Dependency update: update mod_pagespeed to the head of master

Update mod_pagespeed to 3a975382362a169a38b5d1a75b239f30ede2d112

.gitignore

@@ -2,3 +2,4 @@ test/tmp
 psol/
 psol-*.tar.gz
 *.*.*.*.tar.gz
+nginx

.gitmodules

@@ -0,0 +1,18 @@
+[submodule "testing-dependencies/mod_pagespeed"]
+	path = testing-dependencies/mod_pagespeed
+	url = https://github.com/pagespeed/mod_pagespeed.git
+[submodule "testing-dependencies/ngx_cache_purge"]
+	path = testing-dependencies/ngx_cache_purge
+	url = https://github.com/FRiCKLE/ngx_cache_purge.git
+[submodule "testing-dependencies/nginx"]
+	path = testing-dependencies/nginx
+	url = https://github.com/nginx/nginx.git
+[submodule "testing-dependencies/set-misc-nginx-module"]
+	path = testing-dependencies/set-misc-nginx-module
+	url = https://github.com/openresty/set-misc-nginx-module
+[submodule "testing-dependencies/ngx_devel_kit"]
+	path = testing-dependencies/ngx_devel_kit
+	url = https://github.com/simpl/ngx_devel_kit
+[submodule "testing-dependencies/headers-more-nginx-module"]
+	path = testing-dependencies/headers-more-nginx-module
+	url = https://github.com/openresty/headers-more-nginx-module

.travis.yml

@@ -1,50 +1,33 @@
 language: c++
+env:
+  global:
+    - MAKEFLAGS=-j3
+# By default travis loads submodules serially, but we can load them in parallel
+# if we install an updated git and use --jobs.  Some timing numbers:
+#   serial: 257s
+#   jobs=4: 182s (29s to install new git, 153s to run the downloads)
+#   jobs=8: 179s (29s to install new git, 150s to run the downloads)
+# We can't use --depth=1, though, because github doesn't have
+# allowReachableSHA1InWant set.
+#
+# TODO(jefftk): once we're running on a server with git 2.8 or later we can have
+#               --jobs without installing a new git.
+git:
+  submodules: false
+before_install:
+  - sudo add-apt-repository --yes ppa:git-core/ppa
+  - sudo apt-get update
+  - sudo apt-get install git
+  - git submodule update --init --recursive --jobs=8
 install:
-  - mv $TRAVIS_BUILD_DIR ~/ngxpagespeed
+  scripts/build_ngx_pagespeed.sh --devel --assume-yes
-  - sudo apt-get install build-essential zlib1g-dev libpcre3 libpcre3-dev unzip g++ python gperf make devscripts fakeroot git curl netcat-traditional gcc-mozilla clang-3.4 2>&1 > /dev/null
-  - export PATH=/usr/lib/gcc-mozilla/bin:$PATH
-  - sudo ln -sf /usr/lib/gcc-mozilla/lib/libstdc++.so.6 /usr/lib/x86_64-linux-gnu/libstdc++.so.6
-#  - sudo sh -c 'echo "image/webp webp" >> /etc/mime.types'
-#  - mkdir -p ~/bin
-#  - cd ~/bin
-#  - git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
-  - mkdir ~/mod_pagespeed
-  - cd ~/mod_pagespeed
-  - git clone --recursive https://github.com/pagespeed/mod_pagespeed.git src
-  - cd src
-  - python build/gyp_chromium --depth=.
-  - cd ~/mod_pagespeed/src/pagespeed/automatic
-  - make BUILDTYPE=Release -C ../../pagespeed/automatic all
-  - cd ~
-  - git clone https://github.com/FRiCKLE/ngx_cache_purge.git
-  - NGX_CACHE_PURGE=$PWD/ngx_cache_purge
-  - wget https://openresty.org/download/ngx_openresty-1.9.7.2.tar.gz
-  - tar xzf ngx_openresty-*.tar.gz
-  - cd ngx_openresty-*/
-  - ./configure --with-luajit
-  - make
-  - NGX_DEVEL_KIT=$(echo $HOME/ngx_openresty-*/build/ngx_devel_kit-*/)
-  - SET_MISC_MODULE=$(echo $HOME/ngx_openresty-*/build/set-misc-nginx-module-*/)
-  - HEADERS_MORE_MODULE=$(echo $HOME/ngx_openresty-*/build/headers-more-nginx-module-*/)
-  - cd ~
-  - wget https://github.com/nginx/nginx/archive/branches/default.zip
-  - unzip default.zip
-  - cd nginx-branches-default
-  - MOD_PAGESPEED_DIR="$HOME/mod_pagespeed/src" ./auto/configure --add-module=$HOME/ngxpagespeed --add-module="$NGX_CACHE_PURGE" --add-module="$NGX_DEVEL_KIT" --add-module="$SET_MISC_MODULE" --add-module="$HEADERS_MORE_MODULE" --with-ipv6
-  - make
-  - sudo make install
 script:
-  - echo "build successful"
+  test/run_tests.sh $PWD/testing-dependencies/mod_pagespeed/ \
-  - echo "cd ~/ngxpagespeed"
+                    $PWD/nginx/sbin/nginx
-  - echo "sudo ./test/run_tests.sh $HOME/mod_pagespeed $HOME/nginx-branches-default/objs/nginx"
+dist: trusty
 sudo: required
 compiler:
   - gcc
 notifications:
   email:
-    - cheesy@google.com
+    - pagespeed-ci@googlegroups.com
-    - jefftk@google.com
-    - morlovich@google.com
-    - jmarantz@google.com
-    - huibao@google.com
-    - jcrowell@google.com

PSOL_BINARY_URL

@@ -1,4 +1,4 @@
 In a release this file would contain the URL to download the pre-compiled PSOL
 binary, but on development branches (like this one) you have to build PSOL from
 source yourself.  See:
-  https://github.com/pagespeed/ngx_pagespeed/wiki/Building-PSOL-From-Source
+  https://github.com/pagespeed/ngx_pagespeed/wiki/Building-PSOL-From-Source

README.md

@@ -1,6 +1,6 @@
 ![ngx_pagespeed](https://lh6.googleusercontent.com/-qufedJIJq7Y/UXEvVYxyYvI/AAAAAAAADo8/JHDFQhs91_c/s401/04_ngx_pagespeed.png)
 
-[![Build Status](https://travis-ci.org/pagespeed/ngx_pagespeed.svg?branch=trunk-tracking)](https://travis-ci.org/pagespeed/ngx_pagespeed)
+[![Build Status](https://travis-ci.org/pagespeed/ngx_pagespeed.svg?branch=master)](https://travis-ci.org/pagespeed/ngx_pagespeed)
 
 ngx_pagespeed speeds up your site and reduces page load time by automatically
 applying web performance best practices to pages and associated assets (CSS,

config

@@ -15,9 +15,11 @@
 # Environment Variables (Optional):
 #   MOD_PAGESPEED_DIR: absolute path to the mod_pagespeed/src directory
 #   PSOL_BINARY: absolute path to pagespeed_automatic.a
+#   PSOL_BUILDTYPE: Release or Debug
 
 mod_pagespeed_dir="${MOD_PAGESPEED_DIR:-unset}"
 position_aux="${POSITION_AUX:-unset}"
+psol_buildtype="${PSOL_BUILDTYPE:-unset}"
 
 if [ "$mod_pagespeed_dir" = "unset" ] ; then
   mod_pagespeed_dir="$ngx_addon_dir/psol/include"
@@ -26,7 +28,8 @@ if [ "$mod_pagespeed_dir" = "unset" ] ; then
   if [ ! -e "$mod_pagespeed_dir" ] ; then
     echo "ngx_pagespeed: pagespeed optimization library not found:"
 
-    psol_binary_url="$(cat $ngx_addon_dir/PSOL_BINARY_URL)"
+    psol_binary_url="$($ngx_addon_dir/scripts/format_binary_url.sh \
+                           $ngx_addon_dir/PSOL_BINARY_URL)"
     if [[ "$psol_binary_url" != https://* ]]; then
       echo "
   This is a development branch of ngx_pagespeed, which means there is no
@@ -74,10 +77,16 @@ else
   exit 1
 fi
 
-if [ "$NGX_DEBUG" = "YES" ]; then
+if [ "$psol_buildtype" = "unset" ] ; then
-  buildtype=Debug
+  if [ "$NGX_DEBUG" = "YES" ]; then
+    buildtype=Debug
+    # If we're using a psol tarball that doesn't contain Debug/ (which is the case
+    # from 1.12 onward) then this will be overriden to buildtype=Release below.
+  else
+    buildtype=Release
+  fi
 else
-  buildtype=Release
+  buildtype=$psol_buildtype
 fi
 
 # If the compiler is gcc, we want to use g++ to link, if at all possible,
@@ -143,6 +152,22 @@ if [ "$psol_binary" = "unset" ] ; then
     psol_binary="\
         $mod_pagespeed_dir/pagespeed/automatic/pagespeed_automatic.a"
   else
+    if ! [ -d "$ngx_addon_dir/psol/lib/$buildtype" ]; then
+      echo "
+You have set --with-debug for building nginx, but precompiled Debug binaries for
+PSOL, which ngx_pagespeed depends on, aren't available.  If you're trying to
+debug PSOL you need to build it from source.  If you just want to run nginx with
+debug-level logging you can use the Release binaries."
+      echo -n "
+Use the available Release binaries?"
+      read -p " [Y/n] " yn
+      if [[ "$yn" == N* || "$yn" == n* ]]; then
+        echo "Cancelled."
+        exit 1
+      fi
+
+      buildtype=Release
+    fi
     psol_library_dir="$ngx_addon_dir/psol/lib/$buildtype/$os_name/$arch_name"
     psol_binary="$psol_library_dir/pagespeed_automatic.a"
   fi
@@ -179,7 +204,7 @@ pagespeed_include="\
   $mod_pagespeed_dir/url"
 ngx_feature_path="$pagespeed_include"
 
-pagespeed_libs="$psol_binary $pagespeed_libs -lrt -pthread -lm"
+pagespeed_libs="$psol_binary $pagespeed_libs -lrt -pthread -lm -luuid"
 ngx_feature_libs="$pagespeed_libs"
 ngx_feature_test="
 

scripts/build_ngx_pagespeed.sh

@@ -1,11 +1,34 @@
 #!/bin/bash
+#
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 function usage() {
   echo "
 Usage: build_ngx_pagespeed.sh [options]
 
   Installs ngx_pagespeed and its dependencies.  Can optionally build and install
-  nginx as well.
+  nginx as well.  Can be run either as:
+
+     bash <(curl -f -L -sS https://ngxpagespeed.com/install) [options]
+
+  Or:
+
+     git clone git@github.com:pagespeed/ngx_pagespeed.git
+     cd ngx_pagespeed/
+     git checkout <branch>
+     scripts/build_ngx_pagespeed.sh [options]
 
 Options:
   -v, --ngx-pagespeed-version <ngx_pagespeed version>
@@ -14,7 +37,11 @@ Options:
       * latest-stable
       * a version number, such as 1.11.33.4
 
-      If you don't specify a version, defaults to latest-stable.
+      If you don't specify a version, defaults to latest-stable unless --devel
+      is specified, in which case it defaults to master.
+
+      This option doesn't make sense if we're running within an existing
+      ngx_pagespeed checkout.
 
   -n, --nginx-version <nginx version>
       What version of nginx to build.  If not set, this script only prepares the
@@ -36,6 +63,30 @@ Options:
       non-deb non-rpm system, this won't work.  In that case, install the
       dependencies yourself and pass --no-deps-check.
 
+  -s, --psol-from-source
+      Build PSOL from source instead of downloading a pre-built binary module.
+
+  -l, --devel
+      Sets up a development environment in ngx_pagespeed/nginx, building with
+      testing-only dependencies.  Includes --psol-from-source, conflicts with
+      --nginx-version.  Uses a 'git clone' checkout for ngx_pagespeed and nginx
+      instead of downloading a tarball.
+
+  -t, --build-type
+      When building PSOL from source, what to tell it for BUILD_TYPE.  Defaults
+      to 'Release' unless --devel is set in which case it defaults to 'Debug'.
+
+  -y, --assume-yes
+      Assume the answer to all prompts is 'yes, please continue'.  Intended for
+      automated usage, such as buildbots.
+
+  -a, --additional-nginx-configure-arguments
+      When running ./configure for nginx, you may want to specify additional
+      arguments, such as --with-http_ssl_module.  By default this script will
+      pause and prompt you for them, but this option lets you pass them in.  For
+      example, you might do:
+        -a '--with-http_ssl_module --with-cc-opt=\"-I /usr/local/include\"'
+
   -d, --dryrun
       Don't make any changes to the system, just print what changes you
       would have made.
@@ -44,10 +95,34 @@ Options:
       Print this message and exit."
 }
 
+RED=31
+GREEN=32
+YELLOW=33
+function begin_color() {
+  color="$1"
+  echo -e -n "\e[${color}m"
+}
+function end_color() {
+  echo -e -n "\e[0m"
+}
+
+function echo_color() {
+  color="$1"
+  shift
+  begin_color "$color"
+  echo "$@"
+  end_color
+}
+
+function error() {
+  local error_message="$@"
+  echo_color "$RED" -n "Error: " >&2
+  echo "$@" >&2
+}
+
 # Prints an error message and exits with an error code.
 function fail() {
-  local error_message="$@"
+  error "$@"
-  echo "$@" >&2
 
   # Normally I'd use $0 in "usage" here, but since most people will be running
   # this via curl, that wouldn't actually give something useful.
@@ -56,6 +131,11 @@ function fail() {
   exit 1
 }
 
+
+function status() {
+  echo_color "$GREEN" "$@"
+}
+
 # Intended to be called as:
 #   bash <(curl dl.google.com/.../build_ngx_pagespeed.sh) <args>
 
@@ -64,12 +144,19 @@ function fail() {
 # The run function handles exit-status checking for system-changing commands.
 # Additionally, this allows us to easily have a dryrun mode where we don't
 # actually make any changes.
+INITIAL_ENV=$(printenv | sort)
 function run() {
   if "$DRYRUN"; then
-    echo "would run $@"
+    echo_color "$YELLOW" -n "would run"
+    echo " $@"
+    env_differences=$(comm -13 <(echo "$INITIAL_ENV") <(printenv | sort))
+    if [ -n "$env_differences" ]; then
+      echo "  with the following additional environment variables:"
+      echo "$env_differences" | sed 's/^/    /'
+    fi
   else
     if ! "$@"; then
-      echo "Failure running $@, exiting."
+      error "Failure running '$@', exiting."
       exit 1
     fi
   fi
@@ -155,9 +242,9 @@ function install_dependencies() {
     fi
   done
   if [ -n "$missing_dependencies" ]; then
-    echo "Detected that we're missing the following depencencies:"
+    status "Detected that we're missing the following depencencies:"
     echo "  $missing_dependencies"
-    echo "Installing them:"
+    status "Installing them:"
     run sudo $install_pkg_cmd $missing_dependencies
   fi
 }
@@ -176,8 +263,13 @@ function gcc_too_old() {
 }
 
 function continue_or_exit() {
+  if "$ASSUME_YES"; then
+    return
+  fi
+
   local prompt="$1"
-  read -p "$prompt [Y/n] " yn
+  echo_color "$YELLOW" -n "$prompt"
+  read -p " [Y/n] " yn
   if [[ "$yn" == N* || "$yn" == n* ]]; then
     echo "Cancelled."
     exit 0
@@ -217,9 +309,10 @@ function build_ngx_pagespeed() {
     fail "Your version of getopt is too old.  Exiting with no changes made."
   fi
 
-  opts=$(getopt -o v:n:mb:pdh \
+  opts=$(getopt -o v:n:mb:pslt:ya:dh \
     --longoptions ngx-pagespeed-version:,nginx-version:,dynamic-module \
-    --longoptions buildir:,no-deps-check,dryrun,help \
+    --longoptions buildir:,no-deps-check,psol-from-source,devel,build-type: \
+    --longoptions assume-yes,additional-nginx-configure-arguments:,dryrun,help \
     -n "$(basename "$0")" -- "$@")
   if [ $? != 0 ]; then
     usage
@@ -227,10 +320,14 @@ function build_ngx_pagespeed() {
   fi
   eval set -- "$opts"
 
-  NPS_VERSION="latest-stable"
+  NPS_VERSION="DEFAULT"
   NGINX_VERSION=""
   BUILDDIR="$HOME"
   DO_DEPS_CHECK=true
+  PSOL_FROM_SOURCE=false
+  DEVEL=false
+  BUILD_TYPE=""
+  ASSUME_YES=false
   DRYRUN=false
   DYNAMIC_MODULE=false
   while true; do
@@ -253,6 +350,23 @@ function build_ngx_pagespeed() {
       -p | --no-deps-check) shift
         DO_DEPS_CHECK=false
         ;;
+      -s | --psol-from-source) shift
+        PSOL_FROM_SOURCE=true
+        ;;
+      -l | --devel) shift
+        DEVEL=true
+        ;;
+      -t | --build-type) shift
+        BUILD_TYPE="$1"
+        shift
+        ;;
+      -y | --assume-yes) shift
+        ASSUME_YES="true"
+        ;;
+      -a | --additional-nginx-configure-arguments) shift
+        ADDITIONAL_NGINX_CONFIGURE_ARGUMENTS="$1"
+        shift
+        ;;
       -d | --dryrun) shift
         DRYRUN="true"
         ;;
@@ -271,10 +385,58 @@ function build_ngx_pagespeed() {
     esac
   done
 
+  USE_GIT_CHECKOUT="$DEVEL"
+  ALREADY_CHECKED_OUT=false
+  if [ -e PSOL_BINARY_URL ]; then
+    status "Detected that we're running in an existing ngx_pagespeed checkout."
+    USE_GIT_CHECKOUT=true
+    ALREADY_CHECKED_OUT=true
+  fi
+
+  if "$ALREADY_CHECKED_OUT"; then
+    if [ "$NPS_VERSION" != "DEFAULT" ]; then
+      fail \
+"The --ngx-pagespeed-version argument doesn't make sense when running within an existing checkout."
+    fi
+  elif [ "$NPS_VERSION" = "DEFAULT" ]; then
+    if "$DEVEL"; then
+      NPS_VERSION="master"
+    else
+      NPS_VERSION="latest-stable"
+    fi
+  fi
+
   if [ ! -d "$BUILDDIR" ]; then
     fail "Told to build in $BUILDDIR, but that directory doesn't exist."
   fi
 
+  BUILD_NGINX=false
+  if [ -n "$NGINX_VERSION" ]; then
+    BUILD_NGINX=true
+  fi
+
+  if "$DEVEL"; then
+    PSOL_FROM_SOURCE=true
+    BUILD_NGINX=true
+    if [ -n "$NGINX_VERSION" ]; then
+      fail \
+"The --devel argument conflicts with --nginx.  In devel mode we use the version of nginx that's included as a submodule."
+    fi
+    if "$DYNAMIC_MODULE"; then
+      fail "Can't currently build a dynamic module in --devel mode."
+    fi
+  fi
+
+  if "$PSOL_FROM_SOURCE" && [ -z "$BUILD_TYPE" ]; then
+    if "$DEVEL"; then
+      BUILD_TYPE="Debug"
+    else
+      BUILD_TYPE="Release"
+    fi
+  elif [ -n "$BUILD_TYPE" ]; then
+    fail "Setting --build-type requires --psol-from-source or --devel."
+  fi
+
   if [ "$NGINX_VERSION" = "latest" ]; then
     # When this function fails it prints the debugging information needed first
     # to stderr.
@@ -283,8 +445,15 @@ function build_ngx_pagespeed() {
 
   if "$DYNAMIC_MODULE"; then
     # Check that ngx_pagespeed and nginx are recent enough to support dynamic
-    # modules.
+    # modules.  Unfortunately NPS_VERSION might be a tag, in which case we don't
-    if version_older_than "$NPS_VERSION" "1.10.33.5"; then
+    # know.  If it's not a numeric version number, then assume it's recent
+    # enough and if it's not they'll get an ugly compilation error later.
+    # Luckily 1.10.33.5 was a while ago now.
+    #
+    # I'd like to use =~ here, but they changed syntax between v3 and v4 (quotes
+    # moved from mandatory to optional to prohibited).
+    if [[ "${NPS_VERSION#*[^0-9.]}" = "$NPS_VERSION" ]] &&
+         version_older_than "$NPS_VERSION" "1.10.33.5"; then
       fail "
 You're trying to build ngx_pagespeed $NPS_VERSION as a dynamic module, but
 ngx_pagespeed didn't add support for dynamic modules until 1.10.33.5."
@@ -314,16 +483,16 @@ add support for dynamic modules in a way compatible with ngx_pagespeed until
   # Now make sure our dependencies are installed.
   if "$DO_DEPS_CHECK"; then
     if [ -f /etc/debian_version ]; then
-      echo "Detected debian-based distro."
+      status "Detected debian-based distro."
 
       install_dependencies "apt-get install" debian_is_installed \
         "build-essential zlib1g-dev libpcre3 libpcre3-dev unzip"
 
       if gcc_too_old; then
         if [ ! -e /usr/lib/gcc-mozilla/bin/gcc ]; then
-          echo "Detected that gcc is older than 4.8.  Installing gcc-mozilla"
+          status "Detected that gcc is older than 4.8.  Installing gcc-mozilla"
-          echo "which installs gcc-4.8 into /usr/lib/gcc-mozilla/ and doesn't"
+          status "which installs gcc-4.8 into /usr/lib/gcc-mozilla/ and doesn't"
-          echo "affect your global gcc installation."
+          status "affect your global gcc installation."
           run sudo apt-get install gcc-mozilla
         fi
 
@@ -332,7 +501,7 @@ add support for dynamic modules in a way compatible with ngx_pagespeed until
       fi
 
     elif [ -f /etc/redhat-release ]; then
-      echo "Detected redhat-based distro."
+      status "Detected redhat-based distro."
 
       install_dependencies "yum install" redhat_is_installed \
         "gcc-c++ pcre-devel zlib-devel make unzip wget"
@@ -350,9 +519,9 @@ Unexpected major version $redhat_major_version in /etc/redhat-release:
 $(cat /etc/redhat-release) Expected 5 or 6."
           fi
 
-          echo "Detected that gcc is older than 4.8.  Scientific Linux provides"
+          status "Detected that gcc is older than 4.8.  Scientific Linux"
-          echo "a gcc package that installs gcc-4.8 into /opt/ and doesn't"
+          status "provides a gcc package that installs gcc-4.8 into /opt/ and"
-          echo "affect your global gcc installation."
+          status "doesn't affect your global gcc installation."
           slc_key="https://linux.web.cern.ch/linux/scientific6/docs/repository/"
           slc_key+="cern/slc6X/i386/RPM-GPG-KEY-cern"
           slc_key_out="$TEMPDIR/RPM-GPG-KEY-cern"
@@ -378,9 +547,9 @@ This doesn't appear to be a deb-based distro or an rpm-based one.  Not going to
 be able to install dependencies.  Please install dependencies manually and rerun
 with --no-deps-check."
     fi
-    echo "Dependencies are all set."
+    status "Operating system dependencies are all set."
   else
-    echo "Not checking whether dependencies are installed."
+    status "Not checking whether operating system dependencies are installed."
   fi
 
   function delete_if_already_exists() {
@@ -391,7 +560,6 @@ with --no-deps-check."
       if [ ${#directory} -lt 8 ]; then
         fail "
 Not deleting $directory; name is suspiciously short.  Something is wrong."
-        exit 1
       fi
 
       continue_or_exit "OK to delete $directory?"
@@ -399,53 +567,112 @@ Not deleting $directory; name is suspiciously short.  Something is wrong."
     fi
   }
 
-  nps_baseurl="https://github.com/pagespeed/ngx_pagespeed/archive"
   # In general, the zip github builds for tag foo unzips to ngx_pagespeed-foo,
-  # but it looks like they special case vVERSION tags to ngx_pagespeed-VERSION.
+  # but it looks like they special case vVERSION tags to ngx_pagespeed-VERSION
   if [[ "$NPS_VERSION" =~ ^[0-9]*[.][0-9]*[.][0-9]*[.][0-9]*$ ]]; then
-    # We've been given a numeric version number.  This has an associated tag in
+    # We've been given a numeric version number.  This has an associated tag
-    # the form vVERSION-beta.
+    # in the form vVERSION-beta.
-    nps_url_fname="v${NPS_VERSION}-beta"
+    tag_name="v${NPS_VERSION}-beta"
     nps_downloaded_fname="ngx_pagespeed-${NPS_VERSION}-beta"
   else
     # We've been given a tag name, like latest-beta.  Download that directly.
-    nps_url_fname="$NPS_VERSION"
+    tag_name="$NPS_VERSION"
     nps_downloaded_fname="ngx_pagespeed-${NPS_VERSION}"
   fi
 
-  nps_downloaded="$TEMPDIR/$nps_downloaded_fname.zip"
+  install_dir="this-only-makes-sense-in-devel-mode"
-  run wget "$nps_baseurl/$nps_url_fname.zip" -O "$nps_downloaded"
+  if "$USE_GIT_CHECKOUT"; then
-  nps_module_dir="$BUILDDIR/$nps_downloaded_fname"
+    # We're either doing a --devel build, or someone is running us from an
-  delete_if_already_exists "$nps_module_dir"
+    # existing git checkout.
-  echo "Extracting ngx_pagespeed..."
+    nps_module_dir="$PWD"
-  run unzip -q "$nps_downloaded" -d "$BUILDDIR"
+    install_dir="$nps_module_dir"
-  run cd "$nps_module_dir"
+    if "$ALREADY_CHECKED_OUT"; then
-
+      run cd "$nps_module_dir"
-  # Now we need to figure out what precompiled version of PSOL to build
+    else
-  # ngx_pagespeed against.
+      status "Checking out ngx_pagespeed..."
-  if "$DRYRUN"; then
+      run git clone "git@github.com:pagespeed/ngx_pagespeed.git" \
-    psol_url="https://psol.example.com/cant-get-psol-version-in-dry-run.tar.gz"
+                    "$nps_module_dir"
-  elif [ -e PSOL_BINARY_URL ]; then
+      run cd "$nps_module_dir"
-    # Releases after 1.11.33.4 there is a PSOL_BINARY_URL file that tells us
+      run git checkout "$tag_name"
-    # where to look.
+    fi
-    psol_url="$(cat PSOL_BINARY_URL)"
+    submodules_dir="$nps_module_dir/testing-dependencies"
-    if [[ "$psol_url" != https://* ]]; then
+    if "$DEVEL"; then
-      fail "Got bad psol binary location information: $psol_url"
+      status "Downloading dependencies..."
+      run git submodule update --init --recursive
+      if [[ "$CONTINUOUS_INTEGRATION" != true ]]; then
+        status "Switching submodules over to git protocol."
+        # This lets us push to github by public key.
+        for config in $(find .git/ -name config) ; do
+          run sed -i s~https://github.com/~git@github.com:~ $config ;
+        done
+      fi
     fi
   else
-    # For past releases we have to grep it from the config file.  The url has
+    nps_baseurl="https://github.com/pagespeed/ngx_pagespeed/archive"
-    # always looked like this, and the config file has contained it since before
+    nps_downloaded="$TEMPDIR/$nps_downloaded_fname.zip"
-    # we started tagging our ngx_pagespeed releases.
+    status "Downloading ngx_pagespeed..."
-    psol_url="$(
+    run wget "$nps_baseurl/$tag_name.zip" -O "$nps_downloaded"
-      grep -o "https://dl.google.com/dl/page-speed/psol/[0-9.]*.tar.gz" config)"
+    nps_module_dir="$BUILDDIR/$nps_downloaded_fname"
-    if [ -z "$psol_url" ]; then
+    delete_if_already_exists "$nps_module_dir"
-      fail "Couldn't find PSOL url in $PWD/config"
+    status "Extracting ngx_pagespeed..."
-    fi
+    run unzip -q "$nps_downloaded" -d "$BUILDDIR"
+    run cd "$nps_module_dir"
   fi
 
-  run wget "$psol_url"
+  MOD_PAGESPEED_DIR=""
-  echo "Extracting PSOL..."
+  PSOL_BINARY=""
-  run tar -xzf $(basename "$psol_url")  # extracts to psol/
+  if "$PSOL_FROM_SOURCE"; then
+    MOD_PAGESPEED_DIR="$PWD/testing-dependencies/mod_pagespeed"
+    git submodule update --init --recursive -- "$MOD_PAGESPEED_DIR"
+    run pushd "$MOD_PAGESPEED_DIR"
+
+    if "$DEVEL"; then
+      if [ ! -d "$HOME/apache2" ]; then
+        run install/build_development_apache.sh 2.2 prefork
+      fi
+      cd devel
+      run make apache_debug_psol
+      PSOL_BINARY="$MOD_PAGESPEED_DIR/out/$BUILD_TYPE/pagespeed_automatic.a"
+    else
+      if "$DO_DEPS_CHECK"; then
+        skip_deps_arg=""
+      else
+        skip_deps_arg="--skip_deps"
+      fi
+
+      run install/build_psol.sh --skip_tests --skip_packaging "$skip_deps_arg"
+      PSOL_BINARY="$MOD_PAGESPEED_DIR/pagespeed/automatic/pagespeed_automatic.a"
+    fi
+    run popd
+  else
+    # Now we need to figure out what precompiled version of PSOL to build
+    # ngx_pagespeed against.
+    if "$DRYRUN"; then
+      psol_url="https://psol.example.com/cant-get-psol-version-in-dry-run.tar.gz"
+    elif [ -e PSOL_BINARY_URL ]; then
+      # Releases after 1.11.33.4 there is a PSOL_BINARY_URL file that tells us
+      # where to look.
+      psol_url="$(scripts/format_binary_url.sh PSOL_BINARY_URL)"
+      if [[ "$psol_url" != https://* ]]; then
+        fail "Got bad psol binary location information: $psol_url"
+      fi
+    else
+      # For past releases we have to grep it from the config file.  The url has
+      # always looked like this, and the config file has contained it since
+      # before we started tagging our ngx_pagespeed releases.
+      psol_url="$(grep -o \
+          "https://dl.google.com/dl/page-speed/psol/[0-9.]*.tar.gz" config)"
+      if [ -z "$psol_url" ]; then
+        fail "Couldn't find PSOL url in $PWD/config"
+      fi
+    fi
+
+    status "Downloading PSOL binary..."
+    run wget "$psol_url"
+
+    status "Extracting PSOL..."
+    run tar -xzf $(basename "$psol_url")  # extracts to psol/
+  fi
 
   if "$DYNAMIC_MODULE"; then
     add_module="--add-dynamic-module=$nps_module_dir"
@@ -454,17 +681,37 @@ Not deleting $directory; name is suspiciously short.  Something is wrong."
   fi
   configure_args=("$add_module" "${extra_flags[@]}")
 
+  if "$DEVEL"; then
+    configure_args=("${configure_args[@]}"
+                    "--prefix=$install_dir/nginx"
+                    "--add-module=$submodules_dir/ngx_cache_purge"
+                    "--add-module=$submodules_dir/ngx_devel_kit"
+                    "--add-module=$submodules_dir/set-misc-nginx-module"
+                    "--add-module=$submodules_dir/headers-more-nginx-module"
+                    "--with-ipv6"
+                    "--with-http_v2_module")
+    if [ "$BUILD_TYPE" = "Debug" ]; then
+      configure_args=("${configure_args[@]}" "--with-debug")
+    fi
+  fi
+
   echo
-  if [ -z "$NGINX_VERSION" ]; then
+  if ! "$BUILD_NGINX"; then
-    # They didn't specify an nginx version, so we're just preparing the
+    # Just prepare the module for them to install.
-    # module for them to install.
+    status "ngx_pagespeed is ready to be built against nginx."
-    echo "ngx_pagespeed is ready to be built against nginx."
+    echo "When running ./configure:"
-    echo "When running ./configure pass in:"
+    if "$PSOL_FROM_SOURCE"; then
-    echo "  $(quote_arguments "${configure_args[@]}")"
+      echo "  Set the following environment variables:"
+      echo "    MOD_PAGESPEED_DIR=$MOD_PAGESPEED_DIR"
+      echo "    PSOL_BINARY=$PSOL_BINARY"
+    fi
+    echo "  Give ./configure the following arguments:"
+    echo "    $(quote_arguments "${configure_args[@]}")"
+    echo
     if [ ${#extra_flags[@]} -eq 0 ]; then
       echo "If this is for integration with an already-built nginx, make sure"
-      echo "to include any other arguments you originally passed to ./configure"
+      echo "to include any other arguments you originally passed to"
-      echo "You can see these with 'nginx -V'."
+      echo "./configure.  You can see these with 'nginx -V'."
     else
       echo "Note: because we need to set $(quote_arguments "${extra_flags[@]}")"
       echo "on this platform, if you want to integrate ngx_pagespeed with an"
@@ -472,60 +719,93 @@ Not deleting $directory; name is suspiciously short.  Something is wrong."
       echo "those flags set."
     fi
   else
-    # Download and build nginx.
+    if "$DEVEL"; then
-    nginx_leaf="nginx-${NGINX_VERSION}.tar.gz"
+      # Use the nginx we loaded as a submodule
-    nginx_fname="$TEMPDIR/$nginx_leaf"
+      nginx_dir="$submodules_dir/nginx"
-    run wget "http://nginx.org/download/$nginx_leaf" -O "$nginx_fname"
+      configure_location="auto"
-    nginx_dir="$BUILDDIR/nginx-${NGINX_VERSION}/"
+    else
-    delete_if_already_exists "$nginx_dir"
+      # Download and build the specified nginx version.
-    echo "Extracting nginx..."
+      nginx_leaf="nginx-${NGINX_VERSION}.tar.gz"
-    run tar -xzf "$nginx_fname" --directory "$BUILDDIR"
+      nginx_fname="$TEMPDIR/$nginx_leaf"
-    "$DRYRUN" || cd "$nginx_dir"
+      status "Downloading nginx..."
+      run wget "http://nginx.org/download/$nginx_leaf" -O "$nginx_fname"
+      nginx_dir="$BUILDDIR/nginx-${NGINX_VERSION}/"
+      delete_if_already_exists "$nginx_dir"
+      status "Extracting nginx..."
+      run tar -xzf "$nginx_fname" --directory "$BUILDDIR"
+      configure_location="."
+    fi
+    run cd "$nginx_dir"
+
+    configure=("$configure_location/configure" "${configure_args[@]}")
+    additional_configure_args=""
+    if [ -z "${ADDITIONAL_NGINX_CONFIGURE_ARGUMENTS+x}" ]; then
+      if ! "$ASSUME_YES"; then
+        echo "About to build nginx.  Do you have any additional ./configure"
+        echo "arguments you would like to set?  For example, if you would like"
+        echo "to build nginx with https support give --with-http_ssl_module"
+        echo "If you don't have any, just press enter."
+        read -p "> " additional_configure_args
+      fi
+    else
+      additional_configure_args="$ADDITIONAL_NGINX_CONFIGURE_ARGUMENTS"
+    fi
 
-    configure=("./configure" "${configure_args[@]}")
-    echo "About to build nginx.  Do you have any additional ./configure"
-    echo "arguments you would like to set?  For example, if you would like"
-    echo "to build nginx with https support give --with-http_ssl_module"
-    echo "If you don't have any, just press enter."
-    read -p "> " additional_configure_args
     if [ -n "$additional_configure_args" ]; then
       # Split additional_configure_args respecting any internal quotation.
       # Otherwise things like --with-cc-opt='-foo -bar' won't work.
       eval additional_configure_args=("$additional_configure_args")
       configure=("${configure[@]}" "${additional_configure_args[@]}")
     fi
+
     echo "About to configure nginx with:"
     echo "   $(quote_arguments "${configure[@]}")"
     continue_or_exit "Does this look right?"
-    run "${configure[@]}"
+    MOD_PAGESPEED_DIR="$MOD_PAGESPEED_DIR" \
+      PSOL_BINARY="$PSOL_BINARY" \
+      run "${configure[@]}"
 
-    continue_or_exit "Build nginx?"
+    if ! "$DEVEL"; then
+      continue_or_exit "Build nginx?"
+    fi
     run make
 
-    continue_or_exit "Install nginx?"
+    if "$DEVEL"; then
-    run sudo make install
+      run make install
 
-    echo
+      status "Nginx installed with ngx_pagespeed, and set up for development."
-    if "$DYNAMIC_MODULE"; then
+      echo "To run tests:"
-      echo "Nginx installed with ngx_pagespeed support available as a"
+      echo "  cd $nps_module_dir"
-      echo "loadable module."
+      echo "  test/run_tests.sh"
       echo
-      echo "To load the ngx_pagespeed module, you'll need to add:"
+      echo "To rebuild after changes:"
-      echo "  load_module \"modules/ngx_pagespeed.so\";"
+      echo "  scripts/rebuild.sh"
-      echo "at the top of your main nginx configuration file."
     else
-      echo "Nginx installed with ngx_pagespeed support compiled-in."
+      continue_or_exit "Install nginx?"
+      run sudo make install
+
+      echo
+      if "$DYNAMIC_MODULE"; then
+        echo "Nginx installed with ngx_pagespeed support available as a"
+        echo "loadable module."
+        echo
+        echo "To load the ngx_pagespeed module, you'll need to add:"
+        echo "  load_module \"modules/ngx_pagespeed.so\";"
+        echo "at the top of your main nginx configuration file."
+      else
+        echo "Nginx installed with ngx_pagespeed support compiled-in."
+      fi
+      echo
+      echo "If this is a new installation you probably need an init script to"
+      echo "manage starting and stopping the nginx service.  See:"
+      echo "  http://wiki.nginx.org/InitScripts"
+      echo
+      echo "You'll also need to configure ngx_pagespeed if you haven't yet:"
+      echo "  https://developers.google.com/speed/pagespeed/module/configuration"
     fi
-    echo
-    echo "If this is a new installation you probably need an init script to"
-    echo "manage starting and stopping the nginx service.  See:"
-    echo "  http://wiki.nginx.org/InitScripts"
-    echo
-    echo "You'll also need to configure ngx_pagespeed if you haven't yet:"
-    echo "  https://developers.google.com/speed/pagespeed/module/configuration"
   fi
   if "$DRYRUN"; then
-    echo "[this was a dry run; your system is unchanged]"
+    echo_color "$YELLOW" "[this was a dry run; your system is unchanged]"
   fi
 }
 

scripts/format_binary_url.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e
+set -u
+
+if [ $# -ne 1 ]; then
+  echo "Usage: $(basename $0) <url_file>" >&2
+  exit 1
+fi
+
+url_file=$1
+
+if [ ! -e "$url_file" ]; then
+  echo "Url file '$url_file' missing!" >&2
+fi
+
+# The size names must match install/build_psol.sh in mod_pagespeed
+if [ "$(uname -m)" = x86_64 ]; then
+  bit_size_name=x64
+else
+  bit_size_name=ia32
+fi
+
+sed -e 's/$BIT_SIZE_NAME\b/'$bit_size_name'/g' $url_file

scripts/pagespeed_libraries_generator.sh

@@ -1,5 +1,19 @@
 #!/bin/bash
 #
+# Copyright 2013 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 # Converts pagespeed_libraries.conf from Apache-format to Nginx-format,
 # supporting the canonicalize_javascript_libraries filter.
 # Inspired by https://github.com/pagespeed/ngx_pagespeed/issues/532

scripts/prepare_psol.sh

@@ -1,94 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2012 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Author: jefftk@google.com (Jeff Kaufman)
-#
-# Usage:
-#   scripts/prepare_psol.sh /path/to/mod_pagespeed/src
-#
-# Creates a directory psol/ and copies headers and a few source files from a
-# depot_tools (glient) checkout into psol/include.  Along with creating
-# binaries, this is a step in preparing psol.tar.gz for distribution.
-#
-
-set -u  # check for undefined variables
-set -e  # exit on failed commands
-
-if [ "$(basename "$PWD")" != "ngx_pagespeed" ] ; then
-  echo "$(basename $0) must be invoked from the ngx_pagespeed directory"
-  exit 1
-fi
-
-if [ $# -ne 1 ] ; then
-  echo "Usage: $(basename $0) /path/to/mod_pagespeed/src"
-  exit 1
-fi
-
-MOD_PAGESPEED_SRC="$1"
-
-if [ "$(basename "$(dirname "$MOD_PAGESPEED_SRC")")/$( \
-        basename "$MOD_PAGESPEED_SRC")" != "mod_pagespeed/src" ] ; then
-  echo "Usage: $(basename $0) /path/to/mod_pagespeed/src"
-  exit 1
-fi
-
-if [ -e psol ] ; then
-  echo "A psol/ directory already exists.  Move it somewhere else and rerun."
-  exit 1
-fi
-mkdir psol/
-# Copy over the .h files, plus a few selected .cc and .c files.
-rsync -arvz "$MOD_PAGESPEED_SRC/" "psol/include/" --prune-empty-dirs \
-  --exclude=".svn" \
-  --exclude=".git" \
-  --include='*.h' \
-  --include='*/' \
-  --include="apr_thread_compatible_pool.cc" \
-  --include="serf_url_async_fetcher.cc" \
-  --include="apr_mem_cache.cc" \
-  --include="key_value_codec.cc" \
-  --include="apr_memcache2.c" \
-  --include="loopback_route_fetcher.cc" \
-  --include="add_headers_fetcher.cc" \
-  --include="console_css_out.cc" \
-  --include="console_out.cc" \
-  --include="dense_hash_map" \
-  --include="dense_hash_set" \
-  --include="sparse_hash_map" \
-  --include="sparse_hash_set" \
-  --include="sparsetable" \
-  --include="mod_pagespeed_console_out.cc" \
-  --include="mod_pagespeed_console_css_out.cc" \
-  --include="mod_pagespeed_console_html_out.cc" \
-  --exclude='*'
-mkdir -p psol/lib/Debug/linux/ia32
-mkdir -p psol/lib/Debug/linux/x64
-mkdir -p psol/lib/Release/linux/ia32
-mkdir -p psol/lib/Release/linux/x64
-
-# Log that we did this.
-SVN_REVISION="$(svn info $MOD_PAGESPEED_SRC | grep Revision | awk '{print $2}')"
-SVN_TAG="$(svn info $MOD_PAGESPEED_SRC | grep URL |  awk -F/ '{print $(NF-1)}')"
-
-DATE="$(date +%F)"
-echo "${DATE}: Copied from mod_pagespeed ${SVN_TAG}@r${SVN_REVISION} ($USER)" \
-  >> psol/include_history.txt
-
-echo
-echo "Output is in psol/include.  Now put binaries in psol/lib following"
-echo "https://github.com/pagespeed/ngx_pagespeed/wiki/Building-Release-Binaries"
-echo "and then you can distribute PSOL."
-

scripts/rebuild.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Usage: scripts/rebuild.sh
+#
+# After building with "scripts/build_ngx_pagespeed.sh --devel", if you make
+# changes to ngx_pagespeed you'll need to rebuild it.  The underlying commands
+# aren't complicated, but it's faster to work if it's automated.
+
+set -e  # exit script if any command returns an error
+set -u  # exit the script if any variable is uninitialized
+
+this_dir="$(dirname $0)"
+cd "$this_dir/.."
+nps_dir="$PWD"
+
+cd "$nps_dir/testing-dependencies/mod_pagespeed/devel"
+make apache_debug_psol
+
+cd "$nps_dir/testing-dependencies/nginx/"
+make
+make install

src/ngx_event_connection.cc

@@ -52,6 +52,12 @@ bool NgxEventConnection::Init(ngx_cycle_t* cycle) {
   } else {
     pipe_read_fd_ = file_descriptors[0];
     pipe_write_fd_ = file_descriptors[1];
+    // Attempt to bump the pipe capacity, because running out of buffer space
+    // can potentially lead up to writes spinning on EAGAIN.
+    // See https://github.com/pagespeed/ngx_pagespeed/issues/1380
+    // TODO(oschaaf): Consider implementing a queueing mechanism for retrying
+    // failed writes.
+    fcntl(pipe_write_fd_, F_SETPIPE_SZ, 200*1024 /* minimal amount of bytes */);
     return true;
   }
   close(file_descriptors[0]);

src/ngx_pagespeed.cc

@@ -84,6 +84,7 @@ extern ngx_module_t ngx_pagespeed;
 
 // Needed for SystemRewriteDriverFactory to use shared memory.
 #define PAGESPEED_SUPPORT_POSIX_SHARED_MEM
+#define NGINX_1_13_4 1013004
 
 net_instaweb::NgxRewriteDriverFactory* active_driver_factory = NULL;
 
@@ -239,6 +240,9 @@ ngx_http_output_body_filter_pt ngx_http_next_body_filter;
 ngx_int_t ps_base_fetch_filter(ngx_http_request_t* r, ngx_chain_t* in) {
   ps_request_ctx_t* ctx = ps_get_request_context(r);
 
+  if (r->header_only) {
+    return NGX_OK;
+  }
   if (ctx == NULL || ctx->base_fetch == NULL) {
     return ngx_http_next_body_filter(r, in);
   }
@@ -749,6 +753,11 @@ ngx_command_t ps_commands[] = {
   ngx_null_command
 };
 
+bool ps_disabled(ps_srv_conf_t* cfg_s) {
+  return cfg_s->server_context == NULL ||
+         cfg_s->server_context->config()->unplugged();
+}
+
 void ps_ignore_sigpipe() {
   struct sigaction act;
   ngx_memzero(&act, sizeof(act));
@@ -881,8 +890,7 @@ char* ps_configure(ngx_conf_t* cf,
   ps_main_conf_t* cfg_m = static_cast<ps_main_conf_t*>(
       ngx_http_cycle_get_module_main_conf(cf->cycle, ngx_pagespeed));
   if (*options == NULL) {
-    *options = new NgxRewriteOptions(
+    *options = new NgxRewriteOptions(cfg_m->driver_factory->thread_system());
-        cfg_m->driver_factory->thread_system());
   }
 
   ProcessScriptVariablesMode script_mode =
@@ -1148,13 +1156,17 @@ char* ps_merge_srv_conf(ngx_conf_t* cf, void* parent, void* child) {
   delete cfg_s->options;
   cfg_s->options = NULL;
 
-  if (cfg_s->server_context->global_options()->enabled()) {
+  if (!cfg_s->server_context->global_options()->unplugged()) {
     // Validate FileCachePath
     GoogleMessageHandler handler;
     const char* file_cache_path =
         cfg_s->server_context->config()->file_cache_path().c_str();
     if (file_cache_path[0] == '\0') {
-      return const_cast<char*>("FileCachePath must be set");
+      if (!cfg_s->server_context->global_options()->standby()) {
+        return const_cast<char*>("FileCachePath must be set, even for standby");
+      } else {
+        return const_cast<char*>("FileCachePath must be set");
+      }
     } else if (!cfg_m->driver_factory->file_system()->IsDir(
         file_cache_path, &handler).is_true()) {
       return const_cast<char*>(
@@ -1191,7 +1203,7 @@ char* ps_merge_loc_conf(ngx_conf_t* cf, void* parent, void* child) {
   ps_srv_conf_t* cfg_s = static_cast<ps_srv_conf_t*>(
       ngx_http_conf_get_module_srv_conf(cf, ngx_pagespeed));
 
-  if (cfg_s->server_context == NULL) {
+  if (ps_disabled(cfg_s)) {
     // Pagespeed options cannot be defined only in location blocks.  There must
     // be at least a single "pagespeed off" in the main block or a server
     // block.
@@ -1698,7 +1710,7 @@ void ps_release_request_context(void* data) {
 RequestRouting::Response ps_route_request(ngx_http_request_t* r) {
   ps_srv_conf_t* cfg_s = ps_get_srv_config(r);
 
-  if (!cfg_s->server_context->global_options()->enabled()) {
+  if (ps_disabled(cfg_s)) {
     // Not enabled for this server block.
     return RequestRouting::kPagespeedDisabled;
   }
@@ -1840,11 +1852,6 @@ ngx_int_t ps_resource_handler(ngx_http_request_t* r,
     options = cfg_s->server_context->global_options();
   }
 
-  if (!options->enabled()) {
-    // Disabled via query params or request headers.
-    return NGX_DECLINED;
-  }
-
   request_context->set_options(options->ComputeHttpOptions());
 
   // ps_determine_options modified url, removing any ModPagespeedFoo=Bar query
@@ -1871,6 +1878,14 @@ ngx_int_t ps_resource_handler(ngx_http_request_t* r,
       response_category == RequestRouting::kGlobalAdmin ||
       response_category == RequestRouting::kCachePurge;
 
+  // Normally if we're disabled we won't handle any requests, but if we're in
+  // standby mode we do want to handle requests for .pagespeed. resources.
+  if (options->unplugged() ||
+      (!options->enabled() && !pagespeed_resource)) {
+    // Disabled via query params or request headers.
+    return NGX_DECLINED;
+  }
+
   if (!html_rewrite) {
     // create request ctx
     CHECK(ctx == NULL);
@@ -2050,8 +2065,8 @@ ngx_int_t ps_resource_handler(ngx_http_request_t* r,
   if (options->in_place_rewriting_enabled() &&
       options->enabled() &&
       options->IsAllowed(url.Spec())) {
-    ps_create_base_fetch(url.Spec(), ctx, request_context, request_headers.release(),
+    ps_create_base_fetch(url.Spec(), ctx, request_context,
-                         kIproLookup, options);
+                         request_headers.release(), kIproLookup, options);
 
     // Do not store driver in request_context, it's not safe.
     RewriteDriver* driver;
@@ -2277,8 +2292,7 @@ ngx_http_output_body_filter_pt ngx_http_next_body_filter;
 // nginx so it can send them out to the browser.
 ngx_int_t ps_html_rewrite_header_filter(ngx_http_request_t* r) {
   ps_srv_conf_t* cfg_s = ps_get_srv_config(r);
-  if (cfg_s->server_context == NULL) {
+  if (ps_disabled(cfg_s)) {
-    // Pagespeed is on for some server block but not this one.
     return ngx_http_next_header_filter(r);
   }
 
@@ -2362,8 +2376,7 @@ ngx_int_t ps_html_rewrite_header_filter(ngx_http_request_t* r) {
 
 ngx_int_t ps_html_rewrite_body_filter(ngx_http_request_t* r, ngx_chain_t* in) {
   ps_srv_conf_t* cfg_s = ps_get_srv_config(r);
-  if (cfg_s->server_context == NULL) {
+  if (ps_disabled(cfg_s)) {
-    // Pagespeed is on for some server block but not this one.
     return ngx_http_next_body_filter(r, in);
   }
 
@@ -2691,8 +2704,7 @@ ngx_int_t ps_simple_handler(ngx_http_request_t* r,
     }
   }
 
-  send_out_headers_and_body(r, response_headers, output);
+  return send_out_headers_and_body(r, response_headers, output);
-  return NGX_OK;
 }
 
 void ps_beacon_handler_helper(ngx_http_request_t* r,
@@ -2887,8 +2899,8 @@ ngx_int_t ps_beacon_handler(ngx_http_request_t* r) {
 // supply it to the user.
 ngx_int_t ps_content_handler(ngx_http_request_t* r) {
   ps_srv_conf_t* cfg_s = ps_get_srv_config(r);
-  if (cfg_s->server_context == NULL) {
+  if (ps_disabled(cfg_s)) {
-    // Pagespeed is on for some server block but not this one.
+    // Pagespeed is not on for this server block.
     return NGX_DECLINED;
   }
 
@@ -3007,13 +3019,17 @@ ngx_int_t ps_preaccess_handler(ngx_http_request_t* r) {
   ph = cmcf->phase_engine.handlers;
 
   i = r->phase_handler;
+
   // move handlers before try_files && content phase
+  // As of nginx 1.13.4 we will be right before the try_files module
+  #if (nginx_version < NGINX_1_13_4)
   while (ph[i + 1].checker != ngx_http_core_try_files_phase &&
          ph[i + 1].checker != ngx_http_core_content_phase) {
     ph[i] = ph[i + 1];
     ph[i].next--;
     i++;
   }
+  #endif
 
   // insert ps phase handler
   ph[i].checker = ps_phase_handler;
@@ -3069,8 +3085,17 @@ ngx_int_t ps_init(ngx_conf_t* cf) {
     ngx_http_core_main_conf_t* cmcf = static_cast<ngx_http_core_main_conf_t*>(
         ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module));
 
+    int phase = NGX_HTTP_PREACCESS_PHASE;
+
+    // As of nginx 1.13.4, try_files has changed.
+    // https://github.com/nginx/nginx/commit/129b06dc5dfab7b4513a4f274b3778cd9b8a6a22
+#if (nginx_version >= NGINX_1_13_4)
+    phase = NGX_HTTP_PRECONTENT_PHASE;
+#endif
+
     ngx_http_handler_pt* h = static_cast<ngx_http_handler_pt*>(
-        ngx_array_push(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers));
+        ngx_array_push(&cmcf->phases[phase].handlers));
+
     if (h == NULL) {
       return NGX_ERROR;
     }

src/ngx_rewrite_options.cc

@@ -192,15 +192,18 @@ RewriteOptions::OptionScope NgxRewriteOptions::GetOptionScope(
 
 RewriteOptions::OptionSettingResult NgxRewriteOptions::ParseAndSetOptions0(
     StringPiece directive, GoogleString* msg, MessageHandler* handler) {
-  if (IsDirective(directive, "on")) {
+  EnabledEnum enabled;
-    set_enabled(RewriteOptions::kEnabledOn);
+  if (!ParseFromString(directive, &enabled)) {
-  } else if (IsDirective(directive, "off")) {
-    set_enabled(RewriteOptions::kEnabledOff);
-  } else if (IsDirective(directive, "unplugged")) {
-    set_enabled(RewriteOptions::kEnabledUnplugged);
-  } else {
     return RewriteOptions::kOptionNameUnknown;
   }
+  if (enabled == RewriteOptions::kEnabledOff) {
+    // In ngx_pagespeed, for historical reasons, we treat "off" as "unplugged".
+    // Also, "off" is deprecated and people should be using "standby" or
+    // "unplugged" now depending on which sense they want.  See comment on
+    // RewriteOptions::EnabledEnum.
+    enabled = RewriteOptions::kEnabledUnplugged;
+  }
+  set_enabled(enabled);
   return RewriteOptions::kOptionOk;
 }
 

test/nginx_system_test.sh

@@ -49,7 +49,11 @@ rm -rf "$TEST_TMP"
 mkdir -p "$TEST_TMP"
 echo TEST_TMP=$TEST_TMP
 
-APACHE_DOC_SRC="$MOD_PAGESPEED_DIR/src/install/"
+if [ -d "$MOD_PAGESPEED_DIR/src" ]; then
+  MOD_PAGESPEED_DIR+="/src"
+fi
+
+APACHE_DOC_SRC="$MOD_PAGESPEED_DIR/install/"
 SERVER_ROOT="$TEST_TMP/root"
 echo SERVER_ROOT=$SERVER_ROOT
 rm -rf "$SERVER_ROOT"
@@ -311,7 +315,7 @@ SERVER_NAME=nginx
 RUN_CONTROLLER_TEST=${RUN_CONTROLLER_TEST:-off}
 
 # run generic system tests
-PAGESPEED_DIR="$MOD_PAGESPEED_DIR/src/pagespeed"
+PAGESPEED_DIR="$MOD_PAGESPEED_DIR/pagespeed"
 SYSTEM_TEST_FILE="$PAGESPEED_DIR/system/system_test.sh"
 REMOTE_CONFIG_TEST_FILE="$PAGESPEED_DIR/system/remote_config_test.sh"
 
@@ -365,6 +369,13 @@ fi
 # wants different ones than we want, so we need to reset our positional args.
 set -- "$PRIMARY_HOSTNAME"
 source $SYSTEM_TEST_FILE
+
+# If we were only asked to run a single test, it ran in SYSTEM_TEST_FILE, so
+# we're done now and should exit.
+if [ -n ${TEST_TO_RUN+x} ]; then
+  check_failures_and_exit
+fi
+
 source $REMOTE_CONFIG_TEST_FILE
 
 # nginx-specific system tests
@@ -1420,7 +1431,7 @@ OUT=$(cat "$ERROR_LOG" \
     | grep -v "\\[error\\].*forbidden.example.com*" \
     | grep -v "\\[error\\].*custom-paths.example.com*" \
     | grep -v "\\[error\\].*bogus_format*" \
-    | grep -v "\\[error\\].*src/install/foo*" \
+    | grep -v "\\[error\\].*/install/foo*" \
     | grep -v "\\[error\\].*recv() failed*" \
     | grep -v "\\[error\\].*send() failed*" \
     | grep -v "\\[error\\].*Invalid url requested: js_defer.js.*" \

test/pagespeed_test.conf.template

@@ -88,6 +88,16 @@ http {
   # Expanded to CentralControllerPort directive when RUN_CONTROLLER_TEST=on
   @@CONTROLLER@@
 
+  server {
+    # This is the default vhost for @@SECONDARY_PORT@@
+    # Your request will land here when you pass in an unknown host.
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name default.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed RewriteLevel CoreFilters;
+  }
+
   server {
     # Sets up a logical home-page server on
     # max-cacheable-content-length.example.com.  This server is only used to
@@ -132,6 +142,42 @@ http {
       "@@SERVER_ROOT@@/mod_pagespeed_example/styles/";
   }
 
+  server {
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name pagespeed-off.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed off;
+    pagespeed EnableFilters collapse_whitespace;
+  }
+
+  server {
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name pagespeed-on.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed on;
+    pagespeed EnableFilters collapse_whitespace;
+  }
+
+  server {
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name pagespeed-standby.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed standby;
+    pagespeed EnableFilters collapse_whitespace;
+  }
+
+  server {
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name pagespeed-unplugged.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed unplugged;
+    pagespeed EnableFilters collapse_whitespace;
+  }
+
   pagespeed UseNativeFetcher "@@NATIVE_FETCHER@@";
   @@RESOLVER@@
 
@@ -1749,6 +1795,25 @@ http {
     pagespeed DisableFilters add_instrumentation;
     pagespeed CriticalImagesBeaconEnabled false;
   }
+  server {
+    pagespeed on;
+    listen @@SECONDARY_PORT@@;
+    listen [::]:@@SECONDARY_PORT@@;
+    server_name image-rewrite-with-flush.example.com;
+    pagespeed FileCachePath "@@FILE_CACHE@@";
+    pagespeed RewriteLevel PassThrough;
+    pagespeed UrlValuedAttribute li data-thumb image;
+    pagespeed EnableFilters core;
+    location ~ \.php$ {
+      fastcgi_param SCRIPT_FILENAME $request_filename;
+      fastcgi_param QUERY_STRING $query_string;
+      fastcgi_param REQUEST_METHOD $request_method;
+      fastcgi_param CONTENT_TYPE $content_type;
+      fastcgi_param CONTENT_LENGTH $content_length;
+      fastcgi_pass 127.0.0.1:9000;
+      fastcgi_buffering off;
+    }
+  }
   server {
     listen @@PRIMARY_PORT@@;
     listen [::]:@@PRIMARY_PORT@@;

test/run_tests.sh

@@ -23,8 +23,15 @@
 # Exits with status 2 if command line args are wrong.
 #
 # Usage:
+#   ./run_tests.sh
+# Or:
 #   ./run_tests.sh /path/to/mod_pagespeed /path/to/nginx/binary
 #
+# If you built ngx_pagespeed with "scripts/build_ngx_pagespeed.sh --devel" then
+# you don't need to pass any arguments to run_tests.sh.  Otherwise, you'll need
+# to tell it where to find a mod_pagespeed checkout (for example html files etc)
+# and the nginx binary to test.
+#
 # By default the test script uses several ports.  If you have a port conflict
 # and need to override one you can do that by setting the relevant environment
 # variable.  For example:
@@ -45,23 +52,28 @@ RUN_TESTS=${RUN_TESTS:-true}
 # true.
 USE_VALGRIND=${USE_VALGRIND:-false}
 
-if [ "$#" -ne 2 ] ; then
+if [ "$#" -eq 0 ]; then
-  echo "Usage: $0 mod_pagespeed_dir nginx_executable"
+  MOD_PAGESPEED_DIR="testing-dependencies/mod_pagespeed/"
+  NGINX_EXECUTABLE="nginx/sbin/nginx"
+elif [ "$#" -eq 2 ]; then
+  MOD_PAGESPEED_DIR="$1"
+  NGINX_EXECUTABLE="$2"
+else
+  echo "Usage: $0 [mod_pagespeed_dir nginx_executable]"
   exit 2
 fi
 
-MOD_PAGESPEED_DIR="$1"
-NGINX_EXECUTABLE="$2"
-
 : ${PRIMARY_PORT:=8050}
 : ${SECONDARY_PORT:=8051}
 : ${CONTROLLER_PORT:=8053}
 : ${RCPORT:=9991}
 : ${PAGESPEED_TEST_HOST:=selfsigned.modpagespeed.com}
+: ${PHP_PORT:=9000}
 
 this_dir="$( cd $(dirname "$0") && pwd)"
 
 function run_test_checking_failure() {
+  "$MOD_PAGESPEED_DIR/install/start_php.sh" "$PHP_PORT"
   USE_VALGRIND="$USE_VALGRIND" \
     PRIMARY_PORT="$PRIMARY_PORT" \
     SECONDARY_PORT="$SECONDARY_PORT" \