account.py

import json

import web
import logging
import json
import re

from infogami.utils import delegate
from infogami import config
from infogami.utils.view import (
    require_login, render, render_template, add_flash_message
)

from infogami.infobase.client import ClientException
from infogami.utils.context import context
import infogami.core.code as core

from openlibrary import accounts
from openlibrary.i18n import gettext as _
from openlibrary.core import helpers as h, lending
from openlibrary.core.bookshelves import Bookshelves
from openlibrary.plugins.recaptcha import recaptcha
from openlibrary.plugins import openlibrary as olib
from openlibrary.accounts import (
    audit_accounts, Account, OpenLibraryAccount, InternetArchiveAccount, valid_email)
from openlibrary.core.sponsorships import get_sponsored_editions
from openlibrary.plugins.upstream import borrow, forms, utils

from six.moves import range
from six.moves import urllib


logger = logging.getLogger("openlibrary.account")

RESULTS_PER_PAGE = 25
USERNAME_RETRIES = 3

# XXX: These need to be cleaned up
send_verification_email = accounts.send_verification_email
create_link_doc = accounts.create_link_doc
sendmail = accounts.sendmail

LOGIN_ERRORS = {
        "invalid_email": "The email address you entered is invalid",
        "account_blocked": "This account has been blocked",
        "account_locked": "This account has been blocked",
        "account_not_found": "No account was found with this email. Please try again",
        "account_incorrect_password": "The password you entered is incorrect. Please try again",
        "account_bad_password": "Wrong password. Please try again",
        "account_not_verified": "Please verify your Open Library account before logging in",
        "ia_account_not_verified": "Please verify your Internet Archive account before logging in",
        "missing_fields": "Please fill out all fields and try again",
        "email_registered": "This email is already registered",
        "username_registered": "This username is already registered",
        "ia_login_only": "Sorry, you must use your Internet Archive email and password to log in",
        "max_retries_exceeded": "A problem occurred and we were unable to log you in.",
        "invalid_s3keys": "Login attempted with invalid Internet Archive s3 credentials.",
        "wrong_ia_account": "An Open Library account with this email is already linked to a different Internet Archive account. Please contact info@openlibrary.org."
    }

class availability(delegate.page):
    path = "/internal/fake/availability"

    def POST(self):
        """Internal private API required for testing on localhost
        """
        return delegate.RawText(json.dumps({}),
                                content_type="application/json")

class loans(delegate.page):
    path = "/internal/fake/loans"

    def POST(self):
        """Internal private API required for testing on localhost
        """
        return delegate.RawText(json.dumps({}),
                                content_type="application/json")

class xauth(delegate.page):
    path = "/internal/fake/xauth"

    def POST(self):
        """Internal private API required for testing login on localhost
        which normally would have to hit archive.org's xauth
        service. This service is spoofable to return successful and
        unsuccessful login attempts depending on the provided GET parameters
        """
        i = web.input(email='', op=None)
        result = {"error": "incorrect option specified"}
        if i.op == "authenticate":
            result = {
                "success": True,
                "version": 1,
                "values": {
                    "access": 'foo',
                    "secret": 'foo',
                },
            }
        elif i.op == "info":
            result = {
                "success": True,
                "values": {
                    "locked": False,
                    "email": "openlibrary@example.org",
                    "itemname":"@openlibrary",
                    "screenname":"openlibrary",
                    "verified": True
                },
                "version":1
            }
        return delegate.RawText(json.dumps(result),
                                content_type="application/json")

class internal_audit(delegate.page):
    path = "/internal/account/audit"

    def GET(self):
        """Internal API endpoint used for authorized test cases and
        administrators to unlink linked OL and IA accounts.
        """
        i = web.input(email='', username='', itemname='', key='', unlink='',
                      new_itemname='')
        if i.key != lending.config_internal_tests_api_key:
            result = {'error': 'Authentication failed for private API'}
        else:
            try:
                result = OpenLibraryAccount.get(email=i.email, link=i.itemname,
                                                username=i.username)
                if result is None:
                    raise ValueError('Invalid Open Library account email ' \
                                     'or itemname')
                result.enc_password = 'REDACTED'
                if i.new_itemname:
                    result.link(i.new_itemname)
                if i.unlink:
                    result.unlink()
            except ValueError as e:
                result = {'error': str(e)}

        return delegate.RawText(json.dumps(result),
                                content_type="application/json")

class account_migration(delegate.page):

    path = "/internal/account/migration"

    def GET(self):
        i = web.input(username='', email='', key='')
        if i.key != lending.config_internal_tests_api_key:
            return delegate.RawText(json.dumps({
                'error': 'Authentication failed for private API'
            }), content_type="application/json")
        try:
            if i.username:
                ol_account = OpenLibraryAccount.get(username=i.username)
            elif i.email:
                ol_account = OpenLibraryAccount.get(email=i.email)
        except Exception as e:
            return delegate.RawText(json.dumps({
                'error': 'bad-account'
            }), content_type="application/json")
        if ol_account:
            ol_account.enc_password = 'REDACTED'
            if ol_account.itemname:
                return delegate.RawText(json.dumps({
                    'status': 'link-exists',
                    'username': ol_account.username,
                    'itemname': ol_account.itemname,
                    'email': ol_account.email.lower()
                }), content_type="application/json")
            if not ol_account.itemname:
                ia_account = InternetArchiveAccount.get(email=ol_account.email.lower())
                if ia_account:
                    ol_account.link(ia_account.itemname)
                    return delegate.RawText(json.dumps({
                        'username': ol_account.username,
                        'status': 'link-found',
                        'itemname': ia_account.itemname,
                        'ol-itemname': ol_account.itemname,
                        'email': ol_account.email.lower(),
                        'ia': ia_account
                    }), content_type="application/json")

                password = OpenLibraryAccount.generate_random_password(16)
                ia_account = InternetArchiveAccount.create(
                    ol_account.username or ol_account.displayname,
                    ol_account.email, password, verified=True, retries=USERNAME_RETRIES)
                return delegate.RawText(json.dumps({
                    'username': ol_account.username,
                    'email': ol_account.email,
                    'itemname': ia_account.itemname,
                    'password': password,
                    'status': 'link-created'
                }), content_type="application/json")

class account(delegate.page):
    """Account preferences.
    """
    @require_login
    def GET(self):
        user = accounts.get_current_user()
        return render.account(user)

class account_create(delegate.page):
    """New account creation.

    Account remains in the pending state until the email is activated.
    """
    path = "/account/create"

    def GET(self):
        f = self.get_form()
        return render['account/create'](f)

    def get_form(self):
        """
        :rtype: forms.RegisterForm
        """
        f = forms.Register()
        recap = self.get_recap()
        f.has_recaptcha = recap is not None
        if f.has_recaptcha:
            f.inputs = list(f.inputs) + [recap]
        return f

    def get_recap(self):
        if self.is_plugin_enabled('recaptcha'):
            public_key = config.plugin_recaptcha.public_key
            private_key = config.plugin_recaptcha.private_key
            return recaptcha.Recaptcha(public_key, private_key)

    def is_plugin_enabled(self, name):
        return name in delegate.get_plugins() or "openlibrary.plugins." + name in delegate.get_plugins()

    def POST(self):
        f = self.get_form()  # type: forms.RegisterForm

        if f.validates(web.input()):
            try:
                # Create ia_account: require they activate via IA email
                # and then login to OL. Logging in after activation with
                # IA credentials will auto create and link OL account.
                notifications = ['announce-general'] if f.ia_newsletter.checked else []
                InternetArchiveAccount.create(
                    screenname=f.username.value, email=f.email.value, password=f.password.value,
                    notifications=notifications, verified=False, retries=USERNAME_RETRIES)
                return render['account/verify'](username=f.username.value, email=f.email.value)
            except ValueError:
                f.note = LOGIN_ERRORS['max_retries_exceeded']

        return render['account/create'](f)


del delegate.pages['/account/register']


class account_login_json(delegate.page):

    encoding = "json"
    path = "/account/login"

    def POST(self):
        """Overrides `account_login` and infogami.login to prevent users from
        logging in with Open Library username and password if the
        payload is json. Instead, if login attempted w/ json
        credentials, requires Archive.org s3 keys.
        """
        from openlibrary.plugins.openlibrary.code import BadRequest
        d = json.loads(web.data())
        access = d.get('access', None)
        secret = d.get('secret', None)
        test = d.get('test', False)

        # Try S3 authentication first, fallback to infogami user, pass
        if access and secret:
            audit = audit_accounts(None, None, require_link=True,
                                   s3_access_key=access,
                                   s3_secret_key=secret, test=test)
            error = audit.get('error')
            if error:
                raise olib.code.BadRequest(error)
            web.setcookie(config.login_cookie_name, web.ctx.conn.get_auth_token())
        # Fallback to infogami user/pass
        else:
            from infogami.plugins.api.code import login as infogami_login
            infogami_login().POST()



class account_login(delegate.page):
    """Account login.

    Login can fail because of the following reasons:

    * account_not_found: Error message is displayed.
    * account_bad_password: Error message is displayed with a link to reset password.
    * account_not_verified: Error page is dispalyed with button to "resend verification email".
    """
    path = "/account/login"

    def render_error(self, error_key, i):
        f = forms.Login()
        f.fill(i)
        f.note = LOGIN_ERRORS[error_key]
        return render.login(f)

    def GET(self):
        referer = web.ctx.env.get('HTTP_REFERER', '/')
        # Don't set referer on user activation
        if 'archive.org' in referer:
            referer = None
        i = web.input(redirect=referer)
        f = forms.Login()
        f['redirect'].value = i.redirect
        return render.login(f)

    def POST(self):
        i = web.input(username="", connect=None, password="", remember=False,
                      redirect='/', test=False, access=None, secret=None)
        email = i.username  # XXX username is now email
        audit = audit_accounts(email, i.password, require_link=True,
                               s3_access_key=i.access,
                               s3_secret_key=i.secret, test=i.test)
        error = audit.get('error')
        if error:
            return self.render_error(error, i)

        expires = 3600 * 24 * 7 if i.remember else ""
        web.setcookie('pd', int(audit.get('special_access')) or '',
                      expires=expires)
        web.setcookie(config.login_cookie_name, web.ctx.conn.get_auth_token(),
                      expires=expires)
        blacklist = ["/account/login", "/account/password", "/account/email",
                     "/account/create"]
        if i.redirect == "" or any([path in i.redirect for path in blacklist]):
            i.redirect = "/"
        raise web.seeother(i.redirect)

    def POST_resend_verification_email(self, i):
        try:
            ol_login = OpenLibraryAccount.authenticate(i.email, i.password)
        except ClientException as e:
            code = e.get_data().get("code")
            if code != "account_not_verified":
                return self.error("account_incorrect_password", i)

        account = OpenLibraryAccount.get(email=i.email)
        account.send_verification_email()

        title = _("Hi, %(user)s", user=account.displayname)
        message = _("We've sent the verification email to %(email)s. You'll need to read that and click on the verification link to verify your email.", email=account.email)
        return render.message(title, message)

class account_verify(delegate.page):
    """Verify user account.
    """
    path = "/account/verify/([0-9a-f]*)"

    def GET(self, code):
        docs = web.ctx.site.store.values(type="account-link", name="code", value=code)
        if docs:
            doc = docs[0]

            account = accounts.find(username = doc['username'])
            if account:
                if account['status'] != "pending":
                    return render['account/verify/activated'](account)
            account.activate()
            user = web.ctx.site.get("/people/" + doc['username']) #TBD
            return render['account/verify/success'](account)
        else:
            return render['account/verify/failed']()

    def POST(self, code=None):
        """Called to regenerate account verification code.
        """
        i = web.input(email=None)
        account = accounts.find(email=i.email)
        if not account:
            return render_template("account/verify/failed", email=i.email)
        elif account['status'] != "pending":
            return render['account/verify/activated'](account)
        else:
            account.send_verification_email()
            title = _("Hi, %(user)s", user=account.displayname)
            message = _("We've sent the verification email to %(email)s. You'll need to read that and click on the verification link to verify your email.", email=account.email)
            return render.message(title, message)

class account_verify_old(account_verify):
    """Old account verification code.

    This takes username, email and code as url parameters. The new one takes just the code as part of the url.
    """
    path = "/account/verify"
    def GET(self):
        # It is too long since we switched to the new account verification links.
        # All old links must be expired by now.
        # Show failed message without thinking.
        return render['account/verify/failed']()

class account_validation(delegate.page):
    path = '/account/validate'

    @staticmethod
    def validate_username(username):
        if not 3 <= len(username) <= 20:
            return _('Username must be between 3-20 characters')
        if not re.match('^[A-Za-z0-9-_]{3,20}$', username):
            return _('Username may only contain numbers and letters')
        ol_account = OpenLibraryAccount.get(username=username)
        if ol_account:
            return _("Username unavailable")

    @staticmethod
    def validate_email(email):
        if not (email and re.match(r'.*@.*\..*', email)):
            return _('Must be a valid email address')

        ol_account = OpenLibraryAccount.get(email=email)
        if ol_account:
            return _('Email already registered')


    def GET(self):
        i = web.input()
        errors = {
            'email': None,
            'username': None
        }
        if i.get('email') is not None:
            errors['email'] = self.validate_email(i.email)
        if i.get('username') is not None:
            errors['username'] = self.validate_username(i.username)
        return delegate.RawText(json.dumps(errors),
                                content_type="application/json")


class account_email_verify(delegate.page):
    path = "/account/email/verify/([0-9a-f]*)"

    def GET(self, code):
        link = accounts.get_link(code)
        if link:
            username = link['username']
            email = link['email']
            link.delete()
            return self.update_email(username, email)
        else:
            return self.bad_link()

    def update_email(self, username, email):
        if accounts.find(email=email):
            title = _("Email address is already used.")
            message = _("Your email address couldn't be updated. The specified email address is already used.")
        else:
            logger.info("updated email of %s to %s", username, email)
            accounts.update_account(username=username, email=email, status="active")
            title = _("Email verification successful.")
            message = _('Your email address has been successfully verified and updated in your account.')
        return render.message(title, message)

    def bad_link(self):
        title = _("Email address couldn't be verified.")
        message = _("Your email address couldn't be verified. The verification link seems invalid.")
        return render.message(title, message)

class account_email_verify_old(account_email_verify):
    path = "/account/email/verify"

    def GET(self):
        # It is too long since we switched to the new email verification links.
        # All old links must be expired by now.
        # Show failed message without thinking.
        return self.bad_link()

class account_ia_email_forgot(delegate.page):
    path = "/account/email/forgot-ia"

    def GET(self):
        return render_template('account/email/forgot-ia')

    def POST(self):
        i = web.input(email='', password='')
        err = ""

        if valid_email(i.email):
            act = OpenLibraryAccount.get(email=i.email)
            if act:
                if OpenLibraryAccount.authenticate(i.email, i.password) == "ok":
                    ia_act = act.get_linked_ia_account()
                    if ia_act:
                        return render_template('account/email/forgot-ia', email=ia_act.email)
                    else:
                        err = "Open Library Account not linked. Login with your Open Library credentials to connect or create an Archive.org account"
                else:
                    err = "Incorrect password"
            else:
                err = "Sorry, this Open Library account does not exist"
        else:
            err = "Please enter a valid Open Library email"
        return render_template('account/email/forgot-ia', err=err)

class account_ol_email_forgot(delegate.page):
    path = "/account/email/forgot"

    def GET(self):
        return render_template('account/email/forgot')

    def POST(self):
        i = web.input(username='', password='')
        err = ""
        act = OpenLibraryAccount.get(username=i.username)

        if act:
            if OpenLibraryAccount.authenticate(act.email, i.password) == "ok":
                return render_template('account/email/forgot', email=act.email)
            else:
                err = "Incorrect password"

        elif valid_email(i.username):
            err = "Please enter a username, not an email"

        else:
            err="Sorry, this user does not exist"

        return render_template('account/email/forgot', err=err)


class account_password_forgot(delegate.page):
    path = "/account/password/forgot"

    def GET(self):
        f = forms.ForgotPassword()
        return render['account/password/forgot'](f)

    def POST(self):
        i = web.input(email='')

        f = forms.ForgotPassword()

        if not f.validates(i):
            return render['account/password/forgot'](f)

        account = accounts.find(email=i.email)

        if account.is_blocked():
            f.note = utils.get_error("account_blocked")
            return render_template('account/password/forgot', f)

        send_forgot_password_email(account.username, i.email)
        return render['account/password/sent'](i.email)

class account_password_reset(delegate.page):

    path = "/account/password/reset/([0-9a-f]*)"

    def GET(self, code):
        docs = web.ctx.site.store.values(type="account-link", name="code", value=code)
        if not docs:
            title = _("Password reset failed.")
            message = "Your password reset link seems invalid or expired."
            return render.message(title, message)

        f = forms.ResetPassword()
        return render['account/password/reset'](f)

    def POST(self, code):
        link = accounts.get_link(code)
        if not link:
            title = _("Password reset failed.")
            message = "The password reset link seems invalid or expired."
            return render.message(title, message)

        username = link['username']
        i = web.input()

        accounts.update_account(username, password=i.password)
        link.delete()
        return render_template("account/password/reset_success", username=username)


class account_audit(delegate.page):

    path = "/account/audit"

    def POST(self):
        """When the user attempts a login, an audit is performed to determine
        whether their account is already linked (in which case we can
        proceed to log the user in), whether there is an error
        authenticating their account, or whether a /account/connect
        must first performed.

        Note: Emails are case sensitive behind the scenes and
        functions which require them as lower will make them so
        """
        i = web.input(email='', password='')
        test = i.get('test', '').lower() == 'true'
        email = i.get('email')
        password = i.get('password')
        result = audit_accounts(email, password, test=test)
        return delegate.RawText(json.dumps(result),
                                content_type="application/json")

class account_privacy(delegate.page):
    path = "/account/privacy"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        return render['account/privacy'](user.preferences())

    @require_login
    def POST(self):
        user = accounts.get_current_user()
        user.save_preferences(web.input())
        add_flash_message('note', _("Notification preferences have been updated successfully."))
        web.seeother("/account")

class account_notifications(delegate.page):
    path = "/account/notifications"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        email = user.email
        return render['account/notifications'](user.preferences(), email)

    @require_login
    def POST(self):
        user = accounts.get_current_user()
        user.save_preferences(web.input())
        add_flash_message('note', _("Notification preferences have been updated successfully."))
        web.seeother("/account")

class account_lists(delegate.page):
    path = "/account/lists"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        raise web.seeother(user.key + '/lists')




class ReadingLog(object):

    """Manages the user's account page books (reading log, waitlists, loans)"""



    def __init__(self, user=None):
        self.user = user or accounts.get_current_user()
        #self.user.update_loan_status()
        self.KEYS = {
            'waitlists': self.get_waitlisted_editions,
            'loans': self.get_loans,
            'want-to-read': self.get_want_to_read,
            'currently-reading': self.get_currently_reading,
            'already-read': self.get_already_read
        }

    @property
    def lists(self):
        return self.user.get_lists()

    @property
    def reading_log_counts(self):
        counts = Bookshelves.count_total_books_logged_by_user_per_shelf(
            self.user.get_username())
        return {
            'want-to-read': counts.get(Bookshelves.PRESET_BOOKSHELVES['Want to Read'], 0),
            'currently-reading': counts.get(Bookshelves.PRESET_BOOKSHELVES['Currently Reading'], 0),
            'already-read': counts.get(Bookshelves.PRESET_BOOKSHELVES['Already Read'], 0)
        }

    def get_loans(self):
        return borrow.get_loans(self.user)

    def get_waitlist_summary(self):
        return self.user.get_waitinglist()

    def get_waitlisted_editions(self):
        """Gets a list of records corresponding to a user's waitlisted
        editions, fetches all the editions, and then inserts the data
        from each waitlist record (e.g. position in line) into the
        corresponding edition
        """
        waitlists = self.user.get_waitinglist()
        keyed_waitlists = dict([(w['identifier'], w) for w in waitlists])
        ocaids = [i['identifier'] for i in waitlists]
        edition_keys = web.ctx.site.things({"type": "/type/edition", "ocaid": ocaids})
        editions = web.ctx.site.get_many(edition_keys)
        for i in range(len(editions)):
            # insert the waitlist_entry corresponding to this edition
            editions[i].waitlist_record = keyed_waitlists[editions[i].ocaid]
        return editions

    def get_want_to_read(self, page=1, limit=RESULTS_PER_PAGE):
        work_ids = ['/works/OL%sW' % i['work_id'] for i in Bookshelves.get_users_logged_books(
            self.user.get_username(), bookshelf_id=Bookshelves.PRESET_BOOKSHELVES['Want to Read'],
            page=page, limit=limit)]
        return web.ctx.site.get_many(work_ids)

    def get_currently_reading(self, page=1, limit=RESULTS_PER_PAGE):
        work_ids = ['/works/OL%sW' % i['work_id'] for i in Bookshelves.get_users_logged_books(
            self.user.get_username(), bookshelf_id=Bookshelves.PRESET_BOOKSHELVES['Currently Reading'],
            page=page, limit=limit)]
        return web.ctx.site.get_many(work_ids)

    def get_already_read(self, page=1, limit=RESULTS_PER_PAGE):
        work_ids = ['/works/OL%sW' % i['work_id'] for i in Bookshelves.get_users_logged_books(
            self.user.get_username(), bookshelf_id=Bookshelves.PRESET_BOOKSHELVES['Already Read'],
            page=page, limit=limit)]
        return web.ctx.site.get_many(work_ids)

    def get_works(self, key, page=1, limit=RESULTS_PER_PAGE):
        """
        :rtype: list of openlibrary.plugins.upstream.models.Work
        """
        key = key.lower()
        if key in self.KEYS:
            return self.KEYS[key](page=page, limit=limit)
        else: # must be a list or invalid page!
            #works = web.ctx.site.get_many([ ... ])
            raise

class public_my_books(delegate.page):
    path = "/people/([^/]+)/books"

    def GET(self, username):
        raise web.seeother('/people/%s/books/want-to-read' % username)

class public_my_books(delegate.page):
    path = "/people/([^/]+)/books/([a-zA-Z_-]+)"

    def GET(self, username, key='loans'):
        """check if user's reading log is public"""
        i = web.input(page=1)
        user = web.ctx.site.get('/people/%s' % username)
        if not user:
            return render.notfound("User %s"  % username, create=False)
        is_public = user.preferences().get('public_readlog', 'no') == 'yes'
        logged_in_user = accounts.get_current_user()
        if is_public or logged_in_user and logged_in_user.key.split('/')[-1] == username:
            readlog = ReadingLog(user=user)
            sponsorships = get_sponsored_editions(user)
            if key == 'sponsorships':
                books = (web.ctx.site.get(
                    web.ctx.site.things({
                        'type': '/type/edition',
                        'isbn_%s' % len(s['isbn']): s['isbn']
                    })[0]) for s in sponsorships)
            else:
                books = readlog.get_works(key, page=i.page)
            return render['account/books'](
                books, key, sponsorship_count=len(sponsorships),
                reading_log_counts=readlog.reading_log_counts, lists=readlog.lists,
                user=user, logged_in_user=logged_in_user, public=is_public
            )
        raise web.seeother(user.key)


class readinglog_stats(delegate.page):
    path = "/people/([^/]+)/books/([a-zA-Z_-]+)/stats"

    def GET(self, username, key='loans'):
        user = web.ctx.site.get('/people/%s' % username)
        if not user:
            return render.notfound("User %s" % username, create=False)

        cur_user = accounts.get_current_user()
        if not cur_user or cur_user.key.split('/')[-1] != username:
            return render.permission_denied(web.ctx.path, 'Permission Denied')

        readlog = ReadingLog(user=user)
        works = readlog.get_works(key, page=1, limit=2000)
        works_json = [
            {
                'title': w.get('title'),
                'key': w.key,
                'author_keys': [a.author.key for a in w.get('authors', [])],
                'first_publish_year': w.first_publish_year or None,
                'subjects': w.get('subjects'),
                'subject_people': w.get('subject_people'),
                'subject_places': w.get('subject_places'),
                'subject_times': w.get('subject_times'),
            } for w in works
        ]
        author_keys = set(
            a
            for work in works_json
            for a in work['author_keys']
        )
        authors_json = [
            {
                'key': a.key,
                'name': a.name,
                'birth_date': a.get('birth_date'),
            }
            for a in web.ctx.site.get_many(list(author_keys))
        ]
        return render['account/readinglog_stats'](
            json.dumps(works_json),
            json.dumps(authors_json),
            len(works_json),
            user.key,
            user.displayname,
            web.ctx.path.rsplit('/', 1)[0],
            key,
            lang=web.ctx.lang,
        )


class account_my_books_redirect(delegate.page):
    path = "/account/books/(.*)"

    @require_login
    def GET(self, rest='loans'):
        user = accounts.get_current_user()
        username = user.key.split('/')[-1]
        raise web.seeother('/people/%s/books/%s' % (username, rest))

class account_my_books(delegate.page):
    path = "/account/books"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        username = user.key.split('/')[-1]
        raise web.seeother('/people/%s/books' % (username))

# This would be by the civi backend which would require the api keys
class fake_civi(delegate.page):
    path = "/internal/fake/civicrm"

    def GET(self):
        i = web.input(entity='Contact')
        contact = {
            'values': [{
                'contact_id': '270430'
            }]
        }
        contributions = {
            'values': [{
                "receive_date": "2019-07-31 08:57:00",
                "custom_52": "9780062457714",
                "total_amount": "50.00",
                "custom_53": "ol"
            }]
        }
        entity = contributions if i.entity == 'Contribution' else contact
        return delegate.RawText(json.dumps(entity), content_type="application/json")

class import_books(delegate.page):
    path = "/account/import"

    @require_login
    def GET(self):
        return render['account/import']()

class fetch_goodreads(delegate.page):
    path = "/account/import/goodreads"

    def GET(self):
        raise web.seeother("/account/import")

    @require_login
    def POST(self):
        books, books_wo_isbns = process_goodreads_csv(web.input())
        return render['account/import'](books, books_wo_isbns)

class export_books(delegate.page):
    path = "/account/export"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        username = user.key.split('/')[-1]
        books = Bookshelves.get_users_logged_books(username, limit=10000)
        csv = []
        csv.append('Work Id,Edition Id,Bookshelf\n')
        mapping = {1:'Want to Read', 2:'Currently Reading', 3:'Already Read'}
        for book in books:
            row = [
                'OL{}W'.format(book['work_id']),
                'OL{}M'.format(book['edition_id']) if book['edition_id'] else '',
                '{}\n'.format(mapping[book['bookshelf_id']])
            ]
            csv.append(','.join(row))
        web.header('Content-Type','text/csv')
        web.header('Content-disposition', 'attachment; filename=OpenLibrary_ReadingLog.csv')
        csv = ''.join(csv)
        return delegate.RawText(csv, content_type="text/csv")

class account_loans(delegate.page):
    path = "/account/loans"

    @require_login
    def GET(self):
        user = accounts.get_current_user()
        user.update_loan_status()
        loans = borrow.get_loans(user)
        return render['account/borrow'](user, loans)

# Disabling be cause it prevents account_my_books_redirect from working
# for some reason. The purpose of this class is to not show the "Create" link for
# /account pages since that doesn't make any sense.
# class account_others(delegate.page):
#     path = "(/account/.*)"
#
#     def GET(self, path):
#         return render.notfound(path, create=False)


def send_forgot_password_email(username, email):
    key = "account/%s/password" % username

    doc = create_link_doc(key, username, email)
    web.ctx.site.store[key] = doc

    link = web.ctx.home + "/account/password/reset/" + doc['code']
    msg = render_template("email/password/reminder", username=username, email=email, link=link)
    sendmail(email, msg)


def as_admin(f):
    """Infobase allows some requests only from admin user. This decorator logs in as admin, executes the function and clears the admin credentials."""
    def g(*a, **kw):
        try:
            delegate.admin_login()
            return f(*a, **kw)
        finally:
            web.ctx.headers = []
    return g


def process_goodreads_csv(i):
    import csv
    csv_payload = i.csv if isinstance(i.csv, str) else i.csv.decode()
    csv_file = csv.reader(csv_payload.splitlines(), delimiter=',', quotechar='"')
    header = next(csv_file)
    books = {}
    books_wo_isbns = {}
    for book in list(csv_file):
        _book = dict(zip(header, book))
        isbn = _book['ISBN'] = _book['ISBN'].replace('"', '').replace('=', '')
        isbn_13 = _book['ISBN13'] = _book['ISBN13'].replace('"', '').replace('=', '')
        if isbn != '':
            books[isbn] = _book
        elif isbn_13 != '':
            books[isbn_13] = _book
            books[isbn_13]['ISBN'] = isbn_13
        else:
            books_wo_isbns[_book['Book Id']] = _book
    return books, books_wo_isbns