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authorDaniel Stenberg <daniel@haxx.se>2020-02-09 15:28:03 +0100
committerDaniel Stenberg <daniel@haxx.se>2020-02-09 22:41:49 +0100
commit02f8de65165ef161a21ace25da3652e1fb13b99b (patch)
treec85885a4640afecf17d6e92e4df12f887619824c
parentf8f4a9446550f2da7f1dc1892f780aacc7115ec3 (diff)
altsvc: keep a copy of the file name to survive handle reset
The alt-svc cache survives a call to curl_easy_reset fine, but the file name to use for saving the cache was cleared. Now the alt-svc cache has a copy of the file name to survive handle resets. Added test 1908 to verify. Reported-by: Craig Andrews Fixes #4898 Closes #4902
-rw-r--r--docs/libcurl/curl_easy_reset.35
-rw-r--r--lib/altsvc.c17
-rw-r--r--tests/data/Makefile.inc1
-rw-r--r--tests/data/test190871
-rw-r--r--tests/libtest/Makefile.inc6
-rw-r--r--tests/libtest/lib1908.c47
6 files changed, 143 insertions, 4 deletions
diff --git a/docs/libcurl/curl_easy_reset.3 b/docs/libcurl/curl_easy_reset.3
index 539f9c716..3c844c7dd 100644
--- a/docs/libcurl/curl_easy_reset.3
+++ b/docs/libcurl/curl_easy_reset.3
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2014, 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
@@ -33,7 +33,8 @@ default values. This puts back the handle to the same state as it was in when
it was just created with \fIcurl_easy_init(3)\fP.
It does not change the following information kept in the handle: live
-connections, the Session ID cache, the DNS cache, the cookies and shares.
+connections, the Session ID cache, the DNS cache, the cookies, the shares or
+the alt-svc cache.
.SH AVAILABILITY
This function was added in libcurl 7.12.1
.SH RETURN VALUE
diff --git a/lib/altsvc.c b/lib/altsvc.c
index 93cc302bd..c05562985 100644
--- a/lib/altsvc.c
+++ b/lib/altsvc.c
@@ -185,7 +185,16 @@ static CURLcode altsvc_load(struct altsvcinfo *asi, const char *file)
{
CURLcode result = CURLE_OK;
char *line = NULL;
- FILE *fp = fopen(file, FOPEN_READTEXT);
+ FILE *fp;
+
+ /* we need a private copy of the file name so that the altsvc cache file
+ name survives an easy handle reset */
+ free(asi->filename);
+ asi->filename = strdup(file);
+ if(!asi->filename)
+ return CURLE_OUT_OF_MEMORY;
+
+ fp = fopen(file, FOPEN_READTEXT);
if(fp) {
line = malloc(MAX_ALTSVC_LINE);
if(!line)
@@ -206,6 +215,7 @@ static CURLcode altsvc_load(struct altsvcinfo *asi, const char *file)
return result;
fail:
+ Curl_safefree(asi->filename);
free(line);
fclose(fp);
return CURLE_OUT_OF_MEMORY;
@@ -299,6 +309,7 @@ void Curl_altsvc_cleanup(struct altsvcinfo *altsvc)
n = e->next;
altsvc_free(as);
}
+ free(altsvc->filename);
free(altsvc);
}
}
@@ -317,6 +328,10 @@ CURLcode Curl_altsvc_save(struct altsvcinfo *altsvc, const char *file)
/* no cache activated */
return CURLE_OK;
+ /* if not new name is given, use the one we stored from the load */
+ if(!file && altsvc->filename)
+ file = altsvc->filename;
+
if((altsvc->flags & CURLALTSVC_READONLYFILE) || !file || !file[0])
/* marked as read-only, no file or zero length file name */
return CURLE_OK;
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 5fbe18396..be55f0460 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -192,6 +192,7 @@ test1700 test1701 test1702 \
test1800 test1801 \
\
test1900 test1901 test1902 test1903 test1904 test1905 test1906 test1907 \
+test1908 \
\
test2000 test2001 test2002 test2003 test2004 test2005 test2006 test2007 \
test2008 test2009 test2010 test2011 test2012 test2013 test2014 test2015 \
diff --git a/tests/data/test1908 b/tests/data/test1908
new file mode 100644
index 000000000..de34d0ee2
--- /dev/null
+++ b/tests/data/test1908
@@ -0,0 +1,71 @@
+<testcase>
+<info>
+<keywords>
+CURLINFO_EFFECTIVE_URL
+</keywords>
+</info>
+
+# Server-side
+<reply>
+<data nocheck="yes">
+HTTP/1.1 200 OK
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Content-Type: text/html
+Funny-head: yesyes swsclose
+Content-Length: 0
+alt-svc: h2="3dbbdetxoyw4nsp6c3cc456oj2ays6s43ezxzsfxxri3h5xqd.example:443"; ma=315360000; persist=1
+
+</data>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+
+# require debug so that alt-svc can work over plain old HTTP
+<features>
+alt-svc
+debug
+</features>
+<name>
+alt-svc cache save after resetting the handle
+</name>
+<setenv>
+# make debug-curl accept Alt-Svc over plain HTTP
+CURL_ALTSVC_HTTP="yeah"
+</setenv>
+<tool>
+lib1908
+</tool>
+
+<command>
+%HOSTIP:%HTTPPORT/1908
+</command>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<protocol>
+GET /1908 HTTP/1.1
+Host: %HOSTIP:%HTTPPORT
+Accept: */*
+
+</protocol>
+<stripfile>
+# strip out the (dynamic) expire date from the file so that the rest
+# matches
+s/\"([^\"]*)\"/TIMESTAMP/
+</stripfile>
+<file name="log/altsvc-1908">
+# Your alt-svc cache. https://curl.haxx.se/docs/alt-svc.html
+# This file was generated by libcurl! Edit at your own risk.
+h1 127.0.0.1 8990 h2 3dbbdetxoyw4nsp6c3cc456oj2ays6s43ezxzsfxxri3h5xqd.example 443 TIMESTAMP 1 0
+</file>
+</verify>
+</testcase>
diff --git a/tests/libtest/Makefile.inc b/tests/libtest/Makefile.inc
index 374a66747..95ef8309b 100644
--- a/tests/libtest/Makefile.inc
+++ b/tests/libtest/Makefile.inc
@@ -33,7 +33,7 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect \
lib1550 lib1551 lib1552 lib1553 lib1554 lib1555 lib1556 lib1557 \
lib1558 lib1559 lib1560 lib1564 lib1565 \
lib1591 lib1592 lib1593 lib1594 lib1596 \
- lib1900 lib1905 lib1906 lib1907 \
+ lib1900 lib1905 lib1906 lib1907 lib1908 \
lib2033
chkdecimalpoint_SOURCES = chkdecimalpoint.c ../../lib/mprintf.c \
@@ -578,6 +578,10 @@ lib1907_SOURCES = lib1907.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
lib1907_LDADD = $(TESTUTIL_LIBS)
lib1907_CPPFLAGS = $(AM_CPPFLAGS)
+lib1908_SOURCES = lib1908.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
+lib1908_LDADD = $(TESTUTIL_LIBS)
+lib1908_CPPFLAGS = $(AM_CPPFLAGS)
+
lib2033_SOURCES = libntlmconnect.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
lib2033_LDADD = $(TESTUTIL_LIBS)
lib2033_CPPFLAGS = $(AM_CPPFLAGS) -DUSE_PIPELINING
diff --git a/tests/libtest/lib1908.c b/tests/libtest/lib1908.c
new file mode 100644
index 000000000..bacbc9710
--- /dev/null
+++ b/tests/libtest/lib1908.c
@@ -0,0 +1,47 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 2013 - 2020, Linus Nielsen Feltzing, <linus@haxx.se>
+ *
+ * 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 "testutil.h"
+#include "warnless.h"
+#include "memdebug.h"
+
+int test(char *URL)
+{
+ CURLcode ret = CURLE_OK;
+ CURL *hnd;
+ start_test_timing();
+
+ curl_global_init(CURL_GLOBAL_ALL);
+
+ hnd = curl_easy_init();
+ if(hnd) {
+ curl_easy_setopt(hnd, CURLOPT_URL, URL);
+ curl_easy_setopt(hnd, CURLOPT_NOPROGRESS, 1L);
+ curl_easy_setopt(hnd, CURLOPT_ALTSVC, "log/altsvc-1908");
+ ret = curl_easy_perform(hnd);
+ curl_easy_reset(hnd);
+ curl_easy_cleanup(hnd);
+ }
+ curl_global_cleanup();
+ return (int)ret;
+}