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in flash player's security model, flash applications , swf files on local computer not allowed communicate both internet , local file system default. local swf file swf file locally installed on user's computer, not served website, , not include projector (exe) files.
note |
| the restrictions discussed in section not affect swf files on internet. |
when create fla file, can indicate whether swf file allowed communicate network or local file system. in previous versions of flash player (7 , earlier), local swf files interact other swf files , load data remote or local location. in flash player 8 , later, swf file cannot make connections local file system and internet. safety change, swf file cannot read files on hard disk , send contents of files across internet.
this security restriction affects locally deployed content, whether legacy content (a fla file created in earlier version of flash) or created in flash 8 , later. suppose deploy flash application, using flash mx 2004 or earlier, runs locally , accesses internet. in flash player 8 , later, application prompts user permission communicate internet.
when test file on hard disk, there series of steps determine whether file local trusted document or potentially untrusted document. if create file in flash authoring environment (for example, when select control > test movie), file trusted because in test environment.
in flash player 7 , earlier, local swf files had permissions read both local file system , network (such internet). in flash player 8 , later, local swf files can have following levels of permission:
access local file system (default) a local swf file can read local file system , universal naming convention (unc) network paths cannot communicate internet. more information on local file access swf files, see access local files (default).
access network only local swf file can access network (such internet) not local file system installed. more information on network-only swf files, see access network only.
access local file system , network local swf file can read local file system installed, read , write , servers, , can cross-script other swf files on either network or local file system. these files trusted, , behave did in flash player 7. more information on local , network access swf files, see access file system , network.
for more information on local file security in flash 8 , later pertains authoring tool, see following sections:
- understanding local security sandboxes
- about flash player security settings
- about local file security , projector files
- about troubleshooting legacy swf files
- fixing legacy content deployed on local computers
- publishing files local deployment
for information local file security users, see about flash player security settings. more information on security, see www.adobe.com/devnet/security/ and www.adobe.com/software/flashplayer/security/.
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