2!V6@s^ddlmZmZddlZddlZddlmZddlmZddl m Z ddl m Z ddl mZddlmZmZdd lmZdd lmZmZmZdd lmZdd lmZdd lmZddlmZddl m!Z!m"Z"m#Z#ddl$m%Z%d\Z&Z'd\Z(Z)Gddde*Z+dS))with_statementunicode_literalsN) import_module) ContentFile) mark_safe) url2pathname)render_to_string) get_hexdigest get_mtime)settings)CompressorErrorUncompressableFileErrorFilterDoesNotExist)CachedCompilerFilter)CssAbsoluteFilter)compressor_file_storage) post_compress) get_class get_mod_func staticfiles)cached_propertyinlinefileinputoutputc@sueZdZdZddddddZeddZddZd d Zd d Z dd dZ ddZ ddZ eddZ eddZeddZeddZdddZddZdd d!Zddddd"d#Zd$d%Zd&dd'd(Zdd)d*Zddd+d,Zddd-d.Zdd/d0ZdS)1 Compressorzi Base compressor object to be subclassed for content type depending implementations details. NcOs|p d|_|pd|_tjjd|_tj|_g|_|pQi|_ |p`d|_ |pog|_ i|_ t tj|_tj|_d|_dS)N compressed/)content output_prefixr ZCOMPRESS_OUTPUT_DIRstrip output_dirDEFAULT_CHARSETcharsetZ split_contentcontexttypefilters extra_contextdictZCOMPRESS_PRECOMPILERSprecompiler_mimetypesrfindersZ_storage)selfrr r%r'argskwargsr/basenamer/r/r0 get_basenameHs zCompressor.get_basenamecCsg}|rBtjj|d}|jtjj|dn|jt|d|jgtjj|j |j dj|S)a Returns file path for an output file based on contents. Returned path is relative to compressor storage's base url, for example "CACHE/css/e41ba2cc6982.css". When `basename` argument is provided then file name (without extension) will be used as a part of returned file name, for example: get_filepath(content, "my_file.css") -> 'CACHE/css/my_file.e41ba2cc6982.css' r<r .) ospathrAappendsplitextextendr r&joinr"r )r,rrCpartsfilenamer/r/r0 get_filepathYs  zCompressor.get_filepathc Csd}tjsyy1|jj|}|jj|s?d}nWqytk rutj|rqtj|}nYqyXn| r|jr|jjt |}n|r|St d|tj |jrdpdfdS)z Returns full path to a file, for example: get_filename('css/one.css') -> '/full/path/to/static/css/one.css' Nz3'%s' could not be found in the COMPRESS_ROOT '%s'%sz or with staticfiles.rF) r DEBUGr4rHexistsr5rr+findrr Z COMPRESS_ROOT)r,rCrNr/r/r0 get_filenamels"    zCompressor.get_filenamecCs|dkrd}ntj|d|}y|jSWnxtk rx}ztd||fWYdd}~Xn>tk r}ztd|||fWYdd}~XnXWdQXdS)zS Reads file contents using given `charset` and returns it as text. zutf-8z utf-8-sigrz!IOError while processing '%s': %sNzs z-Compressor.cached_filters..)r')r,r/r/r0cached_filtersszCompressor.cached_filterscCsdd|jDS)NcSs:g|]0\}}}}|tkrtt|qSr/) SOURCE_FILEstrr )r^kindvaluerCelemr/r/r0r`s z%Compressor.mtimes..)r6)r,r/r/r0mtimess zCompressor.mtimescCs/tdj|jg|jj|jdS)NrrE)r rLrrgencoder$)r,r/r/r0cachekeys zCompressor.cachekeyFc csdtjp |}xN|jD]@\}}}}d}|jj|}|jd|j} itd6|d6|d6|d6| d6} |tkrt | d|} |j || }n|j r|j || \}}n|r|j ||j| Vq|rKt|jkr+|j |tg| }n|j||dd d|Vq|jj|VqWd S) z The heart of content parsing, iterates over the list of split contents and looks at its kind to decide what to do with it. Should yield a bunch of precompiled and/or rendered hunks. Fr$methodrfrdrCrNforcedTN)r COMPRESS_ENABLEDr6r] elem_attribsgetr$ METHOD_INPUTrbr)r\r* precompilefilterrar handle_outputZelem_str) r,rkenabledrdrerCrfZ precompiledZattribsr$optionsr/r/r0hunkss0    zCompressor.hunkscCs|j||jdtS)zl Passes the concatenated content to the 'output' methods of the compressor filters. rj)rqra METHOD_OUTPUT)r,rr/r/r0 filter_outputszCompressor.filter_outputcCs1g}x$|j|D]}|j|qW|S)zk Passes each hunk (file or code) to the 'input' methods of the compressor filters. )rurI)r,rkrZhunkr/r/r0 filter_inputszCompressor.filter_inputcKs|sd|fS|jj|}|jdd}|dkrJd|fS|jj|} | dkr|dkr~d|fStd|nt| \} } yt| } Wn[ttfk rt d|d|j d |d |d | d |} d | j |fSYnXyt | | }Wn"t k rHtd| YnX||d|d|j d |d |} d | j |fS)z Processes file using a pre compiler. This is the place where files like coffee script are processed. Fr&Ntext/csstext/javascriptzQCouldn't find any precompiler in COMPRESS_PRECOMPILERS setting for mimetype '%s'.r filter_typerNr$commandmimetypeTzCould not find "%s".attrs)ryrz)r]rmrnr*r rr ImportError TypeErrorrr&rr7r8r)r,rrdrfrNr$r.r~r}Zfilter_or_commandmod_nameZcls_namemodrqZprecompiler_classr/r/r0rps8         zCompressor.precompilec Ksgx`|D]X}t||d|j|}yt|rI||}nWqtk r^YqXqW|S)Nr{)r7r&callabler5)r,rr'rjr.r_Z filter_funcr/r/r0rqs    zCompressor.filterrcCsWdj|j|}|s"dStjs1|rS|j|}|j|||S|S)z The general output method, override in subclass if you need to do any custom modification. Calls other mode specific methods or simply returns the content directly.  r)rLrxr rlrwrr)r,r9rkrZfiltered_outputr/r/r0rszCompressor.outputcCsIt|d|d}t|r5|||||Std|dS)Nz output_%sz)Couldn't find output method for mode '%s')r7rr )r,r9rrkrCZ output_funcr/r/r0rr/s  zCompressor.handle_outputcCs|j|d|}|jj| s.|rV|jj|t|j|jnt|jj|}|j |i|d6S)z The output method that saves the content to a file and renders the appropriate template with the file's URL. rCrB) rOr4rQsaverrhr$rrB render_output)r,r9rrkrCZ new_filepathrBr/r/r0 output_file8s (zCompressor.output_filecCs|j|i|d6S)za The output method that directly returns the content for inline display. r)r)r,r9rrkrCr/r/r0 output_inlineCszCompressor.output_inlinec Csd|jkri|jds&