X-Git-Url: https://git.phdru.name/?a=blobdiff_plain;f=mimedecode.docbook;h=9acc3209b228b2c4c25898205fc9f46251bb0231;hb=d0300ffa1ef1f9afee0e4d53c725f54773d89c13;hp=83b0e54cd213791c4a1f40517d07b2ed43fc5345;hpb=5a0b966d01b89f668ce0cea40208d511e1bc04f7;p=mimedecode.git diff --git a/mimedecode.docbook b/mimedecode.docbook index 83b0e54..9acc320 100644 --- a/mimedecode.docbook +++ b/mimedecode.docbook @@ -48,19 +48,55 @@ - + - + - + - + - + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + @@ -131,6 +167,13 @@ + + + Please be warned that in the following options asterisk is a shell + metacharacter and should be escaped or quoted. Either write -d \*,-h1,-h2 + or -d '*,-h1,-h2' or such. + + OPTIONS @@ -196,12 +239,25 @@ - -d header + -d header1[,header2,header3...] - Add the header to a list of headers to decode; initially the list - contains headers "From", "To", "Cc", "Reply-To", "Mail-Followup-To" - and "Subject". + Add the header(s) to a list of headers to decode; initially the + list contains headers "From", "To", "Cc", "Reply-To", + "Mail-Followup-To" and "Subject". + + + + + + -d *[,-header1,-header2,-header3...] + + + This variant completely changes headers decoding. First, the list of + headers to decode is cleared. Then all the headers are decoded + except the given list of exceptions (headers listed with '-'). In + this mode it would be meaningless to give more than one -d options + but the program doesn't enforce it. @@ -216,13 +272,42 @@ - -p header:param + -p header1[,header2,header3,...]:param1[,param2,param3,...] - Add the pair (header, param) to a list of headers parameters to - decode; initially the list contains header "Content-Type", - parameter "name" and header "Content-Disposition", parameter - "filename". + Add the parameters(s) to a list of headers parameters to decode; + the parameters will be decoded only for the given header(s). + Initially the list contains header "Content-Type", parameter "name"; + and header "Content-Disposition", parameter "filename". + + + + + + -p *[,-header1,-header2,-header3,...]:param1[,param2,param3,...] + + + Add the parameters(s) to a list of headers parameters to decode; + the parameters will be decoded for all headers except the given + ones. + + + + + + -p header1[,header2,header3,...]:*[,-param1,-param2,-param3,...] + + + Decode all parameters except listed for the given list of headers. + + + + + + -p *[,-header1,-header2,-header3,...]:*[,-param1,-param2,-param3,...] + + + Decode all parameters except listed for all headers (except listed). @@ -237,21 +322,79 @@ - -r header + -r header1[,header2,header3...] - Add the header to a list of headers to remove completely; initially - the list is empty. + Add the header(s) to a list of headers to remove completely; + initially the list is empty. - -R header:param + -r *[,-header1,-header2,-header3...] - Add the pair (header, param) to a list of headers parameters to - remove; initially the list is empty. + Remove all headers except listed. + + + + + + -R header1[,header2,header3,...]:param1[,param2,param3,...] + + + Add the parameters(s) to a list of headers parameters to remove; + the parameters will be decoded only for the given header(s). + Initially the list is empty. + + + + + + -R *[,-header1,-header2,-header3,...]:param1[,param2,param3,...] + + + + -R header1[,header2,header3,...]:*[,-param1,-param2,-param3,...] + + + + -R *[,-header1,-header2,-header3,...]:*[,-param1,-param2,-param3,...] + + + Remove listed parameters (or all parameters except listed) frome + these headers (or from all headers except listed). + + + + + + --set-header header:value + + + The program sets or changes value for the header to the given value + (only at the top-level message). + + + + + + --set-param header:param=value + + + The program sets or changes value for the header's parameter to the + given value (only at the top-level message). The header must exist. + + + + + + -B mask + + + Append mask to the list of binary content types that will be not + content-transfer-decoded (will be left as base64 or such). @@ -261,8 +404,9 @@ Append mask to the list of binary content types; if the message to - decode has a part of this type the program will pass the part as is, - without any additional processing. + decode has a part of this type the program will + content-transfer-decode (base64 or whatever to 8bit binary) it but + pass the part as is, without any further processing. @@ -300,11 +444,42 @@ + + --save-headers mask + + + + --save-body mask + + + + --save-message mask + + + Append mask to a list of content types to save to a file; + --save-headers saves only decoded headers of the message (or + subpart); --save-body saves only decoded body; --save-message saves + the entire message or subpart (headers + body). + + + + + + -O dest_dir + + + Set destination directory for the output files; the directory must + exist. Default is current directory. + + + + -o output_file - Useful to set the output file in case of redirected stdin: + Save output to the file related to the destination directory from + option -O. Also useful in case of redirected stdin: mimedecode.py -o output_file < input_file cat input_file | mimedecode.py -o output_file @@ -313,24 +488,24 @@ cat input_file | mimedecode.py -o output_file - The 4 list options (-beit) require more explanation. They allow a user to + The 5 list options (-Bbeit) require more explanation. They allow a user to control body decoding with great flexibility. Think about said mail archive; for example, its maintainer wants to put there only texts, convert - Postscript/PDF to text, pass HTML and images as is, and ignore everything - else. Easy: + PDF/Postscript to text, pass HTML and images as is (decoding base64 to html + but left images in base64), and ignore everything else. Easy: - mimedecode.py -t application/postscript -t application/pdf -b text/html - -b 'image/*' -i '*/*' + mimedecode.py -t application/pdf -t application/postscript -b text/html + -B 'image/*' -i '*/*' When the program decodes a message (non-MIME or a non-multipart subpart of a MIME message), it consults Content-Type header. The content type is searched - in all 4 lists, in order "text-binary-ignore-error". If found, appropriate + in all 5 lists, in order "text-binary-ignore-error". If found, appropriate action performed. If not found, the program search the same lists for "type/*" mask (the type of "text/html" is just "text"). If found, appropriate action performed. If not found, the program search the same @@ -340,9 +515,22 @@ cat input_file | mimedecode.py -o output_file - Initially all 4 lists are empty, so without any additional parameters + Initially all 5 lists are empty, so without any additional parameters the program always uses the default decoding. + + + The 3 save list options (--save-headers/body/message) are similar. They make + the program to save every non-multipart subpart (only headers, or body, or + the entire subpart) that corresponds to the given mask to a file. Before + saving the message (or the subpart) is decoded according to all other options + and placed to the output stream as usual. Filename for the file is created + using "filename" parameter from the Content-Disposition header, or "name" + parameter from the Content-Type header if one of those exist; a serial + counter is prepended to the filename to avoid collisions; if there are no + name/filename parameters, the filename is just the serial counter. The file + is saved in the directory set with -O (default is the current directory). +