | - Result of most_common() is monthly. 222 | 223 | """ 224 | 225 | index_daily_history() 226 | 227 | def main(): 228 | global session 229 | 230 | manager = SessionManager('sqlite:///products.db') 231 | session = manager.session 232 | 233 | index_history() 234 | reindex_products() 235 | prune_price_data() 236 | 237 | if __name__ == '__main__': 238 | main() 239 | -------------------------------------------------------------------------------- /scrape.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | import os, sys, math, time, Queue 4 | 5 | import config 6 | from app.iterfuncs import chunks 7 | from app.scraper import WireProtocol, Scraper 8 | 9 | def main(): 10 | scraper = Scraper( 11 | db_path='./products.db', 12 | run_every=config.scraper['run_every'] 13 | ) 14 | 15 | products = scraper.get_products_list() 16 | if len(products) == 0: 17 | return False 18 | 19 | n_workers = config.scraper['workers'] 20 | n_groups = int(math.ceil(float(len(products)) / float(n_workers))) 21 | 22 | groups = list(chunks(products, n_groups)) 23 | workers = Queue.Queue() 24 | 25 | for i in range(n_workers): 26 | if i >= n_groups: 27 | break 28 | 29 | wp = WireProtocol(*os.pipe()) 30 | pid = os.fork() 31 | 32 | if pid == 0: 33 | scraper.get_prices(wp, groups[i]) 34 | sys.exit(0) 35 | 36 | workers.put((pid, wp)) 37 | 38 | while not workers.empty(): 39 | pid, wp = workers.get() 40 | scraper.save_prices(wp) 41 | 42 | try: 43 | os.waitpid(pid, 0) 44 | except OSError: 45 | pass 46 | 47 | sys.stdout.flush() 48 | sys.stderr.flush() 49 | 50 | return True 51 | 52 | if __name__ == '__main__': 53 | # Auto-change directory 54 | name = sys.argv[0] 55 | dir_path = os.path.dirname(name) 56 | 57 | if not dir_path == '': 58 | os.chdir(dir_path) 59 | 60 | if main() == True: 61 | # Do data processing 62 | import process 63 | process.main() 64 | 65 | sys.exit(0) 66 | -------------------------------------------------------------------------------- /search.py: -------------------------------------------------------------------------------- 1 | import os, sys, datetime, argparse 2 | import requests, re 3 | from bs4 import BeautifulSoup 4 | from app.db import * 5 | from app.searcher import * 6 | import config 7 | 8 | """ 9 | 10 | TODO: 11 | - Show number of search results/pages 12 | - Ability to add product based on search result 13 | - Search Terms needs its own table, to not break caching between departments. 14 | 15 | """ 16 | 17 | session = None 18 | product_searcher = None 19 | 20 | def action_search(args): 21 | global session, product_searcher 22 | 23 | if args.keywords is None: 24 | raise ArgumentError('Action search requires --keywords argument') 25 | 26 | if args.page is not None: 27 | page = int(args.page) 28 | else: 29 | page = 1 30 | 31 | keywords = args.keywords 32 | results = product_searcher.search( 33 | keywords, 34 | category=args.category, 35 | page=page) 36 | 37 | columns = [ 38 | ('id', 'SEARCH RESULT ID'), 39 | ('price_sale', 'Price (Sale)'), 40 | ('price_regular', 'Price'), 41 | ('category', 'Category'), 42 | ('sub_category', 'Sub-Category'), 43 | ('url', 'URL'), 44 | ] 45 | 46 | for r in results: 47 | print('') 48 | print(r.title.strip()) 49 | print('=' * 80) 50 | for field, label in columns: 51 | print('%s: %s' % (label, getattr(r, field))) 52 | 53 | def action_add(args): 54 | global session, product_searcher 55 | 56 | def action_prune(args): 57 | global session, product_searcher 58 | 59 | def main(): 60 | global session, product_searcher 61 | 62 | fntable = { 63 | 'search': action_search, 64 | 'add': action_add, 65 | 'prune': action_prune 66 | } 67 | 68 | parser = argparse.ArgumentParser() 69 | parser.add_argument( 'action', 70 | help='Available Actions: search, add, prune', 71 | choices=['search', 'prune', 'add']) 72 | 73 | parser.add_argument('--id', help='ID for Search Result to add') 74 | parser.add_argument('--keywords', help='Keywords to search for') 75 | parser.add_argument('--category', help='Category/Department to perform search in') 76 | parser.add_argument('--page', help='Page of search results') 77 | args = parser.parse_args() 78 | 79 | manager = SessionManager('sqlite:///products.db') 80 | session = manager.session 81 | 82 | product_searcher = ProductSearcher(session) 83 | product_searcher.prune_cache(config.search['prune_cache']) 84 | 85 | fntable[args.action](args) 86 | sys.exit(0) 87 | 88 | if __name__ == '__main__': 89 | main() 90 | --------------------------------------------------------------------------------