Http的报头、消息返回码等细节一览表
Table of Contents
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1 HTTP头部
1.1 Requests Header
Header | 解释 | 示例 |
---|---|---|
Accept | 指定客户端能够接收的内容类型 | Accept: text/plain, text/html |
Accept-Charset | 浏览器可以接受的字符编码集。 | Accept-Charset: iso-8859-5 |
Accept-Encoding | 指定浏览器可以支持的web服务器返回内容压缩编码类型。 | Accept-Encoding: compress, gzip |
Accept-Language | 浏览器可接受的语言 | Accept-Language: en,zh |
Accept-Ranges | 可以请求网页实体的一个或者多个子范围字段 | Accept-Ranges: bytes |
Authorization | HTTP授权的授权证书 | Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== |
Cache-Control | 指定请求和响应遵循的缓存机制 | Cache-Control: no-cache |
Connection | 表示是否需要持久连接。(HTTP 1.1默认进行持久连接) | Connection: close |
Cookie | HTTP请求发送时,会把保存在该请求域名下的所有cookie值一起发送给web服务器。 | Cookie: $Version=1; Skin=new; |
Content-Length | 请求的内容长度 | Content-Length: 348 |
Content-Type | 请求的与实体对应的MIME信息 | Content-Type: application/x-www-form-urlencoded |
Date | 请求发送的日期和时间 | Date: Tue, 15 Nov 2010 08:12:31 GMT |
Expect | 请求的特定的服务器行为 | Expect: 100-continue |
From | 发出请求的用户的Email | From: user@email.com |
Host | 指定请求的服务器的域名和端口号 | Host: www.zcmhi.com |
If-Match | 只有请求内容与实体相匹配才有效 | If-Match: “737060cd8c284d8af7ad3082f209582d” |
If-Modified-Since | 如果请求的部分在指定时间之后被修改则请求成功,未被修改则返回304代码 | If-Modified-Since: Sat, 29 Oct 2010 19:43:31 GMT |
If-None-Match | 如果内容未改变返回304代码,参数为服务器先前发送的Etag,与服务器回应的Etag比较判断是否改变 | If-None-Match: “737060cd8c284d8af7ad3082f209582d” |
If-Range | 如果实体未改变,服务器发送客户端丢失的部分,否则发送整个实体。参数也为Etag | If-Range: “737060cd8c284d8af7ad3082f209582d” |
If-Unmodified-Since | 只在实体在指定时间之后未被修改才请求成功 | If-Unmodified-Since: Sat, 29 Oct 2010 19:43:31 GMT |
Max-Forwards | 限制信息通过代理和网关传送的时间 | Max-Forwards: 10 |
Pragma | 用来包含实现特定的指令 | Pragma: no-cache |
Proxy-Authorization | 连接到代理的授权证书 | Proxy-Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ== |
Range | 只请求实体的一部分,指定范围 | Range: bytes=500-999 |
Referer | 先前网页的地址,当前请求网页紧随其后,即来路 | Referer: http://www.zcmhi.com/archives/71.html |
TE | 客户端愿意接受的传输编码,并通知服务器接受接受尾加头信息 | TE: trailers,deflate;q=0.5 |
Upgrade | 向服务器指定某种传输协议以便服务器进行转换(如果支持) | Upgrade: HTTP/2.0, SHTTP/1.3, IRC/6.9, RTA/x11 |
User-Agent | User-Agent的内容包含发出请求的用户信息 | User-Agent: Mozilla/5.0 (Linux; X11) |
Via | 通知中间网关或代理服务器地址,通信协议 | Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1) |
Warning | 关于消息实体的警告信息 | Warn: 199 Miscellaneous warning |
1.2 Responses Header
Header | 解释 | 示例 |
---|---|---|
Accept-Ranges | 表明服务器是否支持指定范围请求及哪种类型的分段请求 | Accept-Ranges: bytes |
Age | 从原始服务器到代理缓存形成的估算时间(以秒计,非负) | Age: 12 |
Allow | 对某网络资源的有效的请求行为,不允许则返回405 | Allow: GET, HEAD |
Cache-Control | 告诉所有的缓存机制是否可以缓存及哪种类型 | Cache-Control: no-cache |
Content-Encoding | web服务器支持的返回内容压缩编码类型。 | Content-Encoding: gzip |
Content-Language | 响应体的语言 | Content-Language: en,zh |
Content-Length | 响应体的长度 | Content-Length: 348 |
Content-Location | 请求资源可替代的备用的另一地址 | Content-Location: /index.htm |
Content-MD5 | 返回资源的MD5校验值 | Content-MD5: Q2hlY2sgSW50ZWdyaXR5IQ== |
Content-Range | 在整个返回体中本部分的字节位置 | Content-Range: bytes 21010-47021/47022 |
Content-Type | 返回内容的MIME类型 | Content-Type: text/html; charset=utf-8 |
Date | 原始服务器消息发出的时间 | Date: Tue, 15 Nov 2010 08:12:31 GMT |
ETag | 请求变量的实体标签的当前值 | ETag: “737060cd8c284d8af7ad3082f209582d” |
Expires | 响应过期的日期和时间 | Expires: Thu, 01 Dec 2010 16:00:00 GMT |
Last-Modified | 请求资源的最后修改时间 | Last-Modified: Tue, 15 Nov 2010 12:45:26 GMT |
Location | 用来重定向接收方到非请求URL的位置来完成请求或标识新的资源 | Location: http://www.zcmhi.com/archives/94.html |
Pragma | 包括实现特定的指令,它可应用到响应链上的任何接收方 | Pragma: no-cache |
Proxy-Authenticate | 它指出认证方案和可应用到代理的该URL上的参数 | Proxy-Authenticate: Basic |
refresh | 应用于重定向或一个新的资源被创造,在5秒之后重定向(由网景提出,被大部分浏览器支持) | Refresh: 5; url=http://www.atool.org/httptest.php |
Retry-After | 如果实体暂时不可取,通知客户端在指定时间之后再次尝试 | Retry-After: 120 |
Server | web服务器软件名称 | Server: Apache/1.3.27 (Unix) (Red-Hat/Linux) |
Set-Cookie | 设置Http Cookie | Set-Cookie: UserID=JohnDoe; Max-Age=3600; Version=1 |
Trailer | 指出头域在分块传输编码的尾部存在 | Trailer: Max-Forwards |
Transfer-Encoding | 文件传输编码 | Transfer-Encoding:chunked |
Vary | 告诉下游代理是使用缓存响应还是从原始服务器请求 | Vary: * |
Via | 告知代理客户端响应是通过哪里发送的 | Via: 1.0 fred, 1.1 nowhere.com (Apache/1.1) |
Warning | 警告实体可能存在的问题 | Warning: 199 Miscellaneous warning |
WWW-Authenticate | 表明客户端请求实体应该使用的授权方案 | WWW-Authenticate: Basic |
X-Powered-By | 由语言解析器或者应用程序框架输出的,这个值的意义用于告知网站是用何种语言或框架编写的 | X-Powered-By: ASP.NET |
2 HTTP状态码
当浏览者访问一个网页时,浏览者的浏览器会向网页所在服务器发出请求。当浏览器接收并显示网页前,此网页所在的服务器会返回一个包含HTTP状态码的信息头(server header)用以响应浏览器的请求。HTTP状态码的英文为HTTP Status Code。
下面是常见的HTTP状态码:
- 200 - 请求成功
- 301 - 资源(网页等)被永久转移到其它URL
- 404 - 请求的资源(网页等)不存在
- 500 - 内部服务器错误
2.1 HTTP状态码分类
分类 | 分类描述 |
---|---|
1** | 信息,服务器收到请求,需要请求者继续执行操作 |
2** | 成功,操作被成功接收并处理 |
3** | 重定向,需要进一步的操作以完成请求 |
4** | 客户端错误,请求包含语法错误或无法完成请求 |
5** | 服务器错误,服务器在处理请求的过程中发生了错误 |
2.2 HTTP状态码列表
状态码 | 状态码英文名称 | 中文描述 |
---|---|---|
100 | Continue | 继续。客户端应继续其请求 |
101 | Switching Protocols | 切换协议。服务器根据客户端的请求切换协议。只能切换到更高级的协议,例如,切换到HTTP的新版本协议 |
200 | OK | 请求成功。一般用于GET与POST请求 |
201 | Created | 已创建。成功请求并创建了新的资源 |
202 | Accepted | 已接受。已经接受请求,但未处理完成 |
203 | Non-Authoritative Information | 非授权信息。请求成功。但返回的meta信息不在原始的服务器,而是一个副本 |
204 | No Content | 无内容。服务器成功处理,但未返回内容。在未更新网页的情况下,可确保浏览器继续显示当前文档 |
205 | Reset Content | 重置内容。服务器处理成功,用户终端(例如:浏览器)应重置文档视图。可通过此返回码清除浏览器的表单域 |
206 | Partial Content | 部分内容。服务器成功处理了部分GET请求 |
300 | Multiple Choices | 多种选择。请求的资源可包括多个位置,相应可返回一个资源特征与地址的列表用于用户终端(例如:浏览器)选择 |
301 | Moved Permanently | 永久移动。请求的资源已被永久的移动到新URI,返回信息会包括新的URI,浏览器会自动定向到新URI。今后任何新的请求都应使用新的URI代替 |
302 | Found | 临时移动。与301类似。但资源只是临时被移动。客户端应继续使用原有URI |
303 | See Other | 查看其它地址。与301类似。使用GET和POST请求查看 |
304 | Not Modified | 未修改。所请求的资源未修改,服务器返回此状态码时,不会返回任何资源。客户端通常会缓存访问过的资源,通过提供一个头信息指出客户端希望只返回在指定日期之后修改的资源 |
305 | Use Proxy | 使用代理。所请求的资源必须通过代理访问 |
306 | Unused | 已经被废弃的HTTP状态码 |
307 | Temporary Redirect | 临时重定向。与302类似。使用GET请求重定向 |
400 | Bad Request | 客户端请求的语法错误,服务器无法理解 |
401 | Unauthorized | 请求要求用户的身份认证 |
402 | Payment Required | 保留,将来使用 |
403 | Forbidden | 服务器理解请求客户端的请求,但是拒绝执行此请求 |
404 | Not Found | 服务器无法根据客户端的请求找到资源(网页)。通过此代码,网站设计人员可设置"您所请求的资源无法找到"的个性页面 |
405 | Method Not Allowed | 客户端请求中的方法被禁止 |
406 | Not Acceptable | 服务器无法根据客户端请求的内容特性完成请求 |
407 | Proxy Authentication Required | 请求要求代理的身份认证,与401类似,但请求者应当使用代理进行授权 |
408 | Request Time-out | 服务器等待客户端发送的请求时间过长,超时 |
409 | Conflict | 服务器完成客户端的 PUT 请求时可能返回此代码,服务器处理请求时发生了冲突 |
410 | Gone | 客户端请求的资源已经不存在。410不同于404,如果资源以前有现在被永久删除了可使用410代码,网站设计人员可通过301代码指定资源的新位置 |
411 | Length Required | 服务器无法处理客户端发送的不带Content-Length的请求信息 |
412 | Precondition Failed | 客户端请求信息的先决条件错误 |
413 | Request Entity Too Large | 由于请求的实体过大,服务器无法处理,因此拒绝请求。为防止客户端的连续请求,服务器可能会关闭连接。如果只是服务器暂时无法处理,则会包含一个Retry-After的响应信息 |
414 | Request-URI Too Large | 请求的URI过长(URI通常为网址),服务器无法处理 |
415 | Unsupported Media Type | 服务器无法处理请求附带的媒体格式 |
416 | Requested range not satisfiable | 客户端请求的范围无效 |
417 | Expectation Failed | 服务器无法满足Expect的请求头信息 |
500 | Internal Server Error | 服务器内部错误,无法完成请求 |
501 | Not Implemented | 服务器不支持请求的功能,无法完成请求 |
502 | Bad Gateway | 作为网关或者代理工作的服务器尝试执行请求时,从远程服务器接收到了一个无效的响应 |
503 | Service Unavailable | 由于超载或系统维护,服务器暂时的无法处理客户端的请求。延时的长度可包含在服务器的Retry-After头信息中 |
504 | Gateway Time-out | 充当网关或代理的服务器,未及时从远端服务器获取请求 |
505 | HTTP Version not supported | 服务器不支持请求的HTTP协议的版本,无法完成处理 |
3 HTTP content-type
Content-Type(内容类型),一般是指网页中存在的 Content-Type,用于定义网络文件的类型和网页的编码,决定浏览器将以什么形式、什么编码读取这个文件,这就是经常看到一些 PHP 网页点击的结果却是下载一个文件或一张图片的原因。Content-Type 标头告诉客户端实际返回的内容的内容类型。
语法格式如下:
Content-Type: text/html; charset=utf-8 Content-Type: multipart/form-data; boundary=something
常见的媒体格式类型如下:
text/html : HTML格式 text/plain :纯文本格式 text/xml : XML格式 image/gif :gif图片格式 image/jpeg :jpg图片格式 image/png:png图片格式
以application开头的媒体格式类型:
application/xhtml+xml :XHTML格式 application/xml: XML数据格式 application/atom+xml :Atom XML聚合格式 application/json: JSON数据格式 application/pdf:pdf格式 application/msword : Word文档格式 application/octet-stream : 二进制流数据(如常见的文件下载) application/x-www-form-urlencoded :
另外一种常见的媒体格式是上传文件之时使用的:
multipart/form-data : 需要在表单中进行文件上传时,就需要使用该格式
3.1 HTTP content-type 对照表
文件扩展名 | Content-Type(Mime-Type) 文件扩展名 | 文件扩展名 | Content-Type(Mime-Type) 文件扩展名 |
---|---|---|---|
.*( 二进制流,不知道下载文件类型) | application/octet-stream | .tif | image/tiff |
.001 | application/x-001 | .301 | application/x-301 |
.323 | text/h323 | .906 | application/x-906 |
.907 | drawing/907 | .a11 | application/x-a11 |
.acp | audio/x-mei-aac | .ai | application/postscript |
.aif | audio/aiff | .aifc | audio/aiff |
.aiff | audio/aiff | .anv | application/x-anv |
.asa | text/asa | .asf | video/x-ms-asf |
.asp | text/asp | .asx | video/x-ms-asf |
.au | audio/basic | .avi | video/avi |
.awf | application/vnd.adobe.workflow | .biz | text/xml |
.bmp | application/x-bmp | .bot | application/x-bot |
.c4t | application/x-c4t | .c90 | application/x-c90 |
.cal | application/x-cals | .cat | application/vnd.ms-pki.seccat |
.cdf | application/x-netcdf | .cdr | application/x-cdr |
.cel | application/x-cel | .cer | application/x-x509-ca-cert |
.cg4 | application/x-g4 | .cgm | application/x-cgm |
.cit | application/x-cit | .class | java/* |
.cml | text/xml | .cmp | application/x-cmp |
.cmx | application/x-cmx | .cot | application/x-cot |
.crl | application/pkix-crl | .crt | application/x-x509-ca-cert |
.csi | application/x-csi | .css | text/css |
.cut | application/x-cut | .dbf | application/x-dbf |
.dbm | application/x-dbm | .dbx | application/x-dbx |
.dcd | text/xml | .dcx | application/x-dcx |
.der | application/x-x509-ca-cert | .dgn | application/x-dgn |
.dib | application/x-dib | .dll | application/x-msdownload |
.doc | application/msword | .dot | application/msword |
.drw | application/x-drw | .dtd | text/xml |
.dwf | Model/vnd.dwf | .dwf | application/x-dwf |
.dwg | application/x-dwg | .dxb | application/x-dxb |
.dxf | application/x-dxf | .edn | application/vnd.adobe.edn |
.emf | application/x-emf | .eml | message/rfc822 |
.ent | text/xml | .epi | application/x-epi |
.eps | application/x-ps | .eps | application/postscript |
.etd | application/x-ebx | .exe | application/x-msdownload |
.fax | image/fax | .fdf | application/vnd.fdf |
.fif | application/fractals | .fo | text/xml |
.frm | application/x-frm | .g4 | application/x-g4 |
.gbr | application/x-gbr | . | application/x- |
.gif | image/gif | .gl2 | application/x-gl2 |
.gp4 | application/x-gp4 | .hgl | application/x-hgl |
.hmr | application/x-hmr | .hpg | application/x-hpgl |
.hpl | application/x-hpl | .hqx | application/mac-binhex40 |
.hrf | application/x-hrf | .hta | application/hta |
.htc | text/x-component | .htm | text/html |
.html | text/html | .htt | text/webviewhtml |
.htx | text/html | .icb | application/x-icb |
.ico | image/x-icon | .ico | application/x-ico |
.iff | application/x-iff | .ig4 | application/x-g4 |
.igs | application/x-igs | .iii | application/x-iphone |
.img | application/x-img | .ins | application/x-internet-signup |
.isp | application/x-internet-signup | .IVF | video/x-ivf |
.java | java/* | .jfif | image/jpeg |
.jpe | image/jpeg | .jpe | application/x-jpe |
.jpeg | image/jpeg | .jpg | image/jpeg |
.jpg | application/x-jpg | .js | application/x-javascript |
.jsp | text/html | .la1 | audio/x-liquid-file |
.lar | application/x-laplayer-reg | .latex | application/x-latex |
.lavs | audio/x-liquid-secure | .lbm | application/x-lbm |
.lmsff | audio/x-la-lms | .ls | application/x-javascript |
.ltr | application/x-ltr | .m1v | video/x-mpeg |
.m2v | video/x-mpeg | .m3u | audio/mpegurl |
.m4e | video/mpeg4 | .mac | application/x-mac |
.man | application/x-troff-man | .math | text/xml |
.mdb | application/msaccess | .mdb | application/x-mdb |
.mfp | application/x-shockwave-flash | .mht | message/rfc822 |
.mhtml | message/rfc822 | .mi | application/x-mi |
.mid | audio/mid | .midi | audio/mid |
.mil | application/x-mil | .mml | text/xml |
.mnd | audio/x-musicnet-download | .mns | audio/x-musicnet-stream |
.mocha | application/x-javascript | .movie | video/x-sgi-movie |
.mp1 | audio/mp1 | .mp2 | audio/mp2 |
.mp2v | video/mpeg | .mp3 | audio/mp3 |
.mp4 | video/mpeg4 | .mpa | video/x-mpg |
.mpd | application/vnd.ms-project | .mpe | video/x-mpeg |
.mpeg | video/mpg | .mpg | video/mpg |
.mpga | audio/rn-mpeg | .mpp | application/vnd.ms-project |
.mps | video/x-mpeg | .mpt | application/vnd.ms-project |
.mpv | video/mpg | .mpv2 | video/mpeg |
.mpw | application/vnd.ms-project | .mpx | application/vnd.ms-project |
.mtx | text/xml | .mxp | application/x-mmxp |
.net | image/pnetvue | .nrf | application/x-nrf |
.nws | message/rfc822 | .odc | text/x-ms-odc |
.out | application/x-out | .p10 | application/pkcs10 |
.p12 | application/x-pkcs12 | .p7b | application/x-pkcs7-certificates |
.p7c | application/pkcs7-mime | .p7m | application/pkcs7-mime |
.p7r | application/x-pkcs7-certreqresp | .p7s | application/pkcs7-signature |
.pc5 | application/x-pc5 | .pci | application/x-pci |
.pcl | application/x-pcl | .pcx | application/x-pcx |
application/pdf | application/pdf | ||
.pdx | application/vnd.adobe.pdx | .pfx | application/x-pkcs12 |
.pgl | application/x-pgl | .pic | application/x-pic |
.pko | application/vnd.ms-pki.pko | .pl | application/x-perl |
.plg | text/html | .pls | audio/scpls |
.plt | application/x-plt | .png | image/png |
.png | application/x-png | .pot | application/vnd.ms-powerpoint |
.ppa | application/vnd.ms-powerpoint | .ppm | application/x-ppm |
.pps | application/vnd.ms-powerpoint | .ppt | application/vnd.ms-powerpoint |
.ppt | application/x-ppt | .pr | application/x-pr |
.prf | application/pics-rules | .prn | application/x-prn |
.prt | application/x-prt | .ps | application/x-ps |
.ps | application/postscript | .ptn | application/x-ptn |
.pwz | application/vnd.ms-powerpoint | .r3t | text/vnd.rn-realtext3d |
.ra | audio/vnd.rn-realaudio | .ram | audio/x-pn-realaudio |
.ras | application/x-ras | .rat | application/rat-file |
.rdf | text/xml | .rec | application/vnd.rn-recording |
.red | application/x-red | .rgb | application/x-rgb |
.rjs | application/vnd.rn-realsystem-rjs | .rjt | application/vnd.rn-realsystem-rjt |
.rlc | application/x-rlc | .rle | application/x-rle |
.rm | application/vnd.rn-realmedia | .rmf | application/vnd.adobe.rmf |
.rmi | audio/mid | .rmj | application/vnd.rn-realsystem-rmj |
.rmm | audio/x-pn-realaudio | .rmp | application/vnd.rn-rn_music_package |
.rms | application/vnd.rn-realmedia-secure | .rmvb | application/vnd.rn-realmedia-vbr |
.rmx | application/vnd.rn-realsystem-rmx | .rnx | application/vnd.rn-realplayer |
.rp | image/vnd.rn-realpix | .rpm | audio/x-pn-realaudio-plugin |
.rsml | application/vnd.rn-rsml | .rt | text/vnd.rn-realtext |
.rtf | application/msword | .rtf | application/x-rtf |
.rv | video/vnd.rn-realvideo | .sam | application/x-sam |
.sat | application/x-sat | .sdp | application/sdp |
.sdw | application/x-sdw | .sit | application/x-stuffit |
.slb | application/x-slb | .sld | application/x-sld |
.slk | drawing/x-slk | .smi | application/smil |
.smil | application/smil | .smk | application/x-smk |
.snd | audio/basic | .sol | text/plain |
.sor | text/plain | .spc | application/x-pkcs7-certificates |
.spl | application/futuresplash | .spp | text/xml |
.ssm | application/streamingmedia | .sst | application/vnd.ms-pki.certstore |
.stl | application/vnd.ms-pki.stl | .stm | text/html |
.sty | application/x-sty | .svg | text/xml |
.swf | application/x-shockwave-flash | .tdf | application/x-tdf |
.tg4 | application/x-tg4 | .tga | application/x-tga |
.tif | image/tiff | .tif | application/x-tif |
.tiff | image/tiff | .tld | text/xml |
.top | drawing/x-top | .torrent | application/x-bittorrent |
.tsd | text/xml | .txt | text/plain |
.uin | application/x-icq | .uls | text/iuls |
.vcf | text/x-vcard | .vda | application/x-vda |
.vdx | application/vnd.visio | .vml | text/xml |
.vpg | application/x-vpeg005 | .vsd | application/vnd.visio |
.vsd | application/x-vsd | .vss | application/vnd.visio |
.vst | application/vnd.visio | .vst | application/x-vst |
.vsw | application/vnd.visio | .vsx | application/vnd.visio |
.vtx | application/vnd.visio | .vxml | text/xml |
.wav | audio/wav | .wax | audio/x-ms-wax |
.wb1 | application/x-wb1 | .wb2 | application/x-wb2 |
.wb3 | application/x-wb3 | .wbmp | image/vnd.wap.wbmp |
.wiz | application/msword | .wk3 | application/x-wk3 |
.wk4 | application/x-wk4 | .wkq | application/x-wkq |
.wks | application/x-wks | .wm | video/x-ms-wm |
.wma | audio/x-ms-wma | .wmd | application/x-ms-wmd |
.wmf | application/x-wmf | .wml | text/vnd.wap.wml |
.wmv | video/x-ms-wmv | .wmx | video/x-ms-wmx |
.wmz | application/x-ms-wmz | .wp6 | application/x-wp6 |
.wpd | application/x-wpd | .wpg | application/x-wpg |
.wpl | application/vnd.ms-wpl | .wq1 | application/x-wq1 |
.wr1 | application/x-wr1 | .wri | application/x-wri |
.wrk | application/x-wrk | .ws | application/x-ws |
.ws2 | application/x-ws | .wsc | text/scriptlet |
.wsdl | text/xml | .wvx | video/x-ms-wvx |
.xdp | application/vnd.adobe.xdp | .xdr | text/xml |
.xfd | application/vnd.adobe.xfd | .xfdf | application/vnd.adobe.xfdf |
.xhtml | text/html | .xls | application/vnd.ms-excel |
.xls | application/x-xls | .xlw | application/x-xlw |
.xml | text/xml | .xpl | audio/scpls |
.xq | text/xml | .xql | text/xml |
.xquery | text/xml | .xsd | text/xml |
.xsl | text/xml | .xslt | text/xml |
.xwd | application/x-xwd | .x_b | application/x-x_b |
.sis | application/vnd.symbian.install | .sisx | application/vnd.symbian.install |
.x_t | application/x-x_t | .ipa | application/vnd.iphone |
.apk | application/vnd.android.package-archive | .xap | application/x-silverlight-app |