2 // huffware script: invoke nechung, by fred huffhines.
4 // an example of invoking a web site from SL and getting the response.
6 // this script is licensed by the GPL v3 which is documented at: http://www.gnu.org/licenses/gpl.html
7 // do not use it in objects without fully realizing you are implicitly accepting that license.
10 key last_request_id; // the current request that's in progress, if any.
13 // huffware script: auto-retire, by fred huffhines, version 2.5.
14 // distributed under BSD-like license.
15 // !! keep in mind that this code must be *copied* into another
16 // !! script that you wish to add auto-retirement capability to.
17 // when a script has auto_retire in it, it can be dropped into an
18 // object and the most recent version of the script will destroy
19 // all older versions.
21 // the version numbers are embedded into the script names themselves.
22 // the notation for versions uses a letter 'v', followed by two numbers
23 // in the form "major.minor".
24 // major and minor versions are implicitly considered as a floating point
25 // number that increases with each newer version of the script. thus,
26 // "hazmap v0.1" might be the first script in the "hazmap" script continuum,
27 // and "hazmap v3.2" is a more recent version.
29 // example usage of the auto-retirement script:
32 // auto_retire(); // make sure newest addition is only version of script.
35 // this script is partly based on the self-upgrading scripts from markov brodsky
36 // and jippen faddoul.
39 string self = llGetScriptName(); // the name of this script.
40 list split = compute_basename_and_version(self);
41 if (llGetListLength(split) != 2) return; // nothing to do for this script.
42 string basename = llList2String(split, 0); // script name with no version attached.
43 string version_string = llList2String(split, 1); // the version found.
45 // find any scripts that match the basename. they are variants of this script.
46 for (posn = llGetInventoryNumber(INVENTORY_SCRIPT) - 1; posn >= 0; posn--) {
47 //log_it("invpo=" + (string)posn);
48 string curr_script = llGetInventoryName(INVENTORY_SCRIPT, posn);
49 if ( (curr_script != self) && (llSubStringIndex(curr_script, basename) == 0) ) {
50 // found a basic match at least.
51 list inv_split = compute_basename_and_version(curr_script);
52 if (llGetListLength(inv_split) == 2) {
53 // see if this script is more ancient.
54 string inv_version_string = llList2String(inv_split, 1); // the version found.
55 // must make sure that the retiring script is completely the identical basename;
56 // just matching in the front doesn't make it a relative.
57 if ( (llList2String(inv_split, 0) == basename)
58 && ((float)inv_version_string < (float)version_string) ) {
59 // remove script with same name from inventory that has inferior version.
60 llRemoveInventory(curr_script);
67 // separates the base script name and version number. used by auto_retire.
68 list compute_basename_and_version(string to_chop_up)
70 // minimum script name is 2 characters plus a version.
72 // find the last useful space and 'v' combo.
73 for (space_v_posn = llStringLength(to_chop_up) - 3;
74 (space_v_posn >= 2) && (llGetSubString(to_chop_up, space_v_posn, space_v_posn + 1) != " v");
76 // look for space and v but do nothing else.
77 //log_it("pos=" + (string)space_v_posn);
79 if (space_v_posn < 2) return []; // no space found.
80 //log_it("space v@" + (string)space_v_posn);
81 // now we zoom through the stuff after our beloved v character and find any evil
82 // space characters, which are most likely from SL having found a duplicate item
83 // name and not so helpfully renamed it for us.
85 for (indy = llStringLength(to_chop_up) - 1; indy > space_v_posn; indy--) {
86 //log_it("indy=" + (string)space_v_posn);
87 if (llGetSubString(to_chop_up, indy, indy) == " ") {
88 // found one; zap it. since we're going backwards we don't need to
89 // adjust the loop at all.
90 to_chop_up = llDeleteSubString(to_chop_up, indy, indy);
91 //log_it("saw case of previously redundant item, aieee. flattened: " + to_chop_up);
94 string full_suffix = llGetSubString(to_chop_up, space_v_posn, -1);
95 // ditch the space character for our numerical check.
96 string chop_suffix = llGetSubString(full_suffix, 1, llStringLength(full_suffix) - 1);
97 // strip out a 'v' if there is one.
98 if (llGetSubString(chop_suffix, 0, 0) == "v")
99 chop_suffix = llGetSubString(chop_suffix, 1, llStringLength(chop_suffix) - 1);
100 // if valid floating point number and greater than zero, that works for our version.
101 string basename = to_chop_up; // script name with no version attached.
102 if ((float)chop_suffix > 0.0) {
103 // this is a big success right here.
104 basename = llGetSubString(to_chop_up, 0, -llStringLength(full_suffix) - 1);
105 return [ basename, chop_suffix ];
107 // seems like we found nothing useful.
115 state_entry() { if (llSubStringIndex(llGetObjectName(), "huffotronic") < 0) state real_default; }
116 on_rez(integer parm) { state rerun; }
118 state rerun { state_entry() { state default; } }
127 touch_start(integer num_touched) {
128 last_request_id = llHTTPRequest("http://gruntose.com//cgi-bin/nechung.cgi", [HTTP_METHOD,"GET"], "");
131 http_response(key request_id, integer status, list metadata, string body)
133 llSay(0, "\n" + body);