117 lines
3.7 KiB
Diff
117 lines
3.7 KiB
Diff
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From aa62596afcc9143aa663bf834d305441cdd4cc70 Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Tue, 19 May 2020 11:15:07 +0100
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Subject: [PATCH 17/19] curl: Case insensitive check for accept-ranges
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(RHBZ#1837337).
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When accessing an HTTP/2 server we read lowercase headers so the
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existing test for byte range support did not work. You would see an
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error like this:
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nbdkit: curl[1]: error: server does not support 'range' (byte range) requests
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This commit copies the bug fix which was recently added to qemu’s
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block/curl.c.
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qemu commits:
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commit 69032253c33ae1774233c63cedf36d32242a85fc
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Author: David Edmondson <david.edmondson@oracle.com>
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Date: Mon Feb 24 10:13:10 2020 +0000
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block/curl: HTTP header field names are case insensitive
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commit 7788a319399f17476ff1dd43164c869e320820a2
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Author: David Edmondson <david.edmondson@oracle.com>
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Date: Mon Feb 24 10:13:09 2020 +0000
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block/curl: HTTP header fields allow whitespace around values
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Thanks: David Edmondson, Pino Toscano, Zi Liu
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(cherry picked from commit c1260ec1f6538831e10f164567b53054a2ec0c2a)
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---
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plugins/curl/Makefile.am | 1 +
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plugins/curl/curl.c | 29 ++++++++++++++++++++++++-----
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tests/web-server.c | 2 +-
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3 files changed, 26 insertions(+), 6 deletions(-)
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diff --git a/plugins/curl/Makefile.am b/plugins/curl/Makefile.am
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index 024ddb6d..3dbe3ca8 100644
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--- a/plugins/curl/Makefile.am
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+++ b/plugins/curl/Makefile.am
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@@ -44,6 +44,7 @@ nbdkit_curl_plugin_la_SOURCES = \
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nbdkit_curl_plugin_la_CPPFLAGS = \
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-I$(top_srcdir)/include \
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+ -I$(top_srcdir)/common/include \
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-I$(top_srcdir)/common/utils \
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$(NULL)
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nbdkit_curl_plugin_la_CFLAGS = \
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diff --git a/plugins/curl/curl.c b/plugins/curl/curl.c
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index b1693dc0..ac30cbdd 100644
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--- a/plugins/curl/curl.c
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+++ b/plugins/curl/curl.c
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@@ -57,6 +57,7 @@
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#include <nbdkit-plugin.h>
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#include "cleanup.h"
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+#include "ascii-ctype.h"
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static const char *url = NULL;
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static const char *user = NULL;
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@@ -497,12 +498,30 @@ header_cb (void *ptr, size_t size, size_t nmemb, void *opaque)
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{
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struct curl_handle *h = opaque;
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size_t realsize = size * nmemb;
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- const char *accept_line = "Accept-Ranges: bytes";
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- const char *line = ptr;
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+ const char *header = ptr;
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+ const char *end = header + realsize;
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+ const char *accept_ranges = "accept-ranges:";
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+ const char *bytes = "bytes";
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- if (realsize >= strlen (accept_line) &&
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- strncmp (line, accept_line, strlen (accept_line)) == 0)
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- h->accept_range = true;
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+ if (realsize >= strlen (accept_ranges) &&
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+ strncasecmp (header, accept_ranges, strlen (accept_ranges)) == 0) {
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+ const char *p = strchr (header, ':') + 1;
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+
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+ /* Skip whitespace between the header name and value. */
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+ while (p < end && *p && ascii_isspace (*p))
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+ p++;
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+
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+ if (end - p >= strlen (bytes)
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+ && strncmp (p, bytes, strlen (bytes)) == 0) {
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+ /* Check that there is nothing but whitespace after the value. */
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+ p += strlen (bytes);
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+ while (p < end && *p && ascii_isspace (*p))
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+ p++;
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+
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+ if (p == end || !*p)
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+ h->accept_range = true;
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+ }
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+ }
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return realsize;
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}
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diff --git a/tests/web-server.c b/tests/web-server.c
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index f27ee70d..f9f10917 100644
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--- a/tests/web-server.c
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+++ b/tests/web-server.c
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@@ -235,7 +235,7 @@ handle_request (int s, bool headers_only)
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const char response1_ok[] = "HTTP/1.1 200 OK\r\n";
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const char response1_partial[] = "HTTP/1.1 206 Partial Content\r\n";
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const char response2[] =
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- "Accept-Ranges: bytes\r\n"
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+ "Accept-rANGES: bytes\r\n" /* See RHBZ#1837337 */
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"Connection: keep-alive\r\n"
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"Content-Type: application/octet-stream\r\n";
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char response3[64];
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--
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2.18.2
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