kvazar
/
crawler
mirror of https://github.com/kvazar-network/crawler.git
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implement transaction parser

main
ghost 3 months ago
parent
ee221bb535
commit
ea5c775df3
3 changed files with 277 additions and 14 deletions
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  1. 2
      .gitignore
  2. 3
      README.md
  3. 286
      src/index.php

2
.gitignore vendored
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@ -2,4 +2,4 @@ @@ -2,4 +2,4 @@
/composer.lock
/config.json
/.block
/.state

3
README.md
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@ -10,4 +10,5 @@ @@ -10,4 +10,5 @@
* `cd crawler`
* `cp example/config.json config.json`
* `crontab -e`:`* * * * * php kvazar/crawler/src/index.php`
* drop index: `php kvazar/crawler/src/index.php drop`
* drop index: `php kvazar/crawler/src/index.php drop`
* optimize index: `php kvazar/crawler/src/index.php optimize`

286
src/index.php
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@ -2,7 +2,7 @@ @@ -2,7 +2,7 @@
// Prevent multi-thread execution
$semaphore = sem_get(
crc32(__DIR__), 1
crc32(__FILE__), 1
);
if (false === sem_acquire($semaphore, true))
@ -26,21 +26,21 @@ $config = json_decode( @@ -26,21 +26,21 @@ $config = json_decode(
)
);
// Init block
$block = 0;
// Init current block state
$state = 1;
if (file_exists(__DIR__ . '/../.block'))
if (file_exists(__DIR__ . '/../.state'))
{
$block = (int) file_get_contents(
__DIR__ . '/../.block'
$state = (int) file_get_contents(
__DIR__ . '/../.state'
);
}
else
{
file_put_contents(
__DIR__ . '/../.block',
$block
__DIR__ . '/../.state',
$state
);
}
@ -115,11 +115,27 @@ if (isset($argv[1])) @@ -115,11 +115,27 @@ if (isset($argv[1]))
true
);
file_put_contents(
__DIR__ . '/../.state',
1
);
exit(
_('Index dropped!')
);
break;
// Index optimization request
case 'optimize':
$index->optimize();
exit(
_('Index optimized!')
);
break;
}
}
@ -131,16 +147,262 @@ if (false === $blocks = $kevacoin->getBlockCount()) @@ -131,16 +147,262 @@ if (false === $blocks = $kevacoin->getBlockCount())
);
}
for ($i = $block; $i <= $blocks; $i++)
for ($block = $state; $block <= $blocks; $block++)
{
// Debug progress
echo sprintf(
"%d/%d\r",
$i,
$block,
$blocks
);
// Get block hash
if (!$hash = $kevacoin->getBlockHash($block))
{
exit(
sprintf(
_('Could not receive "%d" block hash!'),
$block
)
);
}
// Get block data
if (!$data = $kevacoin->getBlock($hash))
{
exit(
sprintf(
_('Could not receive "%d" block data by hash "%s"!'),
$block,
$hash
)
);
}
if (!isset($data['tx']))
{
exit(
sprintf(
_('Could not receive tx data in block "%d"!'),
$transaction,
$block
)
);
}
// Process each transaction in block
foreach ((array) $data['tx'] as $transaction)
{
// Validate each transaction
if (!$raw = $kevacoin->getRawTransaction($transaction))
{
exit(
sprintf(
_('Could not receive raw transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
if (empty($raw['txid']))
{
exit(
sprintf(
_('Could not receive txid of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
if (!isset($raw['vout']))
{
exit(
sprintf(
_('Could not receive vout of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
if (empty($raw['time']))
{
exit(
sprintf(
_('Could not receive time of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
if (empty($raw['size']))
{
exit(
sprintf(
_('Could not receive size of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
// Parse transaction data
foreach((array) $raw['vout'] as $vout) {
if (!$vout || empty($vout['scriptPubKey']) || empty($vout['scriptPubKey']['asm']))
{
exit(
sprintf(
_('Invalid vout transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
// Parse space-separated fragments to array
$asm = explode(
' ',
$vout['scriptPubKey']['asm']
);
// Get operation ID required to continue
if (empty($asm[0]))
{
exit(
sprintf(
_('Undefined operation of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
// Detect key / value
switch ($asm[0]) {
case 'OP_KEVA_PUT':
if (empty($asm[1]) || empty($asm[2]) || empty($asm[3]))
{
exit(
sprintf(
_('Undefined namespace or key or value of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
$namespace = \Kvazar\Crypto\Base58::encode(
$asm[1], false, 0, false
);
$key = \Kvazar\Crypto\Kevacoin::decode(
$asm[2]
);
$value = \Kvazar\Crypto\Kevacoin::decode(
$asm[3]
);
break;
case 'OP_KEVA_DELETE':
if (empty($asm[1]) || empty($asm[2]))
{
exit(
sprintf(
_('Undefined namespace or key of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
$namespace = \Kvazar\Crypto\Base58::encode(
$asm[1], false, 0, false
);
$key = \Kvazar\Crypto\Kevacoin::decode(
$asm[2]
);
$value = '';
break;
case 'OP_KEVA_NAMESPACE':
if (empty($asm[1]) || empty($asm[2]))
{
exit(
sprintf(
_('Undefined namespace or value of transaction "%s" in block "%d"!'),
$transaction,
$block
)
);
}
$namespace = \Kvazar\Crypto\Base58::encode(
$asm[1], false, 0, false
);
$key = '_KEVA_NS_';
$value = \Kvazar\Crypto\Kevacoin::decode(
$asm[2]
);
break;
case 'OP_HASH160': // @TODO not in use at this moment
/*
[0] => OP_HASH160
[1] => d03b0c06f8db322a2365e41385f2c8f6f89eebe3
[2] => OP_EQUAL
*/
continue 2;
break;
case 'OP_RETURN': // @TODO not in use at this moment
/*
[0] => OP_RETURN
[1] => aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf9
*/
continue 2;
break;
default:
exit(
sprintf(
_('Undefined operation "%s" of transaction "%s" in block "%d"!'),
$asm[0],
$transaction,
$block
)
);
}
// Add index record @TODO
}
}
// Update current block indexed
file_put_contents(
__DIR__ . '/../.block',
$i
__DIR__ . '/../.state',
$block
);
}
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