mirror of https://github.com/djcb/mu.git
190 lines
5.1 KiB
C++
190 lines
5.1 KiB
C++
/*
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** Copyright (C) 2022 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by the
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** Free Software Foundation; either version 3, or (at your option) any
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** later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#ifndef MU_MESSAGE_CONTACT_HH__
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#define MU_MESSAGE_CONTACT_HH__
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#include <functional>
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#include <string>
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#include <vector>
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#include <functional>
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#include <cctype>
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#include <cstring>
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#include <cstdlib>
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#include <ctime>
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#include <utils/mu-option.hh>
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#include "mu-fields.hh"
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struct _InternetAddressList;
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namespace Mu {
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/**
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* Get the hash value for a lowercase value of s; useful for email-addresses
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*
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* @param s a string
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*
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* @return a hash value.
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*/
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size_t lowercase_hash(const std::string& s);
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struct Contact {
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/**
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* Construct a new Contact
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*
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* @param email_ email address
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* @param name_ name or empty
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* @param field_id_ contact field id, or {}
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* @param message_date_ data for the message for this contact
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*/
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Contact(const std::string& email_, const std::string& name_ = "",
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Option<Field::Id> field_id_ = {},
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time_t message_date_ = 0)
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: email{email_}, name{name_}, field_id{field_id_},
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message_date{message_date_}, personal{}, frequency{1}, tstamp{}
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{ cleanup_name(); }
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/**
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* Construct a new Contact
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*
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* @param email_ email address
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* @param name_ name or empty
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* @param message_date_ date of message this contact originate from
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* @param personal_ is this a personal contact?
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* @param freq_ how often was this contact seen?
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* @param tstamp_ timestamp for last change
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*/
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Contact(const std::string& email_, const std::string& name_,
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time_t message_date_, bool personal_, size_t freq_,
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int64_t tstamp_)
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: email{email_}, name{name_}, field_id{},
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message_date{message_date_}, personal{personal_}, frequency{freq_},
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tstamp{tstamp_}
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{ cleanup_name();}
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/**
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* Get the "display name" for this contact; basically, if there's a
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* non-empty name, it's
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* Jane Doe <email@example.com>
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* otherwise it's just the e-mail address.
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*
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* @return the display name
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*/
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std::string display_name() const;
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/**
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* Operator==; based on the hash values (ie. lowercase e-mail address)
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*
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* @param rhs some other Contact
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*
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* @return true orf false.
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*/
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bool operator== (const Contact& rhs) const noexcept {
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return hash() == rhs.hash();
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}
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/**
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* Get a hash-value for this contact, which gets lazily calculated. This
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* * is for use with container classes. This uses the _lowercase_ email
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* address.
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*
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* @return the hash
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*/
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size_t hash() const {
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static size_t cached_hash;
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if (cached_hash == 0) {
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cached_hash = lowercase_hash(email);
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}
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return cached_hash;
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}
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/*
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* data members
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*/
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std::string email; /**< Email address for this contact.Not empty */
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std::string name; /**< Name for this contact; can be empty. */
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Option<Field::Id> field_id; /**< Field Id of contact or nullopt */
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int64_t message_date; /**< date of the message from which the
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* contact originates (or 0) */
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bool personal; /**< A personal message? */
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size_t frequency; /**< Frequency of this contact */
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int64_t tstamp; /**< Timestamp for this contact (internal use) */
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private:
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void cleanup_name() { // replace control characters by spaces.
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for (auto& c: name)
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if (iscntrl(c))
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c = ' ';
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}
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};
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using Contacts = std::vector<Contact>;
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/**
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* Create a sequence of Contact objects from an InternetAddressList
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*
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* @param addr_lst an address list
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* @param field_id the field_id for message field for these addresses
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* @param message_date the date of the message from which the InternetAddressList
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* originates.
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*
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* @return a sequence of Contact objects.
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*/
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Contacts
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make_contacts(/*const*/ struct _InternetAddressList* addr_lst,
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Field::Id field_id, int64_t message_date);
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/**
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* Create a sequence of Contact objects from an InternetAddressList
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*
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* @param addrs a string with one more valid addresses (as per internet_address_list_parse())
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* @param field_id the field_id for message field for these addresses
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* @param message_date the date of the message from which the addresses originate
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*
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* @return a sequence of Contact objects.
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*/
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Contacts
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make_contacts(const std::string& addrs,
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Field::Id field_id, int64_t message_date);
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/**
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* Get contacts as a comma-separated list.
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*
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* @param contacts contacs
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*
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* @return string with contacts.
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*/
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std::string to_string(const Contacts& contacts);
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} // namespace Mu
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/**
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* Implement our hash int std::
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*/
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template<> struct std::hash<Mu::Contact> {
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std::size_t operator()(const Mu::Contact& c) const noexcept {
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return c.hash();
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}
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};
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#endif /* MU_CONTACT_HH__ */
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