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r c @ s e Zd ZdZi Zdd Zi Zdd Zdd Ze Z
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Zdd Zdd Zd;ddZdd Zd>> import unbound
>>> ctx = unbound.ub_ctx()
>>> ctx.resolvconf("/etc/resolv.conf")
>>> status, result = ctx.resolve("www.google.com", unbound.RR_TYPE_A, unbound.RR_CLASS_IN)
>>> if status==0 and result.havedata:
>>> print "Result:",result.data.address_list
Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
c C s t | t||S )N)r- r )r' r) r* r r r rI s zub_ctx.c C s t | t|S )N)r/ r )r' r) r r r rI s c O s t dd S )NzNo constructor defined)r& )r' ri rj r r r rE s zub_ctx.__init__c C s t j | _| jstddS )zCreates a resolving and validation context.
An exception is invoked if the process of creation an ub_ctx instance fails.
z2Fatal error: unbound context initialization failedN)r r r r3 )r' r r r rE s
c C s t j| |S )aP Add a trust anchor to the given context.
The trust anchor is a string, on one line, that holds a valid DNSKEY or DS RR.
:param ta:
string, with zone-format RR on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
:returns: (int) 0 if OK, else error.
)r r )r' r r r r add_ta s z
ub_ctx.add_tac C s t j| |S )a Add trust anchors to the given context.
Pass name of a file with DS and DNSKEY records (like from dig or drill).
:param fname:
filename of file with keyfile with trust anchors.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r add_ta_file% s zub_ctx.add_ta_filec C s t j| |S )a\ setup configuration for the given context.
:param fname:
unbound config file (not all settings applicable). This is a power-users interface that lets you specify all sorts of options. For some specific options, such as adding trust anchors, special routines exist.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r config2 s z
ub_ctx.configc C s t j| |S )zSet debug verbosity for the context Output is directed to stderr.
:param d:
debug level, 0 is off, 1 is very minimal, 2 is detailed, and 3 is lots.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r
debuglevel= s zub_ctx.debuglevelc C s t j| |S )a Set debug output (and error output) to the specified stream.
Pass None to disable. Default is stderr.
:param out:
File stream to log to.
:returns: (int) 0 if OK, else error.
**Usage:**
In order to log into file, use
::
ctx = unbound.ub_ctx()
fw = fopen("debug.log")
ctx.debuglevel(3)
ctx.debugout(fw)
Another option is to print the debug information to stderr output
::
ctx = unbound.ub_ctx()
ctx.debuglevel(10)
ctx.debugout(sys.stderr)
)r ub_ctx_debugout)r' outr r r debugoutH s zub_ctx.debugout
/etc/hostsc C s t j| |S )a" Read list of hosts from the filename given.
Usually "/etc/hosts". These addresses are not flagged as DNSSEC secure when queried for.
:param fname:
file name string. If None "/etc/hosts" is used.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r hostsh s z ub_ctx.hostsc C s
t j| S )zPrint the local zones and their content (RR data) to the debug output.
:returns: (int) 0 if OK, else error.
)r r )r' r r r print_local_zonesu s zub_ctx.print_local_zones/etc/resolv.confc C s t j| |S )a Read list of nameservers to use from the filename given.
Usually "/etc/resolv.conf". Uses those nameservers as caching proxies. If they do not support DNSSEC, validation may fail.
Only nameservers are picked up, the searchdomain, ndots and other settings from resolv.conf(5) are ignored.
:param fname:
file name string. If None "/etc/resolv.conf" is used.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r
resolvconf~ s zub_ctx.resolvconfc C s t j| |S )a Set a context behaviour for asynchronous action.
:param dothread:
if True, enables threading and a call to :meth:`resolve_async` creates a thread to handle work in the background.
If False, a process is forked to handle work in the background.
Changes to this setting after :meth:`async` calls have been made have no effect (delete and re-create the context to change).
:returns: (int) 0 if OK, else error.
)r r )r' r r r r set_async s zub_ctx.set_asyncc C s t j| |S )ao Set machine to forward DNS queries to, the caching resolver to use.
IP4 or IP6 address. Forwards all DNS requests to that machine, which is expected to run a recursive resolver. If the is not DNSSEC-capable, validation may fail. Can be called several times, in that case the addresses are used as backup servers.
To read the list of nameservers from /etc/resolv.conf (from DHCP or so), use the call :meth:`resolvconf`.
:param addr:
address, IP4 or IP6 in string format. If the addr is None, forwarding is disabled.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r set_fwd s zub_ctx.set_fwdc C s t j| ||S )a Set an option for the context.
Changes to the options after :meth:`resolve`, :meth:`resolve_async`, :meth:`zone_add`, :meth:`zone_remove`, :meth:`data_add` or :meth:`data_remove` have no effect (you have to delete and re-create the context).
:param opt:
option name from the unbound.conf config file format. (not all settings applicable). The name includes the trailing ':' for example set_option("logfile:", "mylog.txt"); This is a power-users interface that lets you specify all sorts of options. For some specific options, such as adding trust anchors, special routines exist.
:param val:
value of the option.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r r
set_option s zub_ctx.set_optionc C s t j| |S )a Add trust anchors to the given context.
Pass the name of a bind-style config file with trusted-keys{}.
:param fname:
filename of file with bind-style config entries with trust anchors.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r trustedkeys s zub_ctx.trustedkeysc C s t j| dS )z Print local zones using debugoutN)r r )r' r r r
zone_print s zub_ctx.zone_printc C s t j| ||S )zAdd new local zone
:param zonename: zone domain name (e.g. myzone.)
:param zonetype: type of the zone ("static",...)
:returns: (int) 0 if OK, else error.
)r r )r' zonenameZzonetyper r r zone_add s zub_ctx.zone_addc C s t j| |S )zRemove local zone
If exists, removes local zone with all the RRs.
:param zonename: zone domain name
:returns: (int) 0 if OK, else error.
)r r )r' r, r r r zone_remove s zub_ctx.zone_removec C s t j| |S )a Add new local RR data
:param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
:returns: (int) 0 if OK, else error.
**Usage**
The local data ...
::
>>> ctx = unbound.ub_ctx()
>>> ctx.zone_add("mydomain.net.","static")
0
>>> status = ctx.data_add("test.mydomain.net. IN A 192.168.1.1")
0
>>> status, result = ctx.resolve("test.mydomain.net")
>>> if status==0 and result.havedata:
>>> print "Result:",result.data.address_list
Result: ['192.168.1.1']
)r r )r' rrdatar r r data_add s zub_ctx.data_addc C s t j| |S )a Remove local RR data
If exists, remove resource record from local zone
:param rrdata: string, in zone-format on one line. [domainname] [TTL optional] [type] [class optional] [rdata contents]
:returns: (int) 0 if OK, else error.
)r r )r' r/ r r r data_remove s zub_ctx.data_removec C s t j| |S )zCancel an async query in progress.
Its callback will not be called.
:param async_id:
which query to cancel.
:returns: (int) 0 if OK, else error.
)r r )r' r r r r cancel s z
ub_ctx.cancelc C s
t j| S )aj Get file descriptor.
Wait for it to become readable, at this point answers are returned from the asynchronous validating resolver. Then call the ub_process to continue processing. This routine works immediately after context creation, the fd does not change.
:returns: (int) -1 on error, or file descriptor to use select(2) with.
)r r )r' r r r get_fd s z
ub_ctx.get_fdc C s
t j| S )a: Poll a context to see if it has any new results Do not poll in a loop, instead extract the fd below to poll for readiness, and then check, or wait using the wait routine.
:returns: (int) 0 if nothing to read, or nonzero if a result is available. If nonzero, call ctx_process() to do callbacks.
)r r )r' r r r poll s z ub_ctx.pollc C s
t j| S )zCall this routine to continue processing results from the validating resolver (when the fd becomes readable).
Will perform necessary callbacks.
:returns: (int) 0 if OK, else error.
)r r )r' r r r process) s zub_ctx.processc C s2 t |trtj| |||S tj| t|||S dS )a Perform resolution and validation of the target name.
:param name:
domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
:param rrtype:
type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
:param rrclass:
class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
:returns: * (int) 0 if OK, else error.
* (:class:`ub_result`) the result data is returned in a newly allocated result structure. May be None on return, return value is set to an error in that case (out of memory).
N)r: r9 r r idn2dname)r' r) r r r r r resolve4 s
zub_ctx.resolvec C s: t |tr tj| |||||S tj| t|||||S dS )aK Perform resolution and validation of the target name.
Asynchronous, after a while, the callback will be called with your data and the result.
If an error happens during processing, your callback will be called with error set to a nonzero value (and result==None).
:param name:
domain name in text format (a string or unicode string). IDN domain name have to be passed as a unicode string.
:param mydata:
this data is your own data (you can pass arbitrary python object or None) which are passed on to the callback function.
:param callback:
call-back function which is called on completion of the resolution.
:param rrtype:
type of RR in host order (optional argument). Default value is RR_TYPE_A (A class).
:param rrclass:
class of RR in host order (optional argument). Default value is RR_CLASS_IN (for internet).
:returns: * (int) 0 if OK, else error.
* (int) async_id, an identifier number is returned for the query as it is in progress. It can be used to cancel the query.
**Call-back function:**
The call-back function looks as the follows::
def call_back(mydata, status, result):
pass
**Parameters:**
* `mydata` - mydata object
* `status` - 0 when a result has been found
* `result` - the result structure. The result may be None, in that case err is set.
N)r: r9 r _ub_resolve_asyncr6 )r' r) r r r r r r r
resolve_asyncG s
zub_ctx.resolve_asyncc C s
t j| S )zWait for a context to finish with results.
Calls after the wait for you. After the wait, there are no more outstanding asynchronous queries.
:returns: (int) 0 if OK, else error.
)r r )r' r r r waitm s z ub_ctx.waitN)r" )r% )(r r5 r8 rd r! r% r. r rE r6 r1 r r r r r r r r! r# r$ r& r' r( r) r* r+ r- r. r0 r1 r2 r3 r4 r5 RR_TYPE_A RR_CLASS_INr7 r9 r: r r r r r sB
&r c G s
t j| S )N)r r )ri r r r r ~ s r c C s t j| |||||S )N)r r8 )r r) r r r Zpyfuncr r r r8 s r8 c C s$ dj dd | jdD ddd S )zbReverse domain name
Usable for reverse lookups when the IP address should be reversed
r c S s g | ]}|qS r r )rK rL r r r rM s zreverse..Nr )r
split)Zdomainr r r reverse s r? c C s dj dd | jdD S )zConverts domain name in IDN format to canonic domain name
:param idnname: (unicode string) IDN name
:returns: (string) domain name
r c S s g | ]}|rt jj|nd qS )r0 )r] r^ ZToASCII)rK rL r r r rM s z idn2dname..)r
r> )Zidnnamer r r r6 s r6 c C s dj dd | jdD S )zConverts canonic domain name in IDN format to unicode string
:param name: (string) domain name
:returns: (unicode string) domain name
r c S s g | ]}t jj|qS r )r] r^ r_ )rK rL r r r rM s z dname2idn..)r
r> )r) r r r dname2idn s r@ )r r r )r r r )r )sysr Z_swig_python_version_infor r rf r NameErrorr< r2 r
r, r- r/ r6 r$ r7 r# r3 Zencodings.idnar] varsrR r9 r= r? r; Z
RR_TYPE_NSZ
RR_TYPE_MDZ
RR_TYPE_MFZ
RR_TYPE_CNAMEZ RR_TYPE_SOAZ
RR_TYPE_MBZ
RR_TYPE_MGZ
RR_TYPE_MRZ RR_TYPE_NULLZ RR_TYPE_WKSZ RR_TYPE_PTRZ
RR_TYPE_HINFOZ
RR_TYPE_MINFOZ
RR_TYPE_MXZ RR_TYPE_TXTZ
RR_TYPE_RPZ
RR_TYPE_AFSDBZ RR_TYPE_X25Z RR_TYPE_ISDNZ
RR_TYPE_RTZ RR_TYPE_NSAPZRR_TYPE_NSAP_PTRZ RR_TYPE_SIGZ RR_TYPE_KEYZ
RR_TYPE_PXZ RR_TYPE_GPOSZ RR_TYPE_AAAAZ RR_TYPE_LOCZ RR_TYPE_NXTZ RR_TYPE_EIDZRR_TYPE_NIMLOCZ RR_TYPE_SRVZ RR_TYPE_ATMAZ
RR_TYPE_NAPTRZ
RR_TYPE_KXZ RR_TYPE_CERTZ
RR_TYPE_A6Z
RR_TYPE_DNAMEZ RR_TYPE_SINKZ RR_TYPE_OPTZ RR_TYPE_APLZ
RR_TYPE_DSZ
RR_TYPE_SSHFPZRR_TYPE_IPSECKEYZ
RR_TYPE_RRSIGZ RR_TYPE_NSECZRR_TYPE_DNSKEYZ
RR_TYPE_DHCIDZ
RR_TYPE_NSEC3ZRR_TYPE_NSEC3PARAMSZ
RR_TYPE_UINFOZ RR_TYPE_UIDZ RR_TYPE_GIDZRR_TYPE_UNSPECZ RR_TYPE_TSIGZ RR_TYPE_IXFRZ RR_TYPE_AXFRZ
RR_TYPE_MAILBZ
RR_TYPE_MAILAZ RR_TYPE_ANYZ RR_TYPE_CAAZ RR_TYPE_DLVr< Z RR_CLASS_CHZ RR_CLASS_HSZ
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