Author: markt
Date: Wed Nov 14 14:52:08 2018
New Revision: 1846589
URL: http://svn.apache.org/viewvc?rev=1846589&view=rev
Log:
Fix https://bz.apache.org/bugzilla/show_bug.cgi?id=62899
Prevent the incorrect timing out of connections when Servlet non-blocking I/O
is used to read a request body over an HTTP/2 stream.
Modified:
tomcat/tc8.5.x/trunk/ (props changed)
tomcat/tc8.5.x/trunk/java/org/apache/catalina/connector/InputBuffer.java
tomcat/tc8.5.x/trunk/java/org/apache/coyote/AbstractProcessor.java
tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/Stream.java
tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/StreamProcessor.java
tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml
Propchange: tomcat/tc8.5.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Nov 14 14:52:08 2018
@@ -1,2 +1,2 @@
/tomcat/tc8.0.x/trunk:1809644
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93980,1794556,1794674,1794684,1794752,1794941-1794942,1795278,1795289,1795298,1795305,1795813,1795893,1796090,1796275,1796693-1796695,1796729,1796806,1796836,1796873,1796878,1797197,1797338,1797344,1797354-1797355,1797516,1797528,1797532,1797536,1797540,1797543,1797677-1797678,1797692,1797694,1797748,1797828,1798126,1798238,1798280,1798371,1798379,1798384,1798390,1798395,1798419,1798505,1798507,1798509,1798533,1798546,1798561,1798977,1799115,1799126,1799164,1799190,1799194,1799216,1799231,1799250,1799253,1799285,1799368,1799412,1799498,1799514-1799515,1799677,1799701-1799702,1799704,1799709,1799885,1799893,1799895,1799916,1800136-1800138,1800202,1800309,1800390,1800617,1800629,1800791,1800816,1800850,1800864,1800867,1800874,1800885,1800980-1800981,1800984,1800988,1800992,1801195,1801686,1801688,1801709,1801717,1801774,1801778,1802083,1802195,1802204-1802205,1802210,1802225-1802226,1802229,1802403,1802475,1802490,1802788,1802796,1802803,1802820,1802828,1802833,1802836,1803030,1803038
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819057,1819061,1819063,1819068,1819070-1819071,1819074,1819077,1819148,1819903,1820003,1820005,1820138,1820153,1820194,1820196-1820197,1820202,1820206,1820222,1820265,1820272,1820276,1820279,1820281,1820302,1820634,1820701,1820705,1820932,1820981,1820994,1821157,1821167,1821197-1821203,1821225,1821234-1821235,1821251-1821252,1821293,1821328,1821381,1821490,1821708,1821932,1822001,1822016,1822109,1822111,1822116,1822150,1822232,1822524,1822644,1822775,1822945-1822946,1823006-1823007,1823102,1823111,1823150,1823161,1823262,1823306,1823310,1823337,1823481,1823483,1823492,1823495,1823540,1823620,1824154,1824201,1824228,1824254,1824263,1824297,1824301,1824311,1824323,1824357,1824766,1824774,1824892,1824901,1824959,1825054,1825516,1825519,1825713,1825738,1825872,1825909,1825943,1825987,1826048,1826111,1826115,1826209,1826361,1826375,1826688,1826731,1826794,1826812,1826817,1826825,1826867,1826869,1826958,1826975,1826977,1826979,1826985-1826986,1827150,1827203-1827204,1827223,1827297,182729
9,1827363,1827368,1827396,1827408,1827428,1827479,1827491,1827498,1827860,1828016,1828223-1828239,1828253,1828262,1828545,1828551,1828565,1828946,1829082,1829084,1829086,1829276,1829355,1829364,1829366,1829830,1829879,1829915,1829924,1829934,1829990-1829991,1830013,1830051,1830068,1830087,1830325,1830336,1830341,1830367,1830373,1830378,1830549,1830669-1830670,1830764-1830765,1830772,1830802,1830861,1830864,1830989,1830999-1831001,1831251,1831256,1831262,1831333,1831338,1831341-1831342,1831389,1831410,1831439,1831483,1831486,1831556,1831568,1831573,1831691,1831718,1831726,1831763,1831828,1831985,1832017,1832124-1832125,1832127,1832129,1832160,1832163,1832193,1832262,1832455,1832518-1832519,1832525-1832526,1832545,1832554,1832572,1832592,1832596,1832602,1832619,1832665,1832692,1832696,1832704,1832707,1832744,1832843,1832856,1832882,1832925,1832965,1833001,1833016,1833062,1833071,1833737,1833757,1833768-1833770,1833794-1833800,1833825,1833831,1833906,1833915,1833918,1833982,1833989,183
3994,1834001,1834003,1834011,1834020,1834058,1834080,1834195,1834197-1834198,1834354,1834356,1834411,1834542,1834548,1834550,1834559,1834672,1834689,1834703,1834860,1834877,1835085,1835193-1835194,1835229,1835246,1835261,1835263-1835264,1835269-1835271,1835413,1835416,1835421,1835427,1835429,1835431,1835435,1835438,1835458,1835465,1835543,1835622,1835639,1835831,1835844,1836102,1836738,1836949,1837044,1837133,1837156,1837176,1837300,1837510-1837511,1837520,1837523,1837530,1837551,1837554,1837581,1837613,1837637,1837726,1837731,1837734-1837737,1837746,1837786-1837788,1837809-1837810,1837818,1837865,1837871-1837872,1837878,1837895,1838028,1838100,1838104,1838106-1838107,1838155,1838163,1838188,1838243,1838275,1838277,1838279,1838281,1838286,1838400,1838433,1838473,1838492,1838494,1838502,1838925,1838942,1839057,1839237,1839239,1839575,1839604,1839737,1839741,1839752,1839765,1839922,1839955,1839960,1839977,1839983-1839984,1840055,1840059,1840062,1840099,1840264,1840279,1840535,1840634,
1840641,1840653,1840655,1840681,1840706-1840707,1840709,1840712,1840737,1840747,1840759,1840763-1840764,1840812,1840817,1840922,1841069,1841347,1841445,1841746,1841757,1841893,1842203,1842656,1842658-1842659,1842691,1842702,1842706,1842725,1842809,1842816-1842817,1842878,1842950,1843048,1843142,1843314,1843404-1843405,1843428-1843429,1843474,1843536,1843542,1843601,1843630,1843657,1843900,1843991,1844065,1844161-1844162,1844493,1844496-1844497,1844502,1845099,1845210,1845249-1845250,1845338,1845462-1845463,1845465,1845469,1845472,1845489,1845495,1845519,1845573,1845770,1845799,1845893,1845903,1845923,1846236,1846430,1846545,1846551
Modified:
tomcat/tc8.5.x/trunk/java/org/apache/catalina/connector/InputBuffer.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/catalina/connector/InputBuffer.java?rev=1846589&r1=1846588&r2=1846589&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/catalina/connector/InputBuffer.java
(original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/catalina/connector/InputBuffer.java
Wed Nov 14 14:52:08 2018
@@ -27,6 +27,7 @@ import java.security.PrivilegedActionExc
import java.security.PrivilegedExceptionAction;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.atomic.AtomicBoolean;
import javax.servlet.ReadListener;
@@ -222,17 +223,23 @@ public class InputBuffer extends Reader
public int available() {
+ int available = availableInThisBuffer();
+ if (available == 0) {
+ coyoteRequest.action(ActionCode.AVAILABLE,
+ Boolean.valueOf(coyoteRequest.getReadListener() != null));
+ available = (coyoteRequest.getAvailable() > 0) ? 1 : 0;
+ }
+ return available;
+ }
+
+
+ private int availableInThisBuffer() {
int available = 0;
if (state == BYTE_STATE) {
available = bb.remaining();
} else if (state == CHAR_STATE) {
available = cb.remaining();
}
- if (available == 0) {
- coyoteRequest.action(ActionCode.AVAILABLE,
- Boolean.valueOf(coyoteRequest.getReadListener() != null));
- available = (coyoteRequest.getAvailable() > 0) ? 1 : 0;
- }
return available;
}
@@ -290,11 +297,21 @@ public class InputBuffer extends Reader
}
return false;
}
- boolean result = available() > 0;
- if (!result) {
- coyoteRequest.action(ActionCode.NB_READ_INTEREST, null);
+ // Checking for available data at the network level and registering for
+ // read can be done sequentially for HTTP/1.x and AJP as there is only
+ // ever a single thread processing the socket at any one time. However,
+ // for HTTP/2 there is one thread processing the connection and
separate
+ // threads for each stream. For HTTP/2 the two operations have to be
+ // performed atomically else it is possible for the connection thread
to
+ // read more data in to the buffer after the stream thread checks for
+ // available network data but before it registers for read.
+ if (availableInThisBuffer() > 0) {
+ return true;
}
- return result;
+
+ AtomicBoolean result = new AtomicBoolean();
+ coyoteRequest.action(ActionCode.NB_READ_INTEREST, result);
+ return result.get();
}
Modified: tomcat/tc8.5.x/trunk/java/org/apache/coyote/AbstractProcessor.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/coyote/AbstractProcessor.java?rev=1846589&r1=1846588&r2=1846589&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/coyote/AbstractProcessor.java
(original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/coyote/AbstractProcessor.java Wed Nov
14 14:52:08 2018
@@ -569,9 +569,8 @@ public abstract class AbstractProcessor
break;
}
case NB_READ_INTEREST: {
- if (!isRequestBodyFullyRead()) {
- registerReadInterest();
- }
+ AtomicBoolean isReady = (AtomicBoolean)param;
+ isReady.set(isReadyForRead());
break;
}
case NB_WRITE_INTEREST: {
@@ -773,6 +772,19 @@ public abstract class AbstractProcessor
}
+ protected boolean isReadyForRead() {
+ if (available(true) > 0) {
+ return true;
+ }
+
+ if (!isRequestBodyFullyRead()) {
+ registerReadInterest();
+ }
+
+ return false;
+ }
+
+
protected abstract boolean isRequestBodyFullyRead();
Modified: tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/Stream.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/Stream.java?rev=1846589&r1=1846588&r2=1846589&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/Stream.java (original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/Stream.java Wed Nov 14
14:52:08 2018
@@ -1049,15 +1049,22 @@ public class Stream extends AbstractStre
}
- void registerReadInterest() {
+ final boolean isReadyForRead() {
ensureBuffersExist();
- synchronized (inBuffer) {
- readInterest = true;
+ synchronized (this) {
+ if (available() > 0) {
+ return true;
+ }
+
+ if (!isRequestBodyFullyRead()) {
+ readInterest = true;
+ }
+
+ return false;
}
}
-
synchronized boolean isRequestBodyFullyRead() {
return (inBuffer == null || inBuffer.position() == 0) &&
isInputFinished();
}
Modified: tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/StreamProcessor.java
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/StreamProcessor.java?rev=1846589&r1=1846588&r2=1846589&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/StreamProcessor.java
(original)
+++ tomcat/tc8.5.x/trunk/java/org/apache/coyote/http2/StreamProcessor.java Wed
Nov 14 14:52:08 2018
@@ -211,6 +211,12 @@ class StreamProcessor extends AbstractPr
@Override
+ protected final boolean isReadyForRead() {
+ return stream.getInputBuffer().isReadyForRead();
+ }
+
+
+ @Override
protected final boolean isRequestBodyFullyRead() {
return stream.getInputBuffer().isRequestBodyFullyRead();
}
@@ -218,7 +224,9 @@ class StreamProcessor extends AbstractPr
@Override
protected final void registerReadInterest() {
- stream.getInputBuffer().registerReadInterest();
+ // Should never be called for StreamProcessor as isReadyForRead() is
+ // overridden
+ throw new UnsupportedOperationException();
}
Modified: tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml?rev=1846589&r1=1846588&r2=1846589&view=diff
==============================================================================
--- tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc8.5.x/trunk/webapps/docs/changelog.xml Wed Nov 14 14:52:08 2018
@@ -72,6 +72,11 @@
Avoid an exception when using Tomcat Native built with a version of
OpenSSL that does not support TLSv1.3. (markt)
</fix>
+ <fix>
+ <bug>62899</bug>: Prevent the incorrect timing out of connections when
+ Servlet non-blocking I/O is used to read a request body over an HTTP/2
+ stream. (markt)
+ </fix>
</changelog>
</subsection>
<subsection name="Other">
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