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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | daniel-mar | 1 | // |
| 2 | // Sajax Io Backend |
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| 3 | // (C) Copyright 2005 ModernMethod, Inc. |
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| 4 | // Released under BSD license |
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| 5 | // |
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| 6 | |||
| 7 | String interpolate := method( |
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| 8 | work := self clone |
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| 9 | last_idx := 0 |
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| 10 | while (1, |
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| 11 | idx := work find("<?io", last_idx) |
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| 12 | if (idx == Nil, |
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| 13 | // no more interps.. |
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| 14 | break) |
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| 15 | idx := idx + 3 |
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| 16 | end_idx := work find("?>", idx + 1) |
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| 17 | if (end_idx == Nil, |
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| 18 | // invalid interp expression.. we're done. |
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| 19 | break) |
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| 20 | |||
| 21 | // in the case of an empty interpolated expression, |
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| 22 | // lets move on |
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| 23 | if (end_idx - idx == 1, |
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| 24 | continue) |
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| 25 | |||
| 26 | // otherwise proceed with replacement. |
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| 27 | slotName := work substring(idx+1, end_idx) |
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| 28 | find_str := "<?io" .. slotName .. "?>" |
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| 29 | // write("doString(" .. slotName .. ")") |
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| 30 | replace_str := sender doString(slotName) |
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| 31 | work := work replace(find_str, replace_str) |
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| 32 | last_idx = end_idx + 1 |
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| 33 | ) |
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| 34 | return work |
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| 35 | ) |
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| 36 | |||
| 37 | Sajax := Object clone do ( |
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| 38 | |||
| 39 | debug_mode := 0 |
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| 40 | export_list := List clone |
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| 41 | js_has_been_shown := Nil |
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| 42 | |||
| 43 | init := method( |
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| 44 | return self |
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| 45 | ) |
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| 46 | |||
| 47 | handle_client_request := method( |
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| 48 | |||
| 49 | if (my_getenv("QUERY_STRING") == Nil, |
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| 50 | return |
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| 51 | ) |
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| 52 | |||
| 53 | form := CGI clone parse |
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| 54 | if (form hasKey("rs") == Nil, |
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| 55 | return |
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| 56 | ) |
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| 57 | |||
| 58 | write("Content-type: text/html\n"); |
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| 59 | write("Expires: Mon, 26 Jul 1997 05:00:00 GMT\n"); |
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| 60 | write("Cache-Control: no-cache, must-revalidate\n"); |
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| 61 | write("Pragma: no-cache\n\n"); |
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| 62 | |||
| 63 | func_name := form at("rs") |
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| 64 | if (export_list contains(func_name) == Nil) then ( |
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| 65 | write("-:$func_name not callable\n") |
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| 66 | ) else ( |
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| 67 | write("+:") |
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| 68 | args := form at("rsargs[]") |
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| 69 | result := sender performWithArgList(func_name, args) |
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| 70 | write(result) |
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| 71 | ) |
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| 72 | exit; |
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| 73 | } |
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| 74 | |||
| 75 | show_common_js := method( |
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| 76 | |||
| 77 | if (debug_mode == 1, |
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| 78 | debugModeTrueFalse := "true", |
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| 79 | debugModeTrueFalse := "false") |
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| 80 | |||
| 81 | html := """ |
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| 82 | |||
| 83 | // remote scripting library |
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| 84 | // (c) copyright 2005 modernmethod, inc |
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| 85 | var rs_debug_mode = <?io debugModeTrueFalse ?>; |
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| 86 | |||
| 87 | function rs_debug(text) { |
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| 88 | if (rs_debug_mode) |
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| 89 | alert("RSD: " + text) |
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| 90 | } |
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| 91 | function rs_init_object() { |
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| 92 | rs_debug("rs_init_object() called..") |
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| 93 | |||
| 94 | var A; |
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| 95 | try { |
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| 96 | A=new ActiveXObject("Msxml2.XMLHTTP"); |
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| 97 | } catch (e) { |
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| 98 | try { |
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| 99 | A=new ActiveXObject("Microsoft.XMLHTTP"); |
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| 100 | } catch (oc) { |
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| 101 | A=null; |
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| 102 | } |
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| 103 | } |
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| 104 | if(!A && typeof XMLHttpRequest != "undefined") |
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| 105 | A = new XMLHttpRequest(); |
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| 106 | if (!A) |
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| 107 | rs_debug("Could not create connection object."); |
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| 108 | return A; |
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| 109 | } |
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| 110 | |||
| 111 | """ |
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| 112 | write(html interpolate) |
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| 113 | } |
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| 114 | |||
| 115 | esc := method(val, |
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| 116 | return val replace("\"", "\\\\\""); |
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| 117 | ) |
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| 118 | |||
| 119 | my_getenv := method(val, |
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| 120 | my_get := Nil |
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| 121 | if (?System) then ( |
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| 122 | my_get := System getSlot("getenv") |
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| 123 | ) else ( |
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| 124 | my_get := Object getSlot("getenv") |
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| 125 | ) |
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| 126 | return my_get(val) |
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| 127 | ) |
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| 128 | |||
| 129 | get_my_uri := method( |
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| 130 | uri := "http://www.example.com/" |
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| 131 | if (my_getenv("REQUEST_URI") != Nil) then ( |
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| 132 | uri := my_getenv("REQUEST_URI") |
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| 133 | ) else ( |
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| 134 | if (my_getenv("SCRIPT_NAME") != Nil) then ( |
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| 135 | uri := my_getenv("SCRIPT_NAME") |
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| 136 | if (my_getenv("QUERY_STRING") != Nil) then ( |
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| 137 | uri := uri .. "?" .. my_getenv("QUERY_STRING") |
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| 138 | ) |
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| 139 | ) |
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| 140 | ) |
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| 141 | return uri |
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| 142 | ) |
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| 143 | |||
| 144 | show_one := method(func_name, |
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| 145 | uri := get_my_uri |
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| 146 | func_name_encoded := CGI encodeUrlParam(func_name) |
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| 147 | if (uri contains("?") == Nil) then ( |
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| 148 | uri = uri .. "?rs=" .. func_name_encoded |
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| 149 | ) else ( |
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| 150 | uri = uri .. "&rs=" .. func_name_encoded |
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| 151 | ) |
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| 152 | |||
| 153 | html := """ |
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| 154 | // wrapper for <?io func_name ?> |
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| 155 | |||
| 156 | function x_<?io func_name ?>() { |
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| 157 | // count args; build URL |
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| 158 | var i, x, n; |
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| 159 | var url = "<?io esc(uri) ?>"; |
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| 160 | var a = x_<?io func_name ?>.arguments; |
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| 161 | for (i = 0; i < a.length-1; i++) |
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| 162 | url = url + "&rsargs[]=" + escape(a[i]); |
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| 163 | url = url + "&rsrnd=" + new Date().getTime(); |
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| 164 | x = rs_init_object(); |
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| 165 | x.open("GET", url, true); |
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| 166 | x.onreadystatechange = function() { |
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| 167 | if (x.readyState != 4) |
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| 168 | return; |
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| 169 | rs_debug("received " + x.responseText); |
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| 170 | |||
| 171 | var status; |
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| 172 | var data; |
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| 173 | status = x.responseText.charAt(0); |
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| 174 | data = x.responseText.substring(2); |
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| 175 | if (status == "-") |
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| 176 | alert("Error: " + callback_n); |
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| 177 | else |
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| 178 | a[a.length-1](data); |
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| 179 | } |
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| 180 | x.send(null); |
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| 181 | rs_debug("x_<?io func_name ?> url = " + url); |
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| 182 | rs_debug("x_<?io func_name ?> waiting.."); |
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| 183 | delete x; |
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| 184 | } |
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| 185 | """ |
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| 186 | write(html interpolate) |
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| 187 | ) |
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| 188 | |||
| 189 | export := method(func, |
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| 190 | export_list add(func) |
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| 191 | } |
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| 192 | |||
| 193 | show_javascript := method( |
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| 194 | if (js_has_been_shown == Nil, |
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| 195 | show_common_js |
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| 196 | ) |
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| 197 | export_list foreach(index, func_name, |
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| 198 | show_one(func_name) |
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| 199 | ) |
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| 200 | ) |
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| 201 | |||
| 202 | ) |
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| 203 |