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-rw-r--r--vendor/paragonie/random_compat/CHANGELOG.md260
-rw-r--r--vendor/paragonie/random_compat/ERRATA.md34
-rw-r--r--vendor/paragonie/random_compat/LICENSE22
-rw-r--r--vendor/paragonie/random_compat/README.md176
-rw-r--r--vendor/paragonie/random_compat/SECURITY.md108
-rwxr-xr-xvendor/paragonie/random_compat/build-phar.sh5
-rw-r--r--vendor/paragonie/random_compat/composer.json35
-rw-r--r--vendor/paragonie/random_compat/dist/random_compat.phar.pubkey5
-rw-r--r--vendor/paragonie/random_compat/dist/random_compat.phar.pubkey.asc11
-rw-r--r--vendor/paragonie/random_compat/lib/byte_safe_strings.php181
-rw-r--r--vendor/paragonie/random_compat/lib/cast_to_int.php71
-rw-r--r--vendor/paragonie/random_compat/lib/error_polyfill.php42
-rw-r--r--vendor/paragonie/random_compat/lib/random.php197
-rw-r--r--vendor/paragonie/random_compat/lib/random_bytes_com_dotnet.php81
-rw-r--r--vendor/paragonie/random_compat/lib/random_bytes_dev_urandom.php148
-rw-r--r--vendor/paragonie/random_compat/lib/random_bytes_libsodium.php86
-rw-r--r--vendor/paragonie/random_compat/lib/random_bytes_libsodium_legacy.php86
-rw-r--r--vendor/paragonie/random_compat/lib/random_bytes_mcrypt.php76
-rw-r--r--vendor/paragonie/random_compat/lib/random_int.php191
-rw-r--r--vendor/paragonie/random_compat/other/build_phar.php57
20 files changed, 1872 insertions, 0 deletions
diff --git a/vendor/paragonie/random_compat/CHANGELOG.md b/vendor/paragonie/random_compat/CHANGELOG.md
new file mode 100644
index 00000000..247deace
--- /dev/null
+++ b/vendor/paragonie/random_compat/CHANGELOG.md
@@ -0,0 +1,260 @@
+### Version 2.0.2 - 2016-04-03
+
+Added a consistency check (discovered by Taylor Hornby in his
+[PHP encryption library](https://github.com/defuse/php-encryption)). It
+wasn't likely causing any trouble for us.
+
+### Version 2.0.1 - 2016-03-18
+
+Update comment in random.php
+
+### Version 2.0.0 - 2016-03-18
+
+Due to downstream errors, the OpenSSL removal now belongs in version
+2.0.0.
+
+### Version 1.3.1 - 2016-03-18
+
+* Add more possible values to `open_baseir` check.
+
+### Version 1.3.0 - 2016-03-17
+
+* Removed `openssl_random_pseudo_bytes()` entirely. If you are using
+ random_compat in PHP on a Unix-like OS but cannot access
+ `/dev/urandom`, version 1.3+ will throw an `Exception`. If you want to
+ trust OpenSSL, feel free to write your own fallback code. e.g.
+
+ ```php
+ try {
+ $bytes = random_bytes(32);
+ } catch (Exception $ex) {
+ $strong = false;
+ $bytes = openssl_random_pseudo_bytes(32, $strong);
+ if (!$strong) {
+ throw $ex;
+ }
+ }
+ ```
+
+### Version 1.2.2 - 2016-03-11
+
+* To prevent applications from hanging, if `/dev/urandom` is not
+ accessible to PHP, skip mcrypt (which just fails before giving OpenSSL
+ a chance and was morally equivalent to not offering OpenSSL at all).
+
+### Version 1.2.1 - 2016-02-29
+
+* PHP 5.6.10 - 5.6.12 will hang when mcrypt is used on Unix-based operating
+ systems ([PHP bug 69833](https://bugs.php.net/bug.php?id=69833)). If you are
+ running one of these versions, please upgrade (or make sure `/dev/urandom` is
+ readable) otherwise you're relying on OpenSSL.
+
+### Version 1.2.0 - 2016-02-05
+
+* Whitespace and other cosmetic changes
+* Added a changelog.
+* We now ship with a command line utility to build a PHP Archive from the
+ command line.
+
+ Every time we publish a new release, we will also upload a .phar
+ to Github. Our public key is signed by our GPG key.
+
+### Version 1.1.6 - 2016-01-29
+
+* Eliminate `open_basedir` warnings by detecting this configuration setting.
+ (Thanks [@oucil](https://github.com/oucil) for reporting this.)
+* Added install instructions to the README.
+* Documentation cleanup (there is, in fact, no `MCRYPT_CREATE_IV` constant, I
+ meant to write `MCRYPT_DEV_URANDOM`)
+
+### Version 1.1.5 - 2016-01-06
+
+Prevent fatal errors on platforms with older versions of libsodium.
+
+### Version 1.1.4 - 2015-12-10
+
+Thanks [@narfbg](https://github.com/narfbg) for [critiquing the previous patch](https://github.com/paragonie/random_compat/issues/79#issuecomment-163590589)
+and suggesting a fix.
+
+### Version 1.1.3 - 2015-12-09
+
+The test for COM in disabled_classes is now case-insensitive.
+
+### Version 1.1.2 - 2015-12-09
+
+Don't instantiate COM if it's a disabled class. Removes the E_WARNING on Windows.
+
+### Version 1.1.1 - 2015-11-30
+
+Fix a performance issue with `/dev/urandom` buffering.
+
+### Version 1.1.0 - 2015-11-09
+
+Fix performance issues with ancient versions of PHP on Windows, but dropped
+support for PHP < 5.4.1 without mcrypt on Windows 7+ in the process. Since this
+ is a BC break, semver dictates a minor version bump.
+
+### Version 1.0.10 - 2015-10-23
+
+* Avoid a performance killer with OpenSSL on Windows PHP 5.3.0 - 5.3.3 that was
+ affecting [WordPress users](https://core.trac.wordpress.org/ticket/34409).
+* Use `$var = null` instead of `unset($var)` to avoid triggering the garbage
+ collector and slowing things down.
+
+### Version 1.0.9 - 2015-10-20
+
+There is an outstanding issue `mcrypt_create_iv()` and PHP 7's `random_bytes()`
+on Windows reported by [@nicolas-grekas](https://github.com/nicolas-grekas) caused by `proc_open()` and environment
+variable handling (discovered by Appveyor when developing Symfony).
+
+Since the break is consistent, it's not our responsibility to fix it, but we
+should fail the same way PHP 7 will (i.e. throw an `Exception` rather than raise
+an error and then throw an `Exception`).
+
+### Version 1.0.8 - 2015-10-18
+
+* Fix usability issues with Windows (`new COM('CAPICOM.Utilities.1')` is not
+ always available).
+* You can now test all the possible drivers by running `phpunit.sh each` in the
+ `tests` directory.
+
+### Version 1.0.7 - 2015-10-16
+
+Several large integer handling bugfixes were contributed by [@oittaa](https://github.com/oittaa).
+
+### Version 1.0.6 - 2015-10-15
+
+Don't let the version number fool you, this was a pretty significant change.
+
+1. Added support for ext-libsodium, if it exists on the system. This is morally
+ equivalent to adding `getrandom(2)` support without having to expose the
+ syscall interface in PHP-land.
+2. Relaxed open_basedir restrictions. In previous versions, if open_basedir was
+ set, PHP wouldn't even try to read from `/dev/urandom`. Now it will still do
+ so if you can.
+3. Fixed integer casting inconsistencies between random_compat and PHP 7.
+4. Handle edge cases where an integer overflow turns one of the parameters into
+ a float.
+
+One change that we discussed was making `random_bytes()` and `random_int()`
+strict typed; meaning you could *only* pass integers to either function. While
+most veteran programmers are probably only doing this already (we strongly
+encourage it), it wouldn't be consistent with how these functions behave in PHP
+7. Please use these functions responsibly.
+
+We've had even more of the PHP community involved in this release; the
+contributors list has been updated. If I forgot anybody, I promise you it's not
+because your contributions (either code or ideas) aren't valued, it's because
+I'm a bit overloaded with information at the moment. Please let me know
+immediately and I will correct my oversight.
+
+Thanks everyone for helping make random_compat better.
+
+### Version 1.0.5 - 2015-10-08
+
+Got rid of the methods in the `Throwable` interface, which was causing problems
+on PHP 5.2. While we would normally not care about 5.2 (since [5.4 and earlier are EOL'd](https://secure.php.net/supported-versions.php)),
+we do want to encourage widespread adoption (e.g. [Wordpress](https://core.trac.wordpress.org/ticket/28633)).
+
+### Version 1.0.4 - 2015-10-02
+
+Removed redundant `if()` checks, since `lib/random.php` is the entrypoint people
+should use.
+
+### Version 1.0.3 - 2015-10-02
+
+This release contains bug fixes contributed by the community.
+
+* Avoid a PHP Notice when PHP is running without the mbstring extension
+* Use a compatible version of PHPUnit for testing on older versions of PHP
+
+Although none of these bugs were outright security-affecting, updating ASAP is
+still strongly encouraged.
+
+### Version 1.0.2 - 2015-09-23
+
+Less strict input validation on `random_int()` parameters. PHP 7's `random_int()`
+accepts strings and floats that look like numbers, so we should too.
+
+Thanks [@dd32](https://github.com/@dd32) for correcting this oversight.
+
+### Version 1.0.1 - 2015-09-10
+
+Instead of throwing an Exception immediately on insecure platforms, only do so
+when `random_bytes()` is invoked.
+
+### Version 1.0.0 - 2015-09-07
+
+Our API is now stable and forward-compatible with the CSPRNG features in PHP 7
+(as of 7.0.0 RC3).
+
+A lot of great people have contributed their time and expertise to make this
+compatibility library possible. That this library has reached a stable release
+is more a reflection on the community than it is on PIE.
+
+We are confident that random_compat will serve as the simplest and most secure
+CSPRNG interface available for PHP5 projects.
+
+### Version 0.9.7 (pre-release) - 2015-09-01
+
+An attempt to achieve compatibility with Error/TypeError in the RFC.
+
+This should be identical to 1.0.0 sans any last-minute changes or performance enhancements.
+
+### Version 0.9.6 (pre-release) - 2015-08-06
+
+* Split the implementations into their own file (for ease of auditing)
+* Corrected the file type check after `/dev/urandom` has been opened (thanks
+ [@narfbg](https://github.com/narfbg) and [@jedisct1](https://github.com/jedisct1))
+
+### Version 0.9.5 (pre-release) - 2015-07-31
+
+* Validate that `/dev/urandom` is a character device
+ * Reported by [@lokdnet](https://twitter.com/lokdnet)
+ * Investigated by [@narfbg](https://github.com/narfbg) and [frymaster](http://stackoverflow.com/users/1226810/frymaster) on [StackOverflow](http://stackoverflow.com/q/31631066/2224584)
+* Remove support for `/dev/arandom` which is an old OpenBSD feature, thanks [@jedisct1](https://github.com/jedisct1)
+* Prevent race conditions on the `filetype()` check, thanks [@jedisct1](https://github.com/jedisct1)
+* Buffer file reads to 8 bytes (performance optimization; PHP defaults to 8192 bytes)
+
+### Version 0.9.4 (pre-release) - 2015-07-27
+
+* Add logic to verify that `/dev/arandom` and `/dev/urandom` are actually devices.
+* Some clean-up in the comments
+
+### Version 0.9.3 (pre-release) - 2015-07-22
+
+Unless the Exceptions change to PHP 7 fails, this should be the last pre-release
+version. If need be, we'll make one more pre-release version with compatible
+behavior.
+
+Changes since 0.9.2:
+
+* Prioritize `/dev/arandom` and `/dev/urandom` over mcrypt.
+[@oittaa](https://github.com/oittaa) removed the -1 and +1 juggling on `$range` calculations for `random_int()`
+* Whitespace and comment clean-up, plus better variable names
+* Actually put a description in the composer.json file...
+
+### Version 0.9.2 (pre-release) - 2015-07-16
+
+* Consolidated `$range > PHP_INT_MAX` logic with `$range <= PHP_INT_MAX` (thanks
+ [@oittaa](https://github.com/oittaa) and [@CodesInChaos](https://github.com/CodesInChaos))
+* `tests/phpunit.sh` now also runs the tests with `mbstring.func_overload` and
+ `open_basedir`
+* Style consistency, whitespace cleanup, more meaningful variable names
+
+### Version 0.9.1 (pre-release) - 2015-07-09
+
+* Return random values on integer ranges > `PHP_INT_MAX` (thanks [@CodesInChaos](https://github.com/CodesInChaos))
+* Determined CSPRNG preference:
+ 1. `mcrypt_create_iv()` with `MCRYPT_DEV_URANDOM`
+ 2. `/dev/arandom`
+ 3. `/dev/urandom`
+ 4. `openssl_random_pseudo_bytes()`
+* Optimized backend selection (thanks [@lt](https://github.com/lt))
+* Fix #3 (thanks [@scottchiefbaker](https://github.com/scottchiefbaker))
+
+### Version 0.9.0 (pre-release) - 2015-07-07
+
+This should be a sane polyfill for PHP 7's `random_bytes()` and `random_int()`.
+We hesitate to call it production ready until it has received sufficient third
+party review. \ No newline at end of file
diff --git a/vendor/paragonie/random_compat/ERRATA.md b/vendor/paragonie/random_compat/ERRATA.md
new file mode 100644
index 00000000..0561630d
--- /dev/null
+++ b/vendor/paragonie/random_compat/ERRATA.md
@@ -0,0 +1,34 @@
+## Errata (Design Decisions)
+
+### Reasoning Behind the Order of Preferred Random Data Sources
+
+The order is:
+
+ 1. `libsodium if available`
+ 2. `fread() /dev/urandom if available`
+ 3. `mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM)`
+ 4. `COM('CAPICOM.Utilities.1')->GetRandom()`
+
+If libsodium is available, we get random data from it. This is the preferred
+method on all OSes, but libsodium is not very widely installed, so other
+fallbacks are available.
+
+Next, we read `/dev/urandom` (if it exists). This is the preferred file to read
+for random data for cryptographic purposes for BSD and Linux.
+
+Despite [strongly urging people not to use mcrypt in their projects](https://paragonie.com/blog/2015/05/if-you-re-typing-word-mcrypt-into-your-code-you-re-doing-it-wrong),
+because libmcrypt is abandonware and the API puts too much responsibility on the
+implementor, we prioritize `mcrypt_create_iv()` with `MCRYPT_DEV_URANDOM` above
+the remaining implementations.
+
+The reason is simple: `mcrypt_create_iv()` is part of PHP's `ext/mcrypt` code,
+and is not part `libmcrypt`. It actually does the right thing:
+
+ * On Unix-based operating systems, it reads from `/dev/urandom`, which unlike `/dev/random`
+ is the sane and correct thing to do.
+ * On Windows, it reads from `CryptGenRandom`, which is an exclusively Windows
+ way to get random bytes.
+
+If we're on Windows and don't have access to `mcrypt`, we use `CAPICOM.Utilities.1`.
+
+As of random_compat 1.3, we no longer fall through to OpenSSL.
diff --git a/vendor/paragonie/random_compat/LICENSE b/vendor/paragonie/random_compat/LICENSE
new file mode 100644
index 00000000..45c7017d
--- /dev/null
+++ b/vendor/paragonie/random_compat/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Paragon Initiative Enterprises
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/vendor/paragonie/random_compat/README.md b/vendor/paragonie/random_compat/README.md
new file mode 100644
index 00000000..80560862
--- /dev/null
+++ b/vendor/paragonie/random_compat/README.md
@@ -0,0 +1,176 @@
+# random_compat
+
+[![Build Status](https://travis-ci.org/paragonie/random_compat.svg?branch=master)](https://travis-ci.org/paragonie/random_compat)
+[![Scrutinizer](https://scrutinizer-ci.com/g/paragonie/random_compat/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/paragonie/random_compat)
+
+PHP 5.x polyfill for `random_bytes()` and `random_int()` created and maintained
+by [Paragon Initiative Enterprises](https://paragonie.com).
+
+Although this library *should* function in earlier versions of PHP, we will only
+consider issues relevant to [supported PHP versions](https://secure.php.net/supported-versions.php).
+**If you are using an unsupported version of PHP, please upgrade as soon as possible.**
+
+## Important
+
+Although this library has been examined by some security experts in the PHP
+community, there will always be a chance that we overlooked something. Please
+ask your favorite trusted hackers to hammer it for implementation errors and
+bugs before even thinking about deploying it in production.
+
+**Do not use the master branch, use a [stable release](https://github.com/paragonie/random_compat/releases/latest).**
+
+For the background of this library, please refer to our blog post on
+[Generating Random Integers and Strings in PHP](https://paragonie.com/blog/2015/07/how-safely-generate-random-strings-and-integers-in-php).
+
+### Usability Notice
+
+If PHP cannot safely generate random data, this library will throw an `Exception`.
+It will never fall back to insecure random data. If this keeps happening, upgrade
+to a newer version of PHP immediately.
+
+## Installing
+
+**With [Composer](https://getcomposer.org):**
+
+ composer require paragonie/random_compat
+
+**Signed PHP Archive:**
+
+As of version 1.2.0, we also ship an ECDSA-signed PHP Archive with each stable
+release on Github.
+
+1. Download [the `.phar`, `.phar.pubkey`, and `.phar.pubkey.asc`](https://github.com/paragonie/random_compat/releases/latest) files.
+2. (**Recommended** but not required) Verify the PGP signature of `.phar.pubkey`
+ (contained within the `.asc` file) using the [PGP public key for Paragon Initiative Enterprises](https://paragonie.com/static/gpg-public-key.txt).
+3. Extract both `.phar` and `.phar.pubkey` files to the same directory.
+4. `require_once "/path/to/random_compat.phar";`
+5. When a new version is released, you only need to replace the `.phar` file;
+ the `.pubkey` will not change (unless our signing key is ever compromised).
+
+**Manual Installation:**
+
+1. Download [a stable release](https://github.com/paragonie/random_compat/releases/latest).
+2. Extract the files into your project.
+3. `require_once "/path/to/random_compat/lib/random.php";`
+
+## Usage
+
+This library exposes the [CSPRNG functions added in PHP 7](https://secure.php.net/manual/en/ref.csprng.php)
+for use in PHP 5 projects. Their behavior should be identical.
+
+### Generate a string of random bytes
+
+```php
+try {
+ $string = random_bytes(32);
+} catch (TypeError $e) {
+ // Well, it's an integer, so this IS unexpected.
+ die("An unexpected error has occurred");
+} catch (Error $e) {
+ // This is also unexpected because 32 is a reasonable integer.
+ die("An unexpected error has occurred");
+} catch (Exception $e) {
+ // If you get this message, the CSPRNG failed hard.
+ die("Could not generate a random string. Is our OS secure?");
+}
+
+var_dump(bin2hex($string));
+// string(64) "5787c41ae124b3b9363b7825104f8bc8cf27c4c3036573e5f0d4a91ad2eeac6f"
+```
+
+### Generate a random integer between two given integers (inclusive)
+
+```php
+try {
+ $int = random_int(0,255);
+
+} catch (TypeError $e) {
+ // Well, it's an integer, so this IS unexpected.
+ die("An unexpected error has occurred");
+} catch (Error $e) {
+ // This is also unexpected because 0 and 255 are both reasonable integers.
+ die("An unexpected error has occurred");
+} catch (Exception $e) {
+ // If you get this message, the CSPRNG failed hard.
+ die("Could not generate a random string. Is our OS secure?");
+}
+
+var_dump($int);
+// int(47)
+```
+
+### Exception handling
+
+When handling exceptions and errors you must account for differences between
+PHP 5 and PHP7.
+
+The differences:
+
+* Catching `Error` works, so long as it is caught before `Exception`.
+* Catching `Exception` has different behavior, without previously catching `Error`.
+* There is *no* portable way to catch all errors/exceptions.
+
+#### Our recommendation
+
+**Always** catch `Error` before `Exception`.
+
+#### Example
+
+```php
+try {
+ return random_int(1, $userInput);
+} catch (TypeError $e) {
+ // This is okay, so long as `Error` is caught before `Exception`.
+ throw new Exception('Please enter a number!');
+} catch (Error $e) {
+ // This is required, if you do not need to do anything just rethrow.
+ throw $e;
+} catch (Exception $e) {
+ // This is optional and maybe omitted if you do not want to handle errors
+ // during generation.
+ throw new InternalServerErrorException(
+ 'Oops, our server is bust and cannot generate any random data.',
+ 500,
+ $e
+ );
+}
+```
+
+## Contributors
+
+This project would not be anywhere near as excellent as it is today if it
+weren't for the contributions of the following individuals:
+
+* [@AndrewCarterUK (Andrew Carter)](https://github.com/AndrewCarterUK)
+* [@asgrim (James Titcumb)](https://github.com/asgrim)
+* [@bcremer (Benjamin Cremer)](https://github.com/bcremer)
+* [@CodesInChaos (Christian Winnerlein)](https://github.com/CodesInChaos)
+* [@chriscct7 (Chris Christoff)](https://github.com/chriscct7)
+* [@cs278 (Chris Smith)](https://github.com/cs278)
+* [@cweagans (Cameron Eagans)](https://github.com/cweagans)
+* [@dd32 (Dion Hulse)](https://github.com/dd32)
+* [@geggleto (Glenn Eggleton)](https://github.com/geggleto)
+* [@ircmaxell (Anthony Ferrara)](https://github.com/ircmaxell)
+* [@jedisct1 (Frank Denis)](https://github.com/jedisct1)
+* [@juliangut (Julián Gutiérrez)](https://github.com/juliangut)
+* [@kelunik (Niklas Keller)](https://github.com/kelunik)
+* [@lt (Leigh)](https://github.com/lt)
+* [@MasonM (Mason Malone)](https://github.com/MasonM)
+* [@mmeyer2k (Michael M)](https://github.com/mmeyer2k)
+* [@narfbg (Andrey Andreev)](https://github.com/narfbg)
+* [@nicolas-grekas (Nicolas Grekas)](https://github.com/nicolas-grekas)
+* [@oittaa](https://github.com/oittaa)
+* [@oucil (Kevin Farley)](https://github.com/oucil)
+* [@redragonx (Stephen Chavez)](https://github.com/redragonx)
+* [@rchouinard (Ryan Chouinard)](https://github.com/rchouinard)
+* [@SammyK (Sammy Kaye Powers)](https://github.com/SammyK)
+* [@scottchiefbaker (Scott Baker)](https://github.com/scottchiefbaker)
+* [@skyosev (Stoyan Kyosev)](https://github.com/skyosev)
+* [@stof (Christophe Coevoet)](https://github.com/stof)
+* [@teohhanhui (Teoh Han Hui)](https://github.com/teohhanhui)
+* [@tom-- (Tom Worster)](https://github.com/tom--)
+* [@tsyr2ko](https://github.com/tsyr2ko)
+* [@trowski (Aaron Piotrowski)](https://github.com/trowski)
+* [@twistor (Chris Lepannen)](https://github.com/twistor)
+* [@voku (Lars Moelleken)](https://github.com/voku)
+* [@xabbuh (Christian Flothmann)](https://github.com/xabbuh)
diff --git a/vendor/paragonie/random_compat/SECURITY.md b/vendor/paragonie/random_compat/SECURITY.md
new file mode 100644
index 00000000..8f731b38
--- /dev/null
+++ b/vendor/paragonie/random_compat/SECURITY.md
@@ -0,0 +1,108 @@
+# An Invitation to Security Researchers
+
+Every company says they take security "very seriously." Rather than bore anyone
+with banal boilerplate, here are some quick answers followed by detailed
+elaboration. If you have any questions about our policies, please email them to
+`scott@paragonie.com`.
+
+## Quick Answers
+
+* There is no compulsion to disclose vulnerabilities privately, but we
+ appreciate a head's up.
+* `security@paragonie.com` will get your reports to the right person. Our GPG
+ fingerprint, should you decide to encrypt your report, is
+ `7F52 D5C6 1D12 55C7 3136 2E82 6B97 A1C2 8264 04DA`.
+
+* **YES**, we will reward security researchers who disclose vulnerabilities in
+ our software.
+* In most cases, **No Proof-of-Concept Required.**
+
+## How to Report a Security Bug to Paragon Initiative Enterprises
+
+### There is no compulsion to disclose privately.
+
+We believe vulnerability disclosure style is a personal choice and enjoy working
+with a diverse community. We understand and appreciate the importance of Full
+Disclosure in the history and practice of security research.
+
+We would *like* to know about high-severity bugs before they become public
+knowledge, so we can fix them in a timely manner, but **we do not believe in
+threatening researchers or trying to enforce vulnerability embargoes**.
+
+Ultimately, if you discover a security-affecting vulnerability, what you do with
+it is your choice. We would like to work with people, and to celebrate and
+reward their skill, experience, and dedication. We appreciate being informed of
+our mistakes so we can learn from them and build a better product. Our goal is
+to empower the community.
+
+### Where to Send Security Vulnerabilities
+
+Our security email address is `security@paragonie.com`. Also feel free to open a
+new issue on Github if you want to disclose publicly.
+
+```
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG
+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+=xJPW
+-----END PGP PUBLIC KEY BLOCK-----
+```
+
+### We Will Reward Security Researchers
+
+**This process has not been formalized; nor have dollar amounts been
+discussed.**
+
+However, if you report a valid security-affecting bug, we will compensate you
+for the time spent finding the vulnerability and reward you for being a good
+neighbor.
+
+#### What does a "valid" bug mean?
+
+There are two sides to this:
+
+1. Some have spammed projects with invalid bug reports hoping to collect
+ bounties for pressing a button and running an automated analysis tool. This
+ is not cool.
+2. There is a potential for the developers of a project to declare all security
+ bug reports as invalid to save money.
+
+Our team members have an established history of reporting vulnerabilities to
+large open source projects. **We aren't in the business of ripping people off.**
+When in doubt, our policy is to err on the side of generosity.
+
+### No Proof-of-Concept Required
+
+We might ask for one if we feel we do not understand some of the details
+pertaining to a specific vulnerability. We certainly appreciate them if you
+include them in your report, but we believe **the burden lies with the developer
+to prove their software *is* secure** rather than with the researcher to prove
+that it isn't.
+
+In our experience, most bugs are simpler to fix than they are to exploit.
+
diff --git a/vendor/paragonie/random_compat/build-phar.sh b/vendor/paragonie/random_compat/build-phar.sh
new file mode 100755
index 00000000..b4a5ba31
--- /dev/null
+++ b/vendor/paragonie/random_compat/build-phar.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+basedir=$( dirname $( readlink -f ${BASH_SOURCE[0]} ) )
+
+php -dphar.readonly=0 "$basedir/other/build_phar.php" $* \ No newline at end of file
diff --git a/vendor/paragonie/random_compat/composer.json b/vendor/paragonie/random_compat/composer.json
new file mode 100644
index 00000000..d363f4c8
--- /dev/null
+++ b/vendor/paragonie/random_compat/composer.json
@@ -0,0 +1,35 @@
+{
+ "name": "paragonie/random_compat",
+ "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+ "keywords": [
+ "csprng",
+ "random",
+ "pseudorandom"
+ ],
+ "license": "MIT",
+ "type": "library",
+ "authors": [
+ {
+ "name": "Paragon Initiative Enterprises",
+ "email": "security@paragonie.com",
+ "homepage": "https://paragonie.com"
+ }
+ ],
+ "support": {
+ "issues": "https://github.com/paragonie/random_compat/issues",
+ "email": "info@paragonie.com",
+ "source": "https://github.com/paragonie/random_compat"
+ },
+ "require": {
+ "php": ">=5.2.0"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "4.*|5.*"
+ },
+ "suggest": {
+ "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+ },
+ "autoload": {
+ "files": ["lib/random.php"]
+ }
+}
diff --git a/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey b/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey
new file mode 100644
index 00000000..eb50ebfc
--- /dev/null
+++ b/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey
@@ -0,0 +1,5 @@
+-----BEGIN PUBLIC KEY-----
+MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAEEd+wCqJDrx5B4OldM0dQE0ZMX+lx1ZWm
+pui0SUqD4G29L3NGsz9UhJ/0HjBdbnkhIK5xviT0X5vtjacF6ajgcCArbTB+ds+p
++h7Q084NuSuIpNb6YPfoUFgC/CL9kAoc
+-----END PUBLIC KEY-----
diff --git a/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey.asc b/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey.asc
new file mode 100644
index 00000000..6a1d7f30
--- /dev/null
+++ b/vendor/paragonie/random_compat/dist/random_compat.phar.pubkey.asc
@@ -0,0 +1,11 @@
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v2.0.22 (MingW32)
+
+iQEcBAABAgAGBQJWtW1hAAoJEGuXocKCZATaJf0H+wbZGgskK1dcRTsuVJl9IWip
+QwGw/qIKI280SD6/ckoUMxKDCJiFuPR14zmqnS36k7N5UNPnpdTJTS8T11jttSpg
+1LCmgpbEIpgaTah+cELDqFCav99fS+bEiAL5lWDAHBTE/XPjGVCqeehyPYref4IW
+NDBIEsvnHPHPLsn6X5jq4+Yj5oUixgxaMPiR+bcO4Sh+RzOVB6i2D0upWfRXBFXA
+NNnsg9/zjvoC7ZW73y9uSH+dPJTt/Vgfeiv52/v41XliyzbUyLalf02GNPY+9goV
+JHG1ulEEBJOCiUD9cE1PUIJwHA/HqyhHIvV350YoEFiHl8iSwm7SiZu5kPjaq74=
+=B6+8
+-----END PGP SIGNATURE-----
diff --git a/vendor/paragonie/random_compat/lib/byte_safe_strings.php b/vendor/paragonie/random_compat/lib/byte_safe_strings.php
new file mode 100644
index 00000000..dec5d306
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/byte_safe_strings.php
@@ -0,0 +1,181 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+if (!function_exists('RandomCompat_strlen')) {
+ if (
+ defined('MB_OVERLOAD_STRING') &&
+ ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING
+ ) {
+ /**
+ * strlen() implementation that isn't brittle to mbstring.func_overload
+ *
+ * This version uses mb_strlen() in '8bit' mode to treat strings as raw
+ * binary rather than UTF-8, ISO-8859-1, etc
+ *
+ * @param string $binary_string
+ *
+ * @throws TypeError
+ *
+ * @return int
+ */
+ function RandomCompat_strlen($binary_string)
+ {
+ if (!is_string($binary_string)) {
+ throw new TypeError(
+ 'RandomCompat_strlen() expects a string'
+ );
+ }
+
+ return mb_strlen($binary_string, '8bit');
+ }
+
+ } else {
+ /**
+ * strlen() implementation that isn't brittle to mbstring.func_overload
+ *
+ * This version just used the default strlen()
+ *
+ * @param string $binary_string
+ *
+ * @throws TypeError
+ *
+ * @return int
+ */
+ function RandomCompat_strlen($binary_string)
+ {
+ if (!is_string($binary_string)) {
+ throw new TypeError(
+ 'RandomCompat_strlen() expects a string'
+ );
+ }
+ return strlen($binary_string);
+ }
+ }
+}
+
+if (!function_exists('RandomCompat_substr')) {
+
+ if (
+ defined('MB_OVERLOAD_STRING')
+ &&
+ ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING
+ ) {
+ /**
+ * substr() implementation that isn't brittle to mbstring.func_overload
+ *
+ * This version uses mb_substr() in '8bit' mode to treat strings as raw
+ * binary rather than UTF-8, ISO-8859-1, etc
+ *
+ * @param string $binary_string
+ * @param int $start
+ * @param int $length (optional)
+ *
+ * @throws TypeError
+ *
+ * @return string
+ */
+ function RandomCompat_substr($binary_string, $start, $length = null)
+ {
+ if (!is_string($binary_string)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): First argument should be a string'
+ );
+ }
+
+ if (!is_int($start)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): Second argument should be an integer'
+ );
+ }
+
+ if ($length === null) {
+ /**
+ * mb_substr($str, 0, NULL, '8bit') returns an empty string on
+ * PHP 5.3, so we have to find the length ourselves.
+ */
+ $length = RandomCompat_strlen($length) - $start;
+ } elseif (!is_int($length)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): Third argument should be an integer, or omitted'
+ );
+ }
+
+ // Consistency with PHP's behavior
+ if ($start === RandomCompat_strlen($binary_string) && $length === 0) {
+ return '';
+ }
+ if ($start > RandomCompat_strlen($binary_string)) {
+ return false;
+ }
+
+ return mb_substr($binary_string, $start, $length, '8bit');
+ }
+
+ } else {
+
+ /**
+ * substr() implementation that isn't brittle to mbstring.func_overload
+ *
+ * This version just uses the default substr()
+ *
+ * @param string $binary_string
+ * @param int $start
+ * @param int $length (optional)
+ *
+ * @throws TypeError
+ *
+ * @return string
+ */
+ function RandomCompat_substr($binary_string, $start, $length = null)
+ {
+ if (!is_string($binary_string)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): First argument should be a string'
+ );
+ }
+
+ if (!is_int($start)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): Second argument should be an integer'
+ );
+ }
+
+ if ($length !== null) {
+ if (!is_int($length)) {
+ throw new TypeError(
+ 'RandomCompat_substr(): Third argument should be an integer, or omitted'
+ );
+ }
+
+ return substr($binary_string, $start, $length);
+ }
+
+ return substr($binary_string, $start);
+ }
+ }
+}
diff --git a/vendor/paragonie/random_compat/lib/cast_to_int.php b/vendor/paragonie/random_compat/lib/cast_to_int.php
new file mode 100644
index 00000000..f441c5d9
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/cast_to_int.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+if (!function_exists('RandomCompat_intval')) {
+
+ /**
+ * Cast to an integer if we can, safely.
+ *
+ * If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX)
+ * (non-inclusive), it will sanely cast it to an int. If you it's equal to
+ * ~PHP_INT_MAX or PHP_INT_MAX, we let it fail as not an integer. Floats
+ * lose precision, so the <= and => operators might accidentally let a float
+ * through.
+ *
+ * @param int|float $number The number we want to convert to an int
+ * @param boolean $fail_open Set to true to not throw an exception
+ *
+ * @return int (or float if $fail_open)
+ *
+ * @throws TypeError
+ */
+ function RandomCompat_intval($number, $fail_open = false)
+ {
+ if (is_numeric($number)) {
+ $number += 0;
+ }
+
+ if (
+ is_float($number)
+ &&
+ $number > ~PHP_INT_MAX
+ &&
+ $number < PHP_INT_MAX
+ ) {
+ $number = (int) $number;
+ }
+
+ if (is_int($number) || $fail_open) {
+ return $number;
+ }
+
+ throw new TypeError(
+ 'Expected an integer.'
+ );
+ }
+}
diff --git a/vendor/paragonie/random_compat/lib/error_polyfill.php b/vendor/paragonie/random_compat/lib/error_polyfill.php
new file mode 100644
index 00000000..57cfefdc
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/error_polyfill.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+if (!class_exists('Error', false)) {
+ // We can't really avoid making this extend Exception in PHP 5.
+ class Error extends Exception
+ {
+
+ }
+}
+
+if (!class_exists('TypeError', false)) {
+ class TypeError extends Error
+ {
+
+ }
+}
diff --git a/vendor/paragonie/random_compat/lib/random.php b/vendor/paragonie/random_compat/lib/random.php
new file mode 100644
index 00000000..a8802597
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random.php
@@ -0,0 +1,197 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * @version 2.0.2
+ * @released 2016-04-03
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+if (!defined('PHP_VERSION_ID')) {
+ // This constant was introduced in PHP 5.2.7
+ $RandomCompatversion = explode('.', PHP_VERSION);
+ define(
+ 'PHP_VERSION_ID',
+ $RandomCompatversion[0] * 10000
+ + $RandomCompatversion[1] * 100
+ + $RandomCompatversion[2]
+ );
+ $RandomCompatversion = null;
+}
+
+if (PHP_VERSION_ID < 70000) {
+
+ if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
+ define('RANDOM_COMPAT_READ_BUFFER', 8);
+ }
+
+ $RandomCompatDIR = dirname(__FILE__);
+
+ require_once $RandomCompatDIR.'/byte_safe_strings.php';
+ require_once $RandomCompatDIR.'/cast_to_int.php';
+ require_once $RandomCompatDIR.'/error_polyfill.php';
+
+ if (!function_exists('random_bytes')) {
+ /**
+ * PHP 5.2.0 - 5.6.x way to implement random_bytes()
+ *
+ * We use conditional statements here to define the function in accordance
+ * to the operating environment. It's a micro-optimization.
+ *
+ * In order of preference:
+ * 1. Use libsodium if available.
+ * 2. fread() /dev/urandom if available (never on Windows)
+ * 3. mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM)
+ * 4. COM('CAPICOM.Utilities.1')->GetRandom()
+ * 5. openssl_random_pseudo_bytes() (absolute last resort)
+ *
+ * See ERRATA.md for our reasoning behind this particular order
+ */
+ if (extension_loaded('libsodium')) {
+ // See random_bytes_libsodium.php
+ if (PHP_VERSION_ID >= 50300 && function_exists('\\Sodium\\randombytes_buf')) {
+ require_once $RandomCompatDIR.'/random_bytes_libsodium.php';
+ } elseif (method_exists('Sodium', 'randombytes_buf')) {
+ require_once $RandomCompatDIR.'/random_bytes_libsodium_legacy.php';
+ }
+ }
+
+ /**
+ * Reading directly from /dev/urandom:
+ */
+ if (DIRECTORY_SEPARATOR === '/') {
+ // DIRECTORY_SEPARATOR === '/' on Unix-like OSes -- this is a fast
+ // way to exclude Windows.
+ $RandomCompatUrandom = true;
+ $RandomCompat_basedir = ini_get('open_basedir');
+
+ if (!empty($RandomCompat_basedir)) {
+ $RandomCompat_open_basedir = explode(
+ PATH_SEPARATOR,
+ strtolower($RandomCompat_basedir)
+ );
+ $RandomCompatUrandom = (array() !== array_intersect(
+ array('/dev', '/dev/', '/dev/urandom'),
+ $RandomCompat_open_basedir
+ ));
+ $RandomCompat_open_basedir = null;
+ }
+
+ if (
+ !function_exists('random_bytes')
+ &&
+ $RandomCompatUrandom
+ &&
+ @is_readable('/dev/urandom')
+ ) {
+ // Error suppression on is_readable() in case of an open_basedir
+ // or safe_mode failure. All we care about is whether or not we
+ // can read it at this point. If the PHP environment is going to
+ // panic over trying to see if the file can be read in the first
+ // place, that is not helpful to us here.
+
+ // See random_bytes_dev_urandom.php
+ require_once $RandomCompatDIR.'/random_bytes_dev_urandom.php';
+ }
+ // Unset variables after use
+ $RandomCompat_basedir = null;
+ } else {
+ $RandomCompatUrandom = false;
+ }
+
+ /**
+ * mcrypt_create_iv()
+ */
+ if (
+ !function_exists('random_bytes')
+ &&
+ PHP_VERSION_ID >= 50307
+ &&
+ extension_loaded('mcrypt')
+ &&
+ (DIRECTORY_SEPARATOR !== '/' || $RandomCompatUrandom)
+ ) {
+ // Prevent this code from hanging indefinitely on non-Windows;
+ // see https://bugs.php.net/bug.php?id=69833
+ if (
+ DIRECTORY_SEPARATOR !== '/' ||
+ (PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
+ ) {
+ // See random_bytes_mcrypt.php
+ require_once $RandomCompatDIR.'/random_bytes_mcrypt.php';
+ }
+ }
+ $RandomCompatUrandom = null;
+
+ if (
+ !function_exists('random_bytes')
+ &&
+ extension_loaded('com_dotnet')
+ &&
+ class_exists('COM')
+ ) {
+ $RandomCompat_disabled_classes = preg_split(
+ '#\s*,\s*#',
+ strtolower(ini_get('disable_classes'))
+ );
+
+ if (!in_array('com', $RandomCompat_disabled_classes)) {
+ try {
+ $RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
+ if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
+ // See random_bytes_com_dotnet.php
+ require_once $RandomCompatDIR.'/random_bytes_com_dotnet.php';
+ }
+ } catch (com_exception $e) {
+ // Don't try to use it.
+ }
+ }
+ $RandomCompat_disabled_classes = null;
+ $RandomCompatCOMtest = null;
+ }
+
+ /**
+ * throw new Exception
+ */
+ if (!function_exists('random_bytes')) {
+ /**
+ * We don't have any more options, so let's throw an exception right now
+ * and hope the developer won't let it fail silently.
+ */
+ function random_bytes($length)
+ {
+ throw new Exception(
+ 'There is no suitable CSPRNG installed on your system'
+ );
+ }
+ }
+ }
+
+ if (!function_exists('random_int')) {
+ require_once $RandomCompatDIR.'/random_int.php';
+ }
+
+ $RandomCompatDIR = null;
+}
diff --git a/vendor/paragonie/random_compat/lib/random_bytes_com_dotnet.php b/vendor/paragonie/random_compat/lib/random_bytes_com_dotnet.php
new file mode 100644
index 00000000..34228254
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_bytes_com_dotnet.php
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Windows with PHP < 5.3.0 will not have the function
+ * openssl_random_pseudo_bytes() available, so let's use
+ * CAPICOM to work around this deficiency.
+ *
+ * @param int $bytes
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+function random_bytes($bytes)
+{
+ try {
+ $bytes = RandomCompat_intval($bytes);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_bytes(): $bytes must be an integer'
+ );
+ }
+
+ if ($bytes < 1) {
+ throw new Error(
+ 'Length must be greater than 0'
+ );
+ }
+
+ $buf = '';
+ $util = new COM('CAPICOM.Utilities.1');
+ $execCount = 0;
+
+ /**
+ * Let's not let it loop forever. If we run N times and fail to
+ * get N bytes of random data, then CAPICOM has failed us.
+ */
+ do {
+ $buf .= base64_decode($util->GetRandom($bytes, 0));
+ if (RandomCompat_strlen($buf) >= $bytes) {
+ /**
+ * Return our random entropy buffer here:
+ */
+ return RandomCompat_substr($buf, 0, $bytes);
+ }
+ ++$execCount;
+ } while ($execCount < $bytes);
+
+ /**
+ * If we reach here, PHP has failed us.
+ */
+ throw new Exception(
+ 'Could not gather sufficient random data'
+ );
+}
diff --git a/vendor/paragonie/random_compat/lib/random_bytes_dev_urandom.php b/vendor/paragonie/random_compat/lib/random_bytes_dev_urandom.php
new file mode 100644
index 00000000..db93b075
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_bytes_dev_urandom.php
@@ -0,0 +1,148 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
+ define('RANDOM_COMPAT_READ_BUFFER', 8);
+}
+
+/**
+ * Unless open_basedir is enabled, use /dev/urandom for
+ * random numbers in accordance with best practices
+ *
+ * Why we use /dev/urandom and not /dev/random
+ * @ref http://sockpuppet.org/blog/2014/02/25/safely-generate-random-numbers
+ *
+ * @param int $bytes
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+function random_bytes($bytes)
+{
+ static $fp = null;
+ /**
+ * This block should only be run once
+ */
+ if (empty($fp)) {
+ /**
+ * We use /dev/urandom if it is a char device.
+ * We never fall back to /dev/random
+ */
+ $fp = fopen('/dev/urandom', 'rb');
+ if (!empty($fp)) {
+ $st = fstat($fp);
+ if (($st['mode'] & 0170000) !== 020000) {
+ fclose($fp);
+ $fp = false;
+ }
+ }
+
+ if (!empty($fp)) {
+ /**
+ * stream_set_read_buffer() does not exist in HHVM
+ *
+ * If we don't set the stream's read buffer to 0, PHP will
+ * internally buffer 8192 bytes, which can waste entropy
+ *
+ * stream_set_read_buffer returns 0 on success
+ */
+ if (function_exists('stream_set_read_buffer')) {
+ stream_set_read_buffer($fp, RANDOM_COMPAT_READ_BUFFER);
+ }
+ if (function_exists('stream_set_chunk_size')) {
+ stream_set_chunk_size($fp, RANDOM_COMPAT_READ_BUFFER);
+ }
+ }
+ }
+
+ try {
+ $bytes = RandomCompat_intval($bytes);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_bytes(): $bytes must be an integer'
+ );
+ }
+
+ if ($bytes < 1) {
+ throw new Error(
+ 'Length must be greater than 0'
+ );
+ }
+
+ /**
+ * This if() block only runs if we managed to open a file handle
+ *
+ * It does not belong in an else {} block, because the above
+ * if (empty($fp)) line is logic that should only be run once per
+ * page load.
+ */
+ if (!empty($fp)) {
+ $remaining = $bytes;
+ $buf = '';
+
+ /**
+ * We use fread() in a loop to protect against partial reads
+ */
+ do {
+ $read = fread($fp, $remaining);
+ if ($read === false) {
+ /**
+ * We cannot safely read from the file. Exit the
+ * do-while loop and trigger the exception condition
+ */
+ $buf = false;
+ break;
+ }
+ /**
+ * Decrease the number of bytes returned from remaining
+ */
+ $remaining -= RandomCompat_strlen($read);
+ $buf .= $read;
+ } while ($remaining > 0);
+
+ /**
+ * Is our result valid?
+ */
+ if ($buf !== false) {
+ if (RandomCompat_strlen($buf) === $bytes) {
+ /**
+ * Return our random entropy buffer here:
+ */
+ return $buf;
+ }
+ }
+ }
+
+ /**
+ * If we reach here, PHP has failed us.
+ */
+ throw new Exception(
+ 'Error reading from source device'
+ );
+}
diff --git a/vendor/paragonie/random_compat/lib/random_bytes_libsodium.php b/vendor/paragonie/random_compat/lib/random_bytes_libsodium.php
new file mode 100644
index 00000000..f802d4e1
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_bytes_libsodium.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * If the libsodium PHP extension is loaded, we'll use it above any other
+ * solution.
+ *
+ * libsodium-php project:
+ * @ref https://github.com/jedisct1/libsodium-php
+ *
+ * @param int $bytes
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+function random_bytes($bytes)
+{
+ try {
+ $bytes = RandomCompat_intval($bytes);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_bytes(): $bytes must be an integer'
+ );
+ }
+
+ if ($bytes < 1) {
+ throw new Error(
+ 'Length must be greater than 0'
+ );
+ }
+
+ /**
+ * \Sodium\randombytes_buf() doesn't allow more than 2147483647 bytes to be
+ * generated in one invocation.
+ */
+ if ($bytes > 2147483647) {
+ $buf = '';
+ for ($i = 0; $i < $bytes; $i += 1073741824) {
+ $n = ($bytes - $i) > 1073741824
+ ? 1073741824
+ : $bytes - $i;
+ $buf .= \Sodium\randombytes_buf($n);
+ }
+ } else {
+ $buf = \Sodium\randombytes_buf($bytes);
+ }
+
+ if ($buf !== false) {
+ if (RandomCompat_strlen($buf) === $bytes) {
+ return $buf;
+ }
+ }
+
+ /**
+ * If we reach here, PHP has failed us.
+ */
+ throw new Exception(
+ 'Could not gather sufficient random data'
+ );
+}
diff --git a/vendor/paragonie/random_compat/lib/random_bytes_libsodium_legacy.php b/vendor/paragonie/random_compat/lib/random_bytes_libsodium_legacy.php
new file mode 100644
index 00000000..44fddbf6
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_bytes_libsodium_legacy.php
@@ -0,0 +1,86 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * If the libsodium PHP extension is loaded, we'll use it above any other
+ * solution.
+ *
+ * libsodium-php project:
+ * @ref https://github.com/jedisct1/libsodium-php
+ *
+ * @param int $bytes
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+function random_bytes($bytes)
+{
+ try {
+ $bytes = RandomCompat_intval($bytes);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_bytes(): $bytes must be an integer'
+ );
+ }
+
+ if ($bytes < 1) {
+ throw new Error(
+ 'Length must be greater than 0'
+ );
+ }
+
+ /**
+ * \Sodium\randombytes_buf() doesn't allow more than 2147483647 bytes to be
+ * generated in one invocation.
+ */
+ if ($bytes > 2147483647) {
+ $buf = '';
+ for ($i = 0; $i < $bytes; $i += 1073741824) {
+ $n = ($bytes - $i) > 1073741824
+ ? 1073741824
+ : $bytes - $i;
+ $buf .= Sodium::randombytes_buf($n);
+ }
+ } else {
+ $buf = Sodium::randombytes_buf($bytes);
+ }
+
+ if ($buf !== false) {
+ if (RandomCompat_strlen($buf) === $bytes) {
+ return $buf;
+ }
+ }
+
+ /**
+ * If we reach here, PHP has failed us.
+ */
+ throw new Exception(
+ 'Could not gather sufficient random data'
+ );
+}
diff --git a/vendor/paragonie/random_compat/lib/random_bytes_mcrypt.php b/vendor/paragonie/random_compat/lib/random_bytes_mcrypt.php
new file mode 100644
index 00000000..7ac9d910
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_bytes_mcrypt.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+/**
+ * Powered by ext/mcrypt (and thankfully NOT libmcrypt)
+ *
+ * @ref https://bugs.php.net/bug.php?id=55169
+ * @ref https://github.com/php/php-src/blob/c568ffe5171d942161fc8dda066bce844bdef676/ext/mcrypt/mcrypt.c#L1321-L1386
+ *
+ * @param int $bytes
+ *
+ * @throws Exception
+ *
+ * @return string
+ */
+function random_bytes($bytes)
+{
+ try {
+ $bytes = RandomCompat_intval($bytes);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_bytes(): $bytes must be an integer'
+ );
+ }
+
+ if ($bytes < 1) {
+ throw new Error(
+ 'Length must be greater than 0'
+ );
+ }
+
+ $buf = @mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM);
+ if (
+ $buf !== false
+ &&
+ RandomCompat_strlen($buf) === $bytes
+ ) {
+ /**
+ * Return our random entropy buffer here:
+ */
+ return $buf;
+ }
+
+ /**
+ * If we reach here, PHP has failed us.
+ */
+ throw new Exception(
+ 'Could not gather sufficient random data'
+ );
+}
diff --git a/vendor/paragonie/random_compat/lib/random_int.php b/vendor/paragonie/random_compat/lib/random_int.php
new file mode 100644
index 00000000..fd3ef87a
--- /dev/null
+++ b/vendor/paragonie/random_compat/lib/random_int.php
@@ -0,0 +1,191 @@
+<?php
+/**
+ * Random_* Compatibility Library
+ * for using the new PHP 7 random_* API in PHP 5 projects
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Paragon Initiative Enterprises
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Fetch a random integer between $min and $max inclusive
+ *
+ * @param int $min
+ * @param int $max
+ *
+ * @throws Exception
+ *
+ * @return int
+ */
+function random_int($min, $max)
+{
+ /**
+ * Type and input logic checks
+ *
+ * If you pass it a float in the range (~PHP_INT_MAX, PHP_INT_MAX)
+ * (non-inclusive), it will sanely cast it to an int. If you it's equal to
+ * ~PHP_INT_MAX or PHP_INT_MAX, we let it fail as not an integer. Floats
+ * lose precision, so the <= and => operators might accidentally let a float
+ * through.
+ */
+
+ try {
+ $min = RandomCompat_intval($min);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_int(): $min must be an integer'
+ );
+ }
+
+ try {
+ $max = RandomCompat_intval($max);
+ } catch (TypeError $ex) {
+ throw new TypeError(
+ 'random_int(): $max must be an integer'
+ );
+ }
+
+ /**
+ * Now that we've verified our weak typing system has given us an integer,
+ * let's validate the logic then we can move forward with generating random
+ * integers along a given range.
+ */
+ if ($min > $max) {
+ throw new Error(
+ 'Minimum value must be less than or equal to the maximum value'
+ );
+ }
+
+ if ($max === $min) {
+ return $min;
+ }
+
+ /**
+ * Initialize variables to 0
+ *
+ * We want to store:
+ * $bytes => the number of random bytes we need
+ * $mask => an integer bitmask (for use with the &) operator
+ * so we can minimize the number of discards
+ */
+ $attempts = $bits = $bytes = $mask = $valueShift = 0;
+
+ /**
+ * At this point, $range is a positive number greater than 0. It might
+ * overflow, however, if $max - $min > PHP_INT_MAX. PHP will cast it to
+ * a float and we will lose some precision.
+ */
+ $range = $max - $min;
+
+ /**
+ * Test for integer overflow:
+ */
+ if (!is_int($range)) {
+
+ /**
+ * Still safely calculate wider ranges.
+ * Provided by @CodesInChaos, @oittaa
+ *
+ * @ref https://gist.github.com/CodesInChaos/03f9ea0b58e8b2b8d435
+ *
+ * We use ~0 as a mask in this case because it generates all 1s
+ *
+ * @ref https://eval.in/400356 (32-bit)
+ * @ref http://3v4l.org/XX9r5 (64-bit)
+ */
+ $bytes = PHP_INT_SIZE;
+ $mask = ~0;
+
+ } else {
+
+ /**
+ * $bits is effectively ceil(log($range, 2)) without dealing with
+ * type juggling
+ */
+ while ($range > 0) {
+ if ($bits % 8 === 0) {
+ ++$bytes;
+ }
+ ++$bits;
+ $range >>= 1;
+ $mask = $mask << 1 | 1;
+ }
+ $valueShift = $min;
+ }
+
+ /**
+ * Now that we have our parameters set up, let's begin generating
+ * random integers until one falls between $min and $max
+ */
+ do {
+ /**
+ * The rejection probability is at most 0.5, so this corresponds
+ * to a failure probability of 2^-128 for a working RNG
+ */
+ if ($attempts > 128) {
+ throw new Exception(
+ 'random_int: RNG is broken - too many rejections'
+ );
+ }
+
+ /**
+ * Let's grab the necessary number of random bytes
+ */
+ $randomByteString = random_bytes($bytes);
+ if ($randomByteString === false) {
+ throw new Exception(
+ 'Random number generator failure'
+ );
+ }
+
+ /**
+ * Let's turn $randomByteString into an integer
+ *
+ * This uses bitwise operators (<< and |) to build an integer
+ * out of the values extracted from ord()
+ *
+ * Example: [9F] | [6D] | [32] | [0C] =>
+ * 159 + 27904 + 3276800 + 201326592 =>
+ * 204631455
+ */
+ $val = 0;
+ for ($i = 0; $i < $bytes; ++$i) {
+ $val |= ord($randomByteString[$i]) << ($i * 8);
+ }
+
+ /**
+ * Apply mask
+ */
+ $val &= $mask;
+ $val += $valueShift;
+
+ ++$attempts;
+ /**
+ * If $val overflows to a floating point number,
+ * ... or is larger than $max,
+ * ... or smaller than $min,
+ * then try again.
+ */
+ } while (!is_int($val) || $val > $max || $val < $min);
+
+ return (int) $val;
+}
diff --git a/vendor/paragonie/random_compat/other/build_phar.php b/vendor/paragonie/random_compat/other/build_phar.php
new file mode 100644
index 00000000..70ef4b2e
--- /dev/null
+++ b/vendor/paragonie/random_compat/other/build_phar.php
@@ -0,0 +1,57 @@
+<?php
+$dist = dirname(__DIR__).'/dist';
+if (!is_dir($dist)) {
+ mkdir($dist, 0755);
+}
+if (file_exists($dist.'/random_compat.phar')) {
+ unlink($dist.'/random_compat.phar');
+}
+$phar = new Phar(
+ $dist.'/random_compat.phar',
+ FilesystemIterator::CURRENT_AS_FILEINFO | \FilesystemIterator::KEY_AS_FILENAME,
+ 'random_compat.phar'
+);
+rename(
+ dirname(__DIR__).'/lib/random.php',
+ dirname(__DIR__).'/lib/index.php'
+);
+$phar->buildFromDirectory(dirname(__DIR__).'/lib');
+rename(
+ dirname(__DIR__).'/lib/index.php',
+ dirname(__DIR__).'/lib/random.php'
+);
+
+/**
+ * If we pass an (optional) path to a private key as a second argument, we will
+ * sign the Phar with OpenSSL.
+ *
+ * If you leave this out, it will produce an unsigned .phar!
+ */
+if ($argc > 1) {
+ if (!@is_readable($argv[1])) {
+ echo 'Could not read the private key file:', $argv[1], "\n";
+ exit(255);
+ }
+ $pkeyFile = file_get_contents($argv[1]);
+
+ $private = openssl_get_privatekey($pkeyFile);
+ if ($private !== false) {
+ $pkey = '';
+ openssl_pkey_export($private, $pkey);
+ $phar->setSignatureAlgorithm(Phar::OPENSSL, $pkey);
+
+ /**
+ * Save the corresponding public key to the file
+ */
+ if (!@is_readable($dist.'/random_compat.phar.pubkey')) {
+ $details = openssl_pkey_get_details($private);
+ file_put_contents(
+ $dist.'/random_compat.phar.pubkey',
+ $details['key']
+ );
+ }
+ } else {
+ echo 'An error occurred reading the private key from OpenSSL.', "\n";
+ exit(255);
+ }
+}