o }eiR@sLddlZddlmZddlmZmZmZmZmZddl m Z m Z m Z m Z ddlmZmZmZmZddlmZddlmZmZdd lmZmZmZmZmZmZmZe d Z!e"Z#e#$e%d        d(dee&e'fde(de(de)deee*deee*de+de+de)de+defddZ,       d(dede(de(de)deee*deee*de+de+de)de+defd d!Z-       d(d"ee*e&efde(de(de)deee*deee*de+de+de)de+defd#d$Z.       d)d%eee*ee&fde(de(de)deee*deee*de+de+de)de+de+fd&d'Z/dS)*N)PathLike)BinaryIOListOptionalSetUnion)coherence_ratioencoding_languagesmb_encoding_languagesmerge_coherence_ratios)IANA_SUPPORTEDTOO_BIG_SEQUENCETOO_SMALL_SEQUENCETRACE) mess_ratio) CharsetMatchCharsetMatches)any_specified_encodingcut_sequence_chunks iana_nameidentify_sig_or_bom is_cp_similaris_multi_byte_encodingshould_strip_sig_or_bomZcharset_normalizerz)%(asctime)s | %(levelname)s | %(message)s皙?TF皙? sequencessteps chunk_size threshold cp_isolation cp_exclusionpreemptive_behaviourexplainlanguage_thresholdenable_fallbackreturnc / Cst|ttfstdt||rtj} tt t t t |} | dkrGt d|r;tt t | p9tjtt|dddgdgS|dur]tt d d |d d |D}ng}|durutt d d |dd |D}ng}| ||krtt d||| d}| }|dkr| ||krt| |}t |tk} t |tk} | rtt d| n | rtt d| g}|rt|nd}|dur||tt d|t}g}g}d}d}d}t}t|\}}|dur||tt dt |||dd|vr|d|tD]}|r!||vr!q|r+||vr+q||vr2q||d}||k}|oCt|}|dvrU|sUtt d|q|dvrf|sftt d|qzt|}Wnt t!fytt d|Yqwz9| r|durt"|dur|dtdn |t |td|dnt"|dur|n|t |d|d}Wn+t#t$fy}zt|t$stt d|t"|||WYd}~qd}~wwd}|D] } t%|| rd}nq|rtt d|| qt&|s dnt || t| |}!|o#|duo#t || k}"|"r.tt d |tt |!d!}#t'|#d"}#d}$d}%g}&g}'zLt(|||!|||||| D]=}(|&|(|'t)|(||duoodt |komd"kn|'d#|kr}|$d7}$|$|#ks|r|durnqPWn!t#y}ztt d$|t"||#}$d}%WYd}~nd}~ww|%s| r|sz|td%dj*|d&d'Wn#t#y}ztt d(|t"|||WYd}~qd}~ww|'rt+|'t |'nd})|)|ks|$|#krC||tt d)||$t,|)d*d+d,| rA|dd|fvrA|%sAt|||dg|}*||kr7|*}n |dkr?|*}n|*}qtt d-|t,|)d*d+d,|sYt-|}+nt.|}+|+rltt d.|t"|+g},|dkr|&D]}(t/|(||+rd/|+nd}-|,|-qut0|,}.|.rtt d0|.||t|||)||.|||ddfvr|)d1krt d2||rtt t | t||gS||krt d3||rtt t | t||gSqt |dkrM|s|s|r tt d4|rt d5|j1||n2|r#|dus5|r0|r0|j2|j2ks5|dur@t d6||n |rMt d7|||r_t d8|3j1t |dnt d9|rqtt t | |S):af Given a raw bytes sequence, return the best possibles charset usable to render str objects. If there is no results, it is a strong indicator that the source is binary/not text. By default, the process will extract 5 blocks of 512o each to assess the mess and coherence of a given sequence. And will give up a particular code page after 20% of measured mess. Those criteria are customizable at will. The preemptive behavior DOES NOT replace the traditional detection workflow, it prioritize a particular code page but never take it for granted. Can improve the performance. You may want to focus your attention to some code page or/and not others, use cp_isolation and cp_exclusion for that purpose. This function will strip the SIG in the payload/sequence every time except on UTF-16, UTF-32. By default the library does not setup any handler other than the NullHandler, if you choose to set the 'explain' toggle to True it will alter the logger configuration to add a StreamHandler that is suitable for debugging. Custom logging format and handler can be set manually. z4Expected object of type bytes or bytearray, got: {0}rz[zfrom_bytes..zacp_exclusion is set. use this flag for debugging purpose. limited list of encoding excluded : %s.cSr,r-r.r/r2r2r3r4fr5z^override steps (%i) and chunk_size (%i) as content does not fit (%i byte(s) given) parameters.rz>Trying to detect encoding from a tiny portion of ({}) byte(s).zIUsing lazy str decoding because the payload is quite large, ({}) byte(s).z@Detected declarative mark in sequence. Priority +1 given for %s.zIDetected a SIG or BOM mark on first %i byte(s). Priority +1 given for %s.ascii>utf_32utf_16z\Encoding %s won't be tested as-is because it require a BOM. Will try some sub-encoder LE/BE.>utf_7zREncoding %s won't be tested as-is because detection is unreliable without BOM/SIG.z2Encoding %s does not provide an IncrementalDecodergA)encodingz9Code page %s does not fit given bytes sequence at ALL. %sTzW%s is deemed too similar to code page %s and was consider unsuited already. Continuing!zpCode page %s is a multi byte encoding table and it appear that at least one character was encoded using n-bytes.zaLazyStr Loading: After MD chunk decode, code page %s does not fit given bytes sequence at ALL. %sgj@strict)errorsz^LazyStr Loading: After final lookup, code page %s does not fit given bytes sequence at ALL. %szc%s was excluded because of initial chaos probing. Gave up %i time(s). Computed mean chaos is %f %%.d)ndigitsz=%s passed initial chaos probing. Mean measured chaos is %f %%z&{} should target any language(s) of {},z We detected language {} using {}rz.Encoding detection: %s is most likely the one.zoEncoding detection: %s is most likely the one as we detected a BOM or SIG within the beginning of the sequence.zONothing got out of the detection process. Using ASCII/UTF-8/Specified fallback.z7Encoding detection: %s will be used as a fallback matchz:Encoding detection: utf_8 will be used as a fallback matchz:Encoding detection: ascii will be used as a fallback matchz]Encoding detection: Found %s as plausible (best-candidate) for content. With %i alternatives.z=Encoding detection: Unable to determine any suitable charset.)4 isinstance bytearraybytes TypeErrorformattypeloggerlevel addHandlerexplain_handlersetLevelrlendebug removeHandlerloggingWARNINGrrlogjoinintrrrappendsetrr addrrModuleNotFoundError ImportErrorstrUnicodeDecodeError LookupErrorrrangemaxrrdecodesumroundr r r r r: fingerprintbest)/rr r!r"r#r$r%r&r'r(Zprevious_logger_levellengthZis_too_small_sequenceZis_too_large_sequenceZprioritized_encodingsZspecified_encodingZtestedZtested_but_hard_failureZtested_but_soft_failureZfallback_asciiZ fallback_u8Zfallback_specifiedresultsZ sig_encodingZ sig_payloadZ encoding_ianaZdecoded_payloadZbom_or_sig_availableZstrip_sig_or_bomZis_multi_byte_decodereZsimilar_soft_failure_testZencoding_soft_failedZr_Zmulti_byte_bonusZmax_chunk_gave_upZearly_stop_countZlazy_str_hard_failureZ md_chunksZ md_ratioschunkZmean_mess_ratioZfallback_entryZtarget_languagesZ cd_ratiosZchunk_languagesZcd_ratios_mergedr2r2r3 from_bytes!s                          &                            rjfpc Cst|||||||||| S)z Same thing than the function from_bytes but using a file pointer that is already ready. Will not close the file pointer. )rjread) rkr r!r"r#r$r%r&r'r(r2r2r3from_fpsrmpathc CsHt|d} t| ||||||||| WdS1swYdS)z Same thing than the function from_bytes but with one extra step. Opening and reading given file path in binary mode. Can raise IOError. rbN)openrm) rnr r!r"r#r$r%r&r'r(rkr2r2r3 from_paths $rqfp_or_path_or_payloadc Cst|ttfrt|||||||||| d } | St|ttfr0t|||||||||| d } | St|||||||||| d } | S)a) Detect if the given input (file, bytes, or path) points to a binary file. aka. not a string. Based on the same main heuristic algorithms and default kwargs at the sole exception that fallbacks match are disabled to be stricter around ASCII-compatible but unlikely to be a string. ) r r!r"r#r$r%r&r'r()rDr\rrqrFrErjrm) rrr r!r"r#r$r%r&r'r(Zguessesr2r2r3 is_binary3s\- rs) rrrNNTFrT) rrrNNTFrF)0rRosrtypingrrrrrZcdr r r r Zconstantr rrrZmdrmodelsrrutilsrrrrrrr getLoggerrJ StreamHandlerrM setFormatter FormatterrFrErVfloatr\boolrjrmrqrsr2r2r2r3s   $       Z            !