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Privatise some structs and enumerations of PGP update 

Export update_GetRelease() to the plugins
Modify qt4 & wx GUIs to reflect this change
This commit is contained in:
Rafaël Carré 2008-05-27 12:33:47 +02:00
parent 1589b92e32
commit 85f5092ee6
7 changed files with 182 additions and 136 deletions
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1
extras/buildsystem/cmake/CMakeLists/src_CMakeLists.txt
View File

@ -118,6 +118,7 @@ set( SOURCES_libvlccore_common
misc/variables.h
misc/variables.c
misc/error.c
misc/update.h
misc/update.c
${CMAKE_BINARY_DIR}/src/misc/revision.c
input/vlm.c

136
include/vlc_update.h
View File

@ -1,5 +1,5 @@
/*****************************************************************************
* vlc_update.h: VLC update and plugins download
* vlc_update.h: VLC update download
*****************************************************************************
* Copyright © 2005-2007 the VideoLAN team
* $Id$
@ -39,128 +39,6 @@
* @{
*/
/* Go reading the rfc 4880 ! NOW !! */
/*
* XXX
* When PGP-signing a file, we only sign a SHA-1 hash of this file
* The DSA key size requires that we use an algorithm which produce
* a 160 bits long hash
* An alternative is RIPEMD160 , which you can use by giving the option
* --digest-algo RIPEMD160 to GnuPG
*
* As soon as SHA-1 is broken, this method is not secure anymore, because an
* attacker could generate a file with the same SHA-1 hash.
*
* Whenever this happens, we need to use another algorithm / type of key.
* XXX
*/
enum /* Public key algorithms */
{
/* we will only use DSA public keys */
PUBLIC_KEY_ALGO_DSA = 0x11
};
enum /* Digest algorithms */
{
/* and DSA use SHA-1 digest */
DIGEST_ALGO_SHA1 = 0x02
};
enum /* Packet types */
{
SIGNATURE_PACKET = 0x02,
PUBLIC_KEY_PACKET = 0x06,
USER_ID_PACKET = 0x0d
};
enum /* Signature types */
{
BINARY_SIGNATURE = 0x00,
TEXT_SIGNATURE = 0x01,
/* Public keys signatures */
GENERIC_KEY_SIGNATURE = 0x10, /* No assumption of verification */
PERSONA_KEY_SIGNATURE = 0x11, /* No verification has been made */
CASUAL_KEY_SIGNATURE = 0x12, /* Some casual verification */
POSITIVE_KEY_SIGNATURE = 0x13 /* Substantial verification */
};
enum /* Signature subpacket types */
{
ISSUER_SUBPACKET = 0x10
};
struct public_key_packet_t
{ /* a public key packet (DSA/SHA-1) is 418 bytes */
uint8_t version; /* we use only version 4 */
uint8_t timestamp[4]; /* creation time of the key */
uint8_t algo; /* we only use DSA */
/* the multi precision integers, with their 2 bytes length header */
uint8_t p[2+128];
uint8_t q[2+20];
uint8_t g[2+128];
uint8_t y[2+128];
};
/* used for public key and file signatures */
struct signature_packet_t
{
uint8_t version; /* 3 or 4 */
uint8_t type;
uint8_t public_key_algo; /* DSA only */
uint8_t digest_algo; /* SHA-1 only */
uint8_t hash_verification[2];
uint8_t issuer_longid[8];
union /* version specific data */
{
struct
{
uint8_t hashed_data_len[2]; /* scalar number */
uint8_t *hashed_data; /* hashed_data_len bytes */
uint8_t unhashed_data_len[2]; /* scalar number */
uint8_t *unhashed_data; /* unhashed_data_len bytes */
} v4;
struct
{
uint8_t hashed_data_len; /* MUST be 5 */
uint8_t timestamp[4]; /* 4 bytes scalar number */
} v3;
} specific;
/* The part below is made of consecutive MPIs, their number and size being
* public-key-algorithm dependant.
*
* Since we use DSA signatures only, there is 2 integers, r & s, made of:
* 2 bytes for the integer length (scalar number)
* 160 bits (20 bytes) for the integer itself
*
* Note: the integers may be less than 160 significant bits
*/
uint8_t r[2+20];
uint8_t s[2+20];
};
typedef struct public_key_packet_t public_key_packet_t;
typedef struct signature_packet_t signature_packet_t;
struct public_key_t
{
uint8_t longid[8]; /* Long id */
uint8_t *psz_username; /* USER ID */
public_key_packet_t key; /* Public key packet */
signature_packet_t sig; /* Signature packet, by the embedded key */
};
typedef struct public_key_t public_key_t;
/**
* Describes an update VLC release number
*/
@ -174,16 +52,7 @@ struct update_release_t
char* psz_desc; ///< Release description
};
/**
* The update object. Stores (and caches) all information relative to updates
*/
struct update_t
{
libvlc_int_t *p_libvlc;
vlc_mutex_t lock;
struct update_release_t release; ///< Release (version)
public_key_t *p_pkey;
};
typedef struct update_release_t update_release_t;
#define update_New( a ) __update_New( VLC_OBJECT( a ) )
@ -192,6 +61,7 @@ VLC_EXPORT( void, update_Delete, ( update_t * ) );
VLC_EXPORT( void, update_Check, ( update_t *, void (*callback)( void*, bool ), void * ) );
VLC_EXPORT( bool, update_NeedUpgrade, ( update_t * ) );
VLC_EXPORT( void, update_Download, ( update_t *, char* ) );
VLC_EXPORT( update_release_t*, update_GetRelease, ( update_t * ) );
/**
* @}

4
modules/gui/qt4/dialogs/help.cpp
View File

@ -286,10 +286,12 @@ void UpdateDialog::updateNotify( bool b_result )
{
if( update_NeedUpgrade( p_update ) )
{
update_release_t *p_release = update_GetRelease( p_update );
assert( p_release );
b_checked = true;
updateButton->setText( "Download" );
updateLabel->setText( qtr( "There is a new version of VLC :\n" )
+ qfu( p_update->release.psz_desc ) );
+ qfu( p_release->psz_desc ) );
}
else
updateLabel->setText( qtr( "You have the latest version of VLC" ) );

8
modules/gui/wxwidgets/dialogs/updatevlc.cpp
View File

@ -113,9 +113,13 @@ void UpdateVLC::OnCheckForUpdate( wxCommandEvent& event )
i_image );*/
if( update_NeedUpgrade( p_update ) )
main_sizer->Add( new wxStaticText( this, -1, wxU( p_update->release.psz_desc )
{
update_release_t *p_release = update_GetRelease( p_update );
assert( p_release );
main_sizer->Add( new wxStaticText( this, -1, wxU( p_release->psz_desc )
+ wxU( "\nYou can download the latest version of VLC at the adress :\n" )
+ wxU( p_update->release.psz_url ) ) );
+ wxU( p_release->psz_url ) ) );
}
else
main_sizer->Add( new wxStaticText( this, -1,
wxU( _( "\nYou have the latest version of VLC\n" ) ) ) );

1
src/Makefile.am
View File

@ -358,6 +358,7 @@ SOURCES_libvlc_common = \
misc/variables.h \
misc/variables.c \
misc/error.c \
misc/variables.h \
misc/update.c \
misc/xml.c \
misc/devices.c \

13
src/misc/update.c
View File

@ -52,6 +52,7 @@
#include <gcrypt.h>
#include <vlc_gcrypt.h>
#include "update.h"
/*****************************************************************************
* Misc defines
@ -1638,6 +1639,12 @@ end:
vlc_object_release( p_udt );
}
update_release_t *update_GetRelease( update_t *p_update )
{
return &p_update->release;
}
#else
update_t *__update_New( vlc_object_t *p_this )
{
@ -1666,4 +1673,10 @@ void update_Download( update_t *p_update, char *psz_destdir )
{
(void)p_update; (void)psz_destdir;
}
update_release_t *update_GetRelease( update_t *p_update )
{
(void)p_update;
return NULL;
}
#endif

155
src/misc/update.h Normal file
View File

@ -0,0 +1,155 @@
/*****************************************************************************
* update.h: VLC PGP update private API
*****************************************************************************
* Copyright © 2007-2008 the VideoLAN team
*
* Authors: Rafaël Carré <funman@videolanorg>
*
* This program 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 release 2 of the License, or
* (at your option) any later release.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/* Go reading the rfc 4880 ! NOW !! */
/*
* XXX
* When PGP-signing a file, we only sign a SHA-1 hash of this file
* The DSA key size requires that we use an algorithm which produce
* a 160 bits long hash
* An alternative is RIPEMD160 , which you can use by giving the option
* --digest-algo RIPEMD160 to GnuPG
*
* As soon as SHA-1 is broken, this method is not secure anymore, because an
* attacker could generate a file with the same SHA-1 hash.
*
* Whenever this happens, we need to use another algorithm / type of key.
* XXX
*/
enum /* Public key algorithms */
{
/* we will only use DSA public keys */
PUBLIC_KEY_ALGO_DSA = 0x11
};
enum /* Digest algorithms */
{
/* and DSA use SHA-1 digest */
DIGEST_ALGO_SHA1 = 0x02
};
enum /* Packet types */
{
SIGNATURE_PACKET = 0x02,
PUBLIC_KEY_PACKET = 0x06,
USER_ID_PACKET = 0x0d
};
enum /* Signature types */
{
BINARY_SIGNATURE = 0x00,
TEXT_SIGNATURE = 0x01,
/* Public keys signatures */
GENERIC_KEY_SIGNATURE = 0x10, /* No assumption of verification */
PERSONA_KEY_SIGNATURE = 0x11, /* No verification has been made */
CASUAL_KEY_SIGNATURE = 0x12, /* Some casual verification */
POSITIVE_KEY_SIGNATURE = 0x13 /* Substantial verification */
};
enum /* Signature subpacket types */
{
ISSUER_SUBPACKET = 0x10
};
struct public_key_packet_t
{ /* a public key packet (DSA/SHA-1) is 418 bytes */
uint8_t version; /* we use only version 4 */
uint8_t timestamp[4]; /* creation time of the key */
uint8_t algo; /* we only use DSA */
/* the multi precision integers, with their 2 bytes length header */
uint8_t p[2+128];
uint8_t q[2+20];
uint8_t g[2+128];
uint8_t y[2+128];
};
/* used for public key and file signatures */
struct signature_packet_t
{
uint8_t version; /* 3 or 4 */
uint8_t type;
uint8_t public_key_algo; /* DSA only */
uint8_t digest_algo; /* SHA-1 only */
uint8_t hash_verification[2];
uint8_t issuer_longid[8];
union /* version specific data */
{
struct
{
uint8_t hashed_data_len[2]; /* scalar number */
uint8_t *hashed_data; /* hashed_data_len bytes */
uint8_t unhashed_data_len[2]; /* scalar number */
uint8_t *unhashed_data; /* unhashed_data_len bytes */
} v4;
struct
{
uint8_t hashed_data_len; /* MUST be 5 */
uint8_t timestamp[4]; /* 4 bytes scalar number */
} v3;
} specific;
/* The part below is made of consecutive MPIs, their number and size being
* public-key-algorithm dependant.
*
* Since we use DSA signatures only, there is 2 integers, r & s, made of:
* 2 bytes for the integer length (scalar number)
* 160 bits (20 bytes) for the integer itself
*
* Note: the integers may be less than 160 significant bits
*/
uint8_t r[2+20];
uint8_t s[2+20];
};
typedef struct public_key_packet_t public_key_packet_t;
typedef struct signature_packet_t signature_packet_t;
struct public_key_t
{
uint8_t longid[8]; /* Long id */
uint8_t *psz_username; /* USER ID */
public_key_packet_t key; /* Public key packet */
signature_packet_t sig; /* Signature packet, by the embedded key */
};
typedef struct public_key_t public_key_t;
/**
* The update object. Stores (and caches) all information relative to updates
*/
struct update_t
{
libvlc_int_t *p_libvlc;
vlc_mutex_t lock;
struct update_release_t release; ///< Release (version)
public_key_t *p_pkey;
};