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#pragma once
#include <QByteArray>
#include <QHash>
#include <QList>
#include <QString>
/// An inline part referenced by a cid: URL from the HTML body.
struct InlinePart
{
QString mimeType;
QByteArray data;
};
struct Attachment
{
QString filename; ///< As it appeared in the message. Untrusted.
QString mimeType;
QByteArray data;
/// filename reduced to a basename safe to join onto a directory.
/// Attacker-controlled input: a filename may contain path separators or
/// "..", so anything that could escape the target directory is stripped.
/// Returns a generated name when nothing usable remains.
QString safeFilename() const;
/// Writes the attachment into directory. Returns the full path written, or
/// an empty string on failure with *error set.
QString saveTo(const QString &directory, QString *error) const;
};
struct ParsedMessage
{
bool ok = false;
QString error;
QString subject;
QString from;
QString to;
QString cc;
QString date;
QString messageId;
QString plainBody;
QString htmlBody;
QHash<QString, InlinePart> inlineParts; ///< Keyed by Content-ID, no <>.
QList<Attachment> attachments;
bool hasHtml() const { return !htmlBody.isEmpty(); }
};
/// Parses a single message file using GMime.
///
/// Hand-rolling this would mean reimplementing RFC 2047 encoded words, RFC 2231
/// parameter continuations, transfer encodings, and charset conversion, plus
/// tolerance for malformed real-world mail.
class MimeParser
{
public:
MimeParser();
ParsedMessage parse(const QString &filePath) const;
};
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