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/*
Copyright (C) 2023-2025 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
signalbackup-tools is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#include "signalbackup.ih"
#include "msgrange.h"
bool SignalBackup::HTMLprepMsgBody(std::string *body, std::vector<std::tuple<long long int, long long int, long long int>> const &mentions,
std::map<long long int, RecipientInfo> *recipient_info, bool incoming,
std::pair<std::shared_ptr<unsigned char []>, size_t> const &brdata,
bool linkify, bool isquote) const
{
if (body->empty())
return false;
std::vector<Range> ranges;
// First, do mentions
for (auto const &m : mentions)
{
// m0 : recipient_id, m1: start, m2: length
std::string author = getRecipientInfoFromMap(recipient_info, std::get<0>(m)).display_name;
if (!author.empty())
{
ranges.emplace_back(Range{std::get<1>(m), std::get<2>(m),
(isquote ? "" : "<span class=\"mention-"s + (incoming ? "in" : "out") + "\">"),
"@" + author,
(isquote ? "" : "</span>"),
true});
}
}
// now do other stylings?
bool hasstyledlinks = false;
if (brdata.second)
{
BodyRanges brsproto(brdata);
//brsproto.print();
auto brs = brsproto.getField<1>();
for (auto const &br : brs)
{
int start = br.getField<1>().value_or(0);
int length = br.getField<2>().value_or(0);
if (!length) // maybe legal? no length == rest of string? (like no start is beg)
continue;
// get mention
std::string mentionuuid = br.getField<3>().value_or(std::string());
if (!mentionuuid.empty())
{
long long int authorid = getRecipientIdFromUuidMapped(mentionuuid, nullptr);
std::string author = getRecipientInfoFromMap(recipient_info, authorid).display_name;
if (!author.empty())
ranges.emplace_back(Range{start, length,
(isquote ? "" : "<span class=\"mention-"s + (incoming ? "in" : "out") + "\">"),
"@" + author,
(isquote ? "" : "</span>"),
true});
}
// get style
int style = br.getField<4>().value_or(-1);
// get link
std::string link = br.getField<5>().value_or(std::string());
if (style > -1)
{
//std::cout << "Adding style to range [" << start << "-" << start+length << "] : " << style << std::endl;
switch (style)
{
case 0: // BOLD
{
ranges.emplace_back(Range{start, length, "<b>", "", "</b>", false});
break;
}
case 1: // ITALIC
{
ranges.emplace_back(Range{start, length, "<i>", "", "</i>", false});
break;
}
case 2: // SPOILER
{
ranges.emplace_back(Range{start, length, "<span class=\"spoiler\">", "", "</span>", true});
break;
}
case 3: // STRIKETHROUGH
{
ranges.emplace_back(Range{start, length, "<s>", "", "</s>", false}); // or <del>? or <span class="strikthrough">?
break;
}
case 4: // MONOSPACE
{
ranges.emplace_back(Range{start, length, "<span class=\"monospace\">", "", "</span>", false});
break;
}
default:
{
Logger::warning("Unsupported range-style: ", style);
}
}
}
if (!link.empty())
{
//std::cout << "Adding link to range [" << start << "-" << start+length << "] '" << link << "'" << std::endl;
ranges.emplace_back(Range{start, length, "<a class=\"styled-link\" href=\"" + link + "\">", "", "</a>", true});
hasstyledlinks = true;
}
}
}
// scan for links (somehow skipping the styled links above!), then
// ranges.emplace_back(Range{start, length, <a href=\"" + link + "\">", "", "</a>", true});
if (linkify && !hasstyledlinks)
HTMLLinkify(*body, &ranges);
std::set<int> positions_excluded_from_escape;
applyRanges(body, &ranges, &positions_excluded_from_escape);
HTMLescapeString(body, &positions_excluded_from_escape);
// now do the emoji
std::vector<std::pair<unsigned int, unsigned int>> emoji_pos = HTMLgetEmojiPos(*body);
// check if body is only emoji
bool all_emoji = true;
if (emoji_pos.size() > 5)
all_emoji = false; // could technically still be only emoji, but it gets a bubble in html
else
{
for (unsigned int i = 0, posidx = 0; i < body->size(); ++i)
{
if (posidx >= emoji_pos.size() || i != emoji_pos[posidx].first)
{
if ((*body)[i] == ' ') // spaces dont count
continue;
all_emoji = false;
break;
}
else // body[i] == pos[posidx].first
i += emoji_pos[posidx++].second - 1; // minus 1 for the ++i in loop
}
}
// surround emoji with span
std::string pre = "<span class=\"msg-emoji\">";
std::string post = "</span>";
int moved = 0;
for (auto const &p : emoji_pos)
{
if (!bepaald::contains(positions_excluded_from_escape, p.first)) [[likely]]
{
body->insert(p.first + moved, pre);
body->insert(p.first + p.second + pre.size() + moved, post);
moved += pre.size() + post.size();
}
}
return all_emoji;
// if (changed)
// {
// std::cout << "ORIG: " << orig << std::endl;
// std::cout << "NEW : " << *body << std::endl;
// }
}
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