greenplumn s3http_headers 源码
greenplumn s3http_headers 代码
文件路径：/gpcontrib/gpcloud/src/s3http_headers.cpp
#include "s3http_headers.h"
HTTPHeaders::HTTPHeaders() {
this->header_list = NULL;
}
HTTPHeaders::~HTTPHeaders() {
this->FreeList();
}
bool HTTPHeaders::Add(HeaderField f, const string &v) {
if (v.empty()) {
return false;
} else {
this->fields[f] = v;
return true;
}
}
void HTTPHeaders::Disable(HeaderField f) {
this->disabledFields.insert(f);
}
const char *HTTPHeaders::Get(HeaderField f) {
return this->fields[f].empty() ? NULL : this->fields[f].c_str();
}
// Convert this->fields map to header list used by curl.
void HTTPHeaders::CreateList() {
struct curl_slist *headers = NULL;
std::map<HeaderField, std::string>::iterator it;
for (it = this->fields.begin(); it != this->fields.end(); it++) {
std::stringstream sstr;
sstr << GetFieldString(it->first) << ": " << it->second;
headers = curl_slist_append(headers, sstr.str().c_str());
}
std::set<HeaderField>::iterator it2;
for (it2 = this->disabledFields.begin(); it2 != this->disabledFields.end(); it2++) {
std::stringstream sstr;
sstr << GetFieldString(*it2) << ":";
headers = curl_slist_append(headers, sstr.str().c_str());
}
this->header_list = headers;
}
struct curl_slist *HTTPHeaders::GetList() {
return this->header_list;
}
void HTTPHeaders::FreeList() {
if (this->header_list) {
curl_slist_free_all(this->header_list);
this->header_list = NULL;
}
}
const char *GetFieldString(HeaderField f) {
switch (f) {
case HOST:
return "Host";
case RANGE:
return "Range";
case DATE:
return "Date";
case CONTENTLENGTH:
return "Content-Length";
case CONTENTMD5:
return "Content-MD5";
case CONTENTTYPE:
return "Content-Type";
case EXPECT:
return "Expect";
case AUTHORIZATION:
return "Authorization";
case ETAG:
return "ETag";
case X_AMZ_DATE:
return "x-amz-date";
case X_AMZ_CONTENT_SHA256:
return "x-amz-content-sha256";
case X_AMZ_SERVER_SIDE_ENCRYPTION:
return "x-amz-server-side-encryption";
default:
return "Unknown";
}
}
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