2009-12-24

Flash Media Server 加上 JSON 功能

1) 到 http://www.json.org/ 找 ActionScript 1 的版本
2) 修改其中 JSON.error 的部份, 存成 JSON.asc
3) 將檔案放到 /scriptlib 或 application目錄
4) 在 main.asc 裡用「load( "JSON.asc" );」

修改後的 code:
/*
Copyright (c) 2005 JSON.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The Software shall be used for Good, not Evil.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

/*
Ported to Actionscript May 2005 by Trannie Carter ,
wwww.designvox.com

Ported to Actionscript 1 May 2006 by Malte Ubl ,
http://joose-js.blogspot.com

2006-11-18: Fixed assumption that an empty string evaluates to false in boolean
context that is wrong in Flash 8 an later.

2007-04-08: Fixed bad behavior with switch statements when publishing to Flash 6 from Flash MX.
Report and Patch by Dan Wich


Updated 2007-04-08

USAGE:
var o = JSON.parse(jsonStr);
var s = JSON.stringify(obj);

// If there is an error, the method calls _root.debug("Error message...")
// Override JSON.error for the desired behaviour

*/

JSON = new Object();
// shinder.lin modified 2009-12-24
JSON.error = function(msg) {
JSON.error_occured = true;
trace(msg);
}

JSON.stringify = function (arg) {
var c, i, l, s = '', v;
JSON.error_occured = false;

switch (typeof arg) {
case 'object':
if (arg) {
if (arg instanceof Array) {
for (i = 0; i < arg.length; ++i) {
v = JSON.stringify(arg[i]);
if (s != '') {
s += ',';
}
s += v;
}
return '[' + s + ']';
} else if (typeof arg.toString != 'undefined') {
for (i in arg) {
v = arg[i];
if (typeof v != 'undefined' && typeof v != 'function') {
v = JSON.stringify(v);
if (s != '') {
s += ',';
}
s += JSON.stringify(i) + ':' + v;
}
}
return '{' + s + '}';
}
}
return 'null';
case 'number':
return isFinite(arg) ? String(arg) : 'null';
case 'string':
l = arg.length;
s = '"';
for (i = 0; i < l; i += 1) {
c = arg.charAt(i);
if (c >= ' ') {
if (c == '\\' || c == '"') {
s += '\\';
}
s += c;
} else {
switch (c) {
case '\b':
s += '\\b';
break;
case '\f':
s += '\\f';
break;
case '\n':
s += '\\n';
break;
case '\r':
s += '\\r';
break;
case '\t':
s += '\\t';
break;
default:
c = c.charCodeAt();
s += '\\u00' + Math.floor(c / 16).toString(16) +
(c % 16).toString(16);
}
}
}
return s + '"';
case 'boolean':
return String(arg);
default:
return 'null';
}
}



JSON.parse = function (text) {
var at = 0;
var ch = ' ';
JSON.error_occured = false;


function error(m) {
JSON.error("JSONError: "+m)
}

function next() {
ch = text.charAt(at);
at += 1;
return ch;
}

function white() {
while (!JSON.error_occured && ch != null) {
if (ch <= ' ') {
next();
} else if (ch == '/') {
next();
switch (ch) {
case '/':
while (!JSON.error_occured && next() != null && ch != '\n' && ch != '\r') {}
break;
case '*':
next();
while (true) {
if (ch) {
if (ch == '*') {
if (next() == '/') {
next();
break;
}
} else {
next();
}
} else {
error("Unterminated comment");
}
}
break;
default:
error("Syntax error");
}
} else {
break;
}
}
}

function str() {
var i, s = '', t, u;
var outer = false;

if (ch == '"') {
while (!JSON.error_occured && next() != null) {
if (ch == '"') {
next();
return s;
} else if (ch == '\\') {
next();
switch (ch) {
case 'b':
s += '\b';
break;
case 'f':
s += '\f';
break;
case 'n':
s += '\n';
break;
case 'r':
s += '\r';
break;
case 't':
s += '\t';
break;
case 'u':
u = 0;
for (i = 0; i < 4; i += 1) {
t = parseInt(next(), 16);
if (!isFinite(t)) {
outer = true;
break;
}
u = u * 16 + t;
}
if(outer) {
outer = false;
break;
}
s += String.fromCharCode(u);
break;
default:
s += ch;
}
} else {
s += ch;
}
}
}
error("Bad string");
}

function arr() {
var a = [];

if (ch == '[') {
next();
white();
if (ch == ']') {
next();
return a;
}
while (!JSON.error_occured && ch != null) {
a.push(value());
white();
if (ch == ']') {
next();
return a;
} else if (ch != ',') {
break;
}
next();
white();
}
}
error("Bad array");
}

function obj() {
var k, o = {};

if (ch == '{') {
next();
white();
if (ch == '}') {
next();
return o;
}
while (!JSON.error_occured && ch != null) {
k = str();
white();
if (ch != ':') {
break;
}
next();
o[k] = value();
white();
if (ch == '}') {
next();
return o;
} else if (ch != ',') {
break;
}
next();
white();
}
}
error("Bad object");
}

function num() {
var n = '', v;

if (ch == '-') {
n = '-';
next();
}
while (!JSON.error_occured && ch >= '0' && ch <= '9') {
n += ch;
next();
}
if (ch == '.') {
n += '.';
next();
while (!JSON.error_occured && ch >= '0' && ch <= '9') {
n += ch;
next();
}
}
if (ch == 'e' | ch == 'E') {
n += ch;
next();
if (ch == '-' || ch == '+') {
n += ch;
next();
}
while (!JSON.error_occured && ch >= '0' && ch <= '9') {
n += ch;
next();
}
}
v = Number(n);
if (!isFinite(v)) {
error("Bad number");
}
return v;
}

function word() {
switch (ch) {
case 't':
if (next() == 'r' && next() == 'u' &&
next() == 'e') {
next();
return true;
}
break;
case 'f':
if (next() == 'a' && next() == 'l' &&
next() == 's' && next() == 'e') {
next();
return false;
}
break;
case 'n':
if (next() == 'u' && next() == 'l' &&
next() == 'l') {
next();
return null;
}
break;
}
error("Syntax error");
}

function value() {
white();
switch (ch) {
case '{':
return obj();
case '[':
return arr();
case '"':
return str();
case '-':
return num();
default:
return ch >= '0' && ch <= '9' ? num() : word();
}
}

return value();
}

2009-12-23

Flash取得Cookie

當然還是得透過 JavaScript 才會取得, 不過可以偷懶不用寫 JavaScript:

var s:String = ExternalInterface.call("document.cookie.toString");

通常會處理一下

var cookieStr:String = ExternalInterface.call("document.cookie.toString");
var cookieObj:Object = {};
cookieStr = cookieStr.split(' ').join('');
var tmp:Array = cookieStr.split(';');
for(var i in tmp) {
var tmp2:Array = tmp[i].split('=');
cookieObj[tmp2[0]] = unescape(tmp2[1]);
}
s_txt.text = cookieObj['PHPSESSID'];

2009-08-10

Apache VirtuslHost 偵聽不同埠

環境 Apache 2.2

先在 httpd.conf 設定:

→ Listen 8080

→ Include conf/extra/httpd-vhosts.conf



接著在 conf/extra/httpd-vhosts.conf 設定:

→ NameVirtualHost localhost:8080

→ <VirtualHost localhost:8080>

→ DocumentRoot "C:/wamp/www/web8080"

→ ServerName localhost

→ ErrorLog "logs/web8080-error.log"

→ CustomLog "logs/web8080-access.log" common

→ </VirtualHost>



若要在本機上能 access 到某個 host,需要在C:\WINDOWS\SYSTEM32\DRIVERS\ETC\HOSTS 加入一筆記錄


2009-08-03

PHP 的上傳設定

PHP 的上傳設定除了修改 upload_max_filesize 外
memory_limit, max_execution_time, post_max_size 也要適當修改
通常 memory_limit > post_max_size > upload_max_filesize

另外, Apache 的上傳控制是 LimitRequestBody

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