X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Finternet.cc;h=ca72399f3f547076bafcceb707dfa7f7e44d70e2;hb=8963f0007af1a312017b9627c18b82ec2a577591;hp=615ced7892a9037a4509c71fe1d16a94cda1e6be;hpb=3103251ddc540d65ee4a7c21837342d404f9596e;p=dcpomatic.git

diff --git a/src/lib/internet.cc b/src/lib/internet.cc
index 615ced789..ca72399f3 100644
--- a/src/lib/internet.cc
+++ b/src/lib/internet.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,13 +18,14 @@
 
 */
 
+
 #include "scoped_temporary.h"
 #include "compose.hpp"
 #include "exceptions.h"
 #include "cross.h"
+#include "util.h"
 #include <curl/curl.h>
 #include <zip.h>
-#include <boost/function.hpp>
 #include <boost/optional.hpp>
 #include <boost/filesystem.hpp>
 #include <boost/algorithm/string.hpp>
@@ -32,31 +33,79 @@
 
 #include "i18n.h"
 
-using std::string;
+
+using std::function;
 using std::list;
+using std::string;
 using boost::optional;
-using boost::function;
 using boost::algorithm::trim;
 
 
+static size_t
+ls_url_data (void* buffer, size_t size, size_t nmemb, void* output)
+{
+	string* s = reinterpret_cast<string*>(output);
+	char* c = reinterpret_cast<char*>(buffer);
+	for (size_t i = 0; i < (size * nmemb); ++i) {
+		*s += c[i];
+	}
+	return nmemb;
+}
+
+
+list<string>
+ls_url (string url)
+{
+	auto curl = curl_easy_init ();
+	curl_easy_setopt (curl, CURLOPT_URL, url.c_str());
+	curl_easy_setopt (curl, CURLOPT_DIRLISTONLY, 1);
+
+	string ls;
+	curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, ls_url_data);
+	curl_easy_setopt (curl, CURLOPT_WRITEDATA, &ls);
+	auto const cr = curl_easy_perform (curl);
+
+	if (cr != CURLE_OK) {
+		return list<string>();
+	}
+
+	list<string> result;
+	result.push_back("");
+	for (size_t i = 0; i < ls.size(); ++i) {
+		if (ls[i] == '\n') {
+			result.push_back("");
+		} else {
+			result.back() += ls[i];
+		}
+	}
+
+	result.pop_back ();
+	return result;
+}
+
+
 static size_t
 get_from_url_data (void* buffer, size_t size, size_t nmemb, void* stream)
 {
-	FILE* f = reinterpret_cast<FILE*> (stream);
+	auto f = reinterpret_cast<FILE*> (stream);
 	return fwrite (buffer, size, nmemb, f);
 }
 
+
 optional<string>
-get_from_url (string url, bool pasv, ScopedTemporary& temp)
+get_from_url (string url, bool pasv, bool skip_pasv_ip, ScopedTemporary& temp)
 {
-	CURL* curl = curl_easy_init ();
+	auto curl = curl_easy_init ();
 	curl_easy_setopt (curl, CURLOPT_URL, url.c_str());
 
-	FILE* f = temp.open ("w");
+	auto f = temp.open ("wb");
 	curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, get_from_url_data);
 	curl_easy_setopt (curl, CURLOPT_WRITEDATA, f);
 	curl_easy_setopt (curl, CURLOPT_FTP_USE_EPSV, 0);
 	curl_easy_setopt (curl, CURLOPT_FTP_USE_EPRT, 0);
+	if (skip_pasv_ip) {
+		curl_easy_setopt (curl, CURLOPT_FTP_SKIP_PASV_IP, 1);
+	}
 	if (!pasv) {
 		curl_easy_setopt (curl, CURLOPT_FTPPORT, "-");
 	}
@@ -75,28 +124,29 @@ get_from_url (string url, bool pasv, ScopedTemporary& temp)
 	return optional<string>();
 }
 
+
 optional<string>
-get_from_url (string url, bool pasv, function<void (boost::filesystem::path)> load)
+get_from_url (string url, bool pasv, bool skip_pasv_ip, function<optional<string> (boost::filesystem::path)> load)
 {
 	ScopedTemporary temp;
-	optional<string> e = get_from_url (url, pasv, temp);
+	auto e = get_from_url (url, pasv, skip_pasv_ip, temp);
 	if (e) {
 		return e;
 	}
-	load (temp.file());
-	return optional<string>();
+	return load (temp.file());
 }
 
+
 /** @param url URL of ZIP file.
  *  @param file Filename within ZIP file.
  *  @param load Function passed a (temporary) filesystem path of the unpacked file.
  */
 optional<string>
-get_from_zip_url (string url, string file, bool pasv, function<void (boost::filesystem::path)> load)
+get_from_zip_url (string url, string file, bool pasv, bool skip_pasv_ip, function<optional<string> (boost::filesystem::path)> load)
 {
 	/* Download the ZIP file to temp_zip */
 	ScopedTemporary temp_zip;
-	optional<string> e = get_from_url (url, pasv, temp_zip);
+	auto e = get_from_url (url, pasv, skip_pasv_ip, temp_zip);
 	if (e) {
 		return e;
 	}
@@ -109,20 +159,21 @@ get_from_zip_url (string url, string file, bool pasv, function<void (boost::file
 	   Centos 6, Centos 7, Debian 7 and Debian 8.
 	*/
 
-	FILE* zip_file = fopen_boost (temp_zip.file (), "rb");
+	auto zip_file = fopen_boost (temp_zip.file (), "rb");
 	if (!zip_file) {
 		return optional<string> (_("Could not open downloaded ZIP file"));
 	}
 
-	zip_source_t* zip_source = zip_source_filep_create (zip_file, 0, -1, 0);
+	auto zip_source = zip_source_filep_create (zip_file, 0, -1, 0);
 	if (!zip_source) {
 		return optional<string> (_("Could not open downloaded ZIP file"));
 	}
 
 	zip_error_t error;
-	zip_t* zip = zip_open_from_source (zip_source, ZIP_RDONLY, &error);
+	zip_error_init (&error);
+	auto zip = zip_open_from_source (zip_source, ZIP_RDONLY, &error);
 	if (!zip) {
-		return String::compose (_("Could not open downloaded ZIP file (%1: %2)"), error.sys_err, error.str ? error.str : "");
+		return String::compose (_("Could not open downloaded ZIP file (%1:%2: %3)"), error.zip_err, error.sys_err, error.str ? error.str : "");
 	}
 
 #else
@@ -135,11 +186,11 @@ get_from_zip_url (string url, string file, bool pasv, function<void (boost::file
 	}
 
 	ScopedTemporary temp_cert;
-	FILE* f = temp_cert.open ("wb");
+	auto f = temp_cert.open ("wb");
 	char buffer[4096];
 	while (true) {
 		int const N = zip_fread (file_in_zip, buffer, sizeof (buffer));
-		fwrite (buffer, 1, N, f);
+		checked_fwrite (buffer, N, f, temp_cert.file());
 		if (N < int (sizeof (buffer))) {
 			break;
 		}
@@ -148,6 +199,5 @@ get_from_zip_url (string url, string file, bool pasv, function<void (boost::file
 	zip_close (zip);
 	temp_cert.close ();
 
-	load (temp_cert.file ());
-	return optional<string> ();
+	return load (temp_cert.file());
 }