""" Flask Documentation: http://flask.pocoo.org/docs/ Jinja2 Documentation: http://jinja.pocoo.org/2/documentation/ Werkzeug Documentation: http://werkzeug.pocoo.org/documentation/ This file creates your application. """ from app import app, db, socketio, DOMAIN from flask import Flask, Response, render_template, request, redirect, url_for, flash, send_from_directory, jsonify, abort import json from sqlalchemy.sql.expression import func, select from app.forms import UploadForm, EditForm, SearchForm, ChatForm from app.models import Book, BookSchema, Author, AuthorSchema, Stack, StackSchema, UserIns, Chat, ChatSchema, Instance from app.cover import get_cover from app.extractText import extract_text from os import environ from flask_socketio import SocketIO, emit import datetime import time from csv import DictWriter, DictReader import io from sqlalchemy.inspection import inspect import os from werkzeug.utils import secure_filename # import sqlite3 ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'epub', 'chm', 'mobi']) author_schema = AuthorSchema() authors_schema = AuthorSchema(many=True) book_schema = BookSchema() books_schema = BookSchema(many=True) stack_schema = StackSchema() stacks_schema = StackSchema(many=True) chat_schema = ChatSchema() chats_schema = ChatSchema(many=True) def allowed_file(filename): return '.' in filename and \ filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS ### # Routing for your application. ### @app.route('/', methods= ['POST','GET']) def home(): chat_form = ChatForm() chat_messages = db.session.query(Chat).all() # if request.method == 'POST': # if chat_form.validate_on_submit(): # message = chat_form.message.data # msg = Chat(message) # db.session.add(msg) # db.session.commit() #client = request.remote_addr server = request.host if request.environ.get('HTTP_X_FORWARDED_FOR') is None: client =request.environ['REMOTE_ADDR'] else: client = request.environ['HTTP_X_FORWARDED_FOR'] return render_template('home.html',domain=DOMAIN,chat=chat_messages, channel = 1, username="librarian", client=client, server=server) @app.route('/hello/') def hello(name): return "Hello " + name @app.route('/about/') def about(): """Render the website's about page.""" return render_template('about.html', name="Mary Jane") @app.route('/uploads/') def uploaded_file(filename): book = Book.query.filter_by(file=filename).first() i = Instance(request.host, "download") existing_ip = db.session.query(Instance).filter_by(ip=request.host).first() if existing_ip: i.name = existing_ip.name book.instances.append(i) db.session.commit() return send_from_directory(app.config['UPLOAD_FOLDER'], filename) @app.route('/uploads/cover/') def uploaded_file_cover(filename): return send_from_directory(app.config['UPLOAD_FOLDER_COVER'], filename) @app.route('/updates', methods=['POST', 'GET']) def get_updates(): userin = UserIns.query.filter_by(title="lastViewed").first() allbooks = db.session.query(Book).all() id = len(allbooks) latest_upload = allbooks[-1] return "This is the XPPL ~ Library XPUB ~ Updates / / / / / / / Last viewed: " + userin.info + " / / / / / / / " + str(len(allbooks)) + " Books online "+ " / / / / / / / " + "Latest upload: " + latest_upload.title @app.route('/scape', methods=['POST', 'GET']) def scape(): if request.method == 'POST': data = request.form book = Book.query.get(data['id']) print(book.scapeX) book.scapeX = data['x'] book.scapeY = data['y'] db.session.commit() books = db.session.query(Book).all() # or you could have used User.query.all() all_instances = db.session.query(Instance).all() instances = [] for instance in all_instances: exists = False for existing_inst in instances: if existing_inst.name == instance.name: exists = True break else: exists = False if not exists: instances.append(instance) return render_template('scape.html', books=books, instances=instances) @app.route('/books_grid') def show_books_grid(): books = db.session.query(Book).all() # or you could have used User.query.all() return render_template('show_books_grid.html', books=books) @app.route('/books/') def show_book_by_id(id): book = Book.query.get(id) all_instances = db.session.query(Instance).all() userin = UserIns.query.filter_by(title="lastViewed").first() if userin != None: userin.info = book.title db.session.commit() else: user_info = UserIns("lastViewed", book.title) db.session.add(user_info) db.session.commit() if not book: return render_template('red_link.html', id=id) else: return render_template('show_book_detail.html', book=book, all_instances=all_instances) @app.route('/books//delete', methods=['POST', 'GET']) def remove_book_by_id(id): book_to_edit = Book.query.filter_by(id=id).first() title = book_to_edit.title Book.query.filter_by(id=id).delete() #author_table = Author.query.filter_by(book_id=book_to_edit.id).delete() db.session.commit() flash("%s deleted from library" % (title)) return redirect(url_for('show_books')) @app.route('/books//edit', methods=['POST', 'GET']) def edit_book_by_id(id): book_to_edit = Book.query.filter_by(id=id).first() user_form = EditForm(title = book_to_edit.title, author =book_to_edit.authors, category = book_to_edit.category, year_published= book_to_edit.year_published) if request.method == 'POST': if user_form.validate_on_submit(): # check if the post request has the file part title = user_form.title.data # You could also have used request.form['name'] input_authors = user_form.author.data # You could also have used request.form['email'] category = user_form.category.data year_published = user_form.year_published.data if year_published=="": year_published = None # save user to database #book = Book(title, author, filename, cover, file_extension) book = Book.query.filter_by(id=id).first() book.title = title book.category = category book.year_published = year_published #authors update book.authors.clear() for i, author in enumerate(input_authors): author_name = author.get("author_name") if author_name: a = db.session.query(Author).filter_by(author_name=author_name).first() if a == None: a = Author(author_name=author_name) db.session.add(a) book.authors.append(a) i = Instance(request.host, "edit") existing_ip = db.session.query(Instance).filter_by(ip=request.host).first() if existing_ip: i.name = existing_ip.name book.instances.append(i) db.session.commit() flash("%s updated" % (title)) return redirect(url_for('show_book_by_id', id=id)) return render_template('edit_book_detail.html', book=book_to_edit, form=user_form) @app.route('/add-book', methods=['POST', 'GET']) def add_book(): upload_form = UploadForm() if request.method == 'POST': if upload_form.validate_on_submit(): #get data from form title = upload_form.title.data authors = upload_form.author.data category = upload_form.category.data year_published = upload_form.year_published.data if year_published=="": year_published = None #if upload with file if upload_form.upload.data: # check if the post request has the file part if 'file' not in request.files: flash('No file part') return redirect(request.url) file = request.files['file'] # if user does not select file, browser also # submit a empty part without filename if file.filename == '': flash('No selected file') return redirect(request.url) if file and allowed_file(file.filename): filename = secure_filename(file.filename) allbooks = db.session.query(Book).all() id = len(allbooks)+1 new_filename = str(id) +"_"+ filename fullpath = os.path.join(app.config['UPLOAD_FOLDER'], new_filename) name, file_extension = os.path.splitext(new_filename) file.save(fullpath) try: cover = get_cover(fullpath, name) except: cover = '' extract_text(fullpath, name) else: flash('allowed file formats: %s' % ALLOWED_EXTENSIONS) #if upload without file -> wishform, with potential PDF if upload_form.wish.data: #TO DO: make pdf generator #file = open('app/uploads/potential.pdf') #filename = 'potential.pdf' #file_extension = '.pdf' filename = '' file_extension = '' cover = '' book = Book(title, filename, cover, file_extension, category,year_published) db.session.add(book) for author in authors: author_name = author.get("author_name") if author_name: a = db.session.query(Author).filter_by(author_name=author_name).first() if a == None: a = Author(author_name=author_name) db.session.add(a) book.authors.append(a) i = Instance(request.host, "add") existing_ip = db.session.query(Instance).filter_by(ip=request.host).first() if existing_ip: i.name = existing_ip.name book.instances.append(i) db.session.commit() flash("%s added to the library" % (title)) return redirect(url_for('show_books')) flash_errors(upload_form) return render_template('add_book.html', form=upload_form) # Flash errors from the form if validation fails def flash_errors(form): for field, errors in form.errors.items(): for error in errors: flash(u"Error in the %s field - %s" % ( getattr(form, field).label.text, error )) #Authors @app.route('/authors/') def show_author_by_id(id): author = Author.query.get(id) if not author: abort (404) else: return render_template('show_author_detail.html', author=author) @app.route('/authors//edit', methods=['POST', 'GET']) def edit_author_by_id(id): return "Ask the programmer." ##stacks @app.route('/stacks') def show_stacks(): stacks = db.session.query(Stack).all() return render_template('show_stacks.html', stacks=stacks) @app.route('/stacks/', methods=['POST', 'GET']) def show_stack_by_id(id): stack = Stack.query.get(id) if not stack: abort (404) else: return render_template('show_stack_detail.html', stack=stack) @app.route('/instances', methods=['POST', 'GET']) def show_instances(): all_instances = db.session.query(Instance).all() instances = [] for instance in all_instances: exists = False for existing_inst in instances: if existing_inst.name == instance.name: exists = True break else: exists = False if not exists: instances.append(instance) if request.method == 'POST': for item in request.form.items(): for i, itm in enumerate(item): if i == 0: oldname = itm if i == 1: name = itm all_instances = db.session.query(Instance).filter_by(name=oldname).all() for instance in all_instances: instance.name = name print(oldname) print(name) db.session.commit() return render_template('show_instances.html', instances=instances) ## search @app.route('/books', methods= ['POST','GET']) def show_books(): books = db.session.query(Book).all() search = SearchForm(request.form) if request.method == 'POST': return redirect((url_for('search_results', searchtype=search.select.data, query=search.search.data))) return render_template('show_books.html', books=books, form=search) @app.route('/search///', methods=['POST', 'GET']) def search_results(searchtype, query): search = SearchForm(request.form) random_order=Book.query.order_by(func.random()).limit(10) results=Book.query.filter(Book.title.contains(query)).all() if searchtype == 'Title': results=Book.query.filter(Book.title.contains(query)).all() if searchtype == 'Category': results=Book.query.filter(Book.category.contains(query)).all() if searchtype== 'All': results=Book.query.whoosh_search(query).all() if not results: upload_form = UploadForm(title= query, author='') return render_template('red_link.html', form=upload_form, title=query) if request.method == 'POST': query = search.search.data results = [] return redirect((url_for('search_results', searchtype=search.select.data, query=search.search.data))) return render_template('results.html', form=search, books=results, books_all=random_order, searchtype=search.select.data, query=query) @app.route('/export/csv', methods=['GET']) def export_csv(): output = io.StringIO() #fieldnames = ['title', 'authors', 'file', 'fileformat', 'category', 'year_published', 'description' ] fields = Book.__mapper__.columns fieldnames = [] for columns in fields: fieldnames.append(columns.name) i = inspect(Book) referred_classes = [r.mapper.class_ for r in i.relationships] referred_classes_tablenames = [r.mapper.class_.__tablename__ for r in i.relationships] print(fieldnames+referred_classes_tablenames) csv = DictWriter(output,fieldnames+referred_classes_tablenames) csv.writeheader() for book in Book.query.order_by("title"): row = {} for col in fieldnames: print(getattr(book, col)) row[col] = getattr(book, col) for col in referred_classes: subattr = [] for subcol in getattr(book, col.__tablename__): for metacol in subcol.__mapper__.columns: query = metacol.name if query != "id": this = getattr(subcol, query) subattr.append(this) row[col.__tablename__] = " | ".join(subattr) csv.writerow(row) #print(row) resp = Response(output.getvalue(), mimetype="text/csv") resp.headers["Content-Disposition"] = "attachment;filename=export.csv" return resp import codecs @app.route('/import/csv', methods= ['POST','GET']) def import_csv(): if request.method == 'POST': if 'file' not in request.files: flash('No file part') return redirect(request.url) else: file = request.files['file'] for row in DictReader(codecs.iterdecode(file, 'utf-8')): numberadded = 0; book = Book.query.filter_by(title=row['title']).first() if book: print("allreadyexists") else: cover = '' if row['file']: fullpath = os.path.join(app.config['UPLOAD_FOLDER'], row['file']) name, file_extension = os.path.splitext(row['file']) print ('get_cover', fullpath, name) cover = get_cover(fullpath, name) if row['year_published']: year_published = int(row['year_published']) else: year_published = None; book = Book(row['title'], row['file'], cover, row['fileformat'], row['category'],year_published) book.scapeX = float(row['scapeX']) book.scapeY = float(row['scapeY']) db.session.add(book) numberadded = numberadded+1 authors = row['authors'].split('|') authors = [x.strip() for x in authors] for author in authors: if author: a = db.session.query(Author).filter_by(author_name=author).first() if a == None: a = Author(author_name=author) db.session.add(a) book.authors.append(a) db.session.commit() return render_template('import_csv.html', numberadded=numberadded) @app.route('/empty_catalogue', methods= ['POST','GET']) def empty_catalogue(): meta = db.metadata for table in reversed(meta.sorted_tables): if str(table) == "books" or str(table) == "authors" or str(table) == "books_authors": print('Clear table %s' % table) db.session.execute(table.delete()) db.create_all() db.session.commit() return "ALL CLEARED" ### # The API ### @app.route('/api/books', methods=['GET']) def get_books(): books = Book.query.all() data = books_schema.dump(books) #print(errors) return jsonify({'books': data}) @app.route('/api/books/', methods=['GET']) def get_book_by_id(id): book = Book.query.get(id) data = book_schema.dump(book) if not data: return jsonify({"message": "Book could not be found."}), 400 else: return jsonify({'book': data }) @app.route('/api/chats', methods=['GET']) def get_chat(): chats = Chat.query.all() data = chats_schema.dump(chats) #print(errors) return jsonify({'chat': data}) ### # The functions below should be applicable to all Flask apps. ### @app.route('/.txt') def send_text_file(file_name): """Send your static text file.""" file_dot_text = file_name + '.txt' return app.send_static_file(file_dot_text) @app.after_request def add_header(response): """ Add headers to both force latest IE rendering engine or Chrome Frame, and also to cache the rendered page for 10 minutes. """ response.headers['X-UA-Compatible'] = 'IE=Edge,chrome=1' response.headers['Cache-Control'] = 'public, max-age=600' return response @app.errorhandler(404) def page_not_found(error): """Custom 404 page.""" return render_template('404.html'), 404 ### SOCKET for the chat @socketio.on('new_message') def new_message(message): # Send message to all users # print("new message") # channel is always 1 now, but might be interesting for further development emit('channel-' + str(message['channel']), { 'username': message['username'], 'text': message['text'], 'time': str(datetime.datetime.utcnow().strftime("%d.%m.%Y %H:%M")) }, broadcast=True ) # Save message my_new_chat = Chat( message=message['text'] ) db.session.add(my_new_chat) try: db.session.commit() except: db.session.rollback() if __name__ == '__main__': socketio.run(app) #app.run(debug=True,host="0.0.0.0",port="8080")