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download and unpack .zip links (for homebrew) fix #12
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| #include <zip.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <stdio.h> | ||
| #include <sys/stat.h> | ||
| #include <dirent.h> | ||
|
|
||
| #include "pkgi.h" | ||
| #include "pkgi_download.h" | ||
|
|
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| #define UNZIP_BUF_SIZE 0x20000 | ||
|
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| static inline uint64_t min64(uint64_t a, uint64_t b) | ||
| { | ||
| return a < b ? a : b; | ||
| } | ||
|
|
||
| int extract_zip(const char* zip_file) | ||
| { | ||
| char path[256]; | ||
| uint8_t* buffer; | ||
| int64_t zsize = pkgi_get_size(zip_file); | ||
| struct zip* archive = zip_open(zip_file, ZIP_RDONLY | ZIP_CHECKCONS, NULL); | ||
| int files = zip_get_num_files(archive); | ||
|
|
||
| if (files <= 0) { | ||
| LOG("Empty ZIP file."); | ||
| zip_close(archive); | ||
| return 0; | ||
| } | ||
|
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| buffer = malloc(UNZIP_BUF_SIZE); | ||
| if (!buffer) | ||
| return 0; | ||
|
|
||
| LOG("Extracting %s to <%s>...", zip_file, dest_path); | ||
|
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| for (int i = 0; i < files; i++) { | ||
| const char* filename = zip_get_name(archive, i, 0); | ||
|
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| update_install_progress(filename, (zsize * i)/files); | ||
| LOG("Unzip [%d/%d] '%s'...", i+1, files, filename); | ||
|
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||
| if (!filename) | ||
| continue; | ||
|
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||
| if (filename[0] == '/') | ||
| filename++; | ||
|
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| if (strncasecmp(filename, "PSP/GAME/", 9) == 0) | ||
| filename += 9; | ||
|
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| snprintf(path, sizeof(path)-1, "%s/PSP/GAME/%s", pkgi_get_storage_device(), filename); | ||
| char* slash = strrchr(path, '/'); | ||
| *slash = 0; | ||
| pkgi_mkdirs(path); | ||
| *slash = '/'; | ||
|
|
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| if (filename[strlen(filename) - 1] == '/') | ||
| continue; | ||
|
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| struct zip_stat st; | ||
| if (zip_stat_index(archive, i, 0, &st)) { | ||
| LOG("Unable to access file %s in zip.", filename); | ||
| continue; | ||
| } | ||
| struct zip_file* zfd = zip_fopen_index(archive, i, 0); | ||
| if (!zfd) { | ||
| LOG("Unable to open file %s in zip.", filename); | ||
| continue; | ||
| } | ||
|
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||
| FILE* tfd = fopen(path, "wb"); | ||
| if(!tfd) { | ||
| free(buffer); | ||
| zip_fclose(zfd); | ||
| zip_close(archive); | ||
| LOG("Error opening temporary file '%s'.", path); | ||
| return 0; | ||
| } | ||
|
|
||
| uint64_t pos = 0, count; | ||
| while (pos < st.size) { | ||
| count = min64(UNZIP_BUF_SIZE, st.size - pos); | ||
| if (zip_fread(zfd, buffer, count) != count) { | ||
| free(buffer); | ||
| fclose(tfd); | ||
| zip_fclose(zfd); | ||
| zip_close(archive); | ||
| LOG("Error reading from zip."); | ||
| return 0; | ||
| } | ||
|
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||
| fwrite(buffer, count, 1, tfd); | ||
| pos += count; | ||
| } | ||
|
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| zip_fclose(zfd); | ||
| fclose(tfd); | ||
|
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| update_install_progress(NULL, zsize * (i+1)/files); | ||
| } | ||
|
|
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| if (archive) { | ||
| zip_close(archive); | ||
| } | ||
|
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| update_install_progress(NULL, zsize); | ||
| free(buffer); | ||
|
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| return files; | ||
| } |