b94857b322
* Add class DatabaseLocation. It contains a list of the MIME DB
directory paths plus methods to access type files.
* Move all low-level MIME DB access functions from
database_{support,access} to DatabaseLocation. All code that formerly
used those now requires a DatabaseLocation object. In BMimeType and in
the registrar the default object is used, but the low-level classes
can now be reused with different locations.
* Move get_icon_data() from database_access to database_support and
delete the former, which is now empty.
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/*
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* Copyright 2002-2007, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _MIME_SNIFFER_RULES_H
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#define _MIME_SNIFFER_RULES_H
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#include <SupportDefs.h>
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#include <list>
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#include <string>
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class BFile;
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class BString;
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struct entry_ref;
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namespace BPrivate {
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namespace Storage {
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namespace Sniffer {
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class Rule;
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}
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namespace Mime {
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class DatabaseLocation;
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class MimeSniffer;
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class SnifferRules {
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public:
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SnifferRules(DatabaseLocation* databaseLocation, MimeSniffer* mimeSniffer);
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~SnifferRules();
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status_t GuessMimeType(const entry_ref *ref, BString *type);
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status_t GuessMimeType(const void *buffer, int32 length, BString *type);
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status_t SetSnifferRule(const char *type, const char *rule);
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status_t DeleteSnifferRule(const char *type);
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void PrintToStream() const;
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struct sniffer_rule {
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std::string type; // The mime type that own the rule
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std::string rule_string; // The unparsed string version of the rule
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BPrivate::Storage::Sniffer::Rule *rule; // The parsed rule
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sniffer_rule(BPrivate::Storage::Sniffer::Rule *rule = NULL);
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~sniffer_rule();
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};
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private:
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status_t BuildRuleList();
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status_t GuessMimeType(BFile* file, const void *buffer, int32 length,
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BString *type);
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ssize_t MaxBytesNeeded();
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status_t ProcessType(const char *type, ssize_t *bytesNeeded);
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std::list<sniffer_rule> fRuleList;
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private:
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DatabaseLocation* fDatabaseLocation;
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MimeSniffer* fMimeSniffer;
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ssize_t fMaxBytesNeeded;
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bool fHaveDoneFullBuild;
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};
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} // namespace Mime
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} // namespace Storage
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} // namespace BPrivate
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#endif // _MIME_SNIFFER_H
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