nsIZipReader.idl
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface nsIUTF8StringEnumerator;
interface nsIInputStream;
interface nsIFile;
interface nsICertificatePrincipal;
[scriptable, uuid(e1c028bc-c478-11da-95a8-00e08161165f)]
interface nsIZipEntry : nsISupports
{
/**
* The type of compression used for the item. The possible values and
* their meanings are defined in the zip file specification at
* http://www.pkware.com/business_and_developers/developer/appnote/
*/
readonly attribute unsigned short compression;
/**
* The compressed size of the data in the item.
*/
readonly attribute unsigned long size;
/**
* The uncompressed size of the data in the item.
*/
readonly attribute unsigned long realSize;
/**
* The CRC-32 hash of the file in the entry.
*/
readonly attribute unsigned long CRC32;
/**
* True if the name of the entry ends with '/' and false otherwise.
*/
readonly attribute boolean isDirectory;
/**
* The time at which this item was last modified.
*/
readonly attribute PRTime lastModifiedTime;
/**
* Use this attribute to determine whether this item is an actual zip entry
* or is one synthesized for part of a real entry's path. A synthesized
* entry represents a directory within the zip file which has no
* corresponding entry within the zip file. For example, the entry for the
* directory foo/ in a zip containing exactly one entry for foo/bar.txt
* is synthetic. If the zip file contains an actual entry for a directory,
* this attribute will be false for the nsIZipEntry for that directory.
* It is impossible for a file to be synthetic.
*/
readonly attribute boolean isSynthetic;
};
[scriptable, uuid(38d6d07a-8a58-4fe7-be8b-ef6472fa83ff)]
interface nsIZipReader : nsISupports
{
/**
* Opens a zip file for reading.
* It is allowed to open with another file,
* but it needs to be closed first with close().
*/
void open(in nsIFile zipFile);
/**
* Opens a zip file inside a zip file for reading.
*/
void openInner(in nsIZipReader zipReader, in AUTF8String zipEntry);
/**
* The file that represents the zip with which this zip reader was
* initialized.
*/
readonly attribute nsIFile file;
/**
* Closes a zip reader. Subsequent attempts to extract files or read from
* its input stream will result in an error.
*/
void close();
/**
* Tests the integrity of the archive by performing a CRC check
* on each item expanded into memory. If an entry is specified
* the integrity of only that item is tested. If null (javascript)
* or EmptyCString() (c++) is passed in the integrity of all items
* in the archive are tested.
*/
void test(in AUTF8String aEntryName);
/**
* Extracts a zip entry into a local file specified by outFile.
* The entry must be stored in the zip in either uncompressed or
* DEFLATE-compressed format for the extraction to be successful.
* If the entry is a directory, the directory will be extracted
* non-recursively.
*/
void extract(in AUTF8String zipEntry, in nsIFile outFile);
/**
* Returns a nsIZipEntry describing a specified zip entry.
*/
nsIZipEntry getEntry(in AUTF8String zipEntry);
/**
* Checks whether the zipfile contains an entry specified by entryName.
*/
boolean hasEntry(in AUTF8String zipEntry);
/**
* Returns a string enumerator containing the matching entry names.
*
* @param aPattern
* A regular expression used to find matching entries in the zip file.
* Set this parameter to null (javascript) or EmptyCString() (c++) or "*"
* to get all entries; otherwise, use the
* following syntax:
*
* o * matches anything
* o ? matches one character
* o $ matches the end of the string
* o [abc] matches one occurrence of a, b, or c. The only character that
* must be escaped inside the brackets is ]. ^ and - must never
* appear in the first and second positions within the brackets,
* respectively. (In the former case, the behavior specified for
* '[^az]' will happen.)
* o [a-z] matches any character between a and z. The characters a and z
* must either both be letters or both be numbers, with the
* character represented by 'a' having a lower ASCII value than
* the character represented by 'z'.
* o [^az] matches any character except a or z. If ] is to appear inside
* the brackets as a character to not match, it must be escaped.
* o pat~pat2 returns matches to the pattern 'pat' which do not also match
* the pattern 'pat2'. This may be used to perform filtering
* upon the results of one pattern to remove all matches which
* also match another pattern. For example, because '*'
* matches any string and '*z*' matches any string containing a
* 'z', '*~*z*' will match all strings except those containing
* a 'z'. Note that a pattern may not use '~' multiple times,
* so a string such as '*~*z*~*y*' is not a valid pattern.
* o (foo|bar) will match either the pattern foo or the pattern bar.
* Neither of the patterns foo or bar may use the 'pat~pat2'
* syntax described immediately above.
* o \ will escape a special character. Escaping is required for all
* special characters unless otherwise specified.
* o All other characters match case-sensitively.
*
* An aPattern not conforming to this syntax has undefined behavior.
*
* @throws NS_ERROR_ILLEGAL_VALUE on many but not all invalid aPattern
* values.
*/
nsIUTF8StringEnumerator findEntries(in AUTF8String aPattern);
/**
* Returns an input stream containing the contents of the specified zip
* entry.
* @param zipEntry the name of the entry to open the stream from
*/
nsIInputStream getInputStream(in AUTF8String zipEntry);
/**
* Returns an input stream containing the contents of the specified zip
* entry. If the entry refers to a directory (ends with '/'), a directory stream
* is opened, otherwise the contents of the file entry is returned.
* @param aJarSpec the Spec of the URI for the JAR (only used for directory streams)
* @param zipEntry the name of the entry to open the stream from
*/
nsIInputStream getInputStreamWithSpec(in AUTF8String aJarSpec, in AUTF8String zipEntry);
/**
* Returns an object describing the entity which signed
* an entry. parseManifest must be called first. If aEntryName is an
* entry in the jar, getInputStream must be called after parseManifest.
* If aEntryName is an external file which has meta-information
* stored in the jar, verifyExternalFile (not yet implemented) must
* be called before getPrincipal.
*/
nsICertificatePrincipal getCertificatePrincipal(in AUTF8String aEntryName);
readonly attribute uint32_t manifestEntriesCount;
};
////////////////////////////////////////////////////////////////////////////////
// nsIZipReaderCache
[scriptable, uuid(748050ac-3ab6-4472-bc2a-cb1564ac6a81)]
interface nsIZipReaderCache : nsISupports
{
/**
* Initializes a new zip reader cache.
* @param cacheSize - the number of released entries to maintain before
* beginning to throw some out (note that the number of outstanding
* entries can be much greater than this number -- this is the count
* for those otherwise unused entries)
*/
void init(in unsigned long cacheSize);
/**
* Returns a (possibly shared) nsIZipReader for an nsIFile.
*
* If the zip reader for given file is not in the cache, a new zip reader
* is created, initialized, and opened (see nsIZipReader::init and
* nsIZipReader::open). Otherwise the previously created zip reader is
* returned.
*
* @note If someone called close() on the shared nsIZipReader, this method
* will return the closed zip reader.
*/
nsIZipReader getZip(in nsIFile zipFile);
/**
* returns true if this zipreader already has this file cached
*/
bool isCached(in nsIFile zipFile);
/**
* Returns a (possibly shared) nsIZipReader for a zip inside another zip
*
* See getZip
*/
nsIZipReader getInnerZip(in nsIFile zipFile, in AUTF8String zipEntry);
};
////////////////////////////////////////////////////////////////////////////////
%{C++
#define NS_ZIPREADER_CID \
{ /* 88e2fd0b-f7f4-480c-9483-7846b00e8dad */ \
0x88e2fd0b, 0xf7f4, 0x480c, \
{ 0x94, 0x83, 0x78, 0x46, 0xb0, 0x0e, 0x8d, 0xad } \
}
#define NS_ZIPREADERCACHE_CID \
{ /* 608b7f6f-4b60-40d6-87ed-d933bf53d8c1 */ \
0x608b7f6f, 0x4b60, 0x40d6, \
{ 0x87, 0xed, 0xd9, 0x33, 0xbf, 0x53, 0xd8, 0xc1 } \
}
%}
////////////////////////////////////////////////////////////////////////////////
