mime: fix the binary encoder to handle large data properly

New test 666 checks this is effective.
As upload buffer size is significant in this kind of tests, shorten it
in similar test 652.

Fixes #4860
Closes #4833
Reported-by: RuurdBeerstra on github

diff --git a/lib/mime.c b/lib/mime.c
index 7d754e63b3885f7182828a1403d229916b6b483b..b72732310df29202697c72c2970292c908ca7e71 100644 (file)
--- a/lib/mime.c
+++ b/lib/mime.c
@@ -366,7 +366,7 @@ static size_t encoder_nop_read(char *buffer, size_t size, bool ateof,
     size = insize;
 
   if(size)
-    memcpy(buffer, st->buf, size);
+    memcpy(buffer, st->buf + st->bufbeg, size);
 
   st->bufbeg += size;
   return size;

diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 4cb7a8e74956f266b9a96d2b2c573ab40814f21e..3eca9d2c2ea7dfb4bc310c7938e7448ea37c36a4 100644 (file)
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -85,7 +85,7 @@ test626 test627 test628 test629 test630 test631 test632 test633 test634 \
 test635 test636 test637 test638 test639 test640 test641 test642 \
 test643 test644 test645 test646 test647 test648 test649 test650 test651 \
 test652 test653 test654 test655 test656 test658 test659 test660 test661 \
-test662 test663 test664 test665 test667 test668 \
+test662 test663 test664 test665 test666 test667 test668 \
 test670 test671 test672 test673 \
 \
 test700 test701 test702 test703 test704 test705 test706 test707 test708 \

diff --git a/tests/data/test666 b/tests/data/test666
new file mode 100644 (file)
index 0000000..bb60caf
--- /dev/null
+++ b/tests/data/test666
@@ -0,0 +1,293 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP POST
+HTTP MIME POST
+MIME
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data>
+HTTP/1.1 200 OK swsclose\r
+Date: Thu, 09 Nov 2010 14:49:00 GMT\r
+Server: test-server/fake\r
+Content-Length: 3\r
+\r
+OK
+</data>
+<datacheck>
+HTTP/1.1 200 OK swsclose\r
+Date: Thu, 09 Nov 2010 14:49:00 GMT\r
+Server: test-server/fake\r
+Content-Length: 3\r
+\r
+OK
+</datacheck>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+http
+</server>
+<tool>
+lib666
+</tool>
+
+ <name>
+HTTP mime post with binary-encoded huge data contents
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/666
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<strippart>
+s/^--------------------------[a-z0-9]*/------------------------------/
+s/boundary=------------------------[a-z0-9]*/boundary=----------------------------/
+</strippart>
+<protocol>
+POST /666 HTTP/1.1\r
+Host: %HOSTIP:%HTTPPORT\r
+Accept: */*\r
+Content-Length: 17225\r
+Content-Type: multipart/form-data; boundary=----------------------------\r
+\r
+------------------------------\r
+Content-Disposition: form-data; name="upfile"; filename="myfile.txt"\r
+Content-Type: text/plain\r
+Content-Transfer-Encoding: binary\r
+\r
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+OPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV\r
+--------------------------------\r
+</protocol>
+</verify>
+</testcase>

diff --git a/tests/libtest/Makefile.inc b/tests/libtest/Makefile.inc
index a8a148e668991e25a69381ed2e79a83e8aee9dcb..ab2680c97730fb20d673d0688972956b2722121c 100644 (file)
--- a/tests/libtest/Makefile.inc
+++ b/tests/libtest/Makefile.inc
@@ -22,7 +22,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect                \
  lib571 lib572 lib573 lib574 lib575 lib576        lib578 lib579 lib582   \
  lib583 lib585 lib586 lib587 lib589 lib590 lib591 lib597 lib598 lib599   \
  lib643 lib644 lib645 lib650 lib651 lib652 lib653 lib654 lib655 lib658   \
- lib659 lib661 lib667 lib668 \
+ lib659 lib661 lib666 lib667 lib668 \
  lib670 lib671 lib672 lib673 \
  lib1156 \
  lib1500 lib1501 lib1502 lib1503 lib1504 lib1505 lib1506 lib1507 lib1508 \
@@ -349,6 +349,9 @@ lib659_CPPFLAGS = $(AM_CPPFLAGS)
 lib661_SOURCES = lib661.c $(SUPPORTFILES)
 lib661_CPPFLAGS = $(AM_CPPFLAGS)
 
+lib666_SOURCES = lib666.c $(SUPPORTFILES)
+lib666_CPPFLAGS = $(AM_CPPFLAGS)
+
 lib667_SOURCES = lib667.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 lib667_LDADD = $(TESTUTIL_LIBS)
 lib667_CPPFLAGS = $(AM_CPPFLAGS)

diff --git a/tests/libtest/lib652.c b/tests/libtest/lib652.c
index 5c9cba5fb470d18190224cb647a416e64e09db8e..3d247d27b3659f2d1d4ad60e16d6bf58cea190cf 100644 (file)
--- a/tests/libtest/lib652.c
+++ b/tests/libtest/lib652.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -105,6 +105,9 @@ int test(char *URL)
   /* send a multi-part mail */
   test_setopt(curl, CURLOPT_MIMEPOST, mime);
 
+  /* Shorten upload buffer. */
+  test_setopt(curl, CURLOPT_UPLOAD_BUFFERSIZE, 16411L);
+
   /* get verbose debug output please */
   test_setopt(curl, CURLOPT_VERBOSE, 1L);
 

diff --git a/tests/libtest/lib666.c b/tests/libtest/lib666.c
new file mode 100644 (file)
index 0000000..c75936e
--- /dev/null
+++ b/tests/libtest/lib666.c
@@ -0,0 +1,120 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "test.h"
+
+#include "memdebug.h"
+
+static char buffer[17000]; /* more than 16K */
+
+int test(char *URL)
+{
+  CURL *curl = NULL;
+  CURLcode res = CURLE_OK;
+  curl_mime *mime = NULL;
+  curl_mimepart *part;
+  size_t i;
+
+  /* Checks huge binary-encoded mime post. */
+
+  /* Create a buffer with pseudo-binary data. */
+  for(i = 0; i < sizeof(buffer); i++)
+    if(i % 77 == 76)
+      buffer[i] = '\n';
+    else
+      buffer[i] = (char) (0x41 + i % 26); /* A...Z */
+
+  if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
+    fprintf(stderr, "curl_global_init() failed\n");
+    return TEST_ERR_MAJOR_BAD;
+  }
+
+  curl = curl_easy_init();
+  if(!curl) {
+    fprintf(stderr, "curl_easy_init() failed\n");
+    res = (CURLcode) TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+
+  /* Build mime structure. */
+  mime = curl_mime_init(curl);
+  if(!mime) {
+    fprintf(stderr, "curl_mime_init() failed\n");
+    res = (CURLcode) TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+  part = curl_mime_addpart(mime);
+  if(!part) {
+    fprintf(stderr, "curl_mime_addpart() failed\n");
+    res = (CURLcode) TEST_ERR_MAJOR_BAD;
+    goto test_cleanup;
+  }
+  res = curl_mime_name(part, "upfile");
+  if(res) {
+    fprintf(stderr, "curl_mime_name() failed\n");
+    goto test_cleanup;
+  }
+  res = curl_mime_filename(part, "myfile.txt");
+  if(res) {
+    fprintf(stderr, "curl_mime_filename() failed\n");
+    goto test_cleanup;
+  }
+  res = curl_mime_data(part, buffer, sizeof(buffer));
+  if(res) {
+    fprintf(stderr, "curl_mime_data() failed\n");
+    goto test_cleanup;
+  }
+  res = curl_mime_encoder(part, "binary");
+  if(res) {
+    fprintf(stderr, "curl_mime_encoder() failed\n");
+    goto test_cleanup;
+  }
+
+  /* First set the URL that is about to receive our mime mail. */
+  test_setopt(curl, CURLOPT_URL, URL);
+
+  /* Post form */
+  test_setopt(curl, CURLOPT_MIMEPOST, mime);
+
+  /* Shorten upload buffer. */
+  test_setopt(curl, CURLOPT_UPLOAD_BUFFERSIZE, 16411L);
+
+  /* get verbose debug output please */
+  test_setopt(curl, CURLOPT_VERBOSE, 1L);
+
+  /* include headers in the output */
+  test_setopt(curl, CURLOPT_HEADER, 1L);
+
+  /* Perform the request, res will get the return code */
+  res = curl_easy_perform(curl);
+
+test_cleanup:
+
+  /* always cleanup */
+  curl_easy_cleanup(curl);
+
+  /* now cleanup the mime structure */
+  curl_mime_free(mime);
+
+  curl_global_cleanup();
+
+  return res;
+}