Class: OnChain::BlockChain

Inherits:
Object
  • Object
show all
Defined in:
lib/onchain/providers/bitcoind_api.rb,
lib/onchain/block_chain.rb,
lib/onchain/providers/blockr_api.rb,
lib/onchain/providers/insight_api.rb,
lib/onchain/providers/blockchaininfo_api.rb

Overview

This only works with nodes that have addrindex patch applied. i.e. github.com/dexX7/bitcoin

Constant Summary collapse

ALL_SUPPLIERS = 
[ :blockinfo, :insight, :blockr, :bitcoind ]
BALANCE_CACHE_FOR = 
120
API_CACHE_FOR = 
60
SERVICE_DOWN_FOR = 
60
@@cache = 
{}

Class Method Summary collapse

Class Method Details

.bitcoind_address_history(address, network = :bitcoin) ⇒ Object

Get last 20 transactions



7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 7

def bitcoind_address_history(address, network = :bitcoin)
  
  if cache_read(network.to_s + ' history ' + address) == nil  
    result = execute_remote_command('searchrawtransactions ' + address + ' 1 0 20 0', network)
    cache_write(network.to_s + ' history ' + address, result, BALANCE_CACHE_FOR)
  end
  
  result = cache_read(network.to_s + ' history ' + address)
  
  json = JSON.parse result 
  
  return parse_bitcoind_address_tx(address, json, network)
    
end

.bitcoind_get_all_balances(addresses, network = :bitcoin) ⇒ Object 



116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 116

def bitcoind_get_all_balances(addresses, network = :bitcoin)
  
  
  # if first address is missing get them all.
  commands  = []
  if cache_read(network.to_s + ' ' + addresses[0]) == nil
    addresses.each do |address|
      commands << 'getallbalance ' + address + ' 0'
    end
    balances = OnChain::BlockChain.execute_remote_command(commands, :zclassic)
    
    index = 0
    balances.each_line do |line|
      cache_write(network.to_s + ' ' + addresses[index], line.to_f, BALANCE_CACHE_FOR)
      index = index + 1
    end
  end
  
  addresses.each do |address|
    bitcoind_get_balance(address, network)
  end
end

.bitcoind_get_balance(address, network = :bitcoin) ⇒ Object 



99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 99

def bitcoind_get_balance(address, network = :bitcoin)
  
  if cache_read(network.to_s + ' ' + address) == nil
  
    bal = execute_remote_command('getallbalance ' + address + ' 0', network)
    
    cache_write(network.to_s + ' ' + address, bal.to_f, BALANCE_CACHE_FOR)
  end
  
  bal = cache_read(network.to_s + ' ' + address)
  if bal.class == Fixnum
    bal = bal.to_f
  end
  return bal
    
end

.bitcoind_get_history_for_addresses(addresses, network = :bitcoin) ⇒ Object 



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 22

def bitcoind_get_history_for_addresses(addresses, network = :bitcoin)
  
  commands  = []
  if cache_read(network.to_s + ' history ' + addresses[0]) == nil
    addresses.each do |address|
      commands << 'searchrawtransactions ' + address + ' 1 0 20 0'
    end
    histories = OnChain::BlockChain.execute_remote_command(commands, :zclassic)
    
    index = 0
    histories.each_line do |history|
      cache_write(network.to_s + ' history ' + addresses[index], history, BALANCE_CACHE_FOR)
      index = index + 1
    end
  end
  
  history = []
  addresses.each do |address|
    res = bitcoind_address_history(address, network)
    res.each do |r|
      history << r
    end
  end
  return history
end

.bitcoind_get_transaction(txhash, network = :bitcoin) ⇒ Object 



159
160
161
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 159

def bitcoind_get_transaction(txhash, network = :bitcoin)
  return execute_remote_command('getrawtransaction ' + txhash, network)
end

.bitcoind_get_unspent_outs(address, network = :bitcoin) ⇒ Object 



139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 139

def bitcoind_get_unspent_outs(address, network = :bitcoin)
    
  result = execute_remote_command('listallunspent ' + address + ' 1 0', network)
  
  json = JSON.parse result
  
  unspent = []
  
  json.each do |data|
    line = []
    line << data['txid']
    line << data['vout']
    line << data['scriptPubKey']['hex']
    line << (data['amount'].to_f * 100000000).to_i
    unspent << line
  end
  
  return unspent
end

.bitcoind_send_tx(tx_hex, network = :bitcoin) ⇒ Object 



87
88
89
90
91
92
93
94
95
96
97
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 87

def bitcoind_send_tx(tx_hex, network = :bitcoin)
  
  execute_remote_command('sendrawtransaction ' + tx_hex, network)

  mess = 'Sent'
  stat = 'Sent'
  tx_hash = 'Unknown'
  
  ret = "{\"status\":\"#{stat}\",\"data\":\"#{tx_hash}\",\"code\":200,\"message\":\"#{mess}\"}"	
  return JSON.parse(ret)	
end

.block_chain(cmd, address, params = "") ⇒ Object 



135
136
137
138
139
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 135

def block_chain(cmd, address, params = "")
  base_url = "https://blockchain.info/#{cmd}/#{address}?format=json" + params
  
  fetch_response(base_url, true)
end

.blockinfo_address_history(address, network = :bitcoin) ⇒ Object 



4
5
6
7
8
9
10
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 4

def blockinfo_address_history(address, network = :bitcoin)
  
  base_url = "https://blockchain.info/address/#{address}?format=json"
  json = fetch_response(base_url, true)
  
  blockinfo_parse_address_tx(address, json)
end

.blockinfo_get_address_info(address) ⇒ Object 



62
63
64
65
66
67
68
69
70
71
72
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 62

def blockinfo_get_address_info(address)
  
  base = "https://blockchain.info/multiaddr?&simple=true&active=" + address
  
  json = fetch_response(URI::encode(base))
  
  return { received: json[address]['total_received'], 
    balance: json[address]['final_balance'],
    confirmed: json[address]['final_balance'] }
  
end

.blockinfo_get_all_balances(addresses) ⇒ Object 



74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 74

def blockinfo_get_all_balances(addresses)
  base = "https://blockchain.info/multiaddr?&simple=true&active="
  
  addr = get_uncached_addresses(addresses)
  
  if addr.length == 0
    return
  end
  
  addr.each do |address|
    base = base + address + '|'
  end
  
  json = fetch_response(URI::encode(base))
  
  addresses.each do |address|
    bal = json[address]['final_balance'] / 100000000.0
    cache_write(address, bal, BALANCE_CACHE_FOR)
  end
end

.blockinfo_get_balance(address) ⇒ Object 



113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 113

def blockinfo_get_balance(address)
  if cache_read(address) == nil
    json = block_chain('address', address, "&limit=0")
    if json.key?('final_balance')
      bal = json['final_balance'] / 100000000.0
      cache_write(address, bal, BALANCE_CACHE_FOR)
    else
      cache_write(address, 'Error', BALANCE_CACHE_FOR)
    end
  end
  bal = cache_read(address)
  if bal.class == Fixnum
    bal = bal.to_f
  end
  return bal
end

.blockinfo_get_history_for_addresses(addresses, network = :bitcoin) ⇒ Object 



12
13
14
15
16
17
18
19
20
21
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 12

def blockinfo_get_history_for_addresses(addresses, network = :bitcoin)
  history = []
  addresses.each do |address|
    res = blockinfo_address_history(address, network)
    res.each do |r|
      history << r
    end
  end
  return history
end

.blockinfo_get_transaction(txhash) ⇒ Object 



130
131
132
133
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 130

def blockinfo_get_transaction(txhash)
  base = "https://blockchain.info/rawtx/#{txhash}?format=hex"
  return fetch_response(URI::encode(base), false)
end

.blockinfo_get_unspent_outs(address, network = :bitcoin) ⇒ Object 



95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 95

def blockinfo_get_unspent_outs(address, network = :bitcoin)
  base_url = "https://blockchain.info/unspent?active=#{address}"
  json = fetch_response(base_url, true)
  
  unspent = []
  
  json['unspent_outputs'].each do |data|
    line = []
    line << reverse_blockchain_tx(data['tx_hash'])
    line << data['tx_output_n']
    line << data['script']
    line << data['value']
    unspent << line
  end
  
  return unspent
end

.blockinfo_parse_address_tx(address, json) ⇒ Object 



23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 23

def blockinfo_parse_address_tx(address, json)
  
  hist = []
  if json.key?('txs')
    txs = json['txs']
    txs.each do |tx|
      row = {}
      row[:time] = tx["time"]
      row[:addr] = {}
      row[:outs] = {}
      inputs = tx['inputs']
      val = 0
      recv = "Y"
      inputs.each do |input|
        row[:addr][input["prev_out"]["addr"]] = input["prev_out"]["addr"]
        if input["prev_out"]["addr"] == address
          recv = "N"
        end
      end
      tx["out"].each do |out|
        row[:outs][out["addr"]] = out["addr"]
        if recv == "Y" and out["addr"] == address
          val = val + out["value"].to_f / 100000000.0
        elsif recv == "N" and out["addr"] != address
          val = val + out["value"].to_f / 100000000.0
        end
      end
      row[:total] = val
      row[:recv] = recv
      row[:hash] = tx["hash"]
      hist << row
    end
    return hist
  else
    'Error'
  end
  return hist
end

.blockr(cmd, address, network, params = "") ⇒ Object 



178
179
180
181
182
183
 
# File 'lib/onchain/providers/blockr_api.rb', line 178

def blockr(cmd, address, network, params = "")

  base_url = get_url(network) + "#{cmd}/#{address}" + params
  fetch_response(base_url, true)

end

.blockr_address_history(address, network = :bitcoin) ⇒ Object 



11
12
13
14
15
16
 
# File 'lib/onchain/providers/blockr_api.rb', line 11

def blockr_address_history(address, network = :bitcoin)
  
    json = blockr('address/txs', address, network)
    
    return parse_address_tx(address, json, network)
end

.blockr_get_address_info(address, network = :bitcoin) ⇒ Object 



106
107
108
109
110
111
112
113
114
 
# File 'lib/onchain/providers/blockr_api.rb', line 106

def blockr_get_address_info(address, network = :bitcoin)
  
  json = blockr('address/balance', address, network)
  
  return { received: json[address]['total_received'], 
    balance: json[address]['final_balance'],
    confirmed: json[address]['final_balance'] }
  
end

.blockr_get_all_balances(addresses, network = :bitcoin) ⇒ Object 



150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
 
# File 'lib/onchain/providers/blockr_api.rb', line 150

def blockr_get_all_balances(addresses, network = :bitcoin)
  
  addr = get_uncached_addresses(addresses)
  
  if addr.length == 0
    return
  end
  
  base = get_url(network) + "address/balance/"
  
  addr.each do |address|
    base = base + address + ','
  end
  
  json = fetch_response(URI::encode(base))
  
  json['data'].each do |data|
    bal = data['balance'].to_f
    addr = data['address']
    cache_write(addr, bal, BALANCE_CACHE_FOR)
  end
end

.blockr_get_balance(address, network = :bitcoin) ⇒ Object 



93
94
95
96
97
98
99
100
101
102
103
104
 
# File 'lib/onchain/providers/blockr_api.rb', line 93

def blockr_get_balance(address, network = :bitcoin)
  if cache_read(address) == nil
    json = blockr('address/balance', address, network)
    if json.key?('data')
      bal = json['data']['balance'].to_f
      cache_write(address, bal, BALANCE_CACHE_FOR)
    else
      cache_write(address, 'Error', BALANCE_CACHE_FOR)
    end
  end
  return cache_read(address) 
end

.blockr_get_history_for_addresses(addresses, network = :bitcoin) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
 
# File 'lib/onchain/providers/blockr_api.rb', line 18

def blockr_get_history_for_addresses(addresses, network = :bitcoin)
  history = []
  addresses.each do |address|
    res = blockr_address_history(address, network)
    res.each do |r|
      history << r
    end
  end
  return history
end

.blockr_get_transaction(txhash, network = :bitcoin) ⇒ Object 



173
174
175
176
 
# File 'lib/onchain/providers/blockr_api.rb', line 173

def blockr_get_transaction(txhash, network = :bitcoin)
  base = get_url(network) + "tx/raw/" + txhash
  return fetch_response(URI::encode(base))['data']['tx']['hex']
end

.blockr_get_transactions(address, network = :bitcoin) ⇒ Object 



116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
 
# File 'lib/onchain/providers/blockr_api.rb', line 116

def blockr_get_transactions(address, network = :bitcoin)
  base_url = get_url(network) + "address/txs/#{address}"
  json = fetch_response(base_url, true)
  
  unspent = []
  
  json['data']['txs'].each do |data|
    line = []
    line << data['tx']
    line << data['amount'].to_f 
    unspent << line
  end
  
  return unspent
end

.blockr_get_unspent_outs(address, network = :bitcoin) ⇒ Object 



132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
 
# File 'lib/onchain/providers/blockr_api.rb', line 132

def blockr_get_unspent_outs(address, network = :bitcoin)
  base_url = get_url(network) + "address/unspent/#{address}"
  json = fetch_response(base_url, true)
  
  unspent = []
  
  json['data']['unspent'].each do |data|
    line = []
    line << data['tx']
    line << data['n']
    line << data['script']
    line << (data['amount'].to_f * 100000000).to_i
    unspent << line
  end
  
  return unspent
end

.blockr_send_tx(tx_hex, network = :bitcoin) ⇒ Object 



72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
 
# File 'lib/onchain/providers/blockr_api.rb', line 72

def blockr_send_tx(tx_hex, network = :bitcoin)	
  uri = URI.parse(get_url(network) + "tx/push")		
  http = Net::HTTP.new(uri.host, uri.port)		
		
  request = Net::HTTP::Post.new(uri.request_uri)		
  request.body = '{"hex":"' + tx_hex + '"}'		
  response = http.request(request)
  
  res = JSON.parse(response.body)

  mess = res["message"]
  stat = res["status"]
  if stat == 'fail'
    stat = 'failure'
  end
  
  tx_hash = res["data"]
  ret = "{\"status\":\"#{stat}\",\"data\":\"#{tx_hash}\",\"code\":200,\"message\":\"#{mess}\"}"	
  return JSON.parse(ret)
end

.cache_read(key) ⇒ Object 



174
175
176
177
178
179
180
 
# File 'lib/onchain/block_chain.rb', line 174

def cache_read(key)
   # if the API URL exists as a key in cache, we just return it
   # we also make sure the data is fresh
   if @@cache.has_key? key
      return @@cache[key][1] if Time.now-@@cache[key][0] < @@cache[key][2]
   end
end

.cache_write(key, data, max_age = 0) ⇒ Object 



170
171
172
 
# File 'lib/onchain/block_chain.rb', line 170

def cache_write(key, data, max_age=0)
   @@cache[key] = [Time.now, data, max_age]
end

.execute_remote_command(commands, network) ⇒ Object

Run the command via ssh. For this to work you need to create the follwing ENV vars.



165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 165

def execute_remote_command(commands, network)

  host = ENV[network.to_s.upcase + '_HOST']
  username = ENV[network.to_s.upcase + '_USER']
  password = ENV[network.to_s.upcase + '_PASSWORD']
  prefix = ENV[network.to_s.upcase + '_CLI_CMD'] 

  stdout  = ""
  begin
    Net::SSH.start(host, username, 
      :password => password,
      :auth_methods => [ 'password' ],
      :number_of_password_prompts => 0)  do |ssh|
      
      if ! commands.is_a?(Array)
        commands = [commands]
      end
      
      commands.each do |command|
        
        cmdout = ""
        
        ssh.exec! prefix + ' '+ command do |channel, stream, data|
          cmdout << data if stream == :stdout
        end
        
        stdout << cmdout.tr("\n","")
        stdout << "\n"
      end
    end
  rescue Timeout::Error
    return "{ 'error':'Timed out' }"
  rescue Errno::EHOSTUNREACH
    return "{ 'error':'Host unreachable' }"
  rescue Errno::ECONNREFUSED
    return "{ 'error':'Connection refused }"
  rescue Net::SSH::AuthenticationFailed
    return "{ 'error':'Authentication failure' }"
  end
  
  return stdout.chomp
end

.fetch_response(url, do_json = true) ⇒ Object 



182
183
184
185
186
187
188
189
190
191
 
# File 'lib/onchain/block_chain.rb', line 182

def fetch_response(url, do_json=true)
  resp = Net::HTTP.get_response(URI.parse(url))
  data = resp.body

  if do_json
    result = JSON.parse(data)
  else
    data
  end
end

.get_available_suppliers(method_name, network) ⇒ Object 



113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
 
# File 'lib/onchain/block_chain.rb', line 113

def get_available_suppliers(method_name, network)
  available = []
  ALL_SUPPLIERS.each do |supplier|
    if cache_read(supplier.to_s) == nil
      
      if supplier == :blockinfo and ! [:bitcoin].include? network
        next
      end
      
      if supplier == :blockr and ! [:bitcoin, :testnet3].include? network
        next
      end
      
      if supplier == :insight and ! [:bitcoin].include? network
        next
      end
      
      if supplier == :bitcoind and ENV[network.to_s.upcase + '_HOST'] == nil
        next
      end
      
      if supplier == :blockinfo and method_name.to_s == 'send_tx'
        next
      end
      
      if supplier == :blockinfo and method_name.to_s == 'get_transactions'
        next
      end
      
      if supplier == :blockr and network == :bitcoin and method_name.to_s == 'address_history'
        next
      end
      
      if supplier == :blockr and method_name.to_s == 'get_address_info'
        next
      end
      
      if supplier == :insight and method_name.to_s == 'get_address_info'
        next
      end
      
      if supplier == :blockr and network == :bitcoin and method_name.to_s == 'get_history_for_addresses'
        next
      end
      
      available << supplier
    end
  end
  return available
end

.get_balance_satoshi(address, network = :bitcoin) ⇒ Object 



109
110
111
 
# File 'lib/onchain/block_chain.rb', line 109

def get_balance_satoshi(address, network = :bitcoin)
  return (get_balance(address, network).to_f * 100000000).to_i
end

.get_insight_url(network) ⇒ Object 



4
5
6
7
8
9
10
11
 
# File 'lib/onchain/providers/insight_api.rb', line 4

def get_insight_url(network)
  if network == :bitcoin
    return "https://insight.bitpay.com/api/"
  elsif network == :zcash_testnet
    return "https://explorer.testnet.z.cash/api/"
  end
  return "https://test-insight.bitpay.com/api/"
end

.get_uncached_addresses(addresses) ⇒ Object

Given a list of addresses, return those that don’t have balances in the cahce.



68
69
70
71
72
73
74
75
76
 
# File 'lib/onchain/block_chain.rb', line 68

def get_uncached_addresses(addresses)
  ret = []
  addresses.each do |address|
    if cache_read(address) == nil
      ret << address
    end
  end
  return ret
end

.get_unspent_for_amount(addresses, amount_in_satoshi, network = :bitcoin) ⇒ Object 



78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# File 'lib/onchain/block_chain.rb', line 78

def get_unspent_for_amount(addresses, amount_in_satoshi, network = :bitcoin)
  
  unspents = []
  indexes = []
  amount_so_far = 0
  
  addresses.each_with_index do |address, index|

    if amount_so_far >= amount_in_satoshi
      break
    end
    
    unspent_outs = get_unspent_outs(address, network)
    
    unspent_outs.each do |spent|

      unspents << spent
      indexes << index
      
      amount_so_far = amount_so_far + spent[3].to_i
      if amount_so_far >= amount_in_satoshi
        break
      end
    end
  end
  
  change = amount_so_far - amount_in_satoshi 
  return unspents, indexes, change
  
end

.get_url(network) ⇒ Object 



4
5
6
7
8
9
 
# File 'lib/onchain/providers/blockr_api.rb', line 4

def get_url(network)
  if network == :bitcoin
    return "http://btc.blockr.io/api/v1/"
  end
  return "http://tbtc.blockr.io/api/v1/"
end

.insight_address_history(address, network = :bitcoin) ⇒ Object 



13
14
15
16
17
18
19
20
 
# File 'lib/onchain/providers/insight_api.rb', line 13

def insight_address_history(address, network = :bitcoin)
    
  base_url = get_insight_url(network) + "addr/" + address
  json = fetch_response(base_url, true) 
  
  return parse_insight_address_tx(address, json, network)
    
end

.insight_get_all_balances(addresses, network = :bitcoin) ⇒ Object 



116
117
118
119
120
121
 
# File 'lib/onchain/providers/insight_api.rb', line 116

def insight_get_all_balances(addresses, network = :bitcoin)
  
  addresses.each do |address|
    insight_get_balance(address, network)
  end
end

.insight_get_balance(address, network = :bitcoin) ⇒ Object 



103
104
105
106
107
108
109
110
111
112
113
114
 
# File 'lib/onchain/providers/insight_api.rb', line 103

def insight_get_balance(address, network = :bitcoin)
    
  if cache_read(address + network.to_s) == nil
    
    base_url = get_insight_url(network) + "addr/#{address}/balance" 
    bal_string = fetch_response(base_url, false) 
    bal = bal_string.to_i / 100000000.0
    cache_write(address + network.to_s, bal, BALANCE_CACHE_FOR)
  end
  
  return cache_read(address + network.to_s) 
end

.insight_get_history_for_addresses(addresses, network = :bitcoin) ⇒ Object 



22
23
24
25
26
27
28
29
30
31
 
# File 'lib/onchain/providers/insight_api.rb', line 22

def insight_get_history_for_addresses(addresses, network = :bitcoin)
  history = []
  addresses.each do |address|
    res = insight_address_history(address, network)
    res.each do |r|
      history << r
    end
  end
  return history
end

.insight_get_transaction(txhash, network = :bitcoin) ⇒ Object 



142
143
144
145
 
# File 'lib/onchain/providers/insight_api.rb', line 142

def insight_get_transaction(txhash, network = :bitcoin)
  base = get_insight_url(network) + "rawtx/" + txhash
  return fetch_response(URI::encode(base))['rawtx']
end

.insight_get_unspent_outs(address, network = :bitcoin) ⇒ Object 



123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
 
# File 'lib/onchain/providers/insight_api.rb', line 123

def insight_get_unspent_outs(address, network = :bitcoin)
    
  base_url = get_insight_url(network) + "addr/#{address}/utxo"
  json = fetch_response(base_url, true)
  
  unspent = []
  
  json.each do |data|
    line = []
    line << data['txid']
    line << data['vout']
    line << data['scriptPubKey']
    line << (data['amount'].to_f * 100000000).to_i
    unspent << line
  end
  
  return unspent
end

.insight_send_tx(tx_hex, network = :bitcoin) ⇒ Object 



80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
 
# File 'lib/onchain/providers/insight_api.rb', line 80

def insight_send_tx(tx_hex, network = :bitcoin)
  
  return OnChain::BlockChain.blockr_send_tx(tx_hex, network)
    
  #uri = URI.parse(get_url(network) + "tx/send")		
  #http = Net::HTTP.new(uri.host, uri.port)		
		
  #request = Net::HTTP::Post.new(uri.request_uri)		
  #request.body = '{"rawtx":"' + tx_hex + '"}'		
  #response = http.request(request)
  
  #res = JSON.parse(response.body)

  #mess = 'Unknown'
  #stat = 'Unknown'
  #tx_hash = res["txid"]
  
  #puts 'Call insight_send_tx ' + tx_hex.to_s
  
  #ret = "{\"status\":\"#{stat}\",\"data\":\"#{tx_hash}\",\"code\":200,\"message\":\"#{mess}\"}"	
  #return JSON.parse(ret)	
end

.method_missing(method_name, *args, &block) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/onchain/block_chain.rb', line 33

def method_missing (method_name, *args, &block)
  
  network = :bitcoin
  # List of allowable networks.
  if  args.length > 0
    if [:testnet3, :zcash_testnet, :zcash, :zclassic].include? args[args.length - 1]
      network = args[args.length - 1]
    end
  end
  
  get_available_suppliers(method_name, network).each do |supplier|

    real_method = "#{supplier.to_s}_#{method_name}"
    
    begin
      method = self.method(real_method)
      begin
        result = method.call(*args)
        return result
      rescue => e2
        # We have the method but it errored. Assume
        # service is down.
        cache_write(supplier.to_s, 'down', SERVICE_DOWN_FOR)
        puts e2.to_s
      end
    rescue => e
      puts "there's no method called '#{real_method}'"
      puts e.backtrace
    end
  end
  
end

.parse_address_tx(address, json, network) ⇒ Object 



29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/onchain/providers/blockr_api.rb', line 29

def parse_address_tx(address, json, network)
  
  hist = []
  if json.key?('data')
    txs = json['data']['txs']
    txs.each do |tx|
      row = {}
      row[:time] = DateTime.parse(tx["time_utc"]).to_time.to_i
      row[:addr] = {}
      row[:outs] = {}
      row[:hash] = tx["tx"]
      
      # OK, go and get the actual transaction
      tx_json = blockr('tx/info', tx["tx"], network)
      
      inputs = tx_json['data']['trade']['vins']
      val = 0
      recv = "Y"
      inputs.each do |input|
        row[:addr][input["address"]] = input["address"]
        if input["address"] == address
          recv = "N"
        end
      end
      tx_json['data']['trade']["vouts"].each do |out|
        row[:outs][out["address"]] = out["address"]
        if recv == "Y" and out["address"] == address
          val = val + out["amount"].to_f
        elsif recv == "N" and out["address"] != address
          val = val + out["amount"].to_f
        end
      end
      row[:total] = val
      row[:recv] = recv
      hist << row
    end
    return hist
  else
    'Error'
  end
  return hist
end

.parse_bitcoind_address_tx(address, json, network) ⇒ Object 



48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/onchain/providers/bitcoind_api.rb', line 48

def parse_bitcoind_address_tx(address, json, network)
  
  hist = []
  json.each do |tx|
    
    
    row = {}
    row[:hash] = tx['txid']
    
    row[:time] = tx['time']
    row[:addr] = {}
    row[:outs] = {}
    
    inputs = tx['vin']
    val = 0
    recv = "Y"
    inputs.each do |input|
      row[:addr][input["addr"]] = input["addr"]
      if input["addr"] == address
        recv = "N"
      end
    end
    
    tx['vout'].each do |out|
      out_addr = out["scriptPubKey"]["addresses"][0]
      row[:outs][out_addr] = out_addr
      if recv == "Y" and out_addr == address
        val = val + out["value"].to_f
      elsif recv == "N" and out_addr != address
        val = val + out["value"].to_f
      end
    end
    row[:total] = val
    row[:recv] = recv
    hist << row
  end
  return hist
end

.parse_insight_address_tx(address, json, network) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
 
# File 'lib/onchain/providers/insight_api.rb', line 33

def parse_insight_address_tx(address, json, network)
  
  hist = []
  if json.key?('transactions')
    txs = json['transactions']
    txs.each do |tx|
      row = {}
      row[:hash] = tx[tx]
      
      # OK, go and get the actual transaction
      base_url = get_insight_url(network) + "tx/" + tx
      tx_json = fetch_response(base_url, true) 
      
      row[:time] = tx_json["time"]
      row[:addr] = {}
      row[:outs] = {}
      
      inputs = tx_json['vin']
      val = 0
      recv = "Y"
      inputs.each do |input|
        row[:addr][input["addr"]] = input["addr"]
        if input["addr"] == address
          recv = "N"
        end
      end
      
      tx_json["vout"].each do |out|
        out_addr = out["scriptPubKey"]["addresses"][0]
        row[:outs][out_addr] = out_addr
        if recv == "Y" and out_addr == address
          val = val + out["value"].to_f
        elsif recv == "N" and out_addr != address
          val = val + out["value"].to_f
        end
      end
      row[:total] = val
      row[:recv] = recv
      hist << row
    end
    return hist
  else
    'Error'
  end
  return hist
end

.reverse_blockchain_tx(hash) ⇒ Object 



141
142
143
144
145
146
147
 
# File 'lib/onchain/providers/blockchaininfo_api.rb', line 141

def reverse_blockchain_tx(hash)
   bytes = hash.scan(/../).map { |x| x.hex.chr }.join
   
   bytes = bytes.reverse
   
   return hash.scan(/../).reverse.join
end