Module: EscapeUtils

Defined in:
lib/escape_utils.rb,
lib/escape_utils/html_safety.rb,
ext/escape_utils.c

Defined Under Namespace

Modules: HtmlSafety

Constant Summary collapse

VERSION = 
"0.1.6"

Class Method Summary collapse

Class Method Details

.escape_html(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 285

static VALUE rb_escape_html(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*(len*5));

  // perform our escape, returning the new string's length
  new_len = escape_html(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.escape_javascript(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 355

static VALUE rb_escape_javascript(VALUE self, VALUE str) {
  if (str == Qnil) {
    return rb_str_new2("");
  }

  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*(len*2));

  // perform our escape, returning the new string's length
  new_len = escape_javascript(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.escape_uri(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 503

static VALUE rb_escape_uri(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*(len*3));

  // perform our escape, returning the new string's length
  new_len = escape_uri(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.escape_url(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 433

static VALUE rb_escape_url(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*(len*3));

  // perform our escape, returning the new string's length
  new_len = escape_url(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.unescape_html(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 320

static VALUE rb_unescape_html(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*len);

  // perform our escape, returning the new string's length
  new_len = unescape_html(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.unescape_javascript(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 394

static VALUE rb_unescape_javascript(VALUE self, VALUE str) {
  if (str == Qnil) {
    return rb_str_new2("");
  }

  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*len);

  // perform our escape, returning the new string's length
  new_len = unescape_javascript(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.unescape_uri(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 538

static VALUE rb_unescape_uri(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*len);

  // perform our escape, returning the new string's length
  new_len = unescape_uri(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}

.unescape_url(str) ⇒ Object 



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# File 'ext/escape_utils.c', line 468

static VALUE rb_unescape_url(VALUE self, VALUE str) {
  Check_Type(str, T_STRING);

  VALUE rb_output_buf;
#ifdef HAVE_RUBY_ENCODING_H
  rb_encoding *default_internal_enc = rb_default_internal_encoding();
  rb_encoding *original_encoding = rb_enc_get(str);
#endif
  unsigned char *inBuf = (unsigned char*)RSTRING_PTR(str);
  size_t len = RSTRING_LEN(str), new_len = 0;

  // this is the max size the string could be
  // TODO: we should try to be more intelligent about this
  unsigned char *outBuf = (unsigned char *)malloc(sizeof(unsigned char *)*len);

  // perform our escape, returning the new string's length
  new_len = unescape_url(outBuf, inBuf, len);

  // create our new ruby string
  rb_output_buf = rb_str_new((char *)outBuf, new_len);

  // free the temporary C string
  free(outBuf);

#ifdef HAVE_RUBY_ENCODING_H
  rb_enc_associate(rb_output_buf, original_encoding);
  if (default_internal_enc) {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, default_internal_enc);
  } else {
    rb_output_buf = rb_str_export_to_enc(rb_output_buf, utf8Encoding);
  }
#endif
  return rb_output_buf;
}