#!/usr/bin/env python3 # # mmgen = Multi-Mode GENerator, a command-line cryptocurrency wallet # Copyright (C)2013-2022 The MMGen Project # Licensed under the GNU General Public License, Version 3: # https://www.gnu.org/licenses # Public project repositories: # https://github.com/mmgen/mmgen https://github.com/mmgen/mmgen-node-tools # https://gitlab.com/mmgen/mmgen https://gitlab.com/mmgen/mmgen-node-tools """ mmnode-ticker: Display price information for cryptocurrency and other assets """ import sys,os from mmgen.common import * from .Ticker import * opts_data = { 'sets': [ ('wide', True, 'percent_change', True), ('wide', True, 'name_labels', True), ('wide', True, 'thousands_comma', True), ('wide', True, 'update_time', True), ], 'text': { 'desc': 'Display prices for cryptocurrency and other assets', 'usage': '[opts] [TRADE_SPECIFIER]', 'options': f""" -h, --help Print this help message --, --longhelp Print help message for long options (common options) -A, --adjust=P Adjust prices by percentage ‘P’. In ‘trading’ mode, spot and adjusted prices are shown in separate columns. -b, --btc Fetch and display data for Bitcoin only -c, --add-columns=LIST Add columns for asset specifiers in LIST (comma- separated, see ASSET SPECIFIERS below). Can also be used to supply a USD exchange rate for missing assets. -C, --cached-data Use cached data from previous network query instead of live data from server -d, --cachedir=D Read and write cached JSON data to directory ‘D’ instead of ‘~/{os.path.relpath(cachedir,start=homedir)}’ -e, --add-precision=N Add ‘N’ digits of precision to columns -E, --elapsed Show elapsed time in UPDATED column (see --update-time) -F, --portfolio Display portfolio data -l, --list-ids List IDs of all available assets -n, --name-labels Label rows with asset names rather than symbols -p, --percent-change Add percentage change columns -P, --pager Pipe the output to a pager -r, --add-rows=LIST Add rows for asset specifiers in LIST (comma-separated, see ASSET SPECIFIERS below). Can also be used to supply a USD exchange rate for missing assets. -T, --thousands-comma Use comma as a thousands separator -u, --update-time Include UPDATED (last update time) column -U, --print-curl Print cURL command to standard output and exit -w, --wide Display all optional columns (equivalent to -punT) -x, --proxy=P Connect via proxy ‘P’. Set to the empty string to disable. Consult the curl manpage for --proxy usage. """, 'notes': """ The script has two display modes: ‘overview’, the default, and ‘trading’, the latter being enabled when a TRADE_SPECIFIER argument (see below) is supplied on the command line. Overview mode displays prices of all configured assets, and optionally the user’s portfolio, while trading mode displays the price of a given quantity of an asset in relation to other assets, optionally comparing an offered price to the spot price. ASSETS consist of either a symbol (e.g. ‘xmr’) or full ID (see --list-ids) consisting of symbol plus label (e.g. ‘xmr-monero’). In cases where the symbol is ambiguous, the full ID must be used. Examples: chf - specify asset by symbol chf-swiss-franc-token - same as above, but use full ID instead of symbol ASSET SPECIFIERS have the following format: ASSET[:RATE[:RATE_ASSET]] If the asset referred to by ASSET is not in the source data (see --list-ids), an arbitrarily chosen label may be used. RATE is the exchange rate of the asset in relation to RATE_ASSET, if present, otherwise USD. When RATE is postfixed with the letter ‘r’, its meaning is reversed, i.e. interpreted as ‘ASSET/RATE_ASSET’ instead of ‘RATE_ASSET/ASSET’. Asset specifier examples: inr:79.5 - INR is not in the source data, so supply rate of 79.5 INR to the Dollar (USD/INR) inr:0.01257r - same as above, but use reverse rate (INR/USD) inr-indian-rupee:79.5 - same as first example, but add an arbitrary label omr-omani-rial:2.59r - Omani Rial is pegged to the Dollar at 2.59 USD bgn-bg-lev:0.5113r:eur - Bulgarian Lev is pegged to the Euro at 0.5113 EUR A TRADE_SPECIFIER is a single argument in the format: ASSET:AMOUNT[:TO_ASSET[:TO_AMOUNT]] Examples: xmr:17.34 - price of 17.34 XMR in all configured assets xmr-monero:17.34 - same as above, but with full ID xmr:17.34:eur - price of 17.34 XMR in EUR only xmr:17.34:eur:2800 - commission on an offer of 17.34 XMR for 2800 EUR TO_AMOUNT, if included, is used to calculate the percentage difference or commission on an offer compared to the spot price. If either ASSET or TO_ASSET refer to assets not present in the source data, a USD rate for the missing asset(s) must be supplied via the --add-columns or --add-rows options. PROXY NOTE The remote server used to obtain the price data, {api_host!r}, blocks Tor behind a Captcha wall, so a Tor proxy cannot be used directly. If you’re concerned about privacy, connect via a VPN, or better yet, VPN over Tor. Then set up an HTTP proxy (e.g. Privoxy) on the VPN’ed host and set the ‘proxy’ option in the config file or --proxy on the command line accordingly. Or run the script directly on the VPN’ed host with ’proxy’ or --proxy set to the null string. Alternatively, you may download the JSON source data in a Tor-proxied browser from ‘{api_url}’, save it as ‘ticker.json’ in your configured cache directory, and run the script with the --cached-data option. RATE LIMITING NOTE To protect user privacy, all filtering and processing of data is performed client side so that the remote server does not know which assets are being examined. This means that data for ALL available assets (currently over 4000) is fetched with each invocation of the script. A rate limit of {L} seconds between calls is thus imposed to prevent abuse of the remote server. When the --btc option is in effect, this limit is reduced to {B} seconds. To bypass the rate limit entirely, use --cached-data. EXAMPLES # Basic display in ‘overview’ mode: $ mmnode-ticker # Display BTC price only: $ mmnode-ticker --btc # Wide display, add EUR and OMR columns, OMR/USD rate, extra precision and # proxy: $ mmnode-ticker -w -c eur,omr-omani-rial:2.59r -e2 -x http://vpnhost:8118 # Wide display, elapsed update time, add EUR, BGN columns and BGN/EUR rate: $ mmnode-ticker -wE -c eur,bgn-bulgarian-lev:0.5113r:eur # Wide display, use cached data from previous network query, show portfolio # (see above), pipe output to pager, add DOGE row: $ mmnode-ticker -wCFP -r doge # Display 17.234 XMR priced in all configured assets (‘trading’ mode): $ mmnode-ticker xmr:17.234 # Same as above, but add INR price at specified USDINR rate: $ mmnode-ticker -c inr:79.5 xmr:17.234 # Same as above, but view INR price only at specified rate, adding label: $ mmnode-ticker -c inr-indian-rupee:79.5 xmr:17.234:inr # Calculate commission on an offer of 2700 USD for 0.123 BTC, compared to # current spot price: $ mmnode-ticker usd:2700:btc:0.123 # Calculate commission on an offer of 200000 INR for 0.1 BTC, compared to # current spot price, at specified USDINR rate: $ mmnode-ticker -n -c inr-indian-rupee:79.5 inr:200000:btc:0.1 CONFIGURED ASSETS: {assets} Customize output by editing the file ~/{cfg} To add a portfolio, edit the file ~/{pf_cfg} """ }, 'code': { 'notes': lambda s: s.format( assets = fmt_list(assets_list_gen(cfg_in),fmt='col',indent=' '), cfg = os.path.relpath(cfg_in.cfg_file,start=homedir), pf_cfg = os.path.relpath(cfg_in.portfolio_file,start=homedir), api_host = api_host, api_url = api_url, L = ratelimit, B = btc_ratelimit, ) } } cmd_args = opts.init(opts_data,do_post_init=True) cfg_in = get_cfg_in() cfg = make_cfg(cmd_args,cfg_in) opts.post_init() main(cfg,cfg_in)