ios - Dynamically change a .ipa file on server -

i have .ipa file (ios app) i'm letting users install ad-hoc (over air on private server, using enterprise account).

challenge apps differentiate bit app app. have different logos , different url use inside app.

is possible dynamically change .ipa file have on server before people download it?

further explanation:

i have stress, can't make .ipa file each app. have able change start screen, logo , set url variable single .ipa file.

i other words, need dynamically change .ipa file on server each time wants download it.

what love have:

i love have example/guide on how on heroku or amazon server. nothing fancy. changing variable in info.plist , codesign again afterwards.

as has been stated can unzip , zip again create own ipa.

all further need add resources don't need code signing.

your best bet create new (empty) directory in ipa. directories not signed, extracted on device , can detected code.

in other words: coderesources file containing signatures not change when adding empty directory.

a simple test did, create folder reference folder called "extra", contents of decoded using percent encoding , displayed in popup:

nsstring *path = [[nsbundle mainbundle] pathforresource:@"extra" oftype:@""]; nsdirectoryenumerator *direnum = [[nsfilemanager defaultmanager] enumeratoratpath:path]; nsstring *f; while (f = [direnum nextobject]) {     nsstring *decoded = [f stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding];     uialertview *alert = [[[uialertview alloc] initwithtitle:nil message:decoded delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil] autorelease];     [alert show]; } 

this can used send subliminal messages code. percent encoding allows put in character like. tested filename lengths 100 chars.

all further need code dynamically add empty directory under payload/yourapp.app/extra/ ipa, percent encoded message filename, e.g. payload/yourapp.app/extra/http%3a%2f%2fstackoverflow.com%2f

update: example shell commands add directory ipa:

$ mkdir -p payload/myapp.app/extra/http%3a%2f%2fstackoverflow.com%2f $ zip -r myapp.ipa payload/ updating: payload/ (stored 0%) updating: payload/myapp.app/ (stored 0%)  updating: payload/myapp.app/extra/ (stored 0%)   adding: payload/myapp.app/extra/http%3a%2f%2fstackoverflow.com%2f/ (stored 0%)  $ rm -r payload/ 

you of course need create clean copy of ipa every time, or urls pile under /extra/ inside ipa.