diff options
Diffstat (limited to 'library/http/http.tcl')
| -rw-r--r-- | library/http/http.tcl | 104 |
1 files changed, 59 insertions, 45 deletions
diff --git a/library/http/http.tcl b/library/http/http.tcl index d57e3ce..a6b2bfd 100644 --- a/library/http/http.tcl +++ b/library/http/http.tcl @@ -11,7 +11,7 @@ package require Tcl 8.6 # Keep this in sync with pkgIndex.tcl and with the install directories in # Makefiles -package provide http 2.8.5 +package provide http 2.8.8 namespace eval http { # Allow resourcing to not clobber existing data @@ -113,7 +113,7 @@ if {[info command http::Log] eq {}} {proc http::Log {args} {}} proc http::register {proto port command} { variable urlTypes - set urlTypes($proto) [list $port $command] + set urlTypes([string tolower $proto]) [list $port $command] } # http::unregister -- @@ -127,11 +127,12 @@ proc http::register {proto port command} { proc http::unregister {proto} { variable urlTypes - if {![info exists urlTypes($proto)]} { + set lower [string tolower $proto] + if {![info exists urlTypes($lower)]} { return -code error "unsupported url type \"$proto\"" } - set old $urlTypes($proto) - unset urlTypes($proto) + set old $urlTypes($lower) + unset urlTypes($lower) return $old } @@ -394,13 +395,16 @@ proc http::geturl {url args} { # First, before the colon, is the protocol scheme (e.g. http) # Second, for HTTP-like protocols, is the authority # The authority is preceded by // and lasts up to (but not including) - # the following / and it identifies up to four parts, of which only one, - # the host, is required (if an authority is present at all). All other - # parts of the authority (user name, password, port number) are optional. + # the following / or ? and it identifies up to four parts, of which + # only one, the host, is required (if an authority is present at all). + # All other parts of the authority (user name, password, port number) + # are optional. # Third is the resource name, which is split into two parts at a ? # The first part (from the single "/" up to "?") is the path, and the # second part (from that "?" up to "#") is the query. *HOWEVER*, we do # not need to separate them; we send the whole lot to the server. + # Both, path and query are allowed to be missing, including their + # delimiting character. # Fourth is the fragment identifier, which is everything after the first # "#" in the URL. The fragment identifier MUST NOT be sent to the server # and indeed, we don't bother to validate it (it could be an error to @@ -437,7 +441,7 @@ proc http::geturl {url args} { ) (?: : (\d+) )? # <port part of authority> )? - ( / [^\#]*)? # <path> (including query) + ( [/\?] [^\#]*)? # <path> (including query) (?: \# (.*) )? # <fragment> $ } @@ -481,6 +485,12 @@ proc http::geturl {url args} { } } if {$srvurl ne ""} { + # RFC 3986 allows empty paths (not even a /), but servers + # return 400 if the path in the HTTP request doesn't start + # with / , so add it here if needed. + if {[string index $srvurl 0] ne "/"} { + set srvurl /$srvurl + } # Check for validity according to RFC 3986, Appendix A set validityRE {(?xi) ^ @@ -505,12 +515,13 @@ proc http::geturl {url args} { if {$proto eq ""} { set proto http } - if {![info exists urlTypes($proto)]} { + set lower [string tolower $proto] + if {![info exists urlTypes($lower)]} { unset $token return -code error "Unsupported URL type \"$proto\"" } - set defport [lindex $urlTypes($proto) 0] - set defcmd [lindex $urlTypes($proto) 1] + set defport [lindex $urlTypes($lower) 0] + set defcmd [lindex $urlTypes($lower) 1] if {$port eq ""} { set port $defport @@ -537,11 +548,10 @@ proc http::geturl {url args} { # If a timeout is specified we set up the after event and arrange for an # asynchronous socket connection. - set sockopts [list] + set sockopts [list -async] if {$state(-timeout) > 0} { set state(after) [after $state(-timeout) \ [list http::reset $token timeout]] - lappend sockopts -async } # If we are using the proxy, we must pass in the full URL that includes @@ -597,10 +607,15 @@ proc http::geturl {url args} { set socketmap($state(socketinfo)) $sock } - # Wait for the connection to complete. + if {![info exists phost]} { + set phost "" + } + fileevent $sock writable [list http::Connect $token $proto $phost $srvurl] - if {$state(-timeout) > 0} { - fileevent $sock writable [list http::Connect $token] + # Wait for the connection to complete. + if {![info exists state(-command)]} { + # geturl does EVERYTHING asynchronously, so if the user + # calls it synchronously, we just do a wait here. http::wait $token if {![info exists state]} { @@ -616,13 +631,30 @@ proc http::geturl {url args} { set err [lindex $state(error) 0] cleanup $token return -code error $err - } elseif {$state(status) ne "connect"} { - # Likely to be connection timeout - return $token } - set state(status) "" } + return $token +} + + +proc http::Connected { token proto phost srvurl} { + variable http + variable urlTypes + + variable $token + upvar 0 $token state + + # Set back the variables needed here + set sock $state(sock) + set isQueryChannel [info exists state(-querychannel)] + set isQuery [info exists state(-query)] + set host [lindex [split $state(socketinfo) :] 0] + set port [lindex [split $state(socketinfo) :] 1] + + set lower [string tolower $proto] + set defport [lindex $urlTypes($lower) 0] + # Send data in cr-lf format, but accept any line terminators fconfigure $sock -translation {auto crlf} -buffersize $state(-blocksize) @@ -753,35 +785,17 @@ proc http::geturl {url args} { fileevent $sock readable [list http::Event $sock $token] } - if {![info exists state(-command)]} { - # geturl does EVERYTHING asynchronously, so if the user calls it - # synchronously, we just do a wait here. - - wait $token - if {$state(status) eq "error"} { - # Something went wrong, so throw the exception, and the - # enclosing catch will do cleanup. - return -code error [lindex $state(error) 0] - } - } } err]} { # The socket probably was never connected, or the connection dropped # later. - # Clean up after events and such, but DON'T call the command callback - # (if available) because we're going to throw an exception from here - # instead. - # if state(status) is error, it means someone's already called Finish # to do the above-described clean up. if {$state(status) ne "error"} { - Finish $token $err 1 + Finish $token $err } - cleanup $token - return -code error $err } - return $token } # Data access functions: @@ -865,7 +879,7 @@ proc http::cleanup {token} { # Sets the status of the connection, which unblocks # the waiting geturl call -proc http::Connect {token} { +proc http::Connect {token proto phost srvurl} { variable $token upvar 0 $token state set err "due to unexpected EOF" @@ -873,10 +887,10 @@ proc http::Connect {token} { [eof $state(sock)] || [set err [fconfigure $state(sock) -error]] ne "" } { - Finish $token "connect failed $err" 1 + Finish $token "connect failed $err" } else { - set state(status) connect fileevent $state(sock) writable {} + ::http::Connected $token $proto $phost $srvurl } return } @@ -981,7 +995,7 @@ proc http::Event {sock token} { } elseif {$n == 0} { # We have now read all headers # We ignore HTTP/1.1 100 Continue returns. RFC2616 sec 8.2.3 - if {$state(http) == "" || [lindex $state(http) 1] == 100} { + if {$state(http) == "" || ([regexp {^\S+\s(\d+)} $state(http) {} x] && $x == 100)} { return } @@ -1379,7 +1393,7 @@ proc http::mapReply {string} { } set converted [string map $formMap $string] if {[string match "*\[\u0100-\uffff\]*" $converted]} { - regexp {[\u0100-\uffff]} $converted badChar + regexp "\[\u0100-\uffff\]" $converted badChar # Return this error message for maximum compatability... :^/ return -code error \ "can't read \"formMap($badChar)\": no such element in array" |