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Issue 225 - dynamically load libcurl in http_upload. patch by Andrew Schultz <ajschult@verizon.net>, r=Liu Li
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@232 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek
parent
f0a07749af
commit
68b4798eb4
@ -28,6 +28,7 @@
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <cassert>
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#include <dlfcn.h>
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#include <curl/curl.h>
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#include <curl/easy.h>
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#include <curl/types.h>
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@ -66,69 +67,102 @@ bool HTTPUpload::SendRequest(const string &url,
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if (!CheckParameters(parameters))
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return false;
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CURL *curl = curl_easy_init();
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CURLcode err_code = CURLE_OK;
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void *curl_lib = dlopen("libcurl.so", RTLD_NOW);
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if (!curl_lib) {
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curl_lib = dlopen("libcurl.so.4", RTLD_NOW);
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}
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if (!curl_lib) {
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curl_lib = dlopen("libcurl.so.3", RTLD_NOW);
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}
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if (!curl_lib) {
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return false;
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}
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CURL* (*curl_easy_init)(void);
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*(void**) (&curl_easy_init) = dlsym(curl_lib, "curl_easy_init");
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CURL *curl = (*curl_easy_init)();
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if (error_description != NULL)
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*error_description = "No Error";
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if (curl) {
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curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
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curl_easy_setopt(curl, CURLOPT_USERAGENT, kUserAgent);
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// Set proxy information if necessary.
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if (!proxy.empty())
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curl_easy_setopt(curl, CURLOPT_PROXY, proxy.c_str());
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if (!proxy_user_pwd.empty())
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curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());
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if (!curl) {
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dlclose(curl_lib);
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return false;
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}
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struct curl_httppost *formpost = NULL;
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struct curl_httppost *lastptr = NULL;
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// Add form data.
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map<string, string>::const_iterator iter = parameters.begin();
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for (; iter != parameters.end(); ++iter)
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curl_formadd(&formpost, &lastptr,
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CURLFORM_COPYNAME, iter->first.c_str(),
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CURLFORM_COPYCONTENTS, iter->second.c_str(),
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CURLFORM_END);
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CURLcode err_code = CURLE_OK;
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CURLcode (*curl_easy_setopt)(CURL *, CURLoption, ...);
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*(void**) (&curl_easy_setopt) = dlsym(curl_lib, "curl_easy_setopt");
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(*curl_easy_setopt)(curl, CURLOPT_URL, url.c_str());
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(*curl_easy_setopt)(curl, CURLOPT_USERAGENT, kUserAgent);
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// Set proxy information if necessary.
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if (!proxy.empty())
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(*curl_easy_setopt)(curl, CURLOPT_PROXY, proxy.c_str());
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if (!proxy_user_pwd.empty())
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(*curl_easy_setopt)(curl, CURLOPT_PROXYUSERPWD, proxy_user_pwd.c_str());
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// Add form file.
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curl_formadd(&formpost, &lastptr,
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CURLFORM_COPYNAME, file_part_name.c_str(),
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CURLFORM_FILE, upload_file.c_str(),
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struct curl_httppost *formpost = NULL;
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struct curl_httppost *lastptr = NULL;
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// Add form data.
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CURLFORMcode (*curl_formadd)(struct curl_httppost **, struct curl_httppost **, ...);
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*(void**) (&curl_formadd) = dlsym(curl_lib, "curl_formadd");
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map<string, string>::const_iterator iter = parameters.begin();
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for (; iter != parameters.end(); ++iter)
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(*curl_formadd)(&formpost, &lastptr,
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CURLFORM_COPYNAME, iter->first.c_str(),
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CURLFORM_COPYCONTENTS, iter->second.c_str(),
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CURLFORM_END);
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curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
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// Add form file.
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(*curl_formadd)(&formpost, &lastptr,
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CURLFORM_COPYNAME, file_part_name.c_str(),
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CURLFORM_FILE, upload_file.c_str(),
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CURLFORM_END);
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// Disable 100-continue header.
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struct curl_slist *headerlist = NULL;
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char buf[] = "Expect:";
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headerlist = curl_slist_append(headerlist, buf);
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curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
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(*curl_easy_setopt)(curl, CURLOPT_HTTPPOST, formpost);
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if (response_body != NULL) {
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA,
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reinterpret_cast<void *>(response_body));
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}
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// Disable 100-continue header.
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struct curl_slist *headerlist = NULL;
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char buf[] = "Expect:";
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struct curl_slist* (*curl_slist_append)(struct curl_slist *, const char *);
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*(void**) (&curl_slist_append) = dlsym(curl_lib, "curl_slist_append");
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headerlist = (*curl_slist_append)(headerlist, buf);
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(*curl_easy_setopt)(curl, CURLOPT_HTTPHEADER, headerlist);
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err_code = curl_easy_perform(curl);
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#ifndef NDEBUG
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if (err_code != CURLE_OK)
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fprintf(stderr, "Failed to send http request to %s, error: %s\n",
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url.c_str(),
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curl_easy_strerror(err_code));
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#endif
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if (error_description != NULL)
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*error_description = curl_easy_strerror(err_code);
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if (curl != NULL)
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curl_easy_cleanup(curl);
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if (formpost != NULL)
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curl_formfree(formpost);
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if (headerlist != NULL)
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curl_slist_free_all(headerlist);
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return err_code == CURLE_OK;
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if (response_body != NULL) {
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(*curl_easy_setopt)(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
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(*curl_easy_setopt)(curl, CURLOPT_WRITEDATA,
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reinterpret_cast<void *>(response_body));
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}
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return false;
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CURLcode (*curl_easy_perform)(CURL *);
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*(void**) (&curl_easy_perform) = dlsym(curl_lib, "curl_easy_perform");
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err_code = (*curl_easy_perform)(curl);
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#ifndef NDEBUG
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const char* (*curl_easy_strerror)(CURLcode);
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*(void**) (&curl_easy_strerror) = dlsym(curl_lib, "curl_easy_strerror");
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if (err_code != CURLE_OK)
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fprintf(stderr, "Failed to send http request to %s, error: %s\n",
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url.c_str(),
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(*curl_easy_strerror)(err_code));
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#endif
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if (error_description != NULL)
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*error_description = (*curl_easy_strerror)(err_code);
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void (*curl_easy_cleanup)(CURL *);
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*(void**) (&curl_easy_cleanup) = dlsym(curl_lib, "curl_easy_cleanup");
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(*curl_easy_cleanup)(curl);
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if (formpost != NULL) {
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void (*curl_formfree)(struct curl_httppost *);
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*(void**) (&curl_formfree) = dlsym(curl_lib, "curl_formfree");
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(*curl_formfree)(formpost);
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}
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if (headerlist != NULL) {
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void (*curl_slist_free_all)(struct curl_slist *);
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*(void**) (&curl_slist_free_all) = dlsym(curl_lib, "curl_slist_free_all");
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(*curl_slist_free_all)(headerlist);
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}
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dlclose(curl_lib);
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return err_code == CURLE_OK;
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}
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// static
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@ -12,10 +12,10 @@ DUMP_UPLOAD_OBJ=minidump_upload.o http_upload.o
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SYM_UPLOAD_OBJ=sym_upload.o http_upload.o
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minidump_upload:$(DUMP_UPLOAD_OBJ)
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$(CXX) $(CXXFLAGS) `curl-config --libs` -o $@ $^
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$(CXX) $(CXXFLAGS) -ldl -o $@ $^
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sym_upload:$(SYM_UPLOAD_OBJ)
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$(CXX) $(CXXFLAGS) `curl-config --libs` -o $@ $^
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$(CXX) $(CXXFLAGS) -ldl -o $@ $^
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http_upload.o:../../../common/linux/http_upload.cc
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$(CXX) $(CXXFLAGS) `curl-config --cflags` -c $^
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