[GNUnet-SVN] [gnurl] 140/173: http: fix missing 'Content-Length: 0' while negotiating auth

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ng0 pushed a commit to annotated tag gnurl-7.53.1
in repository gnurl.

commit 13e3a18b345af1a15b892b0bbedfbbff06e10a39
Author: Isaac Boukris <address@hidden>
AuthorDate: Fri Feb 3 14:30:26 2017 +0200

    http: fix missing 'Content-Length: 0' while negotiating auth
    
    - While negotiating auth during PUT/POST if a user-specified
      Content-Length header is set send 'Content-Length: 0'.
    
    This is what we do already in HTTPREQ_POST_FORM and what we did in the
    HTTPREQ_POST case (regression since afd288b).
    
    Prior to this change no Content-Length header would be sent in such a
    case.
    
    Bug: https://curl.haxx.se/mail/lib-2017-02/0006.html
    Reported-by: Dominik Hölzl
    
    Closes https://github.com/curl/curl/pull/1242
---
 lib/http.c              |  4 +-
 tests/data/Makefile.inc |  2 +-
 tests/data/test1284     | 89 +++++++++++++++++++++++++++++++++++++++++++++
 tests/data/test1285     | 97 +++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 189 insertions(+), 3 deletions(-)

diff --git a/lib/http.c b/lib/http.c
index 2066520e7..8db86cd84 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -2512,7 +2512,7 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
       postsize = data->state.infilesize;
 
     if((postsize != -1) && !data->req.upload_chunky &&
-       !Curl_checkheaders(conn, "Content-Length:")) {
+       (conn->bits.authneg || !Curl_checkheaders(conn, "Content-Length:"))) {
       /* only add Content-Length if not uploading chunked */
       result = Curl_add_bufferf(req_buffer,
                                 "Content-Length: %" CURL_FORMAT_CURL_OFF_T
@@ -2564,7 +2564,7 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
        we don't upload data chunked, as RFC2616 forbids us to set both
        kinds of headers (Transfer-Encoding: chunked and Content-Length) */
     if((postsize != -1) && !data->req.upload_chunky &&
-       !Curl_checkheaders(conn, "Content-Length:")) {
+       (conn->bits.authneg || !Curl_checkheaders(conn, "Content-Length:"))) {
       /* we allow replacing this header if not during auth negotiation,
          although it isn't very wise to actually set your own */
       result = Curl_add_bufferf(req_buffer,
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index c8334c8f3..953916d97 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -130,7 +130,7 @@ test1236 test1237 test1238 test1239 test1240 test1241 
test1242 test1243 \
 test1244 test1245 test1246 test1247 test1248 test1249 test1250 test1251 \
 test1252 test1253 test1254 test1255 test1256 test1257 test1258 test1259 \
 \
-test1280 test1281 test1282 test1283 \
+test1280 test1281 test1282 test1283 test1284 test1285 \
 \
 test1300 test1301 test1302 test1303 test1304 test1305 test1306 test1307 \
 test1308 test1309 test1310 test1311 test1312 test1313 test1314 test1315 \
diff --git a/tests/data/test1284 b/tests/data/test1284
new file mode 100644
index 000000000..8437a4082
--- /dev/null
+++ b/tests/data/test1284
@@ -0,0 +1,89 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP POST
+HTTP Digest auth
+</keywords>
+</info>
+
+# Server-side
+<reply>
+<data>
+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/1.1 401 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>
+<features>
+!SSPI
+crypto
+</features>
+<name>
+HTTP POST --digest with user-specified Content-Length header
+</name>
+# This test is to ensure 'Content-Length: 0' is sent while negotiating auth
+# even when there is a user-specified Content-Length header.
+# https://github.com/curl/curl/pull/1242
+<command>
+-H "Content-Length: 11" -u auser:apasswd --digest -d "junkelijunk" 
http://%HOSTIP:%HTTPPORT/1284
+</command>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol nonewline="yes">
+POST /1284 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+Content-Length: 0
+Content-Type: application/x-www-form-urlencoded
+
+POST /1284 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", 
uri="/1284", response="5763079608de439072861a59ac733515"
+Accept: */*
+Content-Length: 11
+Content-Type: application/x-www-form-urlencoded
+
+junkelijunk
+</protocol>
+</verify>
+</testcase>
diff --git a/tests/data/test1285 b/tests/data/test1285
new file mode 100644
index 000000000..16c66238a
--- /dev/null
+++ b/tests/data/test1285
@@ -0,0 +1,97 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP PUT
+HTTP Digest auth
+</keywords>
+</info>
+
+# Server-side
+<reply>
+<data>
+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/1.1 401 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>
+<features>
+!SSPI
+crypto
+</features>
+<name>
+HTTP PUT --digest with user-specified Content-Length header
+</name>
+# This test is to ensure 'Content-Length: 0' is sent while negotiating auth
+# even when there is a user-specified Content-Length header.
+# https://github.com/curl/curl/pull/1242
+<command>
+-H "Content-Length: 85" -u auser:apasswd --digest -T log/put1285 
http://%HOSTIP:%HTTPPORT/1285
+</command>
+<file name="log/put1285">
+This is data we upload with PUT
+a second line
+line three
+four is the number of lines
+</file>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol>
+PUT /1285 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+Content-Length: 0
+
+PUT /1285 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", 
uri="/1285", response="dc185587d5e8391b347eef194c2a3cd6"
+Accept: */*
+Content-Length: 85
+Expect: 100-continue
+
+This is data we upload with PUT
+a second line
+line three
+four is the number of lines
+</protocol>
+</verify>
+</testcase>

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