introduce mimewriter classess for gsoap mime streaming

Signed-off-by: Michael Krelin <hacker@klever.net>

2 files changed, 32 insertions, 0 deletions

diff --git a/src/eyetil.cc b/src/eyetil.cc
index 6ccc4ae..fba8724 100644
--- a/src/eyetil.cc
+++ b/src/eyetil.cc
@@ -170,24 +170,34 @@ tarchive_t::~tarchive_t() {
 
 bool tarchive_t::read_next_header() {
     assert(a);
     return archive_read_next_header(a,&e)==ARCHIVE_OK;
 }
 
 std::string tarchive_t::entry_pathname() {
     assert(a); assert(e);
     return archive_entry_pathname(e);
 }
 
 bool tarchive_t::read_data_into_fd(int fd) {
     assert(a);
     return archive_read_data_into_fd(a,fd)==ARCHIVE_OK;
 }
 
 
 binary_t integrity_digest(const void *ptr,size_t size,const std::string& ukey) {
     md5_digester rv;
     std::transform( (block512_t*)ptr, ((block512_t*)ptr)+size/sizeof(block512_t),
             rv.updater<uint16_t>(), block512_t::tcpcksum );
     rv.update( binary_t(ukey) );
     return rv.final();
 }
+
+mimewrite_tarfile::mimewrite_tarfile(tmpdir_t& d) {
+    f.open((fn=d.get_file("the-tarfile.tar")).c_str(),std::ios_base::in|std::ios_base::out|std::ios_base::trunc|std::ios_base::binary);
+}
+mimewrite_tarfile::~mimewrite_tarfile() {
+    unlink(fn.c_str());
+}
+int mimewrite_tarfile::write(const char *buf,size_t len) {
+    return f.write(buf,len) ? (idigest.update(buf,len),SOAP_OK) : SOAP_ERR;
+}
diff --git a/src/eyetil.h b/src/eyetil.h
index 8784cb4..64948d0 100644
--- a/src/eyetil.h
+++ b/src/eyetil.h
@@ -1,32 +1,34 @@
 #ifndef __EYETIL_H
 #define __EYETIL_H
 
 #include <vector>
 #include <string>
+#include <fstream>
 #include <archive.h>
 #include <archive_entry.h>
 #include "openssl/md5.h"
+#include "soapH.h"
 
 struct throwable_exit {
     int rc;
     throwable_exit(int rc_) : rc(rc_) { }
 };
 
 class binary_t : public std::vector<unsigned char> {
     public:
         binary_t() { }
         binary_t(size_type  n) : std::vector<unsigned char>(n) { }
         binary_t(const std::string& h) { from_hex(h); }
         binary_t(const void *d,size_t s) { from_data(d,s); }
 
         binary_t& from_hex(const std::string& h);
         binary_t& from_data(const void *d,size_t s);
         binary_t& make_nonce();
 
         std::string hex() const;
         binary_t md5() const;
 };
 
 struct md5_digester {
     MD5_CTX ctx;
     md5_digester() { init(); }
@@ -89,28 +91,48 @@ class tmpdir_t {
     public:
         std::string dir;
 
         tmpdir_t(const std::string& dt);
         ~tmpdir_t();
 
         std::string get_file(const std::string& f);
 };
 
 class tarchive_t {
     public:
         struct archive *a;
         struct archive_entry *e;
 
         tarchive_t(void *p,size_t s);
         ~tarchive_t();
 
         bool read_next_header();
 
         std::string entry_pathname();
 
         bool read_data_into_fd(int fd);
 };
 
+struct mimewrite_base {
+    virtual ~mimewrite_base() { }
+
+    virtual int write(const char *buf,size_t len) = 0;
+    virtual void close() = 0;
+};
+struct mimewrite_string : public mimewrite_base {
+    std::string str;
+    int write(const char *buf,size_t len) { str.append(buf,len); return SOAP_OK; };
+    void close() { }
+};
+struct mimewrite_tarfile : public mimewrite_base {
+    std::string fn;
+    std::fstream f;
+    integrity_digester idigest;
+    mimewrite_tarfile(tmpdir_t& d);
+    ~mimewrite_tarfile();
+    int write(const char *buf,size_t len);
+    void close() { }
+};
 binary_t integrity_digest(const void *ptr,size_t size,
         const std::string& ukey);
 
 #endif /* __EYETIL_H */