2026-06-04 18:29:16 +02:00
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#include <gmime/gmime.h>
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#include <stdio.h>
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// Undefine macros that conflict with Qt's signals/slots
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#ifdef public
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#undef public
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#endif
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#ifdef signals
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#undef signals
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#endif
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#ifdef slots
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#undef slots
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#endif
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#ifdef emit
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#undef emit
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#endif
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2026-05-24 00:02:19 +02:00
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#include "emailmanager.h"
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2026-05-17 03:08:16 +02:00
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#include <QDir>
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#include <QStandardPaths>
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#include "../db/dao/mailitemdao.h"
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2026-05-24 00:02:19 +02:00
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#include <QFile>
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2026-05-24 21:01:05 +02:00
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#include <QMessageBox>
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2026-05-17 03:08:16 +02:00
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2026-06-04 18:29:16 +02:00
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/* Helper: recursively find a part with given subtype */
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static GMimeObject *find_part_by_subtype(GMimeObject *obj, const char *subtype)
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{
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if (!obj)
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return nullptr;
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GMimeContentType *ctype = g_mime_object_get_content_type(obj);
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if (ctype &&
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g_ascii_strcasecmp(g_mime_content_type_get_media_subtype(ctype), subtype) == 0)
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return obj;
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if (GMIME_IS_MULTIPART(obj)) {
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GMimeMultipart *multipart = GMIME_MULTIPART(obj);
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guint count = g_mime_multipart_get_count(multipart);
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for (guint i = 0; i < count; ++i) {
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GMimeObject *part = g_mime_multipart_get_part(multipart, i);
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GMimeObject *found = find_part_by_subtype(part, subtype);
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if (found)
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return found;
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g_object_unref(part);
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}
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}
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return nullptr;
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}
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/* Helper: extract content as QString */
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static QString extract_content_as_string(GMimeObject *obj)
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{
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GMimeStream *stream = g_mime_stream_mem_new();
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g_mime_object_write_to_stream(obj, nullptr, stream);
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GMimeStreamMem *mem = GMIME_STREAM_MEM(stream);
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GByteArray *array = g_mime_stream_mem_get_byte_array(mem);
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const char *data = reinterpret_cast<const char*>(array->data);
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gsize size = array->len;
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QString result = QString::fromUtf8(data, size);
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g_object_unref(stream);
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return result;
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}
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2026-05-17 03:08:16 +02:00
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EmailManager::EmailManager(QObject *parent)
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: QObject(parent)
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{
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}
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MailItem EmailManager::getMailItemById(qint64 id) const
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{
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auto optItem = MailItemDao::findById(id);
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2026-06-04 18:29:16 +02:00
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return optItem.has_value() ? optItem.value() : MailItem();
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}
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QString EmailManager::getStorageDirectory() const
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{
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QString storagePath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
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QDir dir(storagePath);
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if (!dir.exists())
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dir.mkpath(".");
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return storagePath;
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2026-05-24 00:02:19 +02:00
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}
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2026-05-24 21:01:05 +02:00
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QString EmailManager::getEmailHtmlById(qint64 id) const
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{
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MailItem item = getMailItemById(id);
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if (item.id() == 0)
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return "<html><body><h2>Error: Email not found</h2></body></html>";
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2026-06-04 18:29:16 +02:00
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2026-05-24 21:01:05 +02:00
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QString storageDir = getStorageDirectory();
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QString fileName = item.fileId();
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if (fileName.isEmpty())
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return "<html><body><h2>Error: Email file ID is empty</h2></body></html>";
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2026-06-04 18:29:16 +02:00
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2026-05-24 21:01:05 +02:00
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QString filePath = storageDir + QDir::separator() + fileName + ".eml";
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return convertEmlToHtml(filePath);
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}
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2026-05-24 00:02:19 +02:00
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QString EmailManager::convertEmlToHtml(const QString& emlFilePath) const
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{
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static bool initialized = false;
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if (!initialized) {
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g_mime_init();
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initialized = true;
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2026-05-24 00:02:19 +02:00
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}
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2026-06-04 18:29:16 +02:00
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FILE *fp = fopen(emlFilePath.toLocal8Bit().constData(), "r");
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if (!fp)
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return "<html><body><h2>Error: Cannot open email file</h2></body></html>";
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2026-06-04 18:29:16 +02:00
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GMimeStream *istream = g_mime_stream_fs_new(fileno(fp));
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GMimeParser *parser = g_mime_parser_new_with_stream(istream);
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GMimeMessage *message = g_mime_parser_construct_message(parser, nullptr);
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g_object_unref(parser);
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g_object_unref(istream);
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fclose(fp);
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if (!message)
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return "<html><body><h2>Error: Failed to parse email message</h2></body></html>";
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/* Try to get HTML part */
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GMimeObject *htmlPart = find_part_by_subtype(GMIME_OBJECT(message), "html");
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if (htmlPart) {
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QString html = extract_content_as_string(htmlPart);
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g_object_unref(htmlPart);
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g_object_unref(message);
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return html;
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2026-05-24 00:02:19 +02:00
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}
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2026-06-04 18:29:16 +02:00
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/* Fallback to plain text */
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GMimeObject *textPart = find_part_by_subtype(GMIME_OBJECT(message), "plain");
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if (textPart) {
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QString plain = extract_content_as_string(textPart);
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g_object_unref(textPart);
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g_object_unref(message);
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QString escaped = plain;
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escaped.replace("&", "&").replace("<", "<").replace(">", ">");
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return QString("<html><body style='font-family:monospace;'><pre>%1</pre></body></html>")
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.arg(escaped);
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}
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/* No displayable part */
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g_object_unref(message);
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return "<html><body><h2>Error: No displayable content in email</h2></body></html>";
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2026-05-24 21:01:05 +02:00
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}
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bool EmailManager::sendEmail(const QString& to, const QString& subject, const QString& body)
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{
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2026-06-04 18:29:16 +02:00
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/* TODO: Implement real sending via RequestProcessor */
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QMessageBox::information(nullptr, "Send Email",
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2026-05-24 21:01:05 +02:00
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QString("To: %1\nSubject: %2\nBody: %3").arg(to, subject, body));
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return true;
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2026-05-17 03:08:16 +02:00
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}
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