Upload Assets

24 June 2020

C10 - removed extended image file formats in favor of built-in types.

27 May 2017

Release 9.164
- Added optional mono parameter when uploading scripts.
- The command returns script compilation errors.
- The command updates inventory assets such as notecards and scripts if they already exist in the inventory.
- The command now uses the Corrade permission system notation.

13 July 2016

Release 9.105 - the command now returns both the inventory item UUID and the asset UUID of the uploaded item (if any).

10 July 2016

Relese 9.104 - added extended formats for the Windows platform.

4 May 2015

Release 7.82 - Corrade now supports uploading multiple image formats for the Texture asset type.

14 December 2014

Release 7.28 - added.

The upload command can be used upload assets onto the grid.

Command Required Parameters Required Corrade Permissions Example

upload

group, password, name, type, data

inventory, economy

llInstantMessage(CORRADE,
    wasKeyValueEncode(
        [
            // Create a script called "Good day!"
            // with the content passed to "data"
            // and set permissions to MODIFY COPY.
            "command", "upload",
            "group", wasURLEscape(GROUP),
            "password", wasURLEscape(PASSWORD),
            "name", "Good day!",
            "type", "LSLText",
            "data", wasURLEscape(llStringToBase64("
                default {
                    state_entry() {
                        llOwnerSay(\"Good day!\");
                    }
                }
            ")),
            // "Copy" and "Modify" permissions.
            "permissions", "c--mvt------------c--mv-c--mvt",
            "callback", wasURLEscape(URL)
        ]
    )
);

Optional Parameter	Description
`description`	The description of the asset.
`permissions`	The permissions in Corrade permission system notation for the next owner (this option is ignored for Landmarks which always have full permission).
`item`	If an item by name or inventory path (ex: `/My Inventory/Notecards/MyNote`) is specified, then that item will be updated and no new item created.
`mono`	When uploading a script, if mono is set to `True` (by default set to `True`) then Corrade will use the mono compiler instead of LSO.

The possible and currently supported uploadable assets are the following:

Parameter	Possible Value	Parameter	Description	Example
`type`	`Texture`		Uploads a texture that is encoded in either JPEG2000 or one of the other supported formats.	llInstantMessage(CORRADE, wasKeyValueEncode( [ // Upload a texture and call it Skull "command", "upload", "group", wasURLEscape(GROUP), "password", wasURLEscape(PASSWORD), // The name as it will appear in the // inventory textures folder. "name", "Skull", "type", "Texture", // The Base64-encoded image binary data. // (This is a small skull texture in TGA // format that has been encoded to Base64) "data", wasURLEscape(" iVBORw0KGgoAAAANSUhEUgAAAEAAAABAAQAAAACCEkxzAAAAAnRSTlMAAQGU/a4A AADySURBVHgBjdK3lQMhGATgQd6jUBltXCJTikq48LJlnxpDZ9tAHWwow4Mb/t3z dqIPb5Ga/AGgEARACyqgLXAABOgHrInIrtYQQbGbJo7seewTLKWY4Q3nbGesiZJw BeEyEuOJUlA0qN6j/QHH9XsYYkG0iDjI0N8hLBpEwUQfZwMC87ZvgTNbKK9qwEGw cc7ajNLv/TZvdeecYL+zbiuwykPg2hU8Ufr+UeWtKt8P7Srv8Di/08c1eBFVOwkO VfsgsNdte8M+wNUTIDCxXh06AHnRiQ4TRRxXOpg+kSKR/g3lGwBrQXqFRVHDqVQj mN//xjODplxESg0eZQAAAABJRU5ErkJggg== "), "callback", wasURLEscape(URL) ] ) );
	`Sound`		Uploads a sound in OGG Vorbis format.
	`Animation`		Uploads an animation in .animatn format.
	`Clothing`	`wear`	Uploads wearables for a certain clothing slot (`wear`) set to one of the values of the WearableType enumeration.
	`Bodypart`	`wear`	Uploads body parts for a certain slot (`wear`) set to one of the values of the WearableType enumeration.
	`Landmark`		Uploads landmarks.
	`Gesture`		Uploads gestures.
	`Notecard`		Uploads notecards.
	`LSLText`		Uploads scripts.

and the data passed to the data parameter is compatible with the data retrieved by the download command.

Supported Texture Image Formats

Grid clients such as Corrade download and upload textures to the grid in the JPEG2000 image format. The JPEG2000 image format is defined with various profiles, such that if the downloaded image is saved to a file and then inspected by the file or exiftool command line utilities, the detected image description should be:

JPEG2000 codestream

which indicates a Profile 0 JPEG2000 which is what the SecondLife grid is using.

The proper file extension for such images is "j2c" which stands for "JPEG2000 codestream". Some tools may not properly implement nor respect the file extension. One tool that manages to correctly convert images to "JPEG2000 codestream" is ImageMagick with the mogrify tool. For instance, supposing that an image x.png exists in the current directroy, then issuing the command:

mogrify -format "J2K" x.png

will result in a new image created x.j2k that, when inspected with the file tool:

file x.j2k

should output:

x.J2K: JPEG 2000 codestream

Other tools, such as ffmpeg will convert an image that when inspected with the file utility will read x.j2k: JPEG 2000 Part 1 (JP2) which will fail to upload with Corrade to SecondLife.

Furthermore, Corrade follows the SecondLife limits on texture uploads without any processing such that the user must ensure that the texture to be uploaded conforms to the specification.

One condition imposed by SecondLife is that the height and width of the image should be a power of 2 otherwise the image will not be uploaded. When uploading with a regular viewer, the viewer disguises a transformation that changes the image such that the width and height are a power of 2. However, when using Corrade, this transformation has to be performed beforehand in order for the upload to succeed.

2021/06/10 07:57

Supported Sound Formats

Corrade uploads OGG Vorbis files with the same specification that is listed on the official wiki. In case the uploaded sound seems distorted please check that all the parameters have been met. Typically, the audio rate is the culprit for most sound distortions and one must make sure that the rate of the file to be uploaded is $44100Hz$ .

The following is a referential example used as a control to check whether sound uploads work properly. First, a sound is downloaded off the grid from the inventory at /My Inventory Sounds/lemmeout using the download command:

curl --location --request POST 'http://CORRADE_HTTP_SERVER:CORRADE_HTTP_PORT' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data-urlencode 'command=download' \
  --data-urlencode 'group=Wizardry and Steamworks' \
  --data-urlencode 'password=CORRADE_GROUP_PASSWORD' \
  --data-urlencode 'type=Sound' \
  --data-urlencode 'item=/My Inventory/Sounds/lemmeout'

where:

CORRADE_HTTP_SERVER the IP or hostname of the computer running Corrade,
CORRADE_HTTP_PORT the port that Corrade opens for HTTP commands,
CORRADE_GROUP_PASSWORD the group password for the group

resulting in the output:

command=download&time=2025-10-26T18%3A11%3A42.060396Z&data=T2dnUwACAAAAAAAAAACLpXTGAAAAAFB1DdYBHgF2b3JiaXMAAAAAARErAAAAAAAASHEAAAAAAACZAU9nZ1MAAAAAAAAAAAAAi6V0xgEAAAAUVRa2C0D%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2B1A3ZvcmJpcw0AAABMYXZmNTcuNDEuMTAwAQAAAB8AAABlbmNvZGVyPUxhdmM1Ny40OC4xMDEgbGlidm9yYmlzAQV2b3JiaXMSQkNWAQAAAQAMUhQhJRlTSmMIlVJSKQUdY1BbRx1j1DlGIWQQU4hJGaV7TyqVWErIEVJYKUUdU0xTSZVSlilFHWMUU0ghU9YxZaFzFEuGSQklbE2udBZL6JljljFGHWPOWkqdY9YxRR1jUlJJoXMYOmYlZBQ6RsXoYnwwOpWiQii%2Bx95S6S2FiluKvdcaU%2BsthBhLacEIYXPttdXcSmrFGGOMMcbF4lMogtCQVQAAAQAAQAQBQkNWAQAKAADCUAxFUYDQkFUAQAYAgAAURXEUx3EcR5IkywJCQ1YBAEAAAAIAACiO4SiSI0mSZFmWZVmWpnmWqLmqL%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%2Bq26sq6rsqy7tu2rvuyrQu76Lq2rsqurquyrOuyLeu2bNtCyfNU1TNN1%2FVM03VV17Vt1XVtWzNN1zVdV5ZF1XVl1ZV1XXVlW%2FdM03VNV5Vl01VlWZVl3XZlV5dF17VtVZZ9XXVlX5dt3fdlWdd903V1W5Vl21dlWfdlXfeFWbd93VNVWzddV9dN19V9W9d9YbZt3xddV9dV2daFVZZ139Z9ZZh1nTC6rq6rtuzrqizrvq7rxjDrujCsum38rq0Lw6vrxrHrvq7cvo9q277w6rYxvLpuHLuwG7%2Ft%2B8axqaptm66r66Yr67ps675v67pxjK6r66os%2B7rqyr5v67rw674vDKPr6roqy7qw2rKvy7ouDLuuG8Nq28Lu2rpwzLIuDLfvK8evC0PVtoXh1XWjq9vGbwvD0jd2vgAAgAEHAIAAE8pAoSErAoA4AQAGIQgVYxAqxiCEEFIKIaRUMQYhYw5KxhyUEEpJIZTSKsYgZI5JyByTEEpoqZTQSiilpVBKS6GU1lJqLabUWgyhtBRKaa2U0lpqKbbUUmwVYxAy56RkjkkopbRWSmkpc0xKxqCkDkIqpaTSSkmtZc5JyaCj0jlIqaTSUkmptVBKa6GU1kpKsaXSSm2txRpKaS2k0lpJqbXUUm2ttVojxiBkjEHJnJNSSkmplNJa5pyUDjoqmYOSSimplZJSrJiT0kEoJYOMSkmltZJKK6GU1kpKsYVSWmut1ZhSSzWUklpJqcVQSmuttRpTKzWFUFILpbQWSmmttVZrai22UEJroaQWSyoxtRZjba3FGEppraQSWympxRZbja21WFNLNZaSYmyt1dhKLTnWWmtKLdbSUoyttZhbTLnFWGsNJbQWSmmtlNJaSq3F1lqtoZTWSiqxlZJabK3V2FqMNZTSYikptZBKbK21WFtsNaaWYmyx1VhSizHGWHNLtdWUWouttVhLKzXGGGtuNeVSAADAgAMAQIAJZaDQkJUAQBQAAGAMY4xBaBRyzDkpjVLOOSclcw5CCCllzkEIIaXOOQiltNQ5B6GUlEIpKaUUWyglpdZaLAAAoMABACDABk2JxQEKDVkJAEQBACDGKMUYhMYgpRiD0BijFGMQKqUYcw5CpRRjzkHIGHPOQSkZY85BJyWEEEIppYQQQiillAIAAAocAAACbNCUWByg0JAVAUAUAABgDGIMMYYgdFI6KRGETEonpZESWgspZZZKiiXGzFqJrcTYSAmthdYyayXG0mJGrcRYYioAAOzAAQDswEIoNGQlAJAHAEAYoxRjzjlnEGLMOQghNAgx5hyEECrGnHMOQggVY845ByGEzjnnIIQQQueccxBCCKGDEEIIpZTSQQghhFJK6SCEEEIppXQQQgihlFIKAAAqcAAACLBRZHOCkaBCQ1YCAHkAAIAxSjknJaVGKcYgpBRboxRjEFJqrWIMQkqtxVgxBiGl1mLsIKTUWoy1dhBSai3GWkNKrcVYa84hpdZirDXX1FqMtebce2otxlpzzrkAANwFBwCwAxtFNicYCSo0ZCUAkAcAQCCkFGOMOYeUYowx55xDSjHGmHPOKcYYc8455xRjjDnnnHOMMeecc845xphzzjnnnHPOOeegg5A555xz0EHonHPOOQghdM455xyEEAoAACpwAAAIsFFkc4KRoEJDVgIA4QAAgDGUUkoppZRSSqijlFJKKaWUUgIhpZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoppZRSSimllFJKKaWUUkoplVJKKaWUUkoppZRSSimlACDfCgcA%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%2FE9o03G59vtjiRWGNm3uuYjfZuTp5Zfog2E1jrwGamgzyv623HyfNCQPpnS0SEOy2c4myN0lFjF5FvUXJFlkimfdiOwbioR3r930oDnh4ypr5nvgLwo5J69U6fPvt578cy2dHb1f4OozknaccubsHNZZMgRX8xvCU%2FxBz6Lau7etbXF6cwxJtHCikbmcu2zAo5jBjporwqk2XJtHSpvhgyiFhj2YL7t8fo6QSiH72Y2eWkAaKn0j298tY%2BjHdMjVZ98jzc3qz%2B9TM1nxikugsqIz%2Bn96tVGj0dCsKoFNJpenDYvb4IJENPuZcOEditCOWv2q7t7PPGuSXuyTTzur%2FiedgGqvhLlh%2BUPHUoQWoKwFf7lY3qu8Rx8%2FyVqVC4cMSaz0dypn7a6DQ6uGBOoKuD4Qll9WvcMWNR1FWsc0ocGLN7bagZHUPOd%2FJpSeLj4h9Jbjb1uwQmS2VYNXaE7ooLlu%2B%2BZqOzbAAHEwB1Aeylnz58Zd2%2BNcv%2BP7Yfc0w8fdUU5ezVbnV%2FHasYQjX9dIzRshlRL28eGE1Vazpx6PQra0bbqLZJdojz4OxEBiNkUEu%2BFfirwMDo5UEb554Y3XCecS%2FkB8DwPgCoCVAKgLz4GXmahuay1c7Ot3pjXZPrCjJ0CX67rf3XC5RPCN4o1UU7ISnrod%2FByvI0PmAiZ69j1P33Mv6NwKl2YdjfNkBp0y4kvvAjfeESTa%2BhOivJMqasAa1mLgBA7QB1gwMQcByUzivrizp7tsmGJ48WxSDMZce%2Ff75yyWf6NGtxKnqLhC5%2BfPe%2Bnj3POZ4tu%2FWxRrXZ5Tbse%2BTTH4%2BR6XgYK%2FrUj6474HA%2FLDGJKLCH4tMYxZ1H5K4GnqmE16dxrrE60MAAGgfcMzX6Pevg%2F2UuwqPB4qjVY5LfrQtkF1vNNXx5NFWzeFxMIPPW10%2Fmt2amDQAxaqz%2Fjm%2FS3rW3S2sAlSB%2B%2FhvmJmQ%2Bx4tQ5B%2F%2BjgOaqDTv7ASfFaCLUHssAHpWJKLsOtGxeq1m3S%2FHvMRp6xc%2F0lknjNaawMDzSt3AFDAw8eap%2Fr9OAjGU5%2FUtYnRij5Sg2YyE9%2B%2F%2FH8cMJUjsjN1qC6ssCVE4iI8ApmoPpU%2BQlaD%2FEAAPAFfgcAwAwPmoiwKr2%2BlM1sLO01QLIDkdGWhPbCWAGE5Ol0qOi%2BXvNpnh12QEhJ7rEwLByIoz%2F3HPVAEPGWD4MBiAjw%2BL%2BgOda5052bL7KB%2FR9%2BKRxQCi7FUplIA9D7AfjIEZFKA2QANoTY1KpFv6I0PefLu7oFjtRdD289l2Pxxat58teK1izsLq4suZScWDtJxBRgtU05TU%2BTwk8vWUowM8lk8D9mbONwwAebOsBnaXh75xFNpu7OVRA6Jsa609EOA8sUQDwwGA78d1wRXLg%2FlKG3vb9A4Q%2FEOnWmO1FxVYRRW%2F89%2BLm9TUxETZvtjSE0aJbkeq6ei33cfvJ9sHzmaQghQBseuf3%2F2EdE4TJbRLnIY5y533KZIpOrJMxKKtQSoPgD5XHYAKEAJ4JN1ovR8OXatwNtnpgdHEdnCaKNBGCs9fPwCJYbk%2FM8bXMkp1IkUeTI1W0iV5p7cP5fVYetfJXTMoh9Frq%2BeCnnz1JYvXJHdCqfs1swKabXcSPYuGzyE5HiYBX4Die3sN1AX%2FfRM2%2B5M5Ia33O5qEOzc9wKgj1Nl%2FfQQPlsnJCClJ1dWDP%2FXc4NZaJ%2BdSP%2F7%2B4oZrit%2FGPsuRYTY3izFxG31WIUIJlahiufbWCyUenqlp%2FvLgSTTovgrrAAGoG8AzW6lbBZ%2BmsdA4NyEc3V7ox79JIPYIPtozFXYVqN4ssG6rVEvd6AAChubVbjdX8vmXEd%2BRzWho1g6fc2Gs0rAo1xtQ5%2FtHRXF%2Bf3%2Bj65xxAJ6pofIyzlUIwDrgaWADp4CC3vGttm4MxvDKq621s%2BnTguokwcM1qJ3XtwOYgK9NluNfzRF9SwguKuUwBq296FHyv0ntJrwSumovUyEvHR5vFdrtiMw2HE7JkOq0V2Y8mqmU10pzoSctARkFs8HhB8b5q1c6gz73e4M%2B%2BTeGd4c%2Fpe3dSRcAQ9gfDWH9ny%2F%2FbfdSwkhc5I7zsyZwMpVHWbJd9jgCyQzNw6tvnv7%2BDrdY1Hrb6qUKFi%2B8uRYP78hZFwKWbVekl4CtKiQ1MAKgA9MCB28zLmdLrwmdv6kuYZ2nDkx8HSBYIvhNKvXcfBXaygBOgjrre6mjB2Y%2FtQCa6Vycd1MT3796zybvmGmAWq4Ghzpuqc7Mnw4YMX9LvRnFFZisFBWSrn38JVZVzQQiBaACpJm4dP%2F5hi5P3p2afvdtjsu9pGvMmWpZvLQtQ8rOrwdEQbIuFS3Z5mZ72haTKZmyxzL3yBwohzkrOZ%2FZbhZmJa0UwSlVLRz1YdbTFGwgrRJwkq0dVLOwg5ppBbDJV1b9vzRqeGitkzs8jYm9ZN1a7NAcO6HPxyPJj9FgXQa5rzBf84mi72cXHYRlkVfX%2BWWIQgKA9k6na%2Bn95YbnzfG7E0%2Fl0jL8%2BU%2F%2B7tR3AJQckgCWLAYyXPAJqADqAQeg%2F8GBp72kP143OHT6tG5vRA1aXr1r0swMO5r5sJa5Y2SXiNcF8exlJ7k6Y%2FFOz9A79JMCcVdxj6y%2B478Bh99SRgIQKG2kp30f5m0%2B19MtHavSrg6WriTroK4IwKCDc2DCg5je5uWWWXcxZ26tqR%2BJePogKndESQClUAn8pmdd31tX3eRFF08NYvxIMfO30aqBntg8N29s%2FvZVdYhh16ME1MvY6Xf0HCJHQLlfPzyPn7NNBLFqDqYNkmw19eEdAagwBhsT1LMvn6bPz7j52Nf6Sr%2BEvl2V7rjEJ5ItZEArq8eLIfzbZ8r1cK4W7y65s9sn1bVLiyGDkX7%2BPfnnF2kOyNuml7rIvMOtREN7JT4YhCkdFvO4%2B1hGsHQMlqtxIDXvzKACsDGwIabbOXShrxr29%2Bz6ntiEky1Zy%2BhwOrnz6yBtz2QvLiuLn3yR%2Fp0l2z5f4QvhS0ANWaxJCqgT%2BzR61lmBTNOHgPTRl0rWUV5kkZDbPO5gKrUtNvCF0jNyhgSWa5bElJcdAN8GpJ9%2B7efLPrdias94vF0W89K1GMfM3dES0WFHi8nDqQGRJ51x2oeYmFnv5DthcKkMYN44DfCz0eWxs3g75M66GrWMXr9fvhU1P1ZbuJ0ffvPDFOQDlqcrjQMAvjoDwH523y9WF8PZXZ1M96R71d9sd05s56bITsXcRE6jrCyXkoerPB4eHw87mCM%2B%2B9bpcuX0OnxteQW5n78U8M2pV1rcOvZmqxMufrDGzvjPZfhAUDSOYda0zNLKpSDURLWv0fj1PXVCVI%2Fc68NmMz%2FSymfmHN%2FFeOh22fzlkixduW3i%2FTyHKyL4zsi8AIN7UmpeElQjadE6VaTX%2BVIuKNnk%2FFRNeuga6u3c5mExsOumAJKhqGAcKABfrcw%2BOXK0bxw%2B%2FPD7dkynjL9VoLJEkajaNIOpJoqCXonujf2tlpzIHDWuxM%2F0Yf2vTHr6%2BqIwyc4oaCdH8QGZXgdeHEfiF7bk6NbG7cXGBFw3N5KkB2qWl4M4psoVa%2FefPV9VT%2F1Kn3ii7ef%2ForAe9JZs9GZkVkewuWcdu0fu40%2FVSknKjD3ckVz5O9vS0zAve5xdhF3H1%2Fs5O80D2%2BG4jcD98%2Fup3MWrhRiWKzbLJzTOQAgQmUCzSC8awED3d758ZuvUza1007WknS2jz%2FYN%2FW2FEhNaWCpK79vl%2Fz39s6%2FSfp38fX0yjQ4JDy1od0CNL%2BeNs7sISCPu18KiHE%2BFBrIBNTbpjGLx7KfXZEjH0ACaLXdwSwDq6hyD4QFAA6QGeJ04XWwl0pSR10nR1Ky0NUzG0Xz2V%2FNVr%2BSQWOWT36lHrC0GIJaPG4vkiYnz559%2FrqccnH3Zu%2BUfc9kZVkbPfmzaJqa9fBUwjUiLtfb29XBTyFGx7sd5FnUjE6KqlPfDolHfPQCD8YX4B2y4QgEQO3ft1%2BWRbWbOB3v3HSbfaDBSIcwFBCG0MEx86368sj1fnrR%2F8PmXdw8ZnQuNQAlVYSzt4yvLarz1z8ky4qEHTn19maeQsDwa84KxJ%2F64q9LQwvTMBLkDmmlXmR5qJCpRAAMbvSuKKlj9lD3y8Z9qvVdUFvfdzcVaKi2qUmgBzUuaJ7P1%2Fer%2B%2FYnP%2F3xf%2FPrn5%2B9X7NKsJ5WGt0PHmm39fPdkBABWh2io0D18J95yxjkI5uTz5fIwG2omTuyEunYflmc%2FpCZYajdg68XhTPj%2BbPuTy%2F80XZ968rZ2NHn%2Fa1loZKnQsTwZ6uzPwbHUy1f%2B6I%2BZNiKiyMfK2W7kbrQ5WbS3IhMavPDG6XDwdnJd7tJe4debdJ3u4XsCjIqlpp6uo%2FKJfZrntVay8QDBhgFb36A4UBUA%2Bveug%2BvWo0pqtrNr9iZqccxxLCfz6fNy7fr%2Ftr%2Bubrb%2Bm9oM6Ph8vnbYdRtY1ypMq95M8VngdIlGGi63yCTXD6fL2SzD3PZ2%2Bv3wCSJbxC4NmuQVo94qAaAAcQCXFJZOQPHT78NUtz4ju6gYxO65NvW9SlBkKaKcNPtQi0ib1FHDo9%2BXl5c9S63m3Mn6TEnH4kgtWjLc76OeZXKLMugZYWoRELvGQ3VGlRwdy9wxAdF5OyQNnqSbTYHTOdBAQHG9yZTZnZ%2B9etfl6OHfz17vdzYkWXi85PDhbQvnxrDuiVT9V9J6Q1jsmAxS5f5ykkI3Z2TYT%2F6vjfmtFv1sKc5sZPAw3dlDKY9Iq1UL0d8AiqI%2BUlkDNWNlbP66dvPf7CZ7h6cnJ81nwUms0vnNAhemuc%2Fjdl0yk5J8eWnzJGzCnQDgGAAyu6gfcxG25bKWS%2Fv%2BbgdXshPqbyn4hgkkJMC4vWQx&success=True&name=TestUpload

note that the value of the data key that is supposed to contain the file is first Base64 encoded and then application/x-www-form-urlencoded such that to be able to decode this file, one must first form-unescape the string and then decode the Base64 string. Using the Linux command line, this would be:

alias urldecode='sed "s@+@ @g;s@%@\\\\x@g" | xargs -0 printf "%b"'

followed by:

echo INPUT | urldecode | base64 -d > sound.ogg

where:

INPUT is the entire string value of the data key from the download command return.

The file that was downloaded is the following:

sound.ogg

The previous command should create the sound.ogg file that can be queried, say with ffprobe:

Input #0, ogg, from 'sound.ogg':
  Duration: 00:00:00.85, start: 0.000000, bitrate: 59 kb/s
    Stream #0:0: Audio: vorbis, 11025 Hz, mono, fltp, 29 kb/s
    Metadata:
      encoder         : Lavc57.48.101 libvorbis

Now, to perform the converse operation, encode the sound with Base64 and form-escape it in order:

curl --location --request POST 'http://CORRADE_HTTP_SERVER:CORRADE_HTTP_PORT' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'command=upload' \
--data-urlencode 'group=Wizardry and Steamworks' \
--data-urlencode 'password=...' \
--data-urlencode 'name=FILENAME' \
--data-urlencode 'type=Sound' \
--data-urlencode 'data=T2dnUwACAAAAAAAAAACLpXTGAAAAAFB1DdYBHgF2b3JiaXMAAAAAARErAAAAAAAASHEAAAAAAACZ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'

where:

CORRADE_HTTP_SERVER the IP or hostname of the computer running Corrade,
CORRADE_HTTP_PORT the port that Corrade opens for HTTP commands,
CORRADE_GROUP_PASSWORD the group password for the group,
FILENAME the name of the asset that will be created inside Corrade's inventory in-world

Note here that cURL has some nifty command line parameters like --data-urlencode that allow encoding and decode of the Base64 string.

If you wonder why the Base64 string has to be escaped, this is due to key-value pairs being used that will break in case Base64 emits equal signs which is part of its language.

2021/06/10 07:57

Encoding Assets for Upload

For example, to upload a texture, you would have to have an image encoded in one of the supported image formats. For this example, let's assume you have a JPEG2000 image. You would Base64-encode the JPEG2000 code-stream image. After that, you send the upload command to Corrade with the value of the data key set to an URL-encoded string of the Base64-encoded JPEG2000 code-stream image.

In other words:

you have an initial JPEG2000 code-stream image file.
you encode the image file as a Base64 string.
you encode the Base64 string in an URL-encoded string.

The reason for multiple levels of encoding is that Base64 uses the equal sign (=) as a padding element which interferes with key-value data syntax.

Since Base64 encoding may produce large strings, a reliable way to upload assets is to use Corrade's internal HTTP server instead of writing large strings in LSL.

Assets such as clothing, landmarks, gestures, notecards and scripts can be uploaded (created) as the reverse operation of the download command. Each of these assets are Linden-based formats which, some of them, can be reconstructed intuitively in plain-text. For example, scripts as LSLText requires the encoded data to be just a plain-text LSL script. Landmarks, clothing, gestures and notecards also have their own specific Linden-based format. If you are curious to see what that format may be, use the download command on some clothing and then Base64 decode the data returned by Corrade.

Returned Data

Under the assumption that the upload succeeded, Corrade will return a CSV list of item UUID by asset UUID (if any) that can then be used for other commands in order to refer to the asset that has been uploaded. Additionally, if the asset was a script and the script failed to compile, then the command will return the script compilation errors.

Table of Contents

Upload Assets

Supported Texture Image Formats

Supported Sound Formats

Encoding Assets for Upload

Returned Data