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added feature to extract filename from http attachment #2037

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merged 9 commits into from
Jul 11, 2023
Merged

added feature to extract filename from http attachment #2037

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bfc9c11
added feature to extract filename from http attachment
ChiaraMaggi Jul 7, 2023
15af1ad
fixed some issues
ChiaraMaggi Jul 7, 2023
a6b7abb
added check for filename format
ChiaraMaggi Jul 7, 2023
12d6d10
added check for filename format
ChiaraMaggi Jul 7, 2023
fb54de0
remove an unnecessary print
ChiaraMaggi Jul 7, 2023
0b479a5
changed the size from 952 to 960
ChiaraMaggi Jul 10, 2023
450db6d
modified some test result files
ChiaraMaggi Jul 11, 2023
b4af523
small changes string size
ChiaraMaggi Jul 11, 2023
01c1033
comment removed and mallocs checked
ChiaraMaggi Jul 11, 2023
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12 changes: 2 additions & 10 deletions src/lib/protocols/http.c
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Original file line number Diff line number Diff line change
Expand Up @@ -291,17 +291,9 @@ static ndpi_protocol_category_t ndpi_http_check_content(struct ndpi_detection_mo
if(packet->content_disposition_line.len > attachment_len) {
u_int8_t filename_len = packet->content_disposition_line.len - attachment_len;
int i;
if(packet->content_disposition_line.ptr[attachment_len] == '\"'){
//case: filename="file_name"
flow->http.filename = (char*)malloc((filename_len-3)*sizeof(char));
flow->http.filename = strncpy(flow->http.filename, (char*)packet->content_disposition_line.ptr+attachment_len+1, filename_len-2);
}
else{
//case: filename=file_name
flow->http.filename = (char*)malloc((filename_len-1)*sizeof(char));
flow->http.filename = strncpy(flow->http.filename, (char*)packet->content_disposition_line.ptr+attachment_len, filename_len);
}

flow->http.filename = ndpi_malloc(filename_len-1);
flow->http.filename = strncpy(flow->http.filename, (char*)packet->content_disposition_line.ptr+attachment_len, filename_len);
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if(filename_len > ATTACHMENT_LEN) {
attachment_len += filename_len-ATTACHMENT_LEN-1;
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