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sync code

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This commit is contained in:
Ned Wright
2025-02-27 16:03:28 +00:00
parent bb35eaf657
commit cd020a7ddd
28 changed files with 625 additions and 192 deletions
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61
components/security_apps/waap/waap_clib/ParserPDF.cc
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@@ -21,6 +21,7 @@ USE_DEBUG_FLAG(D_WAAP);
const std::string ParserPDF::m_parserName = "ParserPDF";
const char* PDF_TAIL = "%%EOF";
const size_t PDF_TAIL_LEN = 5;
ParserPDF::ParserPDF(
IParserStreamReceiver &receiver,
@@ -44,16 +45,21 @@ ParserPDF::push(const char *buf, size_t len)
<< "' len="
<< len;
const char *c;
if (m_state == s_error) {
return 0;
}
if (len == 0)
{
dbgTrace(D_WAAP_PARSER_PDF) << "ParserPDF::push(): end of stream. m_state=" << m_state;
if (m_state == s_end) {
if (len == 0) {
dbgTrace(D_WAAP_PARSER_PDF) << "ParserPDF::push(): end of stream. m_state=" << m_state;
if (m_state == s_body && m_tailOffset >= PDF_TAIL_LEN) {
if (m_receiver.onKey("PDF", 3) != 0) {
m_state = s_error;
return 0;
}
if (m_receiver.onValue("", 0) != 0) {
m_state = s_error;
return 0;
}
m_receiver.onKvDone();
} else {
m_state = s_error;
@@ -61,38 +67,43 @@ ParserPDF::push(const char *buf, size_t len)
return 0;
}
size_t start = (len > MAX_PDF_TAIL_LOOKUP) ? len - MAX_PDF_TAIL_LOOKUP : 0;
switch (m_state) {
case s_start:
m_state = s_body;
CP_FALL_THROUGH;
case s_body:
{
size_t tail_lookup_offset = (len > MAX_PDF_TAIL_LOOKUP) ? len - MAX_PDF_TAIL_LOOKUP : 0;
c = strstr(buf + tail_lookup_offset, PDF_TAIL);
for (size_t i = start; i < len; i++) {
dbgTrace(D_WAAP_PARSER_PDF)
<< "string to search: " << std::string(buf + tail_lookup_offset)
<< " c=" << c;
if (c) {
m_state = s_end;
CP_FALL_THROUGH;
<< "ParserPDF::push(): m_tailOffset="
<< m_tailOffset
<< " buf[i]="
<< buf[i];
if (m_tailOffset <= PDF_TAIL_LEN - 1) {
if (buf[i] == PDF_TAIL[m_tailOffset]) {
m_tailOffset++;
} else {
m_tailOffset = 0;
}
} else {
break;
if (buf[i] == '\r' || buf[i] == '\n' || buf[i] == ' ' || buf[i] == 0) {
m_tailOffset++;
} else {
m_tailOffset = 0;
i--;
}
}
}
case s_end:
if (m_receiver.onKey("PDF", 3) != 0) {
m_state = s_error;
return 0;
}
if (m_receiver.onValue("", 0) != 0) {
m_state = s_error;
return 0;
}
dbgTrace(D_WAAP_PARSER_PDF)
<< "ParserPDF::push()->s_body: m_tailOffset="
<< m_tailOffset;
break;
case s_error:
break;
default:
dbgTrace(D_WAAP_PARSER_PDF) << "ParserPDF::push(): unknown state: " << m_state;
dbgTrace(D_WAAP_PARSER_PDF)
<< "ParserPDF::push(): unknown state: "
<< m_state;
m_state = s_error;
return 0;
}