*/
+#ifdef USE_CURL
+#include <curl/curl.h>
+#endif
#include "miniz.h"
#include "opendocument.h"
#include "opendocument-content.h"
+#include "transclude.h"
#include "writer.h"
#include "zip.h"
}
+static bool add_asset_from_file(mz_zip_archive * pZip, asset * a, const char * destination, const char * directory) {
+ if (!directory)
+ return false;
+
+ char * path = path_from_dir_base(directory, a->url);
+ mz_bool status;
+ bool result = false;
+
+ DString * buffer = scan_file(path);
+
+ if (buffer && buffer->currentStringLength > 0) {
+ status = mz_zip_writer_add_mem(pZip, destination, buffer->str, buffer->currentStringLength, MZ_BEST_COMPRESSION);
+
+ if (!status) {
+ fprintf(stderr, "Error adding asset '%s' to zip.\n", destination);
+ }
+
+ d_string_free(buffer, true);
+ result = true;
+ }
+
+ free(path);
+
+ return result;
+}
+
+
/// Create metadata for OpenDocument
char * opendocument_metadata(mmd_engine * e, scratch_pad * scratch) {
DString * out = d_string_new("");
"xmlns:ooow=\"http://openoffice.org/2004/writer\"\n" \
"xmlns:oooc=\"http://openoffice.org/2004/calc\"\n" \
"xmlns:dom=\"http://www.w3.org/2001/xml-events\"\n" \
+"xmlns:xforms=\"http://www.w3.org/2002/xforms\"\n" \
+"xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"\n" \
+"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n" \
"xmlns:rpt=\"http://openoffice.org/2005/report\"\n" \
"xmlns:of=\"urn:oasis:names:tc:opendocument:xmlns:of:1.2\"\n" \
"xmlns:xhtml=\"http://www.w3.org/1999/xhtml\"\n" \
"xmlns:calcext=\"urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0\"\n" \
"xmlns:loext=\"urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0\"\n" \
"xmlns:field=\"urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0\"\n" \
+"xmlns:formx=\"urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0\"\n" \
"xmlns:css3t=\"http://www.w3.org/TR/css3-text/\"\n" \
"office:version=\"1.2\">\n");
}
+#ifdef USE_CURL
+// Dynamic buffer for downloading files in memory
+// Based on https://curl.haxx.se/libcurl/c/getinmemory.html
+
+struct MemoryStruct {
+ char * memory;
+ size_t size;
+};
+
+
+static size_t write_memory(void * contents, size_t size, size_t nmemb, void * userp) {
+ size_t realsize = size * nmemb;
+ struct MemoryStruct * mem = (struct MemoryStruct *)userp;
+
+ mem->memory = realloc(mem->memory, mem->size + realsize + 1);
+ if (mem->memory == NULL) {
+ // Out of memory
+ fprintf(stderr, "Out of memory\n");
+ return 0;
+ }
+
+ memcpy(&(mem->memory[mem->size]), contents, realsize);
+ mem->size += realsize;
+ mem->memory[mem->size] = 0;
+
+ return realsize;
+}
+
+// Add assets to zipfile using libcurl
+static void add_assets(mz_zip_archive * pZip, mmd_engine * e, const char * directory) {
+ asset * a, * a_tmp;
+
+ if (e->asset_hash){
+ CURL * curl;
+ CURLcode res;
+
+ struct MemoryStruct chunk;
+ chunk.memory = malloc(1);
+ chunk.size = 0;
+
+ char destination[100] = "Pictures/";
+ destination[45] = '\0';
+
+ mz_bool status;
+
+ curl_global_init(CURL_GLOBAL_ALL);
+ curl = curl_easy_init();
+
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_memory);
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
+ curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0");
+
+ HASH_ITER(hh, e->asset_hash, a, a_tmp) {
+ curl_easy_setopt(curl, CURLOPT_URL, a->url);
+ res = curl_easy_perform(curl);
+
+ memcpy(&destination[9], a->asset_path, 36);
+
+ if (res != CURLE_OK) {
+ // Attempt to add asset from local file
+ if (!add_asset_from_file(pZip, a, destination, directory)) {
+ fprintf(stderr, "Unable to store '%s' in EPUB\n", a->url);
+ }
+ } else {
+ // Store downloaded file in zip
+ status = mz_zip_writer_add_mem(pZip, destination, chunk.memory, chunk.size, MZ_BEST_COMPRESSION);
+
+ if (!status) {
+ fprintf(stderr, "Error adding asset '%s' to zip as '%s'.\n", a->asset_path, destination);
+ }
+ }
+ }
+ }
+}
+
+#else
+// Add local assets only (libcurl not available)
+static void add_assets(mz_zip_archive * pZip, mmd_engine * e, const char * directory) {
+ asset * a, * a_tmp;
+
+ if (e->asset_hash){
+
+ char destination[100] = "Pictures/";
+ destination[45] = '\0';
+
+ mz_bool status;
+
+ HASH_ITER(hh, e->asset_hash, a, a_tmp) {
+
+ memcpy(&destination[9], a->asset_path, 36);
+
+ // Attempt to add asset from local file
+ if (!add_asset_from_file(pZip, a, destination, directory)) {
+ fprintf(stderr, "Unable to store '%s' in EPUB\n", a->url);
+ }
+ }
+ }
+}
+#endif
+
+
/// Create manifest file for OpenDocument
char * opendocument_manifest_file(mmd_engine * e, int format) {
DString * out = d_string_new("");
print_const("\t<manifest:file-entry manifest:full-path=\"settings.xml\" manifest:media-type=\"text/xml\"/>\n");
print_const("\t<manifest:file-entry manifest:full-path=\"meta.xml\" manifest:media-type=\"text/xml\"/>\n");
+ // Add assets
+ if (e->asset_hash) {
+ asset * a, * a_tmp;
+
+ print_const("\t<manifest:file-entry manifest:full-path=\"Pictures/\" manifest:media-type=\"\"/>\n");
+
+ HASH_ITER(hh, e->asset_hash, a, a_tmp) {
+ printf("\t<manifest:file-entry manifest:full-path=\"Pictures/%s\" manifest:media-type=\"image/png\"/>\n", a->asset_path);
+ }
+ }
+
// Close
print_const("\n</manifest:manifest>");
fprintf(stderr, "Error adding directory to zip.\n");
}
-// status = mz_zip_writer_add_mem(zip, "Pictures/", NULL, 0, MZ_BEST_COMPRESSION);
+ status = mz_zip_writer_add_mem(zip, "Pictures/", NULL, 0, MZ_BEST_COMPRESSION);
if (!status) {
fprintf(stderr, "Error adding directory to zip.\n");
}
}
- // TODO: Add image assets
+ // Add image assets
+ add_assets(zip, e, directory);
+
// Clean up
free(result->str);
projects / multimarkdown / commitdiff