Song Ma provided a patch that cures a problem libcurl has when doing resume

HTTP PUT using Digest authentication. Test case 5320 and 5322 were also
added to verify the functionality.

CHANGES

@@ -6,6 +6,11 @@
 
                                   Changelog
 
+Daniel S (17 August 2007)
+- Song Ma provided a patch that cures a problem libcurl has when doing resume
+  HTTP PUT using Digest authentication. Test case 5320 and 5322 were also
+  added to verify the functionality.
+
 Daniel S (14 August 2007)
 - Andrew Wansink provided an NTLM bugfix: in the case the server sets the flag
   NTLMFLAG_NEGOTIATE_UNICODE, we need to filter it off because libcurl doesn't

RELEASE-NOTES

@@ -40,6 +40,7 @@ This release includes the following bugfixes:
    "clean"
  o memory leak when handling compressed data streams from broken servers
  o no NTLM unicode response
+ o resume HTTP PUT using Digest authentication
 
 This release includes the following known bugs:
 

lib/http.c

@@ -1993,7 +1993,7 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
        data->reqdata.resume_from = 0;
     }
 
-    if(data->reqdata.resume_from) {
+    if(data->reqdata.resume_from && !data->state.this_is_a_follow) {
       /* do we still game? */
       curl_off_t passed=0;
 
@@ -2049,6 +2049,10 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
     else if((httpreq != HTTPREQ_GET) &&
             !checkheaders(data, "Content-Range:")) {
 
+      /* if a line like this was already allocated, free the previous one */
+      if(conn->allocptr.rangeline)
+        free(conn->allocptr.rangeline);
+
       if(data->reqdata.resume_from) {
         /* This is because "resume" was selected */
         curl_off_t total_expected_size=
@@ -2066,6 +2070,8 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
             aprintf("Content-Range: bytes %s/%" FORMAT_OFF_T "\r\n",
                     data->reqdata.range, data->set.infilesize);
       }
+      if(!conn->allocptr.rangeline)
+        return CURLE_OUT_OF_MEMORY;
     }
   }
 
@@ -2185,11 +2191,11 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
     if(data->set.timecondition) {
       struct tm *tm;
 
-      /* Phil Karn (Fri, 13 Apr 2001) pointed out that the If-Modified-Since
+      /* The If-Modified-Since header family should have their times set in
-       * header family should have their times set in GMT as RFC2616 defines:
+       * GMT as RFC2616 defines: "All HTTP date/time stamps MUST be
-       * "All HTTP date/time stamps MUST be represented in Greenwich Mean Time
+       * represented in Greenwich Mean Time (GMT), without exception. For the
-       * (GMT), without exception. For the purposes of HTTP, GMT is exactly
+       * purposes of HTTP, GMT is exactly equal to UTC (Coordinated Universal
-       * equal to UTC (Coordinated Universal Time)." (see page 20 of RFC2616).
+       * Time)." (see page 20 of RFC2616).
        */
 
 #ifdef HAVE_GMTIME_R

tests/data/Makefile.am

@@ -43,4 +43,4 @@ EXTRA_DIST = test1 test108 test117 test127 test20 test27 test34 test46	   \
  test296 test297 test298 test610 test611 test612 test406 test407 test408   \
  test409 test613 test614 test700 test701 test702 test704 test705 test703   \
  test706 test707 test350 test351 test352 test353 test289 test540 test354   \
- test231
+ test231 test5320 test5322

tests/data/test5320

@@ -0,0 +1,94 @@
+<testcase>
+# Server-side
+<reply>
+<data>
+HTTP/1.1 100 Continue
+Server: Microsoft-IIS/5.0
+Date: Sun, 03 Apr 2005 14:57:45 GMT
+X-Powered-By: ASP.NET
+
+HTTP/1.1 401 authentication please swsbounce
+Server: Microsoft-IIS/6.0
+WWW-Authenticate: Digest realm="testrealm", nonce="1053604144"
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 0
+
+</data>
+<data1000>
+HTTP/1.1 200 A OK
+Server: Microsoft-IIS/6.0
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 3
+
+ok
+</data1000>
+
+<datacheck>
+HTTP/1.1 100 Continue
+Server: Microsoft-IIS/5.0
+Date: Sun, 03 Apr 2005 14:57:45 GMT
+X-Powered-By: ASP.NET
+
+HTTP/1.1 401 authentication please swsbounce
+Server: Microsoft-IIS/6.0
+WWW-Authenticate: Digest realm="testrealm", nonce="1053604144"
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 0
+
+HTTP/1.1 200 A OK
+Server: Microsoft-IIS/6.0
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 3
+
+ok
+</datacheck>
+
+</reply>
+
+# Client-side
+<client>
+# 
+<server>
+http
+</server>
+ <name>
+HTTP POST --digest with PUT and resumed upload and modified method
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/5320 -u auser:apasswd --digest -T log/5320 -x  http://%HOSTIP:%HTTPPORT -C 2 -X GET
+</command>
+<file name="log/5320">
+test
+</file>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol>
+GET http://%HOSTIP:%HTTPPORT/5320 HTTP/1.1
+Content-Range: bytes 2-4/5
+User-Agent: curl/7.12.1-CVS (i686-pc-linux-gnu) libcurl/7.12.1-CVS OpenSSL/0.9.6b ipv6 zlib/1.1.4 GSS libidn/0.4.6
+Host: %HOSTIP:%HTTPPORT
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+Content-Length: 0
+Expect: 100-continue
+
+GET http://%HOSTIP:%HTTPPORT/5320 HTTP/1.1
+Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", uri="/5320", response="2bcdd77cd20487372fe7ecd3158b80f9"
+Content-Range: bytes 2-4/5
+Host: %HOSTIP:%HTTPPORT
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+Content-Length: 3
+Expect: 100-continue
+
+st
+</protocol>
+</verify>
+</testcase>

tests/data/test5322

@@ -0,0 +1,106 @@
+<testcase>
+# Server-side
+<reply>
+<data>
+HTTP/1.1 100 Continue
+Server: Microsoft-IIS/5.0
+Date: Sun, 03 Apr 2005 14:57:45 GMT
+X-Powered-By: ASP.NET
+
+HTTP/1.1 401 authentication please swsbounce
+Server: Microsoft-IIS/6.0
+WWW-Authenticate: Digest realm="testrealm", nonce="1053604144"
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 0
+
+</data>
+<data1000>
+HTTP/1.1 200 A OK
+Server: Microsoft-IIS/6.0
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 3
+
+ok
+</data1000>
+
+<datacheck>
+HTTP/1.1 100 Continue
+Server: Microsoft-IIS/5.0
+Date: Sun, 03 Apr 2005 14:57:45 GMT
+X-Powered-By: ASP.NET
+
+HTTP/1.1 401 authentication please swsbounce
+Server: Microsoft-IIS/6.0
+WWW-Authenticate: Digest realm="testrealm", nonce="1053604144"
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 0
+
+HTTP/1.1 200 A OK
+Server: Microsoft-IIS/6.0
+Content-Type: text/html; charset=iso-8859-1
+Content-Length: 3
+
+ok
+</datacheck>
+
+</reply>
+
+# Client-side
+<client>
+# 
+<server>
+http
+</server>
+ <name>
+HTTP POST --digest with PUT and resumed upload and modified method, twice
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/5320.upload1 -T log/5320 http://%HOSTIP:%HTTPPORT/5320.upload2 -T log/5320 -u auser:apasswd --digest -x  http://%HOSTIP:%HTTPPORT -C 2 -X GET
+</command>
+<file name="log/5320">
+test
+</file>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol>
+GET http://%HOSTIP:%HTTPPORT/5320.upload1 HTTP/1.1
+Content-Range: bytes 2-4/5
+User-Agent: curl/7.12.1-CVS (i686-pc-linux-gnu) libcurl/7.12.1-CVS OpenSSL/0.9.6b ipv6 zlib/1.1.4 GSS libidn/0.4.6
+Host: %HOSTIP:%HTTPPORT
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+Content-Length: 0
+Expect: 100-continue
+
+GET http://%HOSTIP:%HTTPPORT/5320.upload1 HTTP/1.1
+Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", uri="/5320.upload1", response="0fb68703673e77243cbc4a3910e25c25"
+Content-Range: bytes 2-4/5
+Host: %HOSTIP:%HTTPPORT
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+Content-Length: 3
+Expect: 100-continue
+
+st
+GET http://%HOSTIP:%HTTPPORT/5320.upload2 HTTP/1.1
+Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", uri="/5320.upload2", response="3d6a8cb72fae0b06039f5bdb1a09eccd"
+Content-Range: bytes 2-4/5
+User-Agent: curl/7.16.1
+Host: %HOSTIP:%HTTPPORT
+Pragma: no-cache
+Accept: */*
+Proxy-Connection: Keep-Alive
+Content-Length: 3
+Expect: 100-continue
+
+st
+</protocol>
+</verify>
+</testcase>