diff --git a/http-message/ContentType.php b/http-message/ContentType.php
new file mode 100644
index 00000000..8ee0d2c5
--- /dev/null
+++ b/http-message/ContentType.php
@@ -0,0 +1,372 @@
+<?php
+
+namespace Http\Message;
+
+
+class ContentType
+{
+
+    const OPTION_X = 'application/x-';
+    const OPTION_OCTET_STREAM = 'application/octet-stream';
+    const OPTION_PDF = 'application/pdf';
+    const OPTION_AI = 'application/postscript';
+    const OPTION_ATOM_XML = 'application/atom+xml';
+    const OPTION_JS = 'application/ecmascript';
+    const OPTION_EDI_X12 = 'application/EDI-X12';
+    const OPTION_EDIFACT = 'application/EDIFACT';
+    const OPTION_JSON = 'application/json';
+    const OPTION_JAVASCRIPT = 'application/javascript';
+    const OPTION_OGG = 'application/ogg';
+    const OPTION_RDF = 'application/rdf+xml';
+    const OPTION_RSS_XML = 'application/rss+xml';
+    const OPTION_SOAP_XML = 'application/soap+xml';
+    const OPTION_WOFF = 'application/font-woff';
+    const OPTION_XHTML_XML = 'application/xhtml+xml';
+    const OPTION_XML = 'application/xml';
+    const OPTION_DTD = 'application/xml-dtd';
+    const OPTION_XOP_XML = 'application/xop+xml';
+    const OPTION_ZIP = 'application/zip';
+    const OPTION_GZIP = 'application/gzip';
+    const OPTION_XLS = 'application/x-xls';
+    const OPTION_001 = 'application/x-001';
+    const OPTION_301 = 'application/x-301';
+    const OPTION_906 = 'application/x-906';
+    const OPTION_A11 = 'application/x-a11';
+    const OPTION_AWF = 'application/vnd.adobe.workflow';
+    const OPTION_BMP = 'application/x-bmp';
+    const OPTION_C4T = 'application/x-c4t';
+    const OPTION_CAL = 'application/x-cals';
+    const OPTION_CDF = 'application/x-netcdf';
+    const OPTION_CEL = 'application/x-cel';
+    const OPTION_CG4 = 'application/x-g4';
+    const OPTION_CIT = 'application/x-cit';
+    const OPTION_BOT = 'application/x-bot';
+    const OPTION_C90 = 'application/x-c90';
+    const OPTION_CAT = 'application/vnd.ms-pki.seccat';
+    const OPTION_CDR = 'application/x-cdr';
+    const OPTION_CER = 'application/x-x509-ca-cert';
+    const OPTION_CGM = 'application/x-cgm';
+    const OPTION_CMX = 'application/x-cmx';
+    const OPTION_CRL = 'application/pkix-crl';
+    const OPTION_CSI = 'application/x-csi';
+    const OPTION_CUT = 'application/x-cut';
+    const OPTION_DBM = 'application/x-dbm';
+    const OPTION_CMP = 'application/x-cmp';
+    const OPTION_COT = 'application/x-cot';
+    const OPTION_CRT = 'application/x-x509-ca-cert';
+    const OPTION_DBF = 'application/x-dbf';
+    const OPTION_DBX = 'application/x-dbx';
+    const OPTION_DCX = 'application/x-dcx';
+    const OPTION_DGN = 'application/x-dgn';
+    const OPTION_DLL = 'application/x-msdownload';
+    const OPTION_DOT = 'application/msword';
+    const OPTION_DER = 'application/x-x509-ca-cert';
+    const OPTION_DIB = 'application/x-dib';
+    const OPTION_DOC = 'application/msword';
+    const OPTION_DRW = 'application/x-drw';
+    const OPTION_DWF = 'application/x-dwf';
+    const OPTION_DXB = 'application/x-dxb';
+    const OPTION_EDN = 'application/vnd.adobe.edn';
+    const OPTION_DWG = 'application/x-dwg';
+    const OPTION_DXF = 'application/x-dxf';
+    const OPTION_EMF = 'application/x-emf';
+    const OPTION_EPI = 'application/x-epi';
+    const OPTION_EPS = 'application/postscript';
+    const OPTION_EXE = 'application/x-msdownload';
+    const OPTION_FDF = 'application/vnd.fdf';
+    const OPTION_X_EPS = 'application/x-ps';
+    const OPTION_ETD = 'application/x-ebx';
+    const OPTION_FIF = 'application/fractals';
+    const OPTION_FRM = 'application/x-frm';
+    const OPTION_GBR = 'application/x-gbr';
+    const OPTION_G4 = 'application/x-g4';
+    const OPTION_GL2 = 'application/x-gl2';
+    const OPTION_HGL = 'application/x-hgl';
+    const OPTION_HPG = 'application/x-hpgl';
+    const OPTION_HQX = 'application/mac-binhex40';
+    const OPTION_HTA = 'application/hta';
+    const OPTION_GP4 = 'application/x-gp4';
+    const OPTION_HMR = 'application/x-hmr';
+    const OPTION_HPL = 'application/x-hpl';
+    const OPTION_HRF = 'application/x-hrf';
+    const OPTION_ICB = 'application/x-icb';
+    const OPTION_ICO = 'application/x-ico';
+    const OPTION_IG4 = 'application/x-g4';
+    const OPTION_III = 'application/x-iphone';
+    const OPTION_INS = 'application/x-internet-signup';
+    const OPTION_IFF = 'application/x-iff';
+    const OPTION_IGS = 'application/x-igs';
+    const OPTION_IMG = 'application/x-img';
+    const OPTION_ISP = 'application/x-internet-signup';
+    const OPTION_JPE = 'application/x-jpe';
+    const OPTION_X_JAVASCRIPT = 'application/x-javascript';
+    const OPTION_JPG = 'application/x-jpg';
+    const OPTION_LAR = 'application/x-laplayer-reg';
+    const OPTION_LATEX = 'application/x-latex';
+    const OPTION_LBM = 'application/x-lbm';
+    const OPTION_LS = 'application/x-javascript';
+    const OPTION_LTR = 'application/x-ltr';
+    const OPTION_MAN = 'application/x-troff-man';
+    const OPTION_MDB = 'application/msaccess';
+    const OPTION_MAC = 'application/x-mac';
+    const OPTION_X_MDB = 'application/x-mdb';
+    const OPTION_MFP = 'application/x-shockwave-flash';
+    const OPTION_MI = 'application/x-mi';
+    const OPTION_MIL = 'application/x-mil';
+    const OPTION_MOCHA = 'application/x-javascript';
+    const OPTION_MPD = 'application/vnd.ms-project';
+    const OPTION_MPP = 'application/vnd.ms-project';
+    const OPTION_MPT = 'application/vnd.ms-project';
+    const OPTION_MPW = 'application/vnd.ms-project';
+    const OPTION_MPX = 'application/vnd.ms-project';
+    const OPTION_MXP = 'application/x-mmxp';
+    const OPTION_NRF = 'application/x-nrf';
+    const OPTION_OUT = 'application/x-out';
+    const OPTION_P12 = 'application/x-pkcs12';
+    const OPTION_P7C = 'application/pkcs7-mime';
+    const OPTION_P7R = 'application/x-pkcs7-certreqresp';
+    const OPTION_PC5 = 'application/x-pc5';
+    const OPTION_PCL = 'application/x-pcl';
+    const OPTION_PDX = 'application/vnd.adobe.pdx';
+    const OPTION_PGL = 'application/x-pgl';
+    const OPTION_PKO = 'application/vnd.ms-pki.pko';
+    const OPTION_P10 = 'application/pkcs10';
+    const OPTION_P7B = 'application/x-pkcs7-certificates';
+    const OPTION_P7M = 'application/pkcs7-mime';
+    const OPTION_P7S = 'application/pkcs7-signature';
+    const OPTION_PCI = 'application/x-pci';
+    const OPTION_PCX = 'application/x-pcx';
+    const OPTION_PFX = 'application/x-pkcs12';
+    const OPTION_PIC = 'application/x-pic';
+    const OPTION_PL = 'application/x-perl';
+    const OPTION_PLT = 'application/x-plt';
+    const OPTION_PNG = 'application/x-png';
+    const OPTION_PPA = 'application/vnd.ms-powerpoint';
+    const OPTION_PPS = 'application/vnd.ms-powerpoint';
+    const OPTION_X_PPT = 'application/x-ppt';
+    const OPTION_PRF = 'application/pics-rules';
+    const OPTION_PRT = 'application/x-prt';
+    const OPTION_PS = 'application/postscript';
+    const OPTION_PWZ = 'application/vnd.ms-powerpoint';
+    const OPTION_RA = 'audio/vnd.rn-realaudio';
+    const OPTION_RAS = 'application/x-ras';
+    const OPTION_POT = 'application/vnd.ms-powerpoint';
+    const OPTION_PPM = 'application/x-ppm';
+    const OPTION_PPT = 'application/vnd.ms-powerpoint';
+    const OPTION_PR = 'application/x-pr';
+    const OPTION_PRN = 'application/x-prn';
+    const OPTION_X_PS = 'application/x-ps';
+    const OPTION_PTN = 'application/x-ptn';
+    const OPTION_RED = 'application/x-red';
+    const OPTION_RJS = 'application/vnd.rn-realsystem-rjs';
+    const OPTION_RLC = 'application/x-rlc';
+    const OPTION_RM = 'application/vnd.rn-realmedia';
+    const OPTION_RAT = 'application/rat-file';
+    const OPTION_REC = 'application/vnd.rn-recording';
+    const OPTION_RGB = 'application/x-rgb';
+    const OPTION_RJT = 'application/vnd.rn-realsystem-rjt';
+    const OPTION_RLE = 'application/x-rle';
+    const OPTION_RMF = 'application/vnd.adobe.rmf';
+    const OPTION_RMJ = 'application/vnd.rn-realsystem-rmj';
+    const OPTION_RMP = 'application/vnd.rn-rn_music_package';
+    const OPTION_RMVB = 'application/vnd.rn-realmedia-vbr';
+    const OPTION_RNX = 'application/vnd.rn-realplayer';
+    const OPTION_RPM = 'audio/x-pn-realaudio-plugin';
+    const OPTION_RMS = 'application/vnd.rn-realmedia-secure';
+    const OPTION_RMX = 'application/vnd.rn-realsystem-rmx';
+    const OPTION_RSML = 'application/vnd.rn-rsml';
+    const OPTION_RTF = 'application/msword';
+    const OPTION_RV = 'video/vnd.rn-realvideo';
+    const OPTION_SAT = 'application/x-sat';
+    const OPTION_SDW = 'application/x-sdw';
+    const OPTION_SLB = 'application/x-slb';
+    const OPTION_X_RTF = 'application/x-rtf';
+    const OPTION_SAM = 'application/x-sam';
+    const OPTION_SDP = 'application/sdp';
+    const OPTION_SIT = 'application/x-stuffit';
+    const OPTION_SLD = 'application/x-sld';
+    const OPTION_SMI = 'application/smil';
+    const OPTION_SMK = 'application/x-smk';
+    const OPTION_SMIL = 'application/smil';
+    const OPTION_SPC = 'application/x-pkcs7-certificates';
+    const OPTION_SPL = 'application/futuresplash';
+    const OPTION_SSM = 'application/streamingmedia';
+    const OPTION_STL = 'application/vnd.ms-pki.stl';
+    const OPTION_SST = 'application/vnd.ms-pki.certstore';
+    const OPTION_TDF = 'application/x-tdf';
+    const OPTION_TGA = 'application/x-tga';
+    const OPTION_STY = 'application/x-sty';
+    const OPTION_SWF = 'application/x-shockwave-flash';
+    const OPTION_TG4 = 'application/x-tg4';
+    const OPTION_TIF = 'application/x-tif';
+    const OPTION_VDX = 'application/vnd.visio';
+    const OPTION_VPG = 'application/x-vpeg005';
+    const OPTION_VSD = 'application/x-vsd';
+    const OPTION_VST = 'application/vnd.visio';
+    const OPTION_VSW = 'application/vnd.visio';
+    const OPTION_VTX = 'application/vnd.visio';
+    const OPTION_TORRENT = 'application/x-bittorrent';
+    const OPTION_VDA = 'application/x-vda';
+    const OPTION_VND_VISIO = 'application/vnd.visio';
+    const OPTION_VSS = 'application/vnd.visio';
+    const OPTION_X_VST = 'application/x-vst';
+    const OPTION_VSX = 'application/vnd.visio';
+    const OPTION_WB1 = 'application/x-wb1';
+    const OPTION_WB3 = 'application/x-wb3';
+    const OPTION_WIZ = 'application/msword';
+    const OPTION_WK4 = 'application/x-wk4';
+    const OPTION_WKS = 'application/x-wks';
+    const OPTION_WB2 = 'application/x-wb2';
+    const OPTION_WK3 = 'application/x-wk3';
+    const OPTION_WKQ = 'application/x-wkq';
+    const OPTION_WMF = 'application/x-wmf';
+    const OPTION_WMD = 'application/x-ms-wmd';
+    const OPTION_WP6 = 'application/x-wp6';
+    const OPTION_WPG = 'application/x-wpg';
+    const OPTION_WQ1 = 'application/x-wq1';
+    const OPTION_WRI = 'application/x-wri';
+    const OPTION_WS = 'application/x-ws';
+    const OPTION_WMZ = 'application/x-ms-wmz';
+    const OPTION_WPD = 'application/x-wpd';
+    const OPTION_WPL = 'application/vnd.ms-wpl';
+    const OPTION_WR1 = 'application/x-wr1';
+    const OPTION_WRK = 'application/x-wrk';
+    const OPTION_WS2 = 'application/x-ws';
+    const OPTION_XDP = 'application/vnd.adobe.xdp';
+    const OPTION_XFD = 'application/vnd.adobe.xfd';
+    const OPTION_XFDF = 'application/vnd.adobe.xfdf';
+    const OPTION_VND_MS_EXCEL = 'application/vnd.ms-excel';
+    const OPTION_XWD = 'application/x-xwd';
+    const OPTION_SIS = 'application/vnd.symbian.install';
+    const OPTION_X_T = 'application/x-x_t';
+    const OPTION_APK = 'application/vnd.android.package-archive';
+    const OPTION_X_B = 'application/x-x_b';
+    const OPTION_SISX = 'application/vnd.symbian.install';
+    const OPTION_IPA = 'application/vnd.iphone';
+    const OPTION_XAP = 'application/x-silverlight-app';
+    const OPTION_XLW = 'application/x-xlw';
+    const OPTION_XPL = 'audio/scpls';
+    const OPTION_ANV = 'application/x-anv';
+    const OPTION_UIN = 'application/x-icq';
+    const OPTION_323 = 'text/h323';
+    const OPTION_BIZ = 'text/xml';
+    const OPTION_CML = 'text/xml';
+    const OPTION_ASA = 'text/asa';
+    const OPTION_ASP = 'text/asp';
+    const OPTION_CSS = 'text/css';
+    const OPTION_CSV = 'text/csv';
+    const OPTION_DCD = 'text/xml';
+    const OPTION_X_DTD = 'text/xml';
+    const OPTION_ENT = 'text/xml';
+    const OPTION_FO = 'text/xml';
+    const OPTION_HTC = 'text/x-component';
+    const OPTION_HTML = 'text/html';
+    const OPTION_HTX = 'text/html';
+    const OPTION_HTM = 'text/html';
+    const OPTION_HTT = 'text/webviewhtml';
+    const OPTION_JSP = 'text/html';
+    const OPTION_MATH = 'text/xml';
+    const OPTION_MML = 'text/xml';
+    const OPTION_MTX = 'text/xml';
+    const OPTION_PLG = 'text/html';
+    const OPTION_X_RDF = 'text/xml';
+    const OPTION_RT = 'text/vnd.rn-realtext';
+    const OPTION_SOL = 'text/plain';
+    const OPTION_SPP = 'text/xml';
+    const OPTION_STM = 'text/html';
+    const OPTION_SVG = 'text/xml';
+    const OPTION_TLD = 'text/xml';
+    const OPTION_TXT = 'text/plain纯文字内容';
+    const OPTION_ULS = 'text/iuls';
+    const OPTION_VML = 'text/xml';
+    const OPTION_TSD = 'text/xml';
+    const OPTION_VCF = 'text/x-vcard';
+    const OPTION_VXML = 'text/xml';
+    const OPTION_WML = 'text/vnd.wap.wml';
+    const OPTION_WSDL = 'text/xml';
+    const OPTION_WSC = 'text/scriptlet';
+    const OPTION_XDR = 'text/xml';
+    const OPTION_XQL = 'text/xml';
+    const OPTION_XSD = 'text/xml';
+    const OPTION_XSLT = 'text/xml';
+    const OPTION_X_XML = 'text/xml';
+    const OPTION_XQ = 'text/xml';
+    const OPTION_XQUERY = 'text/xml';
+    const OPTION_XSL = 'text/xml';
+    const OPTION_XHTML = 'text/html';
+    const OPTION_ODC = 'text/x-ms-odc';
+    const OPTION_R3T = 'text/vnd.rn-realtext3d';
+    const OPTION_SOR = 'text/plain';
+    const OPTION_ACP = 'audio/x-mei-aac';
+    const OPTION_AIF = 'audio/aiff';
+    const OPTION_AIFF = 'audio/aiff';
+    const OPTION_AIFC = 'audio/aiff';
+    const OPTION_AU = 'audio/basic';
+    const OPTION_LA1 = 'audio/x-liquid-file';
+    const OPTION_LAVS = 'audio/x-liquid-secure';
+    const OPTION_LMSFF = 'audio/x-la-lms';
+    const OPTION_M3U = 'audio/mpegurl';
+    const OPTION_MIDI = 'audio/mid';
+    const OPTION_MID = 'audio/mid';
+    const OPTION_MP2 = 'audio/mp2';
+    const OPTION_MP3 = 'audio/mp3';
+    const OPTION_MP4 = 'audio/mp4';
+    const OPTION_MND = 'audio/x-musicnet-download';
+    const OPTION_MP1 = 'audio/mp1';
+    const OPTION_MNS = 'audio/x-musicnet-stream';
+    const OPTION_MPGA = 'audio/rn-mpeg';
+    const OPTION_PLS = 'audio/scpls';
+    const OPTION_RAM = 'audio/x-pn-realaudio';
+    const OPTION_RMI = 'audio/mid';
+    const OPTION_RMM = 'audio/x-pn-realaudio';
+    const OPTION_SND = 'audio/basic';
+    const OPTION_WAV = 'audio/wav';
+    const OPTION_WAX = 'audio/x-ms-wax';
+    const OPTION_WMA = 'audio/x-ms-wma';
+    const OPTION_ASF = 'video/x-ms-asf';
+    const OPTION_ASX = 'video/x-ms-asf';
+    const OPTION_AVI = 'video/avi';
+    const OPTION_IVF = 'video/x-ivf';
+    const OPTION_M1V = 'video/x-mpeg';
+    const OPTION_M2V = 'video/x-mpeg';
+    const OPTION_M4E = 'video/mpeg4';
+    const OPTION_MOVIE = 'video/x-sgi-movie';
+    const OPTION_MP2V = 'video/mpeg';
+    const OPTION_X_MP4 = 'video/mpeg4';
+    const OPTION_MPA = 'video/x-mpg';
+    const OPTION_MPE = 'video/x-mpeg';
+    const OPTION_MPG = 'video/mpg';
+    const OPTION_MPEG = 'video/mpg';
+    const OPTION_MPS = 'video/x-mpeg';
+    const OPTION_MPV = 'video/mpg';
+    const OPTION_MPV2 = 'video/mpeg';
+    const OPTION_WM = 'video/x-ms-wm';
+    const OPTION_WMV = 'video/x-ms-wmv';
+    const OPTION_WMX = 'video/x-ms-wmx';
+    const OPTION_WVX = 'video/x-ms-wvx';
+    const OPTION_TIFF = 'image/tiff';
+    const OPTION_FAX = 'image/fax';
+    const OPTION_GIF = 'image/gif';
+    const OPTION_ICON = 'image/x-icon';
+    const OPTION_JFIF = 'image/jpeg';
+    const OPTION_X_JPE = 'image/jpeg';
+    const OPTION_JPEG = 'image/jpeg';
+    const OPTION_X_JPG = 'image/jpeg';
+    const OPTION_NET = 'image/pnetvue';
+    const OPTION_X_PNG = 'image/png';
+    const OPTION_RP = 'image/vnd.rn-realpix';
+    const OPTION_X_TIF = 'image/tiff';
+    const OPTION_X_TIFF = 'image/tiff';
+    const OPTION_WBMP = 'image/vnd.wap.wbmp';
+    const OPTION_EML = 'message/rfc822';
+    const OPTION_MHT = 'message/rfc822';
+    const OPTION_MHTML = 'message/rfc822';
+    const OPTION_NWS = 'message/rfc822';
+    const OPTION_907 = 'drawing/907';
+    const OPTION_SLK = 'drawing/x-slk';
+    const OPTION_TOP = 'drawing/x-top';
+    const OPTION_CLASS = 'java/*';
+    const OPTION_JAVA = 'java/*';
+    const OPTION_X_DWF = 'Model/vnd.dwf';
+
+}