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authorSergey Poznyakoff <gray@gnu.org.ua>2017-05-08 11:12:59 (GMT)
committer Sergey Poznyakoff <gray@gnu.org.ua>2017-05-09 07:13:54 (GMT)
commit6aef53078ec3fdc39dc89316d31616b5fb874b91 (patch) (side-by-side diff)
treec5283b858b41af263ff93b8f793a1c10b5e56de3
downloadvmod-geoip-6aef53078ec3fdc39dc89316d31616b5fb874b91.tar.gz
vmod-geoip-6aef53078ec3fdc39dc89316d31616b5fb874b91.tar.bz2
Initial commit
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-rw-r--r--.gitignore28
-rw-r--r--.gitmodules3
-rw-r--r--AUTHORS1
-rw-r--r--COPYING674
-rw-r--r--Makefile.am30
-rw-r--r--NEWS32
-rw-r--r--README66
m---------acvmod0
-rwxr-xr-xbootstrap9
-rw-r--r--configure.ac54
-rw-r--r--git2chg.awk75
-rw-r--r--src/.gitignore4
-rw-r--r--src/Makefile.am52
-rw-r--r--src/vmod_geoip.c260
-rw-r--r--src/vmod_geoip.vcc49
15 files changed, 1337 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..506e185
--- a/dev/null
+++ b/.gitignore
@@ -0,0 +1,28 @@
+*.a
+*.la
+*.lo
+*.o
+*.tar.*
+*~
+.deps
+.emacs*
+.gdbinit
+.libs
+ABOUT-NLS
+ChangeLog
+INSTALL
+Makefile
+Makefile.in
+TAGS
+aclocal.m4
+autom4te.cache/
+build-aux
+config.h
+config.h.in
+config.log
+config.status
+configure
+core
+libtool
+m4
+stamp-h1
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..00ae21c
--- a/dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "acvmod"]
+ path = acvmod
+ url = git://git.gnu.org.ua/acvmod.git
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..5659e03
--- a/dev/null
+++ b/AUTHORS
@@ -0,0 +1 @@
+Sergey Poznyakoff <gray@gnu.org>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- a/dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
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+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..85b60bc
--- a/dev/null
+++ b/Makefile.am
@@ -0,0 +1,30 @@
+# This file is part of vmod-geoip
+# Copyright (C) 2017 Sergey Poznyakoff
+#
+# Vmod-geoip is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# Vmod-geoip is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with vmod-geoip. If not, see <http://www.gnu.org/licenses/>.
+ACLOCAL_AMFLAGS = -I m4 -I acvmod
+
+SUBDIRS = src
+
+AM_DISTCHECK_CONFIGURE_FLAGS=--without-vmoddir
+
+EXTRA_DIST=git2chg.awk
+
+.PHONY: ChangeLog
+ChangeLog:
+ $(AM_V_GEN)if test -d .git; then \
+ git log --pretty='format:%ct %an <%ae>%n%n%s%n%n%b%n' | \
+ awk -f $(top_srcdir)/git2chg.awk > ChangeLog; \
+ fi
+
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..34d9cd0
--- a/dev/null
+++ b/NEWS
@@ -0,0 +1,32 @@
+Vmod-geoip NEWS -- history of user-visible changes. 2017-05-09
+Copyright (C) 2017 Sergey Poznyakoff
+See the end of file for copying conditions.
+
+Please send Vmod-geoip bug reports to <gray@gnu.org>
+
+Version 0.90 (Git)
+
+Initial release
+
+Copyright information:
+
+Copyright (C) 2017 Sergey Poznyakoff
+
+ Permission is granted to anyone to make or distribute verbatim copies
+ of this document as received, in any medium, provided that the
+ copyright notice and this permission notice are preserved,
+ thus giving the recipient permission to redistribute in turn.
+
+ Permission is granted to distribute modified versions
+ of this document, or of portions of it,
+ under the above conditions, provided also that they
+ carry prominent notices stating who last changed them.
+
+Local variables:
+mode: outline
+paragraph-separate: "[ ]*$"
+eval: (add-hook 'write-file-hooks 'time-stamp)
+time-stamp-start: "changes. "
+time-stamp-format: "%:y-%02m-%02d"
+time-stamp-end: "\n"
+end:
diff --git a/README b/README
new file mode 100644
index 0000000..0e93197
--- a/dev/null
+++ b/README
@@ -0,0 +1,66 @@
+Vmod-geoip README
+Copyright (C) 2017 Sergey Poznyakoff
+See the end of file for copying conditions.
+
+* Overview
+
+This module provides API for using geolocation databases from the VCL
+files.
+
+* Example
+
+ import geoip;
+
+ if (geoip.country_code == "US") {
+ ...
+ }
+
+* Installation
+
+In order to compile the package you need to have Varnish 4.1 source tree and
+libmaxminddb installed.
+
+Supposing that the varnish source tree
+is available under /usr/src/varnish-4.1, run:
+
+ ./configure --with-varnish-source=/usr/src/varnish-4.1
+
+Once configured, do
+
+ make
+
+This will build the module.
+
+Finally, do the following command as root:
+
+ make install
+
+* Documentation
+
+The manual page vmod_geoip(3) will be available after successful
+install.
+
+* Bug reporting
+
+Send bug reports and suggestions to <gray@gnu.org>
+
+
+* Copyright information:
+
+Copyright (C) 2017 Sergey Poznyakoff
+
+ Permission is granted to anyone to make or distribute verbatim copies
+ of this document as received, in any medium, provided that the
+ copyright notice and this permission notice are preserved,
+ thus giving the recipient permission to redistribute in turn.
+
+ Permission is granted to distribute modified versions
+ of this document, or of portions of it,
+ under the above conditions, provided also that they
+ carry prominent notices stating who last changed them.
+
+Local Variables:
+mode: outline
+paragraph-separate: "[ ]*$"
+version-control: never
+End:
diff --git a/acvmod b/acvmod
new file mode 160000
+Subproject f064cf4d7aa1ead1f8607b8b72baf883f015ffc
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 0000000..1c8ddcb
--- a/dev/null
+++ b/bootstrap
@@ -0,0 +1,9 @@
+#!/bin/sh
+for dir in m4 build-aux
+do
+ test -d $dir || mkdir $dir
+done
+git submodule init
+git submodule update
+> ChangeLog
+autoreconf -f -i -s
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..3fa5640
--- a/dev/null
+++ b/configure.ac
@@ -0,0 +1,54 @@
+# This file is part of vmod-geoip -*- autoconf -*-
+# Copyright (C) 2017 Sergey Poznyakoff
+#
+# Vmod-geoip is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# Vmod-geoip is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with vmod-geoip. If not, see <http://www.gnu.org/licenses/>.
+AC_PREREQ(2.69)
+AC_INIT([vmod-geoip], 0.90, [gray@gnu.org])
+AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_SRCDIR(src/vmod_geoip.vcc)
+AM_CONFIG_HEADER(config.h)
+
+AC_CANONICAL_SYSTEM
+AC_LANG(C)
+
+AM_INIT_AUTOMAKE([1.14 gnu tar-ustar silent-rules])
+AM_SILENT_RULES([yes])
+
+AC_GNU_SOURCE
+AC_PROG_CC
+AC_PROG_CC_STDC
+if test "x$ac_cv_prog_cc_c99" = xno; then
+ AC_MSG_ERROR([could not find a C99 compatible compiler])
+fi
+AC_PROG_CPP
+
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_PROG_MAKE_SET
+
+# Checks for header files.
+AC_HEADER_STDC
+AC_CHECK_HEADERS([sys/stdlib.h])
+
+AM_VARNISHAPI
+
+PKG_CHECK_MODULES([MMDB], [libmaxminddb])
+
+AC_CONFIG_FILES([
+ Makefile
+ src/Makefile
+])
+AC_OUTPUT
+
diff --git a/git2chg.awk b/git2chg.awk
new file mode 100644
index 0000000..465b2ce
--- a/dev/null
+++ b/git2chg.awk
@@ -0,0 +1,75 @@
+# This file is part of grecs
+# Copyright (C) 2007-2017 Sergey Poznyakoff
+#
+# Grecs is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# Grecs is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Grecs. If not, see <http://www.gnu.org/licenses/>.
+
+BEGIN {
+ if (since)
+ split(since,since_a,"-")
+}
+
+function timeok(t, a) {
+ if (!since)
+ return 1
+ split(t,a,"-")
+ if (a[1] < since_a[1])
+ return 0
+ if (a[1] > since_a[1])
+ return 1
+ if (a[2] < since_a[2])
+ return 0
+ if (a[2] > since_a[2])
+ return 1
+ return a[3] > since_a[3]
+}
+
+/^[0-9]+ .* +<[^>]+>/ {
+ s = strftime("%F", $1)
+ if (!timeok(s))
+ exit
+ sub(/^[0-9]+ +/,"")
+ if (s == datestr && author == $0)
+ next
+ datestr = s
+ author = $0
+ if (runlen) { runlen = 0; print "" }
+ printf("%s %s\n", datestr, author)
+ next
+}
+/^Signed-off-by:/ { next }
+/^<unknown>$/ { next }
+NF==0 {
+ runlen++
+ next
+}
+{ if (runlen) { runlen = 0; print "" }
+ print "\t" $0 }
+
+END {
+ if (append) {
+ print ""
+ while ((getline < append) > 0) {
+ if (match($0, /^Local *Variables:/))
+ break
+ print
+ }
+ }
+ print "\f"
+ # Make sure Emacs won't recognize this line:
+ print "Local", "Variables:"
+ print "mode: change-log"
+ print "version-control: never"
+ print "buffer-read-only: t"
+ print "End:"
+}
diff --git a/src/.gitignore b/src/.gitignore
new file mode 100644
index 0000000..3ac5cc9
--- a/dev/null
+++ b/src/.gitignore
@@ -0,0 +1,4 @@
+vcc_if.c
+vcc_if.h
+*.rst
+vmod_geoip.3
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..a41c1ed
--- a/dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,52 @@
+# This file is part of vmod-geoip
+# Copyright (C) 2017 Sergey Poznyakoff
+#
+# Vmod-geoip is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# Vmod-geoip is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with vmod-geoip. If not, see <http://www.gnu.org/licenses/>.
+
+AM_CPPFLAGS =\
+ -I$(VARNISHSRC)/include\
+ -I$(VARNISHSRC)/bin/varnishd\
+ -I$(VARNISHSRC)\
+ @MMDB_CFLAGS@
+
+vmoddir = $(VMODDIR)
+vmod_LTLIBRARIES = libvmod_geoip.la
+
+libvmod_geoip_la_LDFLAGS = -module -export-dynamic -avoid-version
+libvmod_geoip_la_LIBADD=@MMDB_LIBS@
+
+libvmod_geoip_la_SOURCES = \
+ vmod_geoip.c
+
+nodist_libvmod_geoip_la_SOURCES = vcc_if.c vcc_if.h
+
+vmod_geoip.lo: vcc_if.h
+
+CLEANFILES = vcc_if.c vcc_if.h *.rst
+
+vmodtool = $(VARNISHSRC)/lib/libvcc/vmodtool.py
+vmodtoolargs = --strict
+vccfile = $(top_srcdir)/src/vmod_geoip.vcc
+
+vcc_if.c vcc_if.h: $(vmodtool) $(vccfile)
+ $(AM_V_GEN)$(PYTHON) $(vmodtool) $(vmodtoolargs) $(vccfile)
+
+EXTRA_DIST = \
+ vmod_geoip.vcc
+
+dist_man_MANS=vmod_geoip.3
+
+vmod_geoip.3: vmod_geoip.man.rst
+ @$(abs_top_srcdir)/build-aux/missing rst2man.py vmod_geoip.man.rst > vmod_geoip.3
+
diff --git a/src/vmod_geoip.c b/src/vmod_geoip.c
new file mode 100644
index 0000000..6ad23e2
--- a/dev/null
+++ b/src/vmod_geoip.c
@@ -0,0 +1,260 @@
+#include <config.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include "vcl.h"
+#include "vrt.h"
+#include "vcc_if.h"
+#include "bin/varnishd/cache/cache.h"
+#include <maxminddb.h>
+#include <assert.h>
+
+#define DEFAULT_DIR "/usr/share/GeoIP"
+#define DEFAULT_FILE "GeoLite2-City.mmdb"
+#define DEFAULT_DATABASE DEFAULT_DIR "/" DEFAULT_FILE
+
+struct geoip_config {
+ char *database;
+};
+
+int
+geoip_event(VRT_CTX, struct vmod_priv *priv, enum vcl_event_e e)
+{
+ if (e == VCL_EVENT_LOAD) {
+ struct geoip_config *conf = calloc(1, sizeof(*conf));
+ AN(conf);
+ priv->priv = conf;
+ }
+ return 0;
+}
+
+void
+vmod_init(VRT_CTX, struct vmod_priv *priv, const char *dir)
+{
+ struct geoip_config *conf = priv->priv;
+ struct stat st;
+ char *name;
+
+ if (stat (dir, &st)) {
+ fprintf (stderr, "geoip.init: can't stat \"%s\": %s\n",
+ dir, strerror (errno));
+ abort ();
+ }
+
+ if (S_ISDIR(st.st_mode)) {
+ size_t dlen = strlen (dir);
+ size_t len;
+
+ if (dir[dlen-1] == '/')
+ dlen--;
+ name = malloc (dlen + 1 + sizeof (DEFAULT_FILE));
+ AN(name);
+ memcpy (name, dir, dlen);
+ name[dlen++] = '/';
+ strcpy (name + dlen, DEFAULT_FILE);
+ } else if (S_ISREG (st.st_mode)) {
+ name = strdup (dir);
+ AN(name);
+ } else {
+ fprintf (stderr, "geoip.init: \"%s\": bad file type\n", dir);
+ abort ();
+ }
+
+ free(conf->database);
+ conf->database = name;
+}
+
+static int
+open_geoip_database(struct geoip_config *conf, MMDB_s *dbptr)
+{
+ char *database = conf->database ? conf->database : DEFAULT_DATABASE;
+ int rc;
+
+ rc = MMDB_open(database, MMDB_MODE_MMAP, dbptr);
+ if (rc != MMDB_SUCCESS) {
+ fprintf(stderr, "can't open database \"%s\": %s\n",
+ database, MMDB_strerror(rc));
+ return -1;
+ }
+ return 0;
+}
+
+static char *
+conv_utf_string (struct ws *ws, MMDB_entry_data_s *dptr)
+{
+ char *retval = WS_Alloc(ws, dptr->data_size + 1);
+ AN(retval);
+ memcpy(retval, dptr->utf8_string, dptr->data_size);
+ retval[dptr->data_size] = 0;
+ return retval;
+}
+
+static char *(*entry_conv[]) (struct ws *, MMDB_entry_data_s *) = {
+ [MMDB_DATA_TYPE_UTF8_STRING] = conv_utf_string
+};
+
+static char *
+lookup_geoip_database(struct ws *ws,
+ MMDB_s *dbfile, VCL_STRING ipstr,
+ char const *pathstr, char **path)
+{
+ MMDB_lookup_result_s result;
+ int gai_error, mmdb_error;
+ int rc;
+ MMDB_entry_data_s entry_data;
+ char *retval;
+
+ result = MMDB_lookup_string(dbfile, ipstr, &gai_error, &mmdb_error);
+ if (gai_error) {
+ fprintf(stderr, "%s %s: GAI %s\n",
+ pathstr, ipstr, gai_strerror(gai_error));
+ return NULL;
+ }
+
+ if (mmdb_error != MMDB_SUCCESS) {
+ fprintf(stderr, "%s %s: MMDB %s\n",
+ pathstr, ipstr, MMDB_strerror(mmdb_error));
+ return NULL;
+ }
+
+ if (!result.found_entry)
+ return NULL;
+
+ rc = MMDB_aget_value(&result.entry, &entry_data, (const char * const* const) path);
+ if (rc != MMDB_SUCCESS) {
+ fprintf(stderr, "%s %s: MMDB_aget_value %s\n",
+ pathstr, ipstr, MMDB_strerror(rc));
+ return NULL;
+ }
+
+ if (!entry_data.has_data)
+ return NULL;
+
+ if (entry_data.type >= 0
+ && entry_data.type <= sizeof (entry_conv) / sizeof (entry_conv[0])
+ && entry_conv[entry_data.type]) {
+ retval = entry_conv[entry_data.type] (ws, &entry_data);
+ } else
+ retval = NULL;
+
+ return retval;
+}
+
+static char **
+split(char const *path)
+{
+ int c = 0;
+ int i, j;
+ char *base;
+ char **retv;
+ char *str;
+
+ c = 1;
+ for (i = 0; path[i]; i++)
+ if (path[i] == '.')
+ c++;
+ base = malloc(i + 1 + (c + 1) * sizeof(char*));
+ AN(base);
+ retv = (char**) base;
+ str = (char*) &retv[c+1];
+ strcpy(str, path);
+
+ i = 0;
+ j = 0;
+ retv[j++] = str;
+ while (str[i]) {
+ if (str[i] == '.') {
+ str[i] = 0;
+ retv[j++] = str + i + 1;
+ }
+ i++;
+ }
+ retv[j] = NULL;
+ return retv;
+}
+
+VCL_STRING
+vmod_get(VRT_CTX, struct vmod_priv *priv, VCL_STRING ipstr, VCL_STRING path)
+{
+ struct geoip_config *conf = priv->priv;
+ MMDB_s dbfile;
+ char *retval = NULL;
+ char **pathv;
+
+ if (open_geoip_database(conf, &dbfile))
+ return NULL;
+ pathv = split(path);
+ retval = lookup_geoip_database(ctx->ws, &dbfile, ipstr, path, pathv);
+ free(pathv);
+ MMDB_close(&dbfile);
+ return retval;
+}
+
+VCL_STRING
+vmod_country_code(VRT_CTX, struct vmod_priv *priv, VCL_STRING ipstr)
+{
+ struct geoip_config *conf = priv->priv;
+ MMDB_s dbfile;
+ char *retval = NULL;
+ static char *country_code_path[] = {
+ "country",
+ "iso_code",
+ NULL
+ };
+
+ if (open_geoip_database(conf, &dbfile))
+ return NULL;
+ retval = lookup_geoip_database(ctx->ws, &dbfile, ipstr,
+ "country.iso_code", country_code_path);
+ MMDB_close(&dbfile);
+ return retval;
+}
+
+VCL_STRING
+vmod_country_name(VRT_CTX, struct vmod_priv *priv, VCL_STRING ipstr)
+{
+ struct geoip_config *conf = priv->priv;
+ MMDB_s dbfile;
+ char *retval = NULL;
+ static char *country_name_path[] = {
+ "country",
+ "names",
+ "en",
+ NULL
+ };
+
+ if (open_geoip_database(conf, &dbfile))
+ return NULL;
+ retval = lookup_geoip_database(ctx->ws, &dbfile, ipstr,
+ "country.names.en",
+ country_name_path);
+ MMDB_close(&dbfile);
+ return retval;
+}
+
+VCL_STRING
+vmod_city_name(VRT_CTX, struct vmod_priv *priv, VCL_STRING ipstr)
+{
+ struct geoip_config *conf = priv->priv;
+ MMDB_s dbfile;
+ char *retval = NULL;
+ static char *city_name_path[] = {
+ "city",
+ "names",
+ "en",
+ NULL
+ };
+
+ if (open_geoip_database(conf, &dbfile))
+ return NULL;
+ retval = lookup_geoip_database(ctx->ws, &dbfile, ipstr,
+ "city.names.en",
+ city_name_path);
+ MMDB_close(&dbfile);
+ return retval;
+}
diff --git a/src/vmod_geoip.vcc b/src/vmod_geoip.vcc
new file mode 100644
index 0000000..5e2c85e
--- a/dev/null
+++ b/src/vmod_geoip.vcc
@@ -0,0 +1,49 @@
+$Module geoip 3 GeoIP support for Varnish Cache
+
+DESCRIPTION
+===========
+
+Provides interface for accessing geolocation information from
+the MaxMind’s GeoIP2 databases.
+
+$Event geoip_event
+$Function VOID init(PRIV_VCL, STRING)
+
+Description
+ By default, all functions operate on the database
+ **/usr/share/GeoIP/GeoLite2-City.mmdb**. This can be changed by
+ calling **geoip.init** from with the full pathname to the database
+ as its argument. Normally, it is done in **vcl_init**. The pathname
+ must exist. If the pathname refers to a directory, **/GeoLite2-City.mmdb**
+ will be appended to it.
+
+$Function STRING get(PRIV_VCL, STRING ip, STRING path)
+
+Description
+ Look up in the database a value described by **path** corresponding to the
+ IP address **ip**. The lookup path must consist of one or more lookup
+ keys separated by dots.
+
+Example
+ ::
+
+ set req.http.X-Country-Code = geoip.get("" + client.ip,
+ "country.name.en");
+
+$Function STRING country_code(PRIV_VCL, STRING ip)
+
+Description
+ Returns the ISO 3166-1 alpha-2 country code corresponding to the **ip**.
+ Equivalent to geoip.get(ip, "country.iso_code").
+
+$Function STRING country_name(PRIV_VCL, STRING ip)
+
+Description
+ Returns the English name of the country corresponding to **ip**.
+ Equivalent to geoip.get(ip, "country.names.en"),
+
+$Function STRING city_name(PRIV_VCL, STRING ip)
+
+Description
+ Returns the name of the city where **ip** is located.
+ Equivalent to geoip.get(ip, "city.names.en").

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