From cb69299b9d59db0888e942025ae4915c6f32d066 Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Wed, 29 Apr 2015 18:58:07 +0200 Subject: added libquickmail and email registration --- 3rdParty/libquickmail/quickmail.c | 1123 +++++++++++++++++++++++++++++++++++++ 1 file changed, 1123 insertions(+) create mode 100644 3rdParty/libquickmail/quickmail.c (limited to '3rdParty/libquickmail/quickmail.c') diff --git a/3rdParty/libquickmail/quickmail.c b/3rdParty/libquickmail/quickmail.c new file mode 100644 index 0000000..ab65535 --- /dev/null +++ b/3rdParty/libquickmail/quickmail.c @@ -0,0 +1,1123 @@ +/* + This file is part of libquickmail. + + libquickmail is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + libquickmail is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with libquickmail. If not, see . +*/ + +#if defined(_WIN32) && defined(DLL_EXPORT) && !defined(BUILD_QUICKMAIL_DLL) +#define BUILD_QUICKMAIL_DLL +#endif +#include "quickmail.h" +#include +#include +#include +#include +#ifndef _WIN32 +#include +#endif +#if _MSC_VER +#define snprintf _snprintf +#define strdup _strdup +#endif +#ifndef NOCURL +#if (defined(STATIC) || defined(BUILD_QUICKMAIL_STATIC)) && !defined(CURL_STATICLIB) +#define CURL_STATICLIB +#endif +#include +#else +#include "smtpsocket.h" +#endif + +#define LIBQUICKMAIL_VERSION_MAJOR 0 +#define LIBQUICKMAIL_VERSION_MINOR 1 +#define LIBQUICKMAIL_VERSION_MICRO 18 + +#define VERSION_STRINGIZE_(major, minor, micro) #major"."#minor"."#micro +#define VERSION_STRINGIZE(major, minor, micro) VERSION_STRINGIZE_(major, minor, micro) + +#define LIBQUICKMAIL_VERSION VERSION_STRINGIZE(LIBQUICKMAIL_VERSION_MAJOR,LIBQUICKMAIL_VERSION_MINOR,LIBQUICKMAIL_VERSION_MICRO) + +#define NEWLINE "\r\n" +#define NEWLINELENGTH 2 +//#define NEWLINE "\n" +//#define NEWLINELENGTH 1 + +#define MIME_LINE_WIDTH 72 +#define BODY_BUFFER_SIZE 256 + +//definitions of the differen stages of generating the message data +#define MAILPART_INITIALIZE 0 +#define MAILPART_HEADER 1 +#define MAILPART_BODY 2 +#define MAILPART_BODY_DONE 3 +#define MAILPART_ATTACHMENT 4 +#define MAILPART_END 5 +#define MAILPART_DONE 6 + +static const char* default_mime_type = "text/plain"; + +//////////////////////////////////////////////////////////////////////// + +#define DEBUG_ERROR(errmsg) +static const char* ERRMSG_MEMORY_ALLOCATION_ERROR = "Memory allocation error"; + +//////////////////////////////////////////////////////////////////////// + +char* randomize_zeros (char* data) +{ + //replace all 0s with random digits + char* p = data; + while (*p) { + if (*p == '0') + *p = '0' + rand() % 10; + p++; + } + return data; +} + +char* str_append (char** data, const char* newdata) +{ + //append a string to the end of an existing string + char* p; + int len = (*data ? strlen(*data) : 0); + if ((p = (char*)realloc(*data, len + strlen(newdata) + 1)) == NULL) { + free(p); + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + *data = p; + strcpy(*data + len, newdata); + return *data; +} + +//////////////////////////////////////////////////////////////////////// + +struct email_info_struct { + int current; //must be zet to 0 + time_t timestamp; + char* from; + struct email_info_email_list_struct* to; + struct email_info_email_list_struct* cc; + struct email_info_email_list_struct* bcc; + char* subject; + char* header; + struct email_info_attachment_list_struct* bodylist; + struct email_info_attachment_list_struct* attachmentlist; + char* buf; + int buflen; + char* mime_boundary_body; + char* mime_boundary_part; + struct email_info_attachment_list_struct* current_attachment; + FILE* debuglog; + char dtable[64]; +}; + +//////////////////////////////////////////////////////////////////////// + +struct email_info_email_list_struct { + char* data; + struct email_info_email_list_struct* next; +}; + +void email_info_string_list_add (struct email_info_email_list_struct** list, const char* data) +{ + struct email_info_email_list_struct** p = list; + while (*p) + p = &(*p)->next; + if ((*p = (struct email_info_email_list_struct*)malloc(sizeof(struct email_info_email_list_struct))) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return; + } + (*p)->data = (data ? strdup(data) : NULL); + (*p)->next = NULL; +} + +void email_info_string_list_free (struct email_info_email_list_struct** list) +{ + struct email_info_email_list_struct* p = *list; + struct email_info_email_list_struct* current; + while (p) { + current = p; + p = current->next; + free(current->data); + free(current); + } + *list = NULL; +} + +char* email_info_string_list_concatenate (struct email_info_email_list_struct* list) +{ + char* result = NULL; + struct email_info_email_list_struct* listentry = list; + while (listentry) { + if (listentry->data && *listentry->data) { + if (result) + str_append(&result, "," NEWLINE "\t"); + str_append(&result, "<"); + str_append(&result, listentry->data); + str_append(&result, ">"); + } + listentry = listentry->next; + } + return result; +} + +//////////////////////////////////////////////////////////////////////// + +struct email_info_attachment_list_struct { + char* filename; + char* mimetype; + void* filedata; + void* handle; + quickmail_attachment_open_fn email_info_attachment_open; + quickmail_attachment_read_fn email_info_attachment_read; + quickmail_attachment_close_fn email_info_attachment_close; + quickmail_attachment_free_filedata_fn email_info_attachment_filedata_free; + struct email_info_attachment_list_struct* next; +}; + +struct email_info_attachment_list_struct* email_info_attachment_list_add (struct email_info_attachment_list_struct** list, const char* filename, const char* mimetype, void* filedata, quickmail_attachment_open_fn email_info_attachment_open, quickmail_attachment_read_fn email_info_attachment_read, quickmail_attachment_close_fn email_info_attachment_close, quickmail_attachment_free_filedata_fn email_info_attachment_filedata_free) +{ + struct email_info_attachment_list_struct** p = list; + while (*p) + p = &(*p)->next; + if ((*p = (struct email_info_attachment_list_struct*)malloc(sizeof(struct email_info_attachment_list_struct))) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + (*p)->filename = strdup(filename ? filename : "UNNAMED"); + (*p)->mimetype = (mimetype ? strdup(mimetype) : NULL); + (*p)->filedata = filedata; + (*p)->handle = NULL; + (*p)->email_info_attachment_open = email_info_attachment_open; + (*p)->email_info_attachment_read = email_info_attachment_read; + (*p)->email_info_attachment_close = email_info_attachment_close; + (*p)->email_info_attachment_filedata_free = email_info_attachment_filedata_free; + (*p)->next = NULL; + return *p; +} + +void email_info_attachment_list_free_entry (struct email_info_attachment_list_struct* current) +{ + if (current->handle) { + if (current->email_info_attachment_close) + current->email_info_attachment_close(current->handle); + //else + // free(current->handle); + current->handle = NULL; + } + if (current->filedata) { + if (current->email_info_attachment_filedata_free) + current->email_info_attachment_filedata_free(current->filedata); + else + free(current->filedata); + } + if (current->mimetype) + free(current->mimetype); + free(current->filename); + free(current); +} + +void email_info_attachment_list_free (struct email_info_attachment_list_struct** list) +{ + struct email_info_attachment_list_struct* p = *list; + struct email_info_attachment_list_struct* current; + while (p) { + current = p; + p = current->next; + email_info_attachment_list_free_entry(current); + } + *list = NULL; +} + +int email_info_attachment_list_delete (struct email_info_attachment_list_struct** list, const char* filename) +{ + struct email_info_attachment_list_struct** p = list; + while (*p) { + if (strcmp((*p)->filename, filename) == 0) { + struct email_info_attachment_list_struct* current = *p; + *p = current->next; + email_info_attachment_list_free_entry(current); + return 0; + } + p = &(*p)->next; + } + return -1; +} + +void email_info_attachment_list_close_handles (struct email_info_attachment_list_struct* list) +{ + struct email_info_attachment_list_struct* p = list; + while (p) { + if (p->handle) { + if (p->email_info_attachment_close) + p->email_info_attachment_close(p->handle); + //else + // free(p->handle); + p->handle = NULL; + } + p = p->next; + } +} + +//dummy attachment functions + +void* email_info_attachment_open_dummy (void* filedata) +{ + return &email_info_attachment_open_dummy; +} + +size_t email_info_attachment_read_dummy (void* handle, void* buf, size_t len) +{ + return 0; +} + +struct email_info_attachment_list_struct* email_info_attachment_list_add_dummy (struct email_info_attachment_list_struct** list, const char* filename, const char* mimetype) +{ + return email_info_attachment_list_add(list, filename, mimetype, NULL, email_info_attachment_open_dummy, email_info_attachment_read_dummy, NULL, NULL); +} + +//file attachment functions + +void* email_info_attachment_open_file (void* filedata) +{ + return (void*)fopen((char*)filedata, "rb"); +} + +size_t email_info_attachment_read_file (void* handle, void* buf, size_t len) +{ + return fread(buf, 1, len, (FILE*)handle); +} + +void email_info_attachment_close_file (void* handle) +{ + if (handle) + fclose((FILE*)handle); +} + +struct email_info_attachment_list_struct* email_info_attachment_list_add_file (struct email_info_attachment_list_struct** list, const char* path, const char* mimetype) +{ + //determine base filename + const char* basename = path + strlen(path); + while (basename != path) { + basename--; + if (*basename == '/' +#ifdef _WIN32 + || *basename == '\\' || *basename == ':' +#endif + ) { + basename++; + break; + } + } + return email_info_attachment_list_add(list, basename, mimetype, (void*)strdup(path), email_info_attachment_open_file, email_info_attachment_read_file, email_info_attachment_close_file, NULL); +} + +//memory attachment functions + +struct email_info_attachment_memory_filedata_struct { + char* data; + size_t datalen; + int mustfree; +}; + +struct email_info_attachment_memory_handle_struct { + const char* data; + size_t datalen; + size_t pos; +}; + +void* email_info_attachment_open_memory (void* filedata) +{ + struct email_info_attachment_memory_filedata_struct* data; + struct email_info_attachment_memory_handle_struct* result; + data = ((struct email_info_attachment_memory_filedata_struct*)filedata); + if (!data->data) + return NULL; + if ((result = (struct email_info_attachment_memory_handle_struct*)malloc(sizeof(struct email_info_attachment_memory_handle_struct))) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + result->data = data->data; + result->datalen = data->datalen; + result->pos = 0; + return result; +} + +size_t email_info_attachment_read_memory (void* handle, void* buf, size_t len) +{ + struct email_info_attachment_memory_handle_struct* h = (struct email_info_attachment_memory_handle_struct*)handle; + size_t n = (h->pos + len <= h->datalen ? len : h->datalen - h->pos); + memcpy(buf, h->data + h->pos, n); + h->pos += n; + return n; +} + +void email_info_attachment_close_memory (void* handle) +{ + if (handle) + free(handle); +} + +void email_info_attachment_filedata_free_memory (void* filedata) +{ + struct email_info_attachment_memory_filedata_struct* data = ((struct email_info_attachment_memory_filedata_struct*)filedata); + if (data) { + if (data->mustfree) + free(data->data); + free(data); + } +} + +struct email_info_attachment_list_struct* email_info_attachment_list_add_memory (struct email_info_attachment_list_struct** list, const char* filename, const char* mimetype, char* data, size_t datalen, int mustfree) +{ + struct email_info_attachment_memory_filedata_struct* filedata; + if ((filedata = (struct email_info_attachment_memory_filedata_struct*)malloc(sizeof(struct email_info_attachment_memory_filedata_struct))) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + filedata->data = data; + filedata->datalen = datalen; + filedata->mustfree = mustfree; + return email_info_attachment_list_add(list, filename, mimetype, filedata, email_info_attachment_open_memory, email_info_attachment_read_memory, email_info_attachment_close_memory, email_info_attachment_filedata_free_memory); +} + +//////////////////////////////////////////////////////////////////////// + +DLL_EXPORT_LIBQUICKMAIL const char* quickmail_get_version () +{ + return VERSION_STRINGIZE(LIBQUICKMAIL_VERSION_MAJOR, LIBQUICKMAIL_VERSION_MINOR, LIBQUICKMAIL_VERSION_MICRO) +#if defined(NOCURL) + "-light" +#endif + ; +} + +DLL_EXPORT_LIBQUICKMAIL int quickmail_initialize () +{ +#if defined(NOCURL) && defined(_WIN32) + static WSADATA wsaData; + int wsaerr = WSAStartup(MAKEWORD(1, 0), &wsaData); + if (wsaerr) + return -1; + atexit((void(*)())WSACleanup); +#endif + return 0; +} + +DLL_EXPORT_LIBQUICKMAIL quickmail quickmail_create (const char* from, const char* subject) +{ + int i; + struct email_info_struct* mailobj; + if ((mailobj = (struct email_info_struct*)malloc(sizeof(struct email_info_struct))) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + mailobj->current = 0; + mailobj->timestamp = time(NULL); + mailobj->from = (from ? strdup(from) : NULL); + mailobj->to = NULL; + mailobj->cc = NULL; + mailobj->bcc = NULL; + mailobj->subject = (subject ? strdup(subject) : NULL); + mailobj->header = NULL; + mailobj->bodylist = NULL; + mailobj->attachmentlist = NULL; + mailobj->buf = NULL; + mailobj->buflen = 0; + mailobj->mime_boundary_body = NULL; + mailobj->mime_boundary_part = NULL; + mailobj->current_attachment = NULL; + mailobj->debuglog = NULL; + for (i = 0; i < 26; i++) { + mailobj->dtable[i] = (char)('A' + i); + mailobj->dtable[26 + i] = (char)('a' + i); + } + for (i = 0; i < 10; i++) { + mailobj->dtable[52 + i] = (char)('0' + i); + } + mailobj->dtable[62] = '+'; + mailobj->dtable[63] = '/'; + srand(time(NULL)); + return mailobj; +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_destroy (quickmail mailobj) +{ + free(mailobj->from); + email_info_string_list_free(&mailobj->to); + email_info_string_list_free(&mailobj->cc); + email_info_string_list_free(&mailobj->bcc); + free(mailobj->subject); + free(mailobj->header); + email_info_attachment_list_free(&mailobj->bodylist); + email_info_attachment_list_free(&mailobj->attachmentlist); + free(mailobj->buf); + free(mailobj->mime_boundary_body); + free(mailobj->mime_boundary_part); + free(mailobj); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_set_from (quickmail mailobj, const char* from) +{ + free(mailobj->from); + mailobj->from = strdup(from); +} + +DLL_EXPORT_LIBQUICKMAIL const char* quickmail_get_from (quickmail mailobj) +{ + return mailobj->from; +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_to (quickmail mailobj, const char* email) +{ + email_info_string_list_add(&mailobj->to, email); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_cc (quickmail mailobj, const char* email) +{ + email_info_string_list_add(&mailobj->cc, email); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_bcc (quickmail mailobj, const char* email) +{ + email_info_string_list_add(&mailobj->bcc, email); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_set_subject (quickmail mailobj, const char* subject) +{ + free(mailobj->subject); + mailobj->subject = (subject ? strdup(subject) : NULL); +} + +DLL_EXPORT_LIBQUICKMAIL const char* quickmail_get_subject (quickmail mailobj) +{ + return mailobj->subject; +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_header (quickmail mailobj, const char* headerline) +{ + str_append(&mailobj->header, headerline); + str_append(&mailobj->header, NEWLINE); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_set_body (quickmail mailobj, const char* body) +{ + email_info_attachment_list_free(&mailobj->bodylist); + if (body) + email_info_attachment_list_add_memory(&mailobj->bodylist, default_mime_type, default_mime_type, strdup(body), strlen(body), 1); +} + +DLL_EXPORT_LIBQUICKMAIL char* quickmail_get_body (quickmail mailobj) +{ + size_t n; + char* p; + char* result = NULL; + size_t resultlen = 0; + if (mailobj->bodylist && (mailobj->bodylist->handle = mailobj->bodylist->email_info_attachment_open(mailobj->bodylist->filedata)) != NULL) { + do { + if ((p = (char*)realloc(result, resultlen + BODY_BUFFER_SIZE)) == NULL) { + free(result); + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + break; + } + result = p; + if ((n = mailobj->bodylist->email_info_attachment_read(mailobj->bodylist->handle, result + resultlen, BODY_BUFFER_SIZE)) > 0) + resultlen += n; + } while (n > 0); + if (mailobj->bodylist->email_info_attachment_close) + mailobj->bodylist->email_info_attachment_close(mailobj->bodylist->handle); + //else + // free(mailobj->bodylist->handle); + mailobj->bodylist->handle = NULL; + } + return result; +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_body_file (quickmail mailobj, const char* mimetype, const char* path) +{ + email_info_attachment_list_add(&mailobj->bodylist, (mimetype ? mimetype : default_mime_type), (mimetype ? mimetype : default_mime_type), (void*)strdup(path), email_info_attachment_open_file, email_info_attachment_read_file, email_info_attachment_close_file, NULL); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_body_memory (quickmail mailobj, const char* mimetype, char* data, size_t datalen, int mustfree) +{ + email_info_attachment_list_add_memory(&mailobj->bodylist, (mimetype ? mimetype : default_mime_type), (mimetype ? mimetype : default_mime_type), data, datalen, mustfree); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_body_custom (quickmail mailobj, const char* mimetype, char* data, quickmail_attachment_open_fn attachment_data_open, quickmail_attachment_read_fn attachment_data_read, quickmail_attachment_close_fn attachment_data_close, quickmail_attachment_free_filedata_fn attachment_data_filedata_free) +{ + email_info_attachment_list_add(&mailobj->bodylist, (mimetype ? mimetype : default_mime_type), (mimetype ? mimetype : default_mime_type), data, (attachment_data_open ? attachment_data_open : email_info_attachment_open_dummy), (attachment_data_read ? attachment_data_read : email_info_attachment_read_dummy), attachment_data_close, attachment_data_filedata_free); +} + +DLL_EXPORT_LIBQUICKMAIL int quickmail_remove_body (quickmail mailobj, const char* mimetype) +{ + return email_info_attachment_list_delete(&mailobj->bodylist, mimetype); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_list_bodies (quickmail mailobj, quickmail_list_attachment_callback_fn callback, void* callbackdata) +{ + struct email_info_attachment_list_struct* p = mailobj->bodylist; + while (p) { + callback(mailobj, p->filename, p->mimetype, p->email_info_attachment_open, p->email_info_attachment_read, p->email_info_attachment_close, callbackdata); + p = p->next; + } +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_attachment_file (quickmail mailobj, const char* path, const char* mimetype) +{ + email_info_attachment_list_add_file(&mailobj->attachmentlist, path, mimetype); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_attachment_memory (quickmail mailobj, const char* filename, const char* mimetype, char* data, size_t datalen, int mustfree) +{ + email_info_attachment_list_add_memory(&mailobj->attachmentlist, filename, mimetype, data, datalen, mustfree); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_add_attachment_custom (quickmail mailobj, const char* filename, const char* mimetype, char* data, quickmail_attachment_open_fn attachment_data_open, quickmail_attachment_read_fn attachment_data_read, quickmail_attachment_close_fn attachment_data_close, quickmail_attachment_free_filedata_fn attachment_data_filedata_free) +{ + email_info_attachment_list_add(&mailobj->attachmentlist, filename, mimetype, data, (attachment_data_open ? attachment_data_open : email_info_attachment_open_dummy), (attachment_data_read ? attachment_data_read : email_info_attachment_read_dummy), attachment_data_close, attachment_data_filedata_free); +} + +DLL_EXPORT_LIBQUICKMAIL int quickmail_remove_attachment (quickmail mailobj, const char* filename) +{ + return email_info_attachment_list_delete(&mailobj->attachmentlist, filename); +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_list_attachments (quickmail mailobj, quickmail_list_attachment_callback_fn callback, void* callbackdata) +{ + struct email_info_attachment_list_struct* p = mailobj->attachmentlist; + while (p) { + callback(mailobj, p->filename, p->mimetype, p->email_info_attachment_open, p->email_info_attachment_read, p->email_info_attachment_close, callbackdata); + p = p->next; + } +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_set_debug_log (quickmail mailobj, FILE* filehandle) +{ + mailobj->debuglog = filehandle; +} + +DLL_EXPORT_LIBQUICKMAIL void quickmail_fsave (quickmail mailobj, FILE* filehandle) +{ + int i; + size_t n; + char buf[80]; + while ((n = quickmail_get_data(buf, sizeof(buf), 1, mailobj)) > 0) { + for (i = 0; i < n; i++) + fprintf(filehandle, "%c", buf[i]); + } +} + +DLL_EXPORT_LIBQUICKMAIL size_t quickmail_get_data (void* ptr, size_t size, size_t nmemb, void* userp) +{ + struct email_info_struct* mailobj = (struct email_info_struct*)userp; + + //abort if no data is requested + if (size * nmemb == 0) + return 0; + + //initialize on first run + if (mailobj->current == MAILPART_INITIALIZE) { + free(mailobj->buf); + mailobj->buf = NULL; + mailobj->buflen = 0; + free(mailobj->mime_boundary_body); + mailobj->mime_boundary_body = NULL; + free(mailobj->mime_boundary_part); + mailobj->mime_boundary_part = NULL; + mailobj->current_attachment = mailobj->bodylist; + mailobj->current++; + } + + //process current part of mail if no partial data is pending + while (mailobj->buflen == 0) { + if (mailobj->buflen == 0 && mailobj->current == MAILPART_HEADER) { + char* s; + //generate header part + char** p = &mailobj->buf; + mailobj->buf = NULL; + str_append(p, "User-Agent: libquickmail v" LIBQUICKMAIL_VERSION NEWLINE); + if (mailobj->timestamp != 0) { + char timestamptext[32]; + if (strftime(timestamptext, sizeof(timestamptext), "%a, %d %b %Y %H:%M:%S %z", localtime(&mailobj->timestamp))) { + str_append(p, "Date: "); + str_append(p, timestamptext); + str_append(p, NEWLINE); + } +#ifdef _WIN32 + //fallback method for Windows when %z (time zone offset) fails + else if (strftime(timestamptext, sizeof(timestamptext), "%a, %d %b %Y %H:%M:%S", localtime(&mailobj->timestamp))) { + TIME_ZONE_INFORMATION tzinfo; + if (GetTimeZoneInformation(&tzinfo) != TIME_ZONE_ID_INVALID) + sprintf(timestamptext + strlen(timestamptext), " %c%02i%02i", (tzinfo.Bias > 0 ? '-' : '+'), (int)-tzinfo.Bias / 60, (int)-tzinfo.Bias % 60); + str_append(p, "Date: "); + str_append(p, timestamptext); + str_append(p, NEWLINE); + } +#endif + } + if (mailobj->from && *mailobj->from) { + str_append(p, "From: <"); + str_append(p, mailobj->from); + str_append(p, ">" NEWLINE); + } + if ((s = email_info_string_list_concatenate(mailobj->to)) != NULL) { + str_append(p, "To: "); + str_append(p, s); + str_append(p, NEWLINE); + free(s); + } + if ((s = email_info_string_list_concatenate(mailobj->cc)) != NULL) { + str_append(p, "Cc: "); + str_append(p, s); + str_append(p, NEWLINE); + free(s); + } + if (mailobj->subject) { + str_append(p, "Subject: "); + str_append(p, mailobj->subject); + str_append(p, NEWLINE); + } + if (mailobj->header) { + str_append(p, mailobj->header); + } + if (mailobj->attachmentlist) { + str_append(p, "MIME-Version: 1.0" NEWLINE); + } + if (mailobj->attachmentlist) { + mailobj->mime_boundary_part = randomize_zeros(strdup("=PART=SEPARATOR=_0000_0000_0000_0000_0000_0000_=")); + str_append(p, "Content-Type: multipart/mixed; boundary=\""); + str_append(p, mailobj->mime_boundary_part); + str_append(p, "\"" NEWLINE NEWLINE "This is a multipart message in MIME format." NEWLINE NEWLINE "--"); + str_append(p, mailobj->mime_boundary_part); + str_append(p, NEWLINE); + } + if (mailobj->bodylist && mailobj->bodylist->next) { + mailobj->mime_boundary_body = randomize_zeros(strdup("=BODY=SEPARATOR=_0000_0000_0000_0000_0000_0000_=")); + str_append(p, "Content-Type: multipart/alternative; boundary=\""); + str_append(p, mailobj->mime_boundary_body); + str_append(p, NEWLINE); + } + mailobj->buflen = strlen(mailobj->buf); + mailobj->current++; + } + if (mailobj->buflen == 0 && mailobj->current == MAILPART_BODY) { + if (mailobj->current_attachment) { + if (!mailobj->current_attachment->handle) { + //open file with body data + while (mailobj->current_attachment) { + if ((mailobj->current_attachment->handle = mailobj->current_attachment->email_info_attachment_open(mailobj->current_attachment->filedata)) != NULL) { + break; + } + mailobj->current_attachment = mailobj->current_attachment->next; + } + if (!mailobj->current_attachment) { + mailobj->current_attachment = mailobj->attachmentlist; + mailobj->current++; + } + //generate attachment header + if (mailobj->current_attachment && mailobj->current_attachment->handle) { + mailobj->buf = NULL; + if (mailobj->mime_boundary_body) { + mailobj->buf = str_append(&mailobj->buf, NEWLINE "--"); + mailobj->buf = str_append(&mailobj->buf, mailobj->mime_boundary_body); + mailobj->buf = str_append(&mailobj->buf, NEWLINE); + } + mailobj->buf = str_append(&mailobj->buf, "Content-Type: "); + mailobj->buf = str_append(&mailobj->buf, (mailobj->bodylist && mailobj->current_attachment->filename ? mailobj->current_attachment->filename : default_mime_type)); + mailobj->buf = str_append(&mailobj->buf, NEWLINE "Content-Transfer-Encoding: 8bit" NEWLINE "Content-Disposition: inline" NEWLINE NEWLINE); + mailobj->buflen = strlen(mailobj->buf); + } + } + if (mailobj->buflen == 0 && mailobj->current_attachment && mailobj->current_attachment->handle) { + //read body data + if ((mailobj->buf = malloc(BODY_BUFFER_SIZE)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + } + if (mailobj->buf == NULL || (mailobj->buflen = mailobj->current_attachment->email_info_attachment_read(mailobj->current_attachment->handle, mailobj->buf, BODY_BUFFER_SIZE)) <= 0) { + //end of file + free(mailobj->buf); + mailobj->buflen = 0; + if (mailobj->current_attachment->email_info_attachment_close) + mailobj->current_attachment->email_info_attachment_close(mailobj->current_attachment->handle); + //else + // free(mailobj->current_attachment->handle); + mailobj->current_attachment->handle = NULL; + mailobj->current_attachment = mailobj->current_attachment->next; + } + } + } else { + mailobj->current_attachment = mailobj->attachmentlist; + mailobj->current++; + } + } + if (mailobj->buflen == 0 && mailobj->current == MAILPART_BODY_DONE) { + mailobj->buf = NULL; + if (mailobj->mime_boundary_body) { + mailobj->buf = str_append(&mailobj->buf, NEWLINE "--"); + mailobj->buf = str_append(&mailobj->buf, mailobj->mime_boundary_body); + mailobj->buf = str_append(&mailobj->buf, "--" NEWLINE); + mailobj->buflen = strlen(mailobj->buf); + free(mailobj->mime_boundary_body); + mailobj->mime_boundary_body = NULL; + } + mailobj->current++; + } + if (mailobj->buflen == 0 && mailobj->current == MAILPART_ATTACHMENT) { + if (mailobj->current_attachment) { + if (!mailobj->current_attachment->handle) { + //open file to attach + while (mailobj->current_attachment) { + if ((mailobj->current_attachment->handle = mailobj->current_attachment->email_info_attachment_open(mailobj->current_attachment->filedata)) != NULL) { + break; + } + mailobj->current_attachment = mailobj->current_attachment->next; + } + //generate attachment header + if (mailobj->current_attachment && mailobj->current_attachment->handle) { + mailobj->buf = NULL; + if (mailobj->mime_boundary_part) { + mailobj->buf = str_append(&mailobj->buf, NEWLINE "--"); + mailobj->buf = str_append(&mailobj->buf, mailobj->mime_boundary_part); + mailobj->buf = str_append(&mailobj->buf, NEWLINE); + } + mailobj->buf = str_append(&mailobj->buf, "Content-Type: "); + mailobj->buf = str_append(&mailobj->buf, (mailobj->current_attachment->mimetype ? mailobj->current_attachment->mimetype : "application/octet-stream")); + mailobj->buf = str_append(&mailobj->buf, "; Name=\""); + mailobj->buf = str_append(&mailobj->buf, mailobj->current_attachment->filename); + mailobj->buf = str_append(&mailobj->buf, "\"" NEWLINE "Content-Transfer-Encoding: base64" NEWLINE NEWLINE); + mailobj->buflen = strlen(mailobj->buf); + } + } else { + //generate next line of attachment data + size_t n = 0; + int mimelinepos = 0; + unsigned char igroup[3] = {0, 0, 0}; + unsigned char ogroup[4]; + mailobj->buflen = 0; + if ((mailobj->buf = (char*)malloc(MIME_LINE_WIDTH + NEWLINELENGTH + 1)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + n = 0; + } else { + while (mimelinepos < MIME_LINE_WIDTH && (n = mailobj->current_attachment->email_info_attachment_read(mailobj->current_attachment->handle, igroup, 3)) > 0) { + //code data + ogroup[0] = mailobj->dtable[igroup[0] >> 2]; + ogroup[1] = mailobj->dtable[((igroup[0] & 3) << 4) | (igroup[1] >> 4)]; + ogroup[2] = mailobj->dtable[((igroup[1] & 0xF) << 2) | (igroup[2] >> 6)]; + ogroup[3] = mailobj->dtable[igroup[2] & 0x3F]; + //padd with "=" characters if less than 3 characters were read + if (n < 3) { + ogroup[3] = '='; + if (n < 2) + ogroup[2] = '='; + } + memcpy(mailobj->buf + mimelinepos, ogroup, 4); + mailobj->buflen += 4; + mimelinepos += 4; + } + if (mimelinepos > 0) { + memcpy(mailobj->buf + mimelinepos, NEWLINE, NEWLINELENGTH); + mailobj->buflen += NEWLINELENGTH; + } + } + if (n <= 0) { + //end of file + if (mailobj->current_attachment->email_info_attachment_close) + mailobj->current_attachment->email_info_attachment_close(mailobj->current_attachment->handle); + else + free(mailobj->current_attachment->handle); + mailobj->current_attachment->handle = NULL; + mailobj->current_attachment = mailobj->current_attachment->next; + } + } + } else { + mailobj->current++; + } + } + if (mailobj->buflen == 0 && mailobj->current == MAILPART_END) { + mailobj->buf = NULL; + mailobj->buflen = 0; + if (mailobj->mime_boundary_part) { + mailobj->buf = str_append(&mailobj->buf, NEWLINE "--"); + mailobj->buf = str_append(&mailobj->buf, mailobj->mime_boundary_part); + mailobj->buf = str_append(&mailobj->buf, "--" NEWLINE); + mailobj->buflen = strlen(mailobj->buf); + free(mailobj->mime_boundary_part); + mailobj->mime_boundary_part = NULL; + } + //mailobj->buf = str_append(&mailobj->buf, NEWLINE "." NEWLINE); + //mailobj->buflen = strlen(mailobj->buf); + mailobj->current++; + } + if (mailobj->buflen == 0 && mailobj->current == MAILPART_DONE) { + break; + } + } + + //flush pending data if any + if (mailobj->buflen > 0) { + int len = (mailobj->buflen > size * nmemb ? size * nmemb : mailobj->buflen); + memcpy(ptr, mailobj->buf, len); + if (len < mailobj->buflen) { + mailobj->buf = memmove(mailobj->buf, mailobj->buf + len, mailobj->buflen - len); + mailobj->buflen -= len; + } else { + free(mailobj->buf); + mailobj->buf = NULL; + mailobj->buflen = 0; + } + return len; + } + + //if (mailobj->current != MAILPART_DONE) + // ;//this should never be reached + mailobj->current = 0; + return 0; +} + +#ifndef NOCURL +char* add_angle_brackets (const char* data) +{ + size_t datalen = strlen(data); + char* result; + if ((result = (char*)malloc(datalen + 3)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return NULL; + } + result[0] = '<'; + memcpy(result + 1, data, datalen); + result[datalen + 1] = '>'; + result[datalen + 2] = 0; + return result; +} +#endif + +DLL_EXPORT_LIBQUICKMAIL const char* quickmail_send (quickmail mailobj, const char* smtpserver, unsigned int smtpport, const char* username, const char* password) +{ +#ifndef NOCURL + //libcurl based sending + CURL *curl; + CURLcode result = CURLE_FAILED_INIT; + //curl_global_init(CURL_GLOBAL_ALL); + if ((curl = curl_easy_init()) != NULL) { + struct curl_slist *recipients = NULL; + struct email_info_email_list_struct* listentry; + //set destination URL + char* addr; + size_t len = strlen(smtpserver) + 14; + if ((addr = (char*)malloc(len)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return ERRMSG_MEMORY_ALLOCATION_ERROR; + } + snprintf(addr, len, "smtp://%s:%u", smtpserver, smtpport); + curl_easy_setopt(curl, CURLOPT_URL, addr); + free(addr); + //try Transport Layer Security (TLS), but continue anyway if it fails + curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_TRY); + //don't fail if the TLS/SSL a certificate could not be verified + //alternative: add the issuer certificate (or the host certificate if + //the certificate is self-signed) to the set of certificates that are + //known to libcurl using CURLOPT_CAINFO and/or CURLOPT_CAPATH + curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); + curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); + //set authentication credentials if provided + if (username && *username) + curl_easy_setopt(curl, CURLOPT_USERNAME, username); + if (password) + curl_easy_setopt(curl, CURLOPT_PASSWORD, password); + //set from value for envelope reverse-path + if (mailobj->from && *mailobj->from) { + addr = add_angle_brackets(mailobj->from); + curl_easy_setopt(curl, CURLOPT_MAIL_FROM, addr); + free(addr); + } + //set recipients + listentry = mailobj->to; + while (listentry) { + if (listentry->data && *listentry->data) { + addr = add_angle_brackets(listentry->data); + recipients = curl_slist_append(recipients, addr); + free(addr); + } + listentry = listentry->next; + } + listentry = mailobj->cc; + while (listentry) { + if (listentry->data && *listentry->data) { + addr = add_angle_brackets(listentry->data); + recipients = curl_slist_append(recipients, addr); + free(addr); + } + listentry = listentry->next; + } + listentry = mailobj->bcc; + while (listentry) { + if (listentry->data && *listentry->data) { + addr = add_angle_brackets(listentry->data); + recipients = curl_slist_append(recipients, addr); + free(addr); + } + listentry = listentry->next; + } + curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients); + //set callback function for getting message body + curl_easy_setopt(curl, CURLOPT_READFUNCTION, quickmail_get_data); + curl_easy_setopt(curl, CURLOPT_READDATA, mailobj); + curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L); + //enable debugging if requested + if (mailobj->debuglog) { + curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); + curl_easy_setopt(curl, CURLOPT_STDERR, mailobj->debuglog); + } + //send the message + result = curl_easy_perform(curl); + //free the list of recipients and clean up + curl_slist_free_all(recipients); + curl_easy_cleanup(curl); + } + return (result == CURLE_OK ? NULL : curl_easy_strerror(result)); +#else + //minimal implementation without libcurl + SOCKET sock; + char* errmsg = NULL; + struct email_info_email_list_struct* listentry; + char local_hostname[64]; + int statuscode; + //determine local host name + if (gethostname(local_hostname, sizeof(local_hostname)) != 0) + strcpy(local_hostname, "localhost"); + //connect + if ((sock = socket_open(smtpserver, smtpport, &errmsg)) != INVALID_SOCKET) { + //talk with SMTP server + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, NULL)) >= 400) { + errmsg = "SMTP server returned an error on connection"; + } else { + size_t n; + char buf[WRITE_BUFFER_CHUNK_SIZE]; + do { + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "EHLO %s", local_hostname)) >= 400) { + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "HELO %s", local_hostname)) >= 400) { + errmsg = "SMTP EHLO/HELO returned error"; + break; + } + } + //authenticate if needed + if (username || password) { + int len; + int inpos = 0; + int outpos = 0; + size_t usernamelen = (username ? strlen(username) : 0); + size_t passwordlen = (password ? strlen(password) : 0); + char* auth; + char* base64auth; + if ((auth = (char*)malloc(usernamelen + passwordlen + 4)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return ERRMSG_MEMORY_ALLOCATION_ERROR; + } + if ((base64auth = (char*)malloc(((usernamelen + passwordlen + 2) + 2) / 3 * 4 + 1)) == NULL) { + DEBUG_ERROR(ERRMSG_MEMORY_ALLOCATION_ERROR) + return ERRMSG_MEMORY_ALLOCATION_ERROR; + } + //leave the authorization identity empty to indicate it's the same the as authentication identity + auth[0] = 0; + len = 1; + //set the authentication identity + memcpy(auth + len, (username ? username : ""), usernamelen + 1); + len += usernamelen + 1; + //set the password + memcpy(auth + len, (password ? password : ""), passwordlen + 1); + len += passwordlen; + //padd with extra zero so groups of 3 bytes can be read + auth[usernamelen + len + 1] = 0; + //encode in base64 + while (inpos < len) { + //encode data + base64auth[outpos + 0] = mailobj->dtable[auth[inpos + 0] >> 2]; + base64auth[outpos + 1] = mailobj->dtable[((auth[inpos + 0] & 3) << 4) | (auth[inpos + 1] >> 4)]; + base64auth[outpos + 2] = mailobj->dtable[((auth[inpos + 1] & 0xF) << 2) | (auth[inpos + 2] >> 6)]; + base64auth[outpos + 3] = mailobj->dtable[auth[inpos + 2] & 0x3F]; + //padd with "=" characters if less than 3 characters were read + if (inpos + 1 >= len) { + base64auth[outpos + 3] = '='; + if (inpos + 2 >= len) + base64auth[outpos + 2] = '='; + } + //advance to next position + inpos += 3; + outpos += 4; + } + base64auth[outpos] = 0; + //send originator e-mail address + fprintf( stderr, "AUTH PLAIN %s\n", base64auth ); + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "AUTH PLAIN %s", base64auth)) >= 400) { + errmsg = "SMTP authentication failed"; + break; + } + } + //send originator e-mail address + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "MAIL FROM:<%s>", mailobj->from)) >= 400) { + errmsg = "SMTP server did not accept sender"; + break; + } + //send recipient e-mail addresses + listentry = mailobj->to; + while (!errmsg && listentry) { + if (listentry->data && *listentry->data) { + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "RCPT TO:<%s>", listentry->data)) >= 400) + errmsg = "SMTP server did not accept e-mail address (To)"; + } + listentry = listentry->next; + } + listentry = mailobj->cc; + while (!errmsg && listentry) { + if (listentry->data && *listentry->data) { + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "RCPT TO:<%s>", listentry->data)) >= 400) + errmsg = "SMTP server did not accept e-mail address (CC)"; + } + listentry = listentry->next; + } + listentry = mailobj->bcc; + while (!errmsg && listentry) { + if (listentry->data && *listentry->data) { + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "RCPT TO:<%s>", listentry->data)) >= 400) + errmsg = "SMTP server did not accept e-mail address (BCC)"; + } + listentry = listentry->next; + } + if (errmsg) + break; + //prepare to send mail body + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "DATA")) >= 400) { + errmsg = "SMTP DATA returned error"; + break; + } + //send mail body data + while ((n = quickmail_get_data(buf, sizeof(buf), 1, mailobj)) > 0) { + socket_send(sock, buf, n); + } + //send end of data + if ((statuscode = socket_smtp_command(sock, mailobj->debuglog, "\r\n.")) >= 400) { + errmsg = "SMTP error after sending message data"; + break; + } + } while (0); + //log out + socket_smtp_command(sock, mailobj->debuglog, "QUIT"); + } + } + //close socket + socket_close(sock); + return errmsg; +#endif +} -- cgit v1.2.3-54-g00ecf