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Fix #762

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This commit is contained in:
yhirose 2020-11-30 21:46:36 -05:00
parent 9c0c98b1ed
commit 5dd605d3a2
2 changed files with 74 additions and 56 deletions
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58
httplib.h
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@ -1340,14 +1340,6 @@ inline std::string from_i_to_hex(size_t n) {
return ret;
}
inline bool start_with(const std::string &a, const std::string &b) {
if (a.size() < b.size()) { return false; }
for (size_t i = 0; i < b.size(); i++) {
if (::tolower(a[i]) != ::tolower(b[i])) { return false; }
}
return true;
}
inline size_t to_utf8(int code, char *buff) {
if (code < 0x0080) {
buff[0] = (code & 0x7F);
@ -3126,7 +3118,7 @@ public:
static const std::string header_name = "content-type:";
const auto header = buf_.substr(0, pos);
if (start_with(header, header_name)) {
if (start_with_case_ignore(header, header_name)) {
file_.content_type = trim_copy(header.substr(header_name.size()));
} else {
std::smatch m;
@ -3148,15 +3140,7 @@ public:
auto pattern = crlf_ + dash_;
if (pattern.size() > buf_.size()) { return true; }
auto pos = buf_.find(pattern);
if (pos == std::string::npos) {
pos = buf_.size();
while (pos > 0) {
auto c = buf_[pos - 1];
if (c != '\r' && c != '\n' && c != '-') { break; }
pos--;
}
}
auto pos = find_string(buf_, pattern);
if (!content_callback(buf_.data(), pos)) {
is_valid_ = false;
@ -3166,7 +3150,6 @@ public:
off_ += pos;
buf_.erase(0, pos);
}
{
auto pattern = crlf_ + dash_ + boundary_;
if (pattern.size() > buf_.size()) { return true; }
@ -3230,6 +3213,43 @@ private:
file_.content_type.clear();
}
bool start_with_case_ignore(const std::string &a,
const std::string &b) const {
if (a.size() < b.size()) { return false; }
for (size_t i = 0; i < b.size(); i++) {
if (::tolower(a[i]) != ::tolower(b[i])) { return false; }
}
return true;
}
bool start_with(const std::string &a, size_t off,
const std::string &b) const {
if (a.size() - off < b.size()) { return false; }
for (size_t i = 0; i < b.size(); i++) {
if (a[i + off] != b[i]) { return false; }
}
return true;
}
size_t find_string(const std::string &s, const std::string &pattern) const {
auto c = pattern.front();
size_t off = 0;
while (off < s.size()) {
auto pos = s.find(c, off);
if (pos == std::string::npos) { return s.size(); }
auto rem = s.size() - pos;
if (pattern.size() > rem) { return pos; }
if (start_with(s, pos, pattern)) { return pos; }
off = pos + 1;
}
return s.size();
}
std::string boundary_;
std::string buf_;