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thodg/cgminer/API-README

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  • Author : Kano
    Date : 2012-10-21 17:04:15
    Hash : 29484e84
    Message : API - add Stratum information to pools

  • API-README
  • This README contains details about the cgminer RPC API
    
    It also includes some detailed information at the end,
    about using miner.php
    
    
    If you start cgminer with the "--api-listen" option, it will listen on a
    simple TCP/IP socket for single string API requests from the same machine
    running cgminer and reply with a string and then close the socket each time
    If you add the "--api-network" option, it will accept API requests from any
    network attached computer.
    
    You can only access the comands that reply with data in this mode.
    By default, you cannot access any privileged command that affects the miner -
    you will receive an access denied status message see --api-allow below.
    
    You can specify IP addresses/prefixes that are only allowed to access the API
    with the "--api-allow" option e.g. --api-allow W:192.168.0.1,10.0.0/24
    will allow 192.168.0.1 or any address matching 10.0.0.*, but nothing else
    IP addresses are automatically padded with extra '.0's as needed
    Without a /prefix is the same as specifying /32
    0/0 means all IP addresses.
    The 'W:' on the front gives that address/subnet privileged access to commands
    that modify cgminer (thus all API commands)
    Without it those commands return an access denied status.
    See --api-groups below to define other groups like W:
    Privileged access is checked in the order the IP addresses were supplied to
    "--api-allow"
    The first match determines the privilege level.
    Using the "--api-allow" option overides the "--api-network" option if they
    are both specified
    With "--api-allow", 127.0.0.1 is not by default given access unless specified
    
    More groups (like the privileged group W:) can be defined using the
    --api-groups command
    Valid groups are only the letters A-Z (except R & W are predefined) and are
    not case sensitive
    The R: group is the same as not privileged access
    The W: group is (as stated) privileged access (thus all API commands)
    To give an IP address/subnet access to a group you use the group letter
    in front of the IP address instead of W: e.g. P:192.168.0/32
    An IP address/subnet can only be a member of one group
    A sample API group would be:
     --api-groups P:switchpool:enablepool:addpool:disablepool:removepool:poolpriority:*
    This would create a group 'P' that can do all current pool commands and all
    non-priviliged commands - the '*' means all non-priviledged commands
    Without the '*' the group would only have access to the pool commands
    Defining multiple groups example:
     --api-groups Q:quit:restart:*,S:save
    This would define 2 groups:
     Q: that can 'quit' and 'restart' as well as all non-priviledged commands
     S: that can only 'save' and no other commands
    
    The RPC API request can be either simple text or JSON.
    
    If the request is JSON (starts with '{'), it will reply with a JSON formatted
    response, otherwise it replies with text formatted as described further below.
    
    The JSON request format required is '{"command":"CMD","parameter":"PARAM"}'
    (though of course parameter is not required for all requests)
    where "CMD" is from the "Request" column below and "PARAM" would be e.g.
    the CPU/GPU number if required.
    
    An example request in both formats to set GPU 0 fan to 80%:
      gpufan|0,80
      {"command":"gpufan","parameter":"0,80"}
    
    The format of each reply (unless stated otherwise) is a STATUS section
    followed by an optional detail section
    
    From API version 1.7 onwards, reply strings in JSON and Text have the
    necessary escaping as required to avoid ambiguity - they didn't before 1.7
    For JSON the 2 characters '"' and '\' are escaped with a '\' before them
    For Text the 4 characters '|' ',' '=' and '\' are escaped the same way
    
    Only user entered information will contain characters that require being
    escaped, such as Pool URL, User and Password or the Config save filename,
    when they are returned in messages or as their values by the API
    
    For API version 1.4 and later:
    
    The STATUS section is:
    
     STATUS=X,When=NNN,Code=N,Msg=string,Description=string|
    
      STATUS=X Where X is one of:
       W - Warning
       I - Informational
       S - Success
       E - Error
       F - Fatal (code bug)
    
      When=NNN
       Standard long time of request in seconds
    
      Code=N
       Each unique reply has a unigue Code (See api.c - #define MSG_NNNNNN)
    
      Msg=string
       Message matching the Code value N
    
      Description=string
       This defaults to the cgminer version but is the value of --api-description
       if it was specified at runtime.
    
    For API version 1.10 and later:
    
    The list of requests - a (*) means it requires privileged access - and replies are:
    
     Request       Reply Section  Details
     -------       -------------  -------
     version       VERSION        CGMiner=cgminer, version
                                  API=API| version
    
     config        CONFIG         Some miner configuration information:
                                  GPU Count=N, <- the number of GPUs
                                  PGA Count=N, <- the number of PGAs
                                  CPU Count=N, <- the number of CPUs
                                  Pool Count=N, <- the number of Pools
                                  ADL=X, <- Y or N if ADL is compiled in the code
                                  ADL in use=X, <- Y or N if any GPU has ADL
                                  Strategy=Name, <- the current pool strategy
                                  Log Interval=N, <- log interval (--log N)
                                  Device Code=GPU ICA , <- spaced list of compiled devices
                                  OS=Linux/Apple/..., <- operating System
                                  Failover-Only=true/false, <- failover-only setting
                                  ScanTime=N, <- --scan-time setting
                                  Queue=N, <- --queue setting
                                  Expiry=N| <- --expiry setting
    
     summary       SUMMARY        The status summary of the miner
                                  e.g. Elapsed=NNN,Found Blocks=N,Getworks=N,...|
    
     pools         POOLS          The status of each pool
                                  e.g. Pool=0,URL=http://pool.com:6311,Status=Alive,...|
    
     devs          DEVS           Each available GPU, PGA and CPU with their details
                                  e.g. GPU=0,Accepted=NN,MHS av=NNN,...,Intensity=D|
                                  Last Share Time=NNN, <- standand long time in seconds
                                   (or 0 if none) of last accepted share
                                  Last Share Pool=N, <- pool number (or -1 if none)
                                  Will not report PGAs if PGA mining is disabled
                                  Will not report CPUs if CPU mining is disabled
    
     gpu|N         GPU            The details of a single GPU number N in the same
                                  format and details as for DEVS
    
     pga|N         PGA            The details of a single PGA number N in the same
                                  format and details as for DEVS
                                  This is only available if PGA mining is enabled
                                  Use 'pgacount' or 'config' first to see if there are any
    
     cpu|N         CPU            The details of a single CPU number N in the same
                                  format and details as for DEVS
                                  This is only available if CPU mining is enabled
                                  Use 'cpucount' or 'config' first to see if there are any
    
     gpucount      GPUS           Count=N| <- the number of GPUs
    
     pgacount      PGAS           Count=N| <- the number of PGAs
                                  Always returns 0 if PGA mining is disabled
    
     cpucount      CPUS           Count=N| <- the number of CPUs
                                  Always returns 0 if CPU mining is disabled
    
     switchpool|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of switching pool N to the
                                  highest priority (the pool is also enabled)
                                  The Msg includes the pool URL
    
     enablepool|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of enabling pool N
                                  The Msg includes the pool URL
    
     addpool|URL,USR,PASS (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of attempting to add pool N
                                  The Msg includes the pool URL
                                  Use '\\' to get a '\' and '\,' to include a comma
                                  inside URL, USR or PASS
    
     poolpriority|N,... (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of changing pool priorities
                                  See usage below
    
     disablepool|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of disabling pool N
                                  The Msg includes the pool URL
    
     removepool|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of removing pool N
                                  The Msg includes the pool URL
                                  N.B. all details for the pool will be lost
    
     gpuenable|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the enable request
    
     gpudisable|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the disable request
    
     gpurestart|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the restart request
    
     gpuintensity|N,I (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting GPU N intensity to I
    
     gpumem|N,V (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting GPU N memoryclock to V MHz
    
     gpuengine|N,V (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting GPU N clock to V MHz
    
     gpufan|N,V (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting GPU N fan speed to V%
    
     gpuvddc|N,V (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting GPU N vddc to V
    
     save|filename (*)
                   none           There is no reply section just the STATUS section
                                  stating success or failure saving the cgminer config
                                  to filename
                                  The filename is optional and will use the cgminer
                                  default if not specified
    
     quit (*)      none           There is no status section but just a single "BYE"
                                  reply before cgminer quits
    
     notify        NOTIFY         The last status and history count of each devices problem
                                  This lists all devices including those not supported
                                  by the 'devs' command
                                  e.g. NOTIFY=0,Name=GPU,ID=0,Last Well=1332432290,...|
    
     privileged (*)
                   none           There is no reply section just the STATUS section
                                  stating an error if you do not have privileged access
                                  to the API and success if you do have privilege
                                  The command doesn't change anything in cgminer
    
     pgaenable|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the enable request
                                  You cannot enable a PGA if it's status is not WELL
                                  This is only available if PGA mining is enabled
    
     pgadisable|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the disable request
                                  This is only available if PGA mining is enabled
    
     pgaidentify|N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of the identify request
                                  This is only available if PGA mining is enabled
                                  and currently only BFL singles support this command
                                  On a BFL single it will flash the led on the front
                                  of the device for appoximately 4s
                                  All other non BFL PGA devices will return a warning
                                  status message stating that they dont support it
                                  This adds a 4s delay to the BFL share being processed
                                  so you may get a message stating that procssing took
                                  longer than 7000ms if the request was sent towards
                                  the end of the timing of any work being worked on
                                  e.g.: BFL0: took 8438ms - longer than 7000ms
                                  You should ignore this
    
     devdetails    DEVDETAILS     Each device with a list of their static details
                                  This lists all devices including those not supported
                                  by the 'devs' command
                                  e.g. DEVDETAILS=0,Name=GPU,ID=0,Driver=opencl,...|
    
     restart (*)   none           There is no status section but just a single "RESTART"
                                  reply before cgminer restarts
    
     stats         STATS          Each device or pool that has 1 or more getworks
                                  with a list of stats regarding getwork times
                                  The values returned by stats may change in future
                                  versions thus would not normally be displayed
                                  Device drivers are also able to add stats to the
                                  end of the details returned
    
     check|cmd     COMMAND        Exists=Y/N, <- 'cmd' exists in this version
                                  Access=Y/N| <- you have access to use 'cmd'
    
     failover-only|true/false (*)
                   none           There is no reply section just the STATUS section
                                  stating what failover-only was set to
    
     coin          COIN           Coin mining information:
                                  Hash Method=sha256/scrypt,
                                  Current Block Time=N.N, <- 0 means none
                                  Current Block Hash=XXXX..., <- blank if none
                                  LP=true/false| <- LP is in use on at least 1 pool
    
     debug|setting (*)
                   DEBUG          Debug settings
                                  The optional commands for 'setting' are the same as
                                  the screen curses debug settings
                                  You can only specify one setting
                                  Only the first character is checked (case insensitive):
                                  Silent, Quiet, Verbose, Debug, RPCProto, PerDevice,
                                  WorkTime, Normal
                                  The output fields are (as above):
                                  Silent=true/false,
                                  Quiet=true/false,
                                  Verbose=true/false,
                                  Debug=true/false,
                                  RPCProto=true/false,
                                  PerDevice=true/false,
                                  WorkTime=true/false|
    
     setconfig|name,N (*)
                   none           There is no reply section just the STATUS section
                                  stating the results of setting 'name' to N
                                  The valid values for name are currently:
                                  queue, scantime, expiry
                                  N is an integer in the range 0 to 9999
    
    When you enable, disable or restart a GPU or PGA, you will also get Thread messages
    in the cgminer status window
    
    The 'poolpriority' command can be used to reset the priority order of multiple
    pools with a single command - 'switchpool' only sets a single pool to first priority
    Each pool should be listed by id number in order of preference (first = most
    preferred)
    Any pools not listed will be prioritised after the ones that are listed, in the
    priority order they were originally
    If the priority change affects the miner's preference for mining, it may switch
    immediately
    
    When you switch to a different pool to the current one (including by priority
    change), you will get a 'Switching to URL' message in the cgminer status
    windows
    
    Obviously, the JSON format is simply just the names as given before the '='
    with the values after the '='
    
    If you enable cgminer debug (-D or --debug) or, when cgminer debug is off,
    turn on debug with the API command 'debug|debug' you will also get messages
    showing some details of the requests received and the replies
    
    There are included 4 program examples for accessing the API:
    
    api-example.php - a php script to access the API
      usAge: php api-example.php command
     by default it sends a 'summary' request to the miner at 127.0.0.1:4028
     If you specify a command it will send that request instead
     You must modify the line "$socket = getsock('127.0.0.1', 4028);" at the
     beginning of "function request($cmd)" to change where it looks for cgminer
    
    API.java/API.class
     a java program to access the API (with source code)
      usAge is: java API command address port
     Any missing or blank parameters are replaced as if you entered:
      java API summary 127.0.0.1 4028
    
    api-example.c - a 'C' program to access the API (with source code)
      usAge: api-example [command [ip/host [port]]]
     again, as above, missing or blank parameters are replaced as if you entered:
      api-example summary 127.0.0.1 4028
    
    miner.php - an example web page to access the API
     This includes buttons and inputs to attempt access to the privileged commands
     See the end of this API-README for details of how to tune the display
     and also to use the option to display a multi-rig summary
    
    ----------
    
    Feature Changelog for external applications using the API:
    
    
    API V1.20
    
    Modified API commands:
     'pools' - add 'Has Stratum', 'Stratum Active', 'Stratum URL'
    
    ----------
    
    API V1.19 (cgminer v2.7.6)
    
    Added API commands:
     'debug'
     'pgaidentify|N' (only works for BFL Singles so far)
     'setconfig|name,N'
    
    Modified API commands:
     'devs' - add 'Diff1 Work', 'Difficulty Accepted', 'Difficulty Rejected',
                  'Last Share Difficulty' to all devices
     'gpu|N' - add 'Diff1 Work', 'Difficulty Accepted',
                  'Difficulty Rejected', 'Last Share Difficulty'
     'pga|N' - add 'Diff1 Work', 'Difficulty Accepted',
                  'Difficulty Rejected', 'Last Share Difficulty'
     'notify' - add '*Dev Throttle' (for BFL Singles)
     'pools' - add 'Proxy Type', 'Proxy', 'Difficulty Accepted', 'Difficulty Rejected',
                   'Difficulty Stale', 'Last Share Difficulty'
     'config' - add 'Queue', 'Expiry'
     'stats' - add 'Work Diff', 'Min Diff', 'Max Diff', 'Min Diff Count',
                   'Max Diff Count' to the pool stats
    
    ----------
    
    API V1.18 (cgminer v2.7.4)
    
    Modified API commands:
     'stats' - add 'Work Had Roll Time', 'Work Can Roll', 'Work Had Expire',
    		'Work Roll Time' to the pool stats
     'config' - include 'ScanTime'
    
    ----------
    
    API V1.17 (cgminer v2.7.1)
    
    Added API commands:
     'coin'
    
    Modified API commands:
     'summary' - add 'Work Utility'
     'pools' - add 'Diff1 Shares'
    
    ----------
    
    API V1.16 (cgminer v2.6.5)
    
    Added API commands:
     'failover-only'
    
    Modified API commands:
     'config' - include failover-only state
    
    ----------
    
    API V1.15 (cgminer v2.6.1)
    
    Added API commands:
     'poolpriority'
    
    ----------
    
    API V1.14 (cgminer v2.5.0)
    
    Modified API commands:
     'stats' - more icarus timing stats added
     'notify' - include new device comms error counter
    
    The internal code for handling data was rewritten (~25% of the code)
    Completely backward compatible
    
    ----------
    
    API V1.13 (cgminer v2.4.4)
    
    Added API commands:
     'check'
    
    Support was added to cgminer for API access groups with the --api-groups option
    It's 100% backward compatible with previous --api-access commands
    
    ----------
    
    API V1.12 (cgminer v2.4.3)
    
    Modified API commands:
     'stats' - more pool stats added
    
    Support for the ModMinerQuad FPGA was added
    
    ----------
    
    API V1.11 (cgminer v2.4.2)
    
    Modified API commands:
     'save' no longer requires a filename (use default if not specified)
    
    'save' incorrectly returned status E (error) on success before.
    It now correctly returns S (success)
    
    ----------
    
    API V1.10 (cgminer v2.4.1)
    
    Added API commands:
     'stats'
    
    N.B. the 'stats' command can change at any time so any specific content
    present should not be relied upon.
    The data content is mainly used for debugging purposes or hidden options
    in cgminer and can change as development work requires
    
    Modified API commands:
     'pools' added "Last Share Time"
    
    ----------
    
    API V1.9 (cgminer v2.4.0)
    
    Added API commands:
     'restart'
    
    Modified API commands:
     'notify' corrected invalid JSON
    
    ----------
    
    API V1.8 (cgminer v2.3.5)
    
    Added API commands:
     'devdetails'
    
    Support for the ZTex FPGA was added
    
    ----------
    
    API V1.7 (cgminer v2.3.4)
    
    Added API commands:
     'removepool'
    
    Modified API commands:
     'pools' added "User"
    
    From API version 1.7 onwards, reply strings in JSON and Text have the
    necessary escaping as required to avoid ambiguity
    For JSON the 2 characters '"' and '\' are escaped with a '\' before them
    For Text the 4 characters '|' ',' '=' and '\' are escaped the same way
    
    ----------
    
    API V1.6 (cgminer v2.3.2)
    
    Added API commands:
     'pga'
     'pgaenable'
     'pgadisable'
     'pgacount'
    
    Modified API commands:
     'devs' now includes Icarus and Bitforce FPGA devices
     'notify' added "*" to the front of the name of all numeric error fields
     'config' correct "Log Interval" to use numeric (not text) type for JSON
    
    Support for Icarus and Bitforce FPGAs was added
    
    ----------
    
    API V1.5 was not released
    
    ----------
    
    API V1.4 (Kano's interim release of cgminer v2.3.1)
    
    Added API commands:
     'notify'
    
    Modified API commands:
     'config' added "Device Code" and "OS"
    
    Added "When" to the STATUS reply section of all commands
    
    ----------
    
    API V1.3 (cgminer v2.3.1-2)
    
    Added API commands:
     'addpool'
    
    Modified API commands:
     'devs'/'gpu' added "Total MH" for each device
     'summary' added "Total MH"
    
    ----------
    
    API V1.2 (cgminer v2.3.0)
    
    Added API commands:
     'enablepool'
     'disablepool'
     'privileged'
    
    Modified API commands:
     'config' added "Log Interval"
    
    Starting with API V1.2, any attempt to access a command that requires
    privileged security, from an IP address that does not have privileged
    security, will return an "Access denied" Error Status
    
    ----------
    
    API V1.1 (cgminer v2.2.4)
    
    There were no changes to the API commands in cgminer v2.2.4,
    however support was added to cgminer for IP address restrictions
    with the --api-allow option
    
    ----------
    
    API V1.1 (cgminer v2.2.2)
    
    Prior to V1.1, devs/gpu incorrectly reported GPU0 Intensity for all GPUs
    
    Modified API commands:
     'devs'/'gpu' added "Last Share Pool" and "Last Share Time" for each device
    
    ----------
    
    API V1.0 (cgminer v2.2.0)
    
    Remove default CPU support
    
    Added API commands:
     'config'
     'gpucount'
     'cpucount'
     'switchpool'
     'gpuintensity'
     'gpumem'
     'gpuengine'
     'gpufan'
     'gpuvddc'
     'save'
    
    ----------
    
    API V0.7 (cgminer v2.1.0)
    
    Initial release of the API in the main cgminer git
    
    Commands:
     'version'
     'devs'
     'pools'
     'summary'
     'gpuenable'
     'gpudisable'
     'gpurestart'
     'gpu'
     'cpu'
     'gpucount'
     'cpucount'
     'quit'
    
    ----------------------------------------
    
    miner.php
    =========
    
    miner.php is a PHP based interface to the cgminer RPC API
    (referred to simply as the API below)
    
    It can show rig details, summaries and input fields to allow you to change
    cgminer
    You can also create custom summary pages with it
    
    It has two levels to the security:
    1) cgminer can be configured to allow or disallow API access and access level
       security for miner.php
    2) miner.php can be configured to allow or disallow privileged cgminer
       access, if cgminer is configured to allow privileged access for miner.php
    
    ---------
    
    To use miner.php requires a web server with PHP
    
    Basics: On xubuntu 11.04, to install apache2 and php, the commands are:
     sudo apt-get install apache2
     sudo apt-get install php5
     sudo /etc/init.d/apache2 reload
    
    On Fedora 17:
     yum install httpd php
     systemctl restart httpd.service
     systemctl enable httpd.service --system
    
    On windows there are a few options.
    Try one of these (I've never used either one)
     http://www.apachefriends.org/en/xampp.html
     http://www.wampserver.com/en/
    
    ---------
    
    The basic cgminer option to enable the API is:
    
     --api-listen
    
    or in your cgminer.conf
    
     "api-listen" : true,
    
    (without the ',' on the end if it is the last item)
    
    If the web server is running on the cgminer computer, the above
    is the only change required to give miner.php basic access to
    the cgminer API
    
    -
    
    If the web server runs on a different computer to cgminer,
    you will also need to tell cgminer to allow the web server
    to access cgminer's API and tell miner.php where cgminer is
    
    Assuming a.b.c.d is the IP address of the web server, you
    would add the following to cgminer:
    
     --api-listen --api-allow a.b.c.d
    
    or in your cgminer.conf
    
     "api-listen" : true,
     "api-allow" : "a.b.c.d",
    
    to tell cgminer to give the web server read access to the API
    
    You also need to tell miner.php where cgminer is.
    Assuming cgminer is at IP address e.f.g.h, then you would
    edit miner.php and change the line
    
     $rigs = array('127.0.0.1:4028');
    
    to
    
     $rigs = array('e.f.g.h:4028');
    
    See --api-network or --api-allow for more access details
    and how to give write access
    
    ---------
    
    Once you have a web server with PHP running
    
     copy your miner.php to the main web folder
    
    On Xubuntu 11.04
     /var/www/
    
    On Fedora 17
     /var/www/html/
    
    On Windows
     see your windows Web/PHP documentation
    
    Assuming the IP address of the web server is a.b.c.d
    Then in your web browser go to:
    
     http://a.b.c.d/miner.php
    
    Done :)
    
    ---------
    
    The rest of this documentation deals with the more complex
    functions of miner.php, using myminer.php, creaing custom
    summaries and displaying multiple cgminer rigs
    
    ---------
    
    If you create a file called myminer.php in the same web folder
    where you put miner.php, miner.php will load it when it runs
    
    This is useful, to put any changes you need to make to miner.php
    instead of changing miner.php
    Thus if you update/get a new miner.php, you won't lose the changes
    you have made if you put all your changes in myminer.php
    (and don't change miner.php at all)
    
    A simple example myminer.php that defines 2 rigs
    (that I will keep referring to further below) is:
    
    <?php
    #
    $rigs = array('192.168.0.100:4028:A', '192.168.0.102:4028:B');
    #
    ?>
    
    Changes in myminer.php superscede what is in miner.php
    However, this is only valid for variables in miner.php before the
    2 lines where myminer.php is included by miner.php:
    
     if (file_exists('myminer.php'))
      include_once('myminer.php');
     
    Every variable in miner.php above those 2 lines, can be changed by
    simply defining them in your myminer.php
    
    So although miner.php originally contains the line
    
     $rigs = array('127.0.0.1:4028');
    
    if you created the example myminer.php given above, it would actually
    change the value of $rigs that is used when miner.php is running
    i.e. you don't have to remove or comment out the $rigs line in miner.php
    It will be superceded by myminer.php
    
    ---------
    
    The example.php above also shows how to define more that one rig to
    be shown my miner.php
    
    Each rig string is 2 or 3 values seperated by colons ':'
    They are simply an IP address or host name, followed by the
    port number (usually 4028) and an optional Name string
    
    miner.php displays rig buttons that will show the defails of a single
    rig when you click on it - the button shows either the rig number,
    or the 'Name' string if you provide it
    
    PHP arrays contain each string seperated by a comma, but no comma after
    the last one
    
    So an example for 3 rigs would be:
    
     $rigs = array('192.168.0.100:4028:A', '192.168.0.102:4028:B', '192.168.0.110:4028:C');
    
    Of course each of the rigs listed would also have to have the API
    running and be set to allow the web server to access the API - as
    explained before
    
    ---------
    
    So basically, any variable explained below can be put in myminer.php
    if you wanted to set it to something different to it's default value
    and did not want to change miner.php itself every time you updated it
    
    Below is each variable that can be changed and an explanation of each
    
    ---------
    
    Default:
     $dfmt = 'H:i:s j-M-Y \U\T\CP';
    
    Define the date format used to print full length dates
    If you get the string 'UTCP' on the end of your dates shown, that
    means you are using an older version of PHP and you can instead use:
     $dfmt = 'H:i:s j-M-Y \U\T\CO';
    
    The PHP documentation on the date format is here:
     http://us.php.net/manual/en/function.date.php
    
    ---------
    
    Default:
     $title = 'Mine';
    
    Web page title
    If you know PHP you can of course use code to define it e.g.
     $title = 'My Rig at: '.date($dfmt);
    
    Which would set the web page title to something like:
     My Rig at: 10:34:00 22-Aug-2012 UTC+10:00
    
    ---------
    
    Default:
     $readonly = false;
    
    Set $readonly to true to force miner.php to be readonly
    This means it won't allow you to change cgminer even if the cgminer API
    options allow it to
    
    If you set $readonly to false then it will check cgminer 'privileged'
    and will show input fields and buttons on the single rig page
    allowing you to change devices, pools and even quit or restart
    cgminer
    
    However, if the 'privileged' test fails, the code will set $readonly to
    true
    
    ---------
    
    Default:
     $notify = true;
    
    Set $notify to false to NOT attempt to display the notify command
    table of data
    
    Set $notify to true to attempt to display the notify command on
    the single rig page
    If your older version of cgminer returns an 'Invalid command'
    coz it doesn't have notify - it just shows the error status table
    
    ---------
    
    Default:
     $checklastshare = true;
    
    Set $checklastshare to true to do the following checks:
    If a device's last share is 12x expected ago then display as an error
    If a device's last share is 8x expected ago then display as a warning
    If either of the above is true, also display the whole line highlighted
    This assumes shares are 1 difficulty shares
    
    Set $checklastshare to false to not do the above checks
    
    'expected' is calculated from the device MH/s value
    So for example, a device that hashes at 380MH/s should (on average)
    find a share every 11.3s
    If the last share was found more than 11.3 x 12 seconds (135.6s) ago,
    it is considered an error and highlighted
    If the last share was found more than 11.3 x 8 seconds (90.4s) ago,
    it is considered a warning and highlighted
    
    The default highlighting is very subtle
    
    ---------
    
    Default:
     $poolinputs = false;
    
    Set $poolinputs to true to show the input fields for adding a pool
    and changing the pool priorities on a single rig page
    However, if $readonly is true, it will not display them
    
    ---------
    
    Default:
     $rigs = array('127.0.0.1:4028');
    
    Set $rigs to an array of your cgminer rigs that are running
     format: 'IP:Port' or 'Host:Port' or 'Host:Port:Name'
    If you only have one rig, it will just show the detail of that rig
    If you have more than one rig it will show a summary of all the rigs
     with buttons to show the details of each rig -
     the button contents will be 'Name' rather than rig number, if you
     specify 'Name'
    e.g. $rigs = array('127.0.0.1:4028','myrig.com:4028:Sugoi');
    
    ---------
    
    Default:
     $rigipsecurity = true;
    
    Set $rigipsecurity to false to show the IP/Port of the rig
    in the socket error messages and also show the full socket message
    
    ---------
    
    Default:
     $rigtotals = true;
     $forcerigtotals = false;
    
    Set $rigtotals to true to display totals on the single rig page
    'false' means no totals (and ignores $forcerigtotals)
    
    If $rigtotals is true, all data is also right aligned
    With false, it's as before, left aligned
    
    This option is just here to allow people to set it to false
    if they prefer the old non-total display when viewing a single rig
    
    Also, if there is only one line shown in any section, then no
    total will be shown (to save screen space)
    You can force it to always show rig totals on the single rig page,
    even if there is only one line, by setting $forcerigtotals = true;
    
    ---------
    
    Default:
     $socksndtimeoutsec = 10;
     $sockrcvtimeoutsec = 40;
    
    The numbers are integer seconds
    
    The defaults should be OK for most cases
    However, the longer SND is, the longer you have to wait while
    php hangs if the target cgminer isn't runnning or listening
    
    RCV should only ever be relevant if cgminer has hung but the
    API thread is still running, RCV would normally be >= SND
    
    Feel free to increase SND if your network is very slow
    or decrease RCV if that happens often to you
    
    Also, on some windows PHP, apparently the $usec is ignored
    (so usec can't be specified)
    
    ---------
    
    Default:
     $hidefields = array();
    
    List of fields NOT to be displayed
    You can use this to hide data you don't want to see or don't want
    shown on a public web page
    The list of sections are:
     SUMMARY, POOL, PGA, GPU, NOTIFY, CONFIG, DEVDETAILS, DEVS
    See the web page for the list of field names (the table headers)
    It is an array of 'SECTION.Field Name' => 1
    
    This example would hide the slightly more sensitive pool information:
    Pool URL and pool username:
     $hidefields = array('POOL.URL' => 1, 'POOL.User' => 1);
    
    If you just want to hide the pool username:
     $hidefields = array('POOL.User' => 1);
    
    ---------
    
    Default:
     $ignorerefresh = false;
     $changerefresh = true;
     $autorefresh = 0;
    
    Auto-refresh of the page (in seconds) - integers only
    
    $ignorerefresh = true/false always ignore refresh parameters
    $changerefresh = true/false show buttons to change the value
    $autorefresh = default value, 0 means dont auto-refresh
    
    ---------
    
    Default:
     $placebuttons = 'top';
    
    Where to place the Refresh, Summary, Custom Pages, Quit, etc. buttons
    
    Valid values are: 'top' 'bot' 'both'
     anything else means don't show them - case sensitive
    
    ---------
    
    Default:
     $miner_font_family = 'verdana,arial,sans';
     $miner_font_size = '13pt';
    
    Change these to set the font and font size used on the web page
    
    ---------
    
    Default:
     $colouroverride = array();
    
    Use this to change the web page colour scheme
    
    See $colourtable in miner.php for the list of possible names to change
    
    Simply put in $colouroverride, just the colours you wish to change
    
    e.g. to change the colour of the header font and background
    you could do the following:
    
     $colouroverride = array(
    	'td.h color'		=> 'green',
    	'td.h background'	=> 'blue'
     );
    
    ---------
    
    Default:
     $allowcustompages = true;
    
    Should we allow custom pages?
    (or just completely ignore them and don't display the buttons)
    
    ---------
    
    OK this part is more complex: Custom Summary Pages
    
    A custom summary page in an array of 'section' => array('FieldA','FieldB'...)
    
    The section defines what data you want in the summary table and the Fields
    define what data you want shown from that section
    
    Standard sections are:
     SUMMARY, POOL, PGA, GPU, NOTIFY, CONFIG, DEVDETAILS, DEVS, STATS, COIN
    
    Fields are the names as shown on the headers on the normal pages
    
    Fields can be 'name=new name' to display 'name' with a different heading
    'new name'
    
    There are also now joined sections:
     SUMMARY+POOL, SUMMARY+DEVS, SUMMARY+CONFIG, DEVS+NOTIFY, DEVS+DEVDETAILS
     SUMMARY+COIN
    
    These sections are an SQL join of the two sections and the fields in them
    are named section.field where section. is the section the field comes from
    See the example further down
    
    Also note:
    - empty tables are not shown
    - empty columns (e.g. an unknown field) are not shown
    - missing field data shows as blank
    - the field name '*' matches all fields except in joined sections
      (useful for STATS and COIN)
    
    There are 2 hard coded sections:
     DATE - displays a date table like at the start of 'Summary'
     RIGS - displays a rig table like at the start of 'Summary'
    
    Each custom summary requires a second array, that can be empty, listing fields
    to be totaled for each section
    If there is no matching total data, no total will show
    
    ---------
    
    Looking at the Mobile example:
    
     $mobilepage = array(
      'DATE' => null,
      'RIGS' => null,
      'SUMMARY' => array('Elapsed', 'MHS av', 'Found Blocks=Blks', 
    			Accepted', 'Rejected=Rej', 'Utility'),
      'DEVS+NOTIFY' => array('DEVS.Name=Name', 'DEVS.ID=ID', 'DEVS.Status=Status',
    			'DEVS.Temperature=Temp', 'DEVS.MHS av=MHS av',
    			'DEVS.Accepted=Accept', 'DEVS.Rejected=Rej',
    			'DEVS.Utility=Utility', 'NOTIFY.Last Not Well=Not Well'),
      'POOL' => array('POOL', 'Status', 'Accepted', 'Rejected=Rej', 'Last Share Time'));
    
     $mobilesum = array(
      'SUMMARY' => array('MHS av', 'Found Blocks', 'Accepted', 'Rejected', 'Utility'),
      'DEVS+NOTIFY' => array('DEVS.MHS av', 'DEVS.Accepted', 'DEVS.Rejected', 'DEVS.Utility'),
      'POOL' => array('Accepted', 'Rejected'));
    
     $customsummarypages = array('Mobile' => array($mobilepage, $mobilesum));
    
    This will show 5 tables (according to $mobilepage)
    Each table will have the chosen details for all the rigs specified in $rigs
    
     DATE
    	A single box with the web server's current date and time
    
     RIGS
    	A table of the rigs: description, time, versions etc
    
     SUMMARY
    
    	This will use the API 'summary' command and show the selected fields:
    		Elapsed, MHS av, Found Blocks, Accepted, Rejected and Utility
    	However, 'Rejected=Rej' means that the header displayed for the 'Rejected'
    	field will be 'Rej', instead of 'Rejected' (to save space)
    	Same for 'Found Blocks=Blks' - to save space
    
     DEVS+NOTIFY
    
    	This will list each of the devices on each rig and display the list of
    	fields as shown
    	It will also include the 'Last Not Well' field from the 'notify' command
    	so you know when the device was last not well
    
    	You will notice that you need to rename each field e.g. 'DEVS.Name=Name'
    	since each field name in the join between DEVS and NOTIFY is actually
    	section.fieldname, not just fieldname
    
    	The join code automatically adds 2 fields to each GPU device: 'Name' and 'ID'
    	They don't exist in the API 'devs' output but I can correctly calculate
    	them from the GPU device data
    	These two fields are used to join DEVS to NOTIFY i.e. find the NOTIFY
    	record that has the same Name and ID as the DEVS record and join them
    
     POOL
    
    	This will use the API 'pools' command and show the selected fields:
    		POOL, Status, Accepted, Rejected, Last Share Time
    	Again, I renamed the 'Rejected' field using 'Rejected=Rej', to save space
    
    $mobilesum lists the sections and fields that should have a total
    You can't define them for 'DATE' or 'RIGS' since they are hard coded tables
    The example given:
    
     SUMMARY
    	Show a total at the bottom of the columns for:
    		MHS av, Found Blocks, Accepted, Rejected, Utility
    
    	Firstly note that you use the original name i.e. for 'Rejected=Rej'
    	you use 'Rejected', not 'Rej' and not 'Rejected=Rej'
    
    	Secondly note that it simply adds up the fields
    	If you ask for a total of a string field you will get the numerical
    	sum of the string data
    
     DEVS+NOTIFY
    
    	Simply note in this join example that you must use the original field
    	names which are section.fieldname, not just fieldname
    
     POOL
    	Show a total at the bottom of the columns for:
    		Accepted and Rejected
    
    	Again remember to use the original field name 'Rejected'