Re: browsehost in new version
"josephversaceca" <[email protected]> Wed, 09 Jun 2010 02:35:37 -0000
| Newsgroups | gmane.network.gnutella.devel |
|---|---|
| Message-ID | <[email protected]> |
--JDLjXljdNV10bIVyTf5lvlLazty7tahNVUZurLv Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Thanks Raphael, I have read more and believe I am coming to grasp push requests. Could you = explain to me or give me an example of the message that I would send to the= proxy to request a push? Also can I just send the push request or do I hav= e to begin with the GNUTELLA CONNECT/0.6 first? --- In [email protected], Raphael_Manfredi@... wrote: > > Quoting josephversaceca <josephversaceca@...> from ml.gnutella.dev-forum: > : > :I have read about push-proxies, the message protocol to recieve a file f= rom a > :firewalled peer (after the gnutella header) seems to be: > : > :Byte Pos Name Notes=20 > :23 - 38 ClientID128 The ClientID128 GUID of the server the client wishes= the push from.=20 > :39 - 42 File Index Index of file requested. See query_response_rec for m= ore info=20 > :43 - 46 Requester IP IP Address of the host requesting the push. Network= byte order=20 > :47 - 48 Requester Port Port number of the host requesting the push.=20 > : > : > :What I am wondering is, is this the same request for a browse? What shou= ld I use > :for the file index? >=20 > Woa here! >=20 > You're confusing things and this may be a sign you do not grasp fully > how things work or how Gnutella is architected. >=20 > For instance, there is no such thing as a Gnutella header to receive a > file from a firewalled peer! >=20 > Instead, there is a special protocol called "push" that is handled > at the Gnutella level so that firewalled servents may initiate the > connection to an unfirewalled servent. Once the connection is initiated > through this protocol, it does not matter any more how the connection > was created but the downloader can sent HTTP requests to the uploader > (the firewalled servent). >=20 > When a PUSH is received (either through Gnutella routing or via a > push-proxy precisely), a servent will initiate the connection to the > host as specified in the PUSH message (which is a Gnutella message). >=20 > When making the connection, and to signal to the remote Gnutella > servent that this is an answer to a PUSH, the firewalled servent sends > the following string: >=20 > GIV index:GUID/file >=20 > where "index" comes from an older design where files were indexed > by numbers. Since nowadays files are identified by their urn:sha1, > it is no longer useful and in this particular context it is completely > useless anyway. Send "0" (zero, ASCII code 0x30). >=20 > "GUID" is the GUID of the firewalled servent (the one initiating the > connection). For instance, the string "e64c33394f9f8405b398e923b9cd7a00"= . >=20 > "file" used to be the file name corresponding to the file mentionned > in the PUSH message, but again this is an old design. Just send "file" > as a verbatim string. >=20 > So for instance a valid GIV string would be: >=20 > GIV 0:e64c33394f9f8405b398e923b9cd7a00/file >=20 > The string must end with "\n\n", that is two new-line characters (code 0x= a > in ASCII). >=20 > The recipient needs simply to extract the GUID of the servent from the > GIV string and see whether it has some files to request from this servent= . > If it has, it can just request it through HTTP. And that can be ANY file= . > If it has nothing, it simply ignores the connection by closing it. >=20 > That's all there is to PUSH processing, really. There is no byte positio= n > to consider in the GIV string, it has to be parsed as an ASCII string. >=20 > Routing of PUSH messages, the format of the PUSH message itself can be th= e > subject of other postings if there is a need. >=20 > Raphael > --JDLjXljdNV10bIVyTf5lvlLazty7tahNVUZurLv Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> </head> <body style="background-color: #fff;"> <span style="display:none"> </span> <!--~-|**|PrettyHtmlStartT|**|-~--> <div id="ygrp-mlmsg" style="position:relative;"> <div id="ygrp-msg" style="z-index: 1;"> <!--~-|**|PrettyHtmlEndT|**|-~--> <div id="ygrp-text" > <p><br> Thanks Raphael,<br> <br> I have read more and believe I am coming to grasp push requests. Could you explain to me or give me an example of the message that I would send to the proxy to request a push? Also can I just send the push request or do I have to begin with the GNUTELLA CONNECT/0.6 first?<br> <br> --- In <a href="mailto:the_gdf%40yahoogroups.com">[email protected]</a>, Raphael_Manfredi@... wrote:<br> ><br> > Quoting josephversaceca <josephversaceca@...> from ml.gnutella.dev-forum:<br> > :<br> > :I have read about push-proxies, the message protocol to recieve a file from a<br> > :firewalled peer (after the gnutella header) seems to be:<br> > :<br> > :Byte Pos Name Notes <br> > :23 - 38 ClientID128 The ClientID128 GUID of the server the client wishes the push from. <br> > :39 - 42 File Index Index of file requested. See query_response_rec for more info <br> > :43 - 46 Requester IP IP Address of the host requesting the push. Network byte order <br> > :47 - 48 Requester Port Port number of the host requesting the push. <br> > :<br> > :<br> > :What I am wondering is, is this the same request for a browse? What should I use<br> > :for the file index?<br> > <br> > Woa here!<br> > <br> > You're confusing things and this may be a sign you do not grasp fully<br> > how things work or how Gnutella is architected.<br> > <br> > For instance, there is no such thing as a Gnutella header to receive a<br> > file from a firewalled peer!<br> > <br> > Instead, there is a special protocol called "push" that is handled<br> > at the Gnutella level so that firewalled servents may initiate the<br> > connection to an unfirewalled servent. Once the connection is initiated<br> > through this protocol, it does not matter any more how the connection<br> > was created but the downloader can sent HTTP requests to the uploader<br> > (the firewalled servent).<br> > <br> > When a PUSH is received (either through Gnutella routing or via a<br> > push-proxy precisely), a servent will initiate the connection to the<br> > host as specified in the PUSH message (which is a Gnutella message).<br> > <br> > When making the connection, and to signal to the remote Gnutella<br> > servent that this is an answer to a PUSH, the firewalled servent sends<br> > the following string:<br> > <br> > GIV index:GUID/file<br> > <br> > where "index" comes from an older design where files were indexed<br> > by numbers. Since nowadays files are identified by their urn:sha1,<br> > it is no longer useful and in this particular context it is completely<br> > useless anyway. Send "0" (zero, ASCII code 0x30).<br> > <br> > "GUID" is the GUID of the firewalled servent (the one initiating the<br> > connection). For instance, the string "e64c33394f9f8405b398e923b9cd7a00".<br> > <br> > "file" used to be the file name corresponding to the file mentionned<br> > in the PUSH message, but again this is an old design. Just send "file"<br> > as a verbatim string.<br> > <br> > So for instance a valid GIV string would be:<br> > <br> > GIV 0:e64c33394f9f8405b398e923b9cd7a00/file<br> > <br> > The string must end with "\n\n", that is two new-line characters (code 0xa<br> > in ASCII).<br> > <br> > The recipient needs simply to extract the GUID of the servent from the<br> > GIV string and see whether it has some files to request from this servent.<br> > If it has, it can just request it through HTTP. And that can be ANY file.<br> > If it has nothing, it simply ignores the connection by closing it.<br> > <br> > That's all there is to PUSH processing, really. There is no byte position<br> > to consider in the GIV string, it has to be parsed as an ASCII string.<br> > <br> > Routing of PUSH messages, the format of the PUSH message itself can be the<br> > subject of other postings if there is a need.<br> > <br> > Raphael<br> ><br> <br> </p> </div> <!--~-|**|PrettyHtmlStart|**|-~--> <div style="color: #fff; height: 0;">__._,_.___</div> <div id="ygrp-actbar" style="clear: both; margin-bottom: 10px; white-space: nowrap; color: #666; padding-top: 15px;"> <div> <a href="mailto:[email protected]?subject=Re: browsehost in new version" style="margin-right: 0; padding-right: 0;"> Reply to <span style="font-weight: 700;">sender</span></a> | <a href="mailto:[email protected]?subject=Re: browsehost in new version"> Reply to <span style="font-weight: 700;">group</span></a> | <a href="http://groups.yahoo.com/group/the_gdf/post;_ylc=X3oDMTJxYjBxMnA4BF9TAzk3MzU5NzE0BGdycElkAzI2ODQyNTMEZ3Jwc3BJZAMxNzA1MDE2MDYxBG1zZ0lkAzIzNzQyBHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTI3NjA1NzQzOQ--?act=reply&messageNum=23742">Reply <span style="font-weight: 700;">via web post</span></a> | <a href="http://groups.yahoo.com/group/the_gdf/post;_ylc=X3oDMTJlNzhxZmlsBF9TAzk3MzU5NzE0BGdycElkAzI2ODQyNTMEZ3Jwc3BJZAMxNzA1MDE2MDYxBHNlYwNmdHIEc2xrA250cGMEc3RpbWUDMTI3NjA1NzQzOQ--" style="font-weight: 700;">Start a New Topic</a> </div> <a href="http://groups.yahoo.com/group/the_gdf/message/23723;_ylc=X3oDMTM2aDkwYTRuBF9TAzk3MzU5NzE0BGdycElkAzI2ODQyNTMEZ3Jwc3BJZAMxNzA1MDE2MDYxBG1zZ0lkAzIzNzQyBHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTI3NjA1NzQzOQR0cGNJZAMyMzcyMw--">Messages in this topic</a> (<span style="font-weight: 700;">5</span>) </div> <!------- Start Nav Bar ------> <!-- |**|begin egp html banner|**| --> <div id="ygrp-vital" style="background-color: #e0ecee; font-family: Verdana; font-size: 10px; margin-bottom: 10px; padding: 10px;"> <span id="vithd" style="font-weight: bold; color: #333; text-transform: uppercase; ">Recent Activity:</span> <ul style="list-style-type: none; margin: 0; padding: 0; display: inline;"> <li style="border-right: 1px solid #000; font-weight: 700; display: inline; padding: 0 5px; margin-left: 0;"> <span class="cat"><a href="http://groups.yahoo.com/group/the_gdf/members;_ylc=X3oDMTJmczE5bzduBF9TAzk3MzU5NzE0BGdycElkAzI2ODQyNTMEZ3Jwc3BJZAMxNzA1MDE2MDYxBHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzEyNzYwNTc0Mzk-?o=6" style="text-decoration: none;">New Members</a></span> <span class="ct" style="color: #ff7900;">1</span> </li> </ul> <div style="clear: both; padding-top: 2px; color: #1e66ae;"> <a href="http://groups.yahoo.com/group/the_gdf;_ylc=X3oDMTJlaTlzdG5nBF9TAzk3MzU5NzE0BGdycElkAzI2ODQyNTMEZ3Jwc3BJZAMxNzA1MDE2MDYxBHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTI3NjA1NzQzOQ--" style="text-decoration: none;">Visit Your Group</a> </div> </div> <div id="ygrp-mkp" style="border: 1px solid #d8d8d8; clear: both; float: left; font-family: Arial; margin: 5px 0 10px 0; padding: 0 10px;"> <div id="hd" style="color: #628c2a; font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0;">MARKETPLACE</div> <div id="ads" style="margin-bottom: 10px;"> <div class="ad" style="color: #628C2A; font-family: Arial; font-weight: 700; padding: 0 0;"> <p><a href="http://us.ard.yahoo.com/SIG=15o4ihka4/M=493064.13983314.14041046.13298430/D=groups/S=1705016061:MKP1/Y=YAHOO/EXP=1276064640/L=d3c2f1f4-737e-11df-b4b7-679108f96f43/B=heP1FkPDhEc-/J=1276057440037826/K=O1VoN_T9xCRBgHlUt9YmDg/A=6060255/R=0/SIG=1194m4keh/*http://us.toolbar.yahoo.com/?.cpdl=grpj">Stay on top of your group activity without leaving the page you're on - Get the Yahoo! 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} #ygrp-mlmsg #logo { padding-bottom: 10px; } #ygrp-mlmsg a { color: #1E66AE; } #ygrp-msg p a { font-family: Verdana; } #ygrp-msg p#attach-count span { color: #1E66AE; font-weight: 700; } #ygrp-reco #reco-head { color: #ff7900; font-weight: 700; } #ygrp-reco { margin-bottom: 20px; padding: 0px; } #ygrp-sponsor #ov li a { font-size: 130%; text-decoration: none; } #ygrp-sponsor #ov li { font-size: 77%; list-style-type: square; padding: 6px 0; } #ygrp-sponsor #ov ul { margin: 0; padding: 0 0 0 8px; } #ygrp-text { font-family: Georgia; } #ygrp-text p { margin: 0 0 1em 0; } #ygrp-text tt { font-size: 120%; } #ygrp-vital ul li:last-child { border-right: none !important; } --> </style> </head> <!--~-|**|PrettyHtmlEnd|**|-~--> </html> <!-- end group email --> --JDLjXljdNV10bIVyTf5lvlLazty7tahNVUZurLv--