diff options
Diffstat (limited to 'lib/alaveteli_text_masker.rb')
| -rw-r--r-- | lib/alaveteli_text_masker.rb | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/lib/alaveteli_text_masker.rb b/lib/alaveteli_text_masker.rb index 68ff0d318..5d836f66c 100644 --- a/lib/alaveteli_text_masker.rb +++ b/lib/alaveteli_text_masker.rb @@ -28,9 +28,7 @@ module AlaveteliTextMasker end def apply_pdf_masks!(text, options = {}) - uncompressed_text = nil - uncompressed_text = AlaveteliExternalCommand.run("pdftk", "-", "output", "-", "uncompress", - :stdin_string => text) + uncompressed_text = uncompress_pdf(text) # if we managed to uncompress the PDF... if !uncompressed_text.blank? # then censor stuff (making a copy so can compare again in a bit) @@ -39,19 +37,13 @@ module AlaveteliTextMasker # if the censor rule removed something... if censored_uncompressed_text != uncompressed_text # then use the altered file (recompressed) - recompressed_text = nil - if AlaveteliConfiguration::use_ghostscript_compression == true - command = ["gs", "-sDEVICE=pdfwrite", "-dCompatibilityLevel=1.4", "-dPDFSETTINGS=/screen", "-dNOPAUSE", "-dQUIET", "-dBATCH", "-sOutputFile=-", "-"] - else - command = ["pdftk", "-", "output", "-", "compress"] - end - recompressed_text = AlaveteliExternalCommand.run(*(command + [{:stdin_string=>censored_uncompressed_text}])) + recompressed_text = compress_pdf(censored_uncompressed_text) if recompressed_text.blank? # buggy versions of pdftk sometimes fail on # compression, I don't see it's a disaster in # these cases to save an uncompressed version? recompressed_text = censored_uncompressed_text - logger.warn "Unable to compress PDF; problem with your pdftk version?" + Rails.logger.warn "Unable to compress PDF; problem with your pdftk version?" end if !recompressed_text.blank? text.replace recompressed_text @@ -62,6 +54,27 @@ module AlaveteliTextMasker private + def uncompress_pdf(text) + AlaveteliExternalCommand.run("pdftk", "-", "output", "-", "uncompress", :stdin_string => text) + end + + def compress_pdf(text) + if AlaveteliConfiguration::use_ghostscript_compression + command = ["gs", + "-sDEVICE=pdfwrite", + "-dCompatibilityLevel=1.4", + "-dPDFSETTINGS=/screen", + "-dNOPAUSE", + "-dQUIET", + "-dBATCH", + "-sOutputFile=-", + "-"] + else + command = ["pdftk", "-", "output", "-", "compress"] + end + AlaveteliExternalCommand.run(*(command + [ :stdin_string => text ])) + end + # Replace text in place def apply_binary_masks!(text, options = {}) # Keep original size, so can check haven't resized it |