3 files changed, 22 insertions, 14 deletions

diff --git a/src/http.lua b/src/http.lua
index 558f347..9d739a4 100644
--- a/src/http.lua
+++ b/src/http.lua
@@ -107,7 +107,7 @@ local metat = { __index = {} }
 
 function open(host, port, create)
     -- create socket with user connect function, or with default
-    local c = socket.try(create or socket.tcp)()
+    local c = socket.try((create or socket.tcp)())
     local h = base.setmetatable({ c = c }, metat)
     -- create finalized try
     h.try = socket.newtry(function() h:close() end)
@@ -228,7 +228,8 @@ local function adjustrequest(reqt)
     -- explicit components override url
     for i,v in base.pairs(reqt) do nreqt[i] = v end
     if nreqt.port == "" then nreqt.port = 80 end
-    socket.try(nreqt.host, "invalid host '" .. base.tostring(nreqt.host) .. "'")
+    socket.try(nreqt.host and nreqt.host ~= "", 
+        "invalid host '" .. base.tostring(nreqt.host) .. "'")
     -- compute uri if user hasn't overriden
     nreqt.uri = reqt.uri or adjusturi(nreqt)
     -- ajust host and port if there is a proxy
diff --git a/src/makefile b/src/makefile
index a21a346..b614f77 100644
--- a/src/makefile
+++ b/src/makefile
@@ -11,8 +11,9 @@ include ../config
 # Modules belonging to socket-core
 #
 
+#$(COMPAT)/compat-5.1.o \
+
 SOCKET_OBJS:= \
-        $(COMPAT)/compat-5.1.o \
         luasocket.o \
         timeout.o \
         buffer.o \
@@ -29,11 +30,11 @@ SOCKET_OBJS:= \
 #------
 # Modules belonging mime-core
 #
+#$(COMPAT)/compat-5.1.o \
+
 MIME_OBJS:=\
-        $(COMPAT)/compat-5.1.o \
         mime.o 
 
-
 #------
 # Modules belonging unix (local domain sockets)
 #
diff --git a/src/smtp.lua b/src/smtp.lua
index 2257a69..9a204d8 100644
--- a/src/smtp.lua
+++ b/src/smtp.lua
@@ -122,6 +122,15 @@ function open(server, port, create)
     return s
 end
 
+-- convert headers to lowercase
+local function lower_headers(headers)
+    local lower = {}
+    for i,v in base.pairs(headers or lower) do
+        lower[string.lower(i)] = v
+    end
+    return lower
+end
+
 ---------------------------------------------------------------------------
 -- Multipart message source
 -----------------------------------------------------------------------------
@@ -149,7 +158,7 @@ end
 local function send_multipart(mesgt)
     -- make sure we have our boundary and send headers
     local bd = newboundary()
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or 'multipart/mixed'
     headers['content-type'] = headers['content-type'] ..
         '; boundary="' ..  bd .. '"'
@@ -176,7 +185,7 @@ end
 -- yield message body from a source
 local function send_source(mesgt)
     -- make sure we have a content-type
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or
         'text/plain; charset="iso-8859-1"'
     send_headers(headers)
@@ -192,7 +201,7 @@ end
 -- yield message body from a string
 local function send_string(mesgt)
     -- make sure we have a content-type
-    local headers = mesgt.headers or {}
+    local headers = lower_headers(mesgt.headers or {})
     headers['content-type'] = headers['content-type'] or
         'text/plain; charset="iso-8859-1"'
     send_headers(headers)
@@ -209,20 +218,17 @@ end
 
 -- set defaul headers
 local function adjust_headers(mesgt)
-    local lower = {}
-    for i,v in base.pairs(mesgt.headers or lower) do
-        lower[string.lower(i)] = v
-    end
+    local lower = lower_headers(mesgt.headers)
     lower["date"] = lower["date"] or
         os.date("!%a, %d %b %Y %H:%M:%S ") .. (mesgt.zone or ZONE)
     lower["x-mailer"] = lower["x-mailer"] or socket._VERSION
     -- this can't be overriden
     lower["mime-version"] = "1.0"
-    mesgt.headers = lower
+    return lower
 end
 
 function message(mesgt)
-    adjust_headers(mesgt)
+    mesgt.headers = adjust_headers(mesgt)
     -- create and return message source
     local co = coroutine.create(function() send_message(mesgt) end)
     return function()